The Sixth TRIZ Symposium in JapanThe Innovative Methods to Find andSolve Problems
ー The Proposal on “Two types of Redesigned
Contradiction Matrices” for TRIZ Beginners －Mr. Yuji Mihara(Creative Technology Institute)
Mr. Masahiro Kuwahara (Idea )Mr. Yojiro Fukushima
Dr.Manabu Sawaguchi (Waseda University)
Dr.Tetsuya Hamaguchi (University of Tokyo)
Dr. Hiroshi Osada (Tokyo Institute of Technology)

The Purpose of this Research
In order to define each problem and create ideas, “Two types of Redesigned
Contradiction Matrix(RCM)2 as one of effective TRIZ methods for TRIZ
beginners are developed.

The content of the presentation
１．Introduction
２． Defining the real functional requirement
・ Mind process
・ Task /Functional requirement/Mechanism/ Structure
・ Effect of TRIZ application to the mind process
・ Rethinking functional requirements
３．Methods to create solutions
・Redesigned Contradiction Matrix1(parameters of performance)
・Redesigned Contradiction Matrix2（parameters of shape and design）
・Integration of inventive principles
４．Application of two types of redesigned contradiction matrices
・Guideline to use each parameter
・Case studies
５．Conclusion
21. Introduction*It ‘s hard for TRIZ beginners to use TRIZ as one of problem solving
methods.

Background

What we want to do

The report*We would like to introduce highly-valued TRIZ methods without
any obstacles to master for TRIZ beginners. Through applicationof developed TRIZ methods to real cases, new TRIZ may become“innovative problem-solver “.

*Explanation about how to understand issues
We mainly separate way of thanking about product development andimprovement activities as described below.
1)Stage of thinking about functional characteristic(Upstream stage of product development)
2)Stage of thinking about shape and design parameters of product(design stage to embody product)
We developed “Redesigned Integration Matrices” to be suitable for eachstage.
3

２．Defining the real functional requirement
2-1 Mind process
Figure 1 shows our mind process when
we want to accomplish goal. We callthe tree diagram showing the mind
process the expansion of thoughts
diagram.
The tree diagram proceeds from left toright in the sequence of task,
functional requirement, mechanism,and structure.

Fig.１．
Expansion of Thoughts Diagram
Higher level concept

Lower level concept

Purpose or requirement

Method or design solution

Task

Functional
Requirement

Mechanism

Structure

The diagram can have more than these
4 levels.
Elements to the left express higher
level concepts of purpose or
requirement, whereas, those to theright show lower level concepts ofmethod or design solution.

Person wants
to . . .

Something works . . mechanism. . method. . machine. . system42-1-1 Task
Task
The task expresses what we want to accomplish.
Quality control calls it the Voice of Customer (VOC).
In most cases, the subject of the task is human, like in “(a person) wants
to ... or needs ...”
・ VOC is often an abstract concept.
Difference between task and problem
Task is “what is desired” whereas a problem is “what is not desired.”
Task is “something to achieve” and a problem is “something to solve.”
As problem in the highest level makes narrow range of ideas, task should
be on this position.
5

2-1-2 Functional requirement
To accomplish the set task, we now want to invent something.
The abstract task cannot directly lead to an invention.

We need to clarify what function is required for the invention
which is” functional requirement”.

・A single invention consists of a number of functional requirements.
→ By using a tree diagram, like Figure 1, clarifies them.
・For functional requirement, the subjective in most cases, is what weare about to invent.
Example ： “(Machine) that can ...” or“(Circuit) that is ...”
6

2-1-3 Mechanism
Mechanism
Mechanism meets functional requirement.
Setting one mechanism for each functional requirement is ideal, however,reducing cost or miniaturization may have one mechanism meet
multiple functional requirements, that is to kill two birds with one stone.
Mechanism devised to satisfy one functional requirement often fails tomeet others.
It is rare to satisfy all functional requirements easily.
Selecting mechanism, that is postulating a design solution, can lead toproblems or discrepancies for the first time.

72-1-3 Mechanism
This is the reason for our statement in section “Task” that task should be
set to the highest level of requirement instead of “problem”.
・Starting from problem or discrepancy has already postulated thedesign solution or method, and would hinder the finding of other design
solutions or methods.
・Working in only the right half of the expansion of thought diagram
narrows the range of idea generation.
While we are working in the mechanism stage, we are merely collecting
parts for the solution.
Once all mechanisms are on the desk, we select good ones to compose theoverall structure.
In other words, a structure is an overall design solution that isbalanced assembly of mechanisms.

well8

2-2 Effects of TRIZ application to the mind process
Figure 2
Assume we have designed“Mechanism A” to meet Functional
Requirement 1. This Mechanism A,
however, blocks Functional
Requirement 2.
→ Contradiction occurs

Fig２． Effective Application of
TRIZ to the Mind Process

Task

FR: Functional Requirement

Mech: Mechanism

FR1
Task

Mech A
FR2

TRIZ contradiction matrix works well.
The contradiction between functional
requirements 1 and 2, leads us toselect the invention principal using thecontradiction matrix and we can comeup with a new solution, “Mechanism
B”.

Contradiction
TRIZ Contradiction Matrix
Invention Principal

FR1
Task

Mech BFR2

9

2-3 Rethinking functional requirements
There are, nevertheless, situations when TRIZ does not
solve discrepancies.
We have to spare much efforts when using TRIZ,
in defining the functional requirements, that is in defining
the contradiction.
・When contradiction is well defined, the odds for solving it
are fairly high.
・ We need to rethink the functional requirement 1 and 2 ifthey are correct.

10

Example of the functional requirements
Example ：「 Micro-tweezers 」
Task ：「 “To develop a tipped tool to stack
1 micro-meter cubes using a joystick andviewing with a microscope.” 」 → Fig.3(a)Since the task is to manipulate tiny objects,
tweezers immediately come to mind withfunctional requirements of “Pinching (Close
Tips)” and “Releasing (Open Tips).”

Fig.３
What is the optimum tipped tool?

stage
Two 1m cubes(a) To develop a tipped tool to stack 1 micro-meter cubes
using a joystick and viewing with a microscope

Say we built micro-tweezers shown in
Fig.3(b).
These micro-tweezers can close its tips tohold the cube up, carry it to the target
location, and open its tips, however, cannot
release the cube that gets stuck to a tip.

(b) Mechanism A: Micro-tweezers cannot release object

When an object size is this small, its surface area to volume ratio is so large that
surface force of sticking or static electricity is much greater than volumetric forceof gravity.

11

Example of the functional requirements（ continued ）Example ：「 Micro-tweezers 」（ continued ）We can apply the contradiction matrix in aneffort to resolve the contradiction between
the 2 functional requirements of “Pinching(Close Tips)” and “Releasing (Open Tips),”
however, such an effort is highly likely to fail.
Figure 3(c) shows a design solution to thistask.
It applies voltage to a dielectric bar to holdthe cube with static electricity. Applying
pulses of reverse voltage to the bar will
release the cube.

Fig.３
What is the optimum tipped tool?
(continued)

V Attach
0V
Separate(c) Mechanism B: Dielectric bar attracts and repulses

This design solution has no parts that closeor open.
The functional requirements that we had
first set were misleading.

12The expansion of thoughts diagram in Figure 4 explains this caseFig.４ Rethinking High Level
Functional Requirements

The expansion of thoughts diagram
started as shown in Figure 4(a).
When TRIZ fails to find a solution, wesuggest to rethink the functional
requirements themselves.

Task

Functional Requirement

Mechanism

Pinch (Cls Tips)
AttachMicro-Tweezers

Attract

Maybe the functional requirements ofPinching (Close Tips) and Releasing(Open Tips) are more like methods. How (b) Expansion of Thoughts after Design Modification
can we express what we want toaccomplish in higher level concepts?
Tipped Tool

Release (Opn Tips)

Separate

Dielectric Bar

RepulseThen we realize that the function we really want is the higher level functional
requirement of “To attach the work to the tool and later separate it.”We then discover that if attaching and separating objects meet the task, then“Attraction and Repulsion” can suffice our goal. The new functional
requirements of “Attachment and Separation” lead us to realize that theexpressions like close, open, attract or repulse are more like mechanisms(methods) rather than functional requirements.

13

Furthermore,
if we aim at the great invention of opticaltweezers, we have to rethink the first set
task of “To develop a tipped tool.”
We may not need a tipped tool.

Fig.４ Figure 4 Rethinking High Level
Functional Requirements

Task

Functional
Requirement

Mechanism

Pinch (Close Tips)
Tipped Tool

Micro-Tweezers
Release (Open Tips)

Optical tweezers has no tipped tool.
As we showed in this case the following
strategy proves effective:(a) Expansion of Thoughts before Design Modification

Task

Functional
Requirement

Mechanism
Pinch (Cls Tips)

If TRIZ cannot find a design solution, gobacktorethinkthefunctional
requirements and the task, reset thosehigher level concepts and then reapply
TRIZ to find the design solution.

AttachMicro-Tweezers

Attract
Tipped Tool
Release (Opn Tips)
Separate

Dielectric Bar

Repulse(b) Expansion of Thoughts after Design Modification

14

3. How to Create Solution Proposals
Based on “Contradiction Matrix(CM)” with 30 parameters , it’ s usually
utilized solution method to select some appropriate principles from “40principles” to create ideas in the way of TRIZ thinking.
It ‘s very tough job for TRIZ beginners to select the most suitable parameterfrom 39 on “CM” after analysis of their real problem, even if they define“Functional Requirement(FR)”.
In particular, it’s very difficult for not only TRIZ beginners but some ofskilled TRIZ practitioners to select an appropriate “improving parameter”
and “worsening parameter “ with selected improving one. Because eachparameter on “CM” has a variety of level of abstraction.
On the other hand, most of them basically don’t understand the difference
between” 1 Segmentation” and “2 Taking Out”, “10 Preliminary Action”
and “11 Beforehand Cushioning” . Because they don’t have enoughknowledge regarding Altshuller’s books. In a word, it looks like “big wall”
to overcome when they try to study TRIZ .
15

3-1 Redesigned Two Types of Contradiction Matrices
Upstream stage of product development
We have to focus on “Functional Requirement(FR)” regarding system’sfunction and each element and define a series of problems regarding“Functional Features(FF)” .
Design stage to embody productWe mainly have to focus on the problems (like weight, length, speed, power,
temperature and so on) about concrete means to embody basic design
proposals.
That’s why we have to separate way of thanking about product development
and improvement activities.
* ”STEP ” to consider “Functional Features” on “CM1”* ”STEP” to consider “Concrete Design” on”CM2”
Two types “CM” makes easier to select a pair of appropriate parameters.
16

3-1-1 Redesigned Contradiction Matrix1(RCM1)(Parameter regarding Performance)
In the case of consideration about Functional Requirement of system’sfunction and each element like reliability, harmful effect, maintainability andso on, we recommend TRIZ practitioners apply “RCM1” at first.
“RCM1” shows 13 parameters (F1-F13) focusing on “Functional Features”
from 39 defined by Altshuller based on reconstruction work.
Integrated parameters on “RCM1” acts as a guide to grasp roots of the
problems easily and reach “applicable principles” finally.
Number between “Improving Parameter” and “Worsening Parameter"on ”RCM 1” shows “Inventive Principle” and each number means “Newinventive principle”.
B1 to B4 show “Separation Principle s” for “Physical Contradiction(PC)”.
*B1： Separation in Time
*B2： Separation in Space*B3： Separation Between a whole system and its parts*B4： Separation in Situation
17

Table1 Redesigned Contradiction Matrix1 (Parameter regarding performance)：RCM1
Performance

Worsening
FeatureReliability /Precision

Improveing
FeatureOperability /Durability

Reliability

Precision

HarmfulEffects

Operability

F１
B1,B2,
B3,B4

F２
3,10,
23,1

F３
27,35,1,
40,26

F４
27,17,40,
10,13

Control
Maintenance Adaptability
Complexity /Repairability /Versatility

F５F６27,40,26

1,10,13,35

Amount/Loss

Manufacturability

Durability

F７13,35,
12,24

F８
1,35,3,25,
34,27,26,40

Manufactura-bility,
Productivity

F９Amount/LossofInformation

Amount/Lossof TimeF１０
20,26,40,3,
10,35,24

F１１

F１２

10,26

10,30,4

F１/PrecisioPrecisionnF２

5,10,1,23,3

B1,B2,
B3,B4

26,24,22,
10,35,3,33,
4,17,34

1,13,17,34,
3,23,26,
10,34,15

26,24,
3,

1,3,13,10,
25,27,35,
34,26,15

13,35,1

26,3,
27,40,10,24

HarmfulEffects

Harmful Effects

F３27,24,
1,40,

26,33,23,
3,10,15,
4,17,34

B1,B2,
B3,B4

1,25,26,24,
33,3,34

22,15,26,
40,1,20,
27,

35,10,1,22,
15,26,40,
31

35,10,
22,31

22,35,33,26,
35,33,26,31,
24,35,1,22,
31,17,1,40,
3,24,1,22,
13,15,
20,24,16
15,40,10

Operability

F４17,27,12,
40,10,3,

25,13,1,34,
3,35,23,
26,10,15

1,25,26,
24,33

B1,B2,B3,
B4,1,34,12,
3,26,1334,27,25

12,26,1,3,
25,17,35,13,
24,10

34,1,
16,27,4,
35

26,3,12,
25,1,16,10

1,5,12,
26,13,
35,

F５27,40,
26,12

26,24,3

22,15,26,
1,20

1,5,34,20

B1,B2,
B3,B4

12,26,35,
10,

1,35

15,26,25,
24,35

5,26,10,
35,15

F６

10,1,
26,13,35

10,2,13,1,
26,34,25,
24,3

Control
Operabilit Complexityy

Maintenance/Durabilit /RepairabilityyManufactu

Adaptability/
Versatility

F７

Durability

F８

Manufacturability,
F９
Productivity
Amount/Lossof SubstanceAmount/Loss

EnergyAmount/Lossof Information
Amount/Lossof TimeF１０35,13,
12,24
10,1,13,34,27,
26,40
1,35,
10,24

35,5,1,10
3,10,26,24,
27,16,40
1,35,12,15,
10,34,26,3

35,10,1,
16,22,15,
26,40,
35,10,
3,31
22,35,33,
26,17,1,40,
20,24,16
24,1,22,35,13

15,3,26, 3,1,26,33,30, 35,33,26,31,
40,10,
16,34,31,
3,40,24,
24,35
35,10,24
30,10,1,34,

F１１ 10,26,23
F１２

10,30,4

F１３

15,20,10,
27,35,23,

25,17,37,1,
4,32,10
24,34,26,
3,15

22,10,1,
20
35,15,34,
22,24

3,1,

1,35,26,27,
10,22,
15,20

1,12,26,
27,10,24,
34,35,
34,1,16,
27,35

35,10,
26
1

B1,B2,B3,
B4,35,1,13,10,
1,16,7,4,
35,26,

B1,B2,
B3,B4

10,26,
27,4,
35,1
13,1,
35,16

7,1,4,16,
26,35,

1,35,26,24

Amount/Lossof
Substance

Reliability

Reliability

PerformanceHarmfulEffects

26,35,25,15,
1,13,17,34,
3,23

1,26,3,30,
24,34,26,
13,10,2,34,7
10,16,31,
3,15,24,25,37
35,24
22,10,1,
20,26,

35,15,34,
1,22

12,35,26,3,
1,24,13,10,
15,5

4,10,27,
22,35,33

4,26,10,
34,24,35,
30

3,27,26,15,
1,10,24

35,33,27,
22

15,26,
3,10

1,35,10,
2,26,10,25,
3,1,10,27,26,13,3, 13,3,27,35, 3,9,13,26,1
25,26,
12,17,
34,
1,13,31,
3,35,10,
7,3,10,26,37 35,26
35,26,
1,13
27,1,4,35, 3,35,10,40,
20,10,26,
10,17,14,15, 31,26,27,15,
10
15,16
20,16,24
16,24
B1,B2,B3, 35,23,1,24,
3,24,15,
35,26,
B4,35,1,10,
34,33,
16,13,35,
34,4
26,24
26,10
23

12,27,1,
26,10

15,26,24,
35,25,34,

26,10,27,
1,4,351,35,
13,

B1,B2,
B3,B4

5,13,16,
1,26,7,10,
12,35,

26,10,
1,35,15,27,

35,1,10,
3,25,27,26,
12,17,24

13,1,
35,26,

27,1,4,35,
16,10,15,
20,24

35,26,10,
25,12,3,
1,24,15

3,27,26,
15,35,
10,13

1,3,10,25,
13,27,35,
34,26,24

35,3,26,
10,1

3,35,10,40, 26,1,35,27,
31,26,27,15,
13,3,34,
16,24
33,10,23

27,22,35

35,33

2,10,17,13,

24,5,25,9

10

3,13,
23,35

4,26,10,34,
24,35,30

15,26,
3,10

3,1,10,26,

35,26

20,10,26,
15,16

35,26,34,4

15,35,3,
1,22,

35,24,15,
16,25,3,
23

1,35,17,15,
26,27,7,23

35,17,
13,16

26,35,
15

1,4,26

B1,B2,B3,
B4,
26,3,10,24
24,26,35,
35,24,15,
16,10,
34,23,16,15,
3,35,31,7,
25,24,5,26,
27,1,

24,26,35

35,24,15,
16,10

B1,B2,
B3,B4
24,26,
3

24,26,
3
B1,B2,
B3,B4

15,10

35,24,
15,10,
3,7( We arranged it on the basis of a contradiction matrix of Altshuller4) again. The part of F11 referred to Matrix20035).)）18

3-1-2 Redesigned Contradiction Matrix2 (RCM2)(Parameter regarding Shape & Design)
Design stage to embody productWe have to pick up “contradictions“ focusing on shape and design parameterslike weight, length, speed, power, temperature and so on.
Let us give you for instance,
In order to solve the contradiction
About “Improving strength” VS “Worsening Weight”, please use “table 2”
Number between “Improving Parameter” and “Worsening Parameter"on ”RCM 2” shows “Inventive Principle” and each number means “Newinventive principle” like “RCM1”.
B1 to B4 show “Separation Principle s” for “Physical Contradiction(PC)”.
*B1： Separation in Time
*B2： Separation in Space*B3： Separation Between a whole system and its parts*B4： Separation in Situation19

3-1-2 Redesigned Contradiction Matrix2 ： RCM2
(Parameter regarding shape & design)
Worsening
FeatureImproveing
FeatureWeightof
ObjectD1

Lengthof
ObjectD2
15, 12,
26,34,
10, 1,35

Areaof
ObjectD3
26,17,24,
34,35,
30,13, 1
15,17,
4, 7,
10,40

Speed

Force
/Torque

D5

D6

StressorPressure
D7

26, 1,40,
5,35,14

1,12,
15,24

12,10,
15,35,

10,35,40
13,26,15

7,17, 4,35,12,
1,14

13, 4,
12

17,10,
4,26,

1,12,
35,14

B1,B2,
B3,B4

7,14,
17, 4

26,30,
4,34

15,30,
35 ,1,

1, 7,
4,17

B1,B2,
B3,B4

26, 4,
24,34

15,35, 1,

26,30,
34
15,10,
1,35
10,15,
35,25,

7,26,
B1,B2,
34
B3,B4
15,10,
13,26,
12,35,1
15,12
26,35,
26,35,
10,24
14, 4,15,
35,15,
22, 7,
34,
1,35
10,15,14, 12,13,
7,17
26,14
34,24,
1,26,
40,15,
35,30
35,26,4
1,13,
10,13,
10
15

Weight of Object

D1

B1,B2,
B3,B4

Length of Object

D2

12,15,26,
34,35,40

B1,B2,
B3,B4

Area of Object

D3

Volume of Object

D4

Speed

D5

Force/TorqueD6

Stress or Pressure

D7

Shape

D8

StrengthD9

1,17,26,
4,30,
14,15
1,26,40,
35,10,
15,14
1,26,
13,24
12, 1,35,
15,13,26
10,35,40,
13,26,15
12,10,
26,40,
15, 3
1, 12,40,
15,26,27,

14,15, 4,
26, 7,
10,24
1, 7, 4,35,15,
14, 12,
13,14,
12
17,15,10,
35,26,
35,10, 1,
14,16
26,34, 5,
4,13,14,
10, 7
1,15,12,35,14,26

TemperatureD10

35,22,
26,24, 3

15, 103,35,
24,15,

Illumination
Intensity

D1115, 1,
3,35

15, 3,
16

15, 3,
26

5,34,
4,10
3,34,40,
26,10,

Volumeof
ObjectD4

13,26,
15,
B1,B2,
B3,B4
35,20

Illumination
Intensity

Shape

Strength Temperature

D8
10,14,35,
40,13,
26,14
1,12,10,
26,13,14,15, 7

D926,27,
15,40,
1,10
12,35,
26,34,
15,14

D10
26,20, 4,24,15,
3,22

10,15,
35,26,

5,34,
26, 4

3,31,
40,14

26,35,
24

1,15,26, 10,14,15,
4, 7, 35
7,17

10,13,
15

10,35,
40,34
35, 4,
15,10

12, 3,
26,14
35,10,
14,27
10,15,
3,40

1,15,16,
35,24
34,24,10,
15,35,
26, 4
26,30,
35, 1
35,10,
20
35,24,
15, 1

26,15,
24,40
15,20,
10
B1,B2,
B3,B4

35,15,34

10,15, 3,
35,24,

D11
15, 1,
3,35
3,25
15, 3,
13
1,13,
10

35,10,
40

34,15,
10,14

B1,B2,
B3,B4

30,14,
10,40

22,14,
15, 3

13,15,
3

10,15,
3,14

10, 3,
15,40

10,30,
35,40

B1,B2,
B3,B4

30,10,
40

35,15

35,10,
3,20

35,24,
15, 1

14,22,
15, 3

10,30,
22,40

B1,B2,
B3,B4

3,30,
20,16

3,30

35,15

3,35,15,

B1,B2,
B3,B4

26,15,( We arranged it on the basis of a contradiction matrix of Altshuller4) again.)20

Table3.
Integration of Inventive
Principles
Inventive principles originallyconsist of 40. But it’s very
difficult for TRIZ beginners tounderstand and master them.
Integration of Inventive
principles with similar
meanings

25 New Inventive Principles

NewNo.
A methodof thesegmenta
tion/sepa
rationandcombination
A changeof theshape

A changeof theviewpoint
andthought

A changeof thematerials

A changeof how
to giveenergyA changeof thestate andcharacteristic

New Inventive
Principles(25)1Segmentation/Separation

5
7

Merging"Nested doll"

26

Substitution・Replacement

4
14
17

Asymmetry
Curvature
Another Dimension

10

Preliminary action

13
16
23
25
27
22
34

"The other way round"
About
Feedback
Self-service"Cheap Short-living Objects""Blessing in Disguise"
Discarding and Recovering

3

Local Quality

31
40
30
33

Porous materials
Composite Materials
Flexible Shells and Thin Film
Homogeneity

12

Equipotentiality

15

Vibration

20

Continuity

35

Parameter changes

24

Intermediary

40 Inventive
Principles
1 Segmentation
2 Separation/Taking out
5 Merging
7 "Nested doll"
6 Universality
26 Substitution
Replacement of mechanical28
system
29 Pneumatics and hydraulics
4 Asymmetry
14 Curvature
17 Another dimension
9 Preliminary anti-action
10 Preliminary action
11 Beforehand cushioning
13 "The other way round"
16 About
23 Feedback
25 Self-service
27 "Cheap short-living objects"
22 "Blessing in disguise"
34 Discarding and recovering
3 Local quality
32 Color changes
31 Porous materials
40 Composite materials
30 Flexible shells and thin films
33 Homogeneity
8 Weight Compensation
12 Equipotentiality
15 Dynamization
18 Mechanical vibration
19 Periodic action
20 Continuity
21 Skipping
35 Parameter changes
36 Phase transitions
37 Thermal expansion
24 Intermediary
38 Strong Oxydants
39 Inert atmosphere21

4. Application of Redesigned Contradiction Matrices(RCM)
4-1 Guide to Use Parameters on Matrix 1 (for reference)

About how to use “RCM”
We show the guide(see table4) regarding “F1F13(parameters)” on “RCM1” with some examples aboutmechanics, electronics, software, chemistry, and businessfield as typical usage fields because of difficulty to selectappropriate parameter from RCM1(see table1).
We are going to omit explanation about “shape &design parameters” on “RCM2” because of easiness tounderstand each parameter content.

22

Table4. Guide to Use Parameters[F1-F13] (about Performance)
Reliability

Mechanical

Ability of processing aimed function.

Fewness of the trouble. Fewnessof the unevenness of the
movement.

F１

Electric
Noise characteristics-resistant.
Fewness of the malfunction.

Electric processing precision.
Processing precision
The degree of the accuracy.
Measurement precision.
F２ The degree that the work of theAssembling precision.
system is equal to a demand.
Electric shock. Outbreak of theAffectability of harmful influence from Fever. Noise. Vibration,
Harmful product.
electromagnetic noise. Bad
the system outside or inside.
influence to the human body.
Degree that a system has harmful
Harmful
F３
Harmful Effects
influence to the system outside.
Effects（Include a problem to theenvironment.）
Usability. Simple operation.
Base layout.
The usability of the user.
F４ Degree and a range of the automation Operation to understandOperability
to function without human operation. intuitively.
Complexity in a process to perform to Numerousness of the preparation Speed of the transaction.
Controlin machine tools
F５ make it the output, the state thatComplexity
matched a purpose.
Complexity of the system and ease of Complexity of the system. Number Complexity of the system. Number
Operabilitof components.
of components.
the repair.
Maintenance
Resolvability and simplicity of the Resolvability and simplicity of they
F６ （Include the number of element //Repairability
part exchange.
parts and the number of interaction part exchange.
Maintenance is free.
Maintenance is free.
between element and part.）/Durabilit
Compliance for the input signal.
Difference of the condition that can Flattery characteristics for anyAdaptability/
Adaptability to a wide range.
external factor.
really happen.
F７
Adaptability for many kinds.
Compliance for the change.
Versatility
Flexibility of the use.
Time before a system breaking
Time before system breaking down. Time before a system breaking
down.
down.
Toughness for the condition to
F８
Durability
Stability for the external
Stability for the externalchange during a long term.
factor(Robustness).
factor(Robustness).
Base layout.
Easiness of making of of theEasiness of the production and the
Manufacturability,
Assembling characteristics ofManufactura
F９ degree of a useful function to carry system. The quantity of the
Productivity
system BOX.
product.
out in time.
Number of element of the system,
Number of parts constituting a
Number of electronic parts or
Amount/Losssystemelectric parts.
F１０ the parts and a loss / waste.

/Precision

Performance

Reliability

CommonPrecisionof SubstanceAmount/Loss

Amount/Lossof Information
Amount/Lossof TimeEnergyF１１

Quantity of the signal to treat and aloss / waste.

Mechanical reply. Signal.

Electric current and quantity ofdecrement of the voltage.
Reply speed by the digital circuit.

Software/Information system
Fewness of the bug.
Stable data handling.

Stability/instability of materials.
.

Fewness of the data
handling error.

Vice-reaction.

Amount of the mistake of Stability for the temperature orenvironment(Robustness).
the data handling.
Tolerance for the attack Problem of the harmful thing
generation by the process offrom the outside.
manufacture.
Evil to others with the
The toxic substance which rises fromprocessing.
Plainness of UI.
Easiness of the processing(surface
The number of input
treatment).
operation.
Temperature in the reaction and
Simplicity of thecomplexity of the control of time.
algorithm.
Complexity of the handling of surface
Little processing stepEasiness such as washing
Easiness for a bug.
Independence degree of characteristics.
Easiness of adhesion.
the module.
Number of modules.
Number of IO parameters.
Adaptability to the
Adaptability with the adjacent thing.
condition change.
Adaptability to different
terms of use.
Strength of materials.
Time before breaking
Easiness of deterioration.
down.
Tolerance of terms ofuse to change for long
Easiness of assembling of Easiness of making of.
Number of the steps of the reaction.
the module.
Algorithm that it is easy
Quantity of a necessary Number of kinds of the constitution
compound.
resource.
Quantity or change of the density.
Waste.
Having a large quantity of The change of the color.
Optically-transparent degree.
processing data or not
Kind and number to treatof data and parameters.
Handling of data time
Time before reaching enough quantityof solidification and the coherency.

Time to start.
Operating time of the system.
Time to the end.
Setup time for system delay.
Handling of electrical signal delay
Waiting time.
Production baton time.
time.
Energy and the use efficiency to use Energy consumption in the system. The decrement of the input electric Energy and efficiency
that a resource uses.
Conversion efficiency
current.
when a system or an element does
F１３ useful action.
Conversion efficiency.
Operating time and degree of theF１２ non-efficiency(ex.waiting time) .

Chemical

Energy consumption in the system andconversion efficiency.
Energy outbreak efficiency.
Supplement efficiency of the Light or
oxygen.

23

4-2 Examples of the Application
4-2-1 Case Example １：cleaner
Case Example1
By increasing suction power of cleaner
We try to solve the contradiction with “A:improving suction power” VS“B:worsening pick up power of trash on the floor “■To apply RCM1(see table 1)
New inventive principle
A :Improving parameter F10:mass of material
B:Worsenning parameterF4:easiness of operation

35, 26, 10, 25, 12,31,
1,24,15

We want to describe some ideas(see next slide) we create by using selected
inventive principles.
24Case Example １：cleaner

New Inventive Principles

Idea

35.Parameter Change*look for other parameters(like flow rate and current speed) to increase suction power>>>>Please move to “RCM2”.
26. Substitution*Utilize gas fluid but air *cleaner based on magnetic attractive force*cleaner based on static electricity *combined application of water
10. Preliminary action*Control the balance between suction power and mobility after memorization ofsituation on floor in the house *Buoy dust by blowing before suction
25.Self-Service*automatic running cleaner

2512. Equipotentiality (balance)* being reversed with negative pressure>>>>making back-flow in interior portion ofcleaner based on the airstream in the upper side of cleaner*Generate atmospheric pressure in the lower side of cleaner (making blowing unit)
3.Local Quality*change the air flow based on the location*change the air flow according to the quantity of dust
1.Segmentation*making the flow like nervation
24.Intermediary* usage of roller made of adsorptive material
15. Vibration （Dynamization）* decrease suction power a little for a moment when cleaner’s nozzle stick to the floor
by strong suction power

26

“Improving suction power of cleaner”
About Contradiction “A:We want to absorb dust efficiently” VS“B :Cleaner’s nozzle stick to the floor by suction power ”■ In the case of Altshuller’s matrix table
A>>>> “26 Amount of substance” is selected
B>>>> ”33 Convenience of use” is selected

Inventive principle
３５，２９，１０，２５

35 ,10 and 25 is extracted from RCM1 too and 29 is organized to newprinciple 26 on RCM1.
However, other principles(12,3,1,24,15) are not in RCM1. Therefore we
can’t see these principles if we use conventional matrix table. That is to say,This table (RCM1) is very useful when we create a lot of ideas extensively
In particular, Cleaner with air cycle system focusing on decreasing
emission and controlling suction power has been produced on a commercial
basis . New cleaner (TOSHIBA VC-Z57) was developed by utilizing
12.Equipotentiality (balance) .
27

Case Example 2： lithium ion battery
Case Example2
We try to solve the contradiction with “A:improving high voltage andgreat capacity of battery” VS “B:worsenning deterioration of electrode
Point1 “A: Reliability” VS “B:Durability”
Point2 ” A:Energetic performance” VS ”B: Amount of substance■ Application of RCM1(see table 1) from point1 New Inventive principle
Feature to improve A F1.Reliability
Undesired Result B

F8.Durability■ By using Altshuller’s CM
Feature to improve A 27.Reliability
Undesired Result B

1,35,3,25,34,27,26,40
Inventive principle
2,35,3, 25

15.Durability

Inventive principle 2 at Altshuller’s CM is same to new inventive
principle1(see table3) at RCM1. But we can’t see 34 of new inventive principle(Discarding and Recovering).
28

■ Application of RCM1(see table 1) from point 2
New Inventive principle
Feature to improve A F13. Energetic performance
Undesired Result B

F10.Amount of substance■ By using Altshuller’s
CM Feature to improve A 20.Energy spent by
non-moving object

34,23,16,15,3,35,31,7,
25,5,26,27,1

Inventive principle
3,35,31

Undesired Result B 26.Amount of substance
We can’t see 23 of new inventive principle (Feedback).

34:Discarding and Recovering

23:Feedback

In order to keep unchangeable basic structureof electrode by discharge and charge, it should
be utilize transition metal oxide installedlithium ion as a negative electrode

In order to prevent change of negative electrode, it should be
supplied “what has changed”.
29

5. Conclusion
All engineers working at any place have any problems to solve byapplying many different methods. Therefore, we need to use “TRIZ” as“a highly-valued method” to get effective solutions without spending
wasteful time.
On the other hand, TRIZ beginners face “Chinese Wall” to master TRIZ
methodology. In order to overcome this wall(obstacle),they have to define“problems to solve” at first.
We selected “Contradiction Matrix (CM)” to define and solve problems
because of the most understandable method for TRIZ beginners in TRIZ
field.
That is why we developed “two types of Redesigned Contradiction
Matrix(RCM)” for TRIZ beginners as previously explained.
TRIZ beginners should use “Two Types of RCM” based on “Step by Step
thinking”.
We hope that many TRIZ beginners actively use “developed RCM” toovercome “Chinese Wall”.
30