Development of High Durability Electric
Motor Operated Valve by TRIZ

Shinwa Controls Co.,Ltd.
Hidemitsu Ohoka，Katsumichi Hiraoka
Koji Matsuda，Takuji YamamotoToday's Content
Company overview
Purpose of projectOutline of projectApproach of projectAchievement for a projectDevelopment in the futureCompany Overview
 Trade name Shinwa Controls Co.
 Establishment June 21, 1962

（It starts as Shinwa industrial stock association company. ） Establishment December 15, 1967
 The capital
50 million yen
 Activities Precise liquid temperature adjuster，Precise temperature humidity controller，Development, design, manufacturing,and sales of solenoid-controlled valve

 Number of employees

313 people（At the time of, June 30, 2014）
They are 345 people in the entire group.
 Group businesses Shinwa Technos Company，
台湾伸和控制工業股份有限公司

Company Overview
Domestic baseShinwa Technos Co.
Suwa-gun Shimosuwa-cho
Nagano office
Ina City Takato-cho
Kyushu office
Omura city Yuugahara-cho

Kumamoto factoryKuma-gunYamae-sonOverseas branch

Headquarters
Kawasaki City
Aso-kuOsaka OfficeOsaka CityChuo Ward
Hirano-cho

台湾伸和控制工業股份 Ltd.
China Service center（Shanghai and Beijing）
South Korea Service center（Hwasung）
The United States Service center（Portland）

Our Products
Medical treatment, analysis,
and oil pressure industry

Precise liquid
Temperature-control
deviceValve

Solenoidcontrolled
valve

uidc

ChillerAll-in-one
designSystemT&Hon

T&Htroltec

Ultra clean
DeviceGassy contaminant removal controllChiller

Precise temperaturehumidity
Controller

Temperature and moisturecontrol

F

Highspeed
response
valve

Temperature limiting

Motoriz
ed valve

Flow rate control

Latchtypeelectrom
agneticvalve

Semiconductor, liquid crystal, and organic EL industry

Dry airgeneration
deviceSystemT&H

hnologChemicalremoval
deviceyValve Product (equipment business)
Medical equipment・Instrument for analysis・Fuel cell・Space satellite etc.
It uses it for the fluid control in an industrial field that covers wide range.
 Direct driven type without coupling
Control of wide fluid pressure Diaphragm typeThe fluid and iron are separated, and it corresponds to thecorrosive fluid.
 Magnet latch type
Conservation of energy that consumes electric power only
when valve opening and shutting is switched Motorized valveA highly accurate flow rate control
is achieved by the motor drivecontrol.

Device Product (device business)
Necessary temperature and device inmanufacturing process of semiconductor andFPD that manages humidity
 Heat removal in wafer generation process Tepid and moisture control in spreading anddevelopment process Heat removal at etching Temperature limiting of wafer inspection, dicing,and final inspection
 Temperature limiting of liquid crystal panel etchingequipment
The technology of our company uses it by all scenes inthe semiconductor manufacturing process.

Purpose of Project
The development case with the device business is announced in the 8thJapanese TRIZ symposium 2012.

H960

Footprint１／２！

Conventional model

The equipment designer also
participates in the device project.

Miniaturization

TRIZ that succeeds in the device business is developedwith the equipment business (valve).

Purpose of ProjectTwo developments that use TRIZ progresses in the fieldof the solenoid-controlled valve and the motorized valve.
When you achieve
large flowing
quantity and a high

The control
accuracy
When you raise
it…

resisting pressure…

Shapegrows.

Upgrade of valve productDurabilityfalls.

Outline of Project
The matter that unifies the progressing development is generated.

I want toupgrade thedevice
function. ・・・

The valve
becomes abottleneck.

Outline of Project
Valve development"Three key words"

Control
Resolution

Resolution several
thousand or more

Operation

Purified water

Durability

Correspondence

It is a continuous
work for ten years.
It is 3,650 days for
24 hours.
It keeps operating.

Motorizedvalve

Resistivity18MΩ・cm

Electric conductivity
0.055μS/cm at 25℃

Comparative example of electric conductivity（at 25℃）
 Tap water：Some.100～200μS/cm
 Seawater：Some.50,000μS/cmApproach of ProjectFeature of general motorized valve
ProductFeatureMerit

Weak point

AThe flow
coefficient islarge.

The driving
performance isstrong.

Control
unsuitability ofslight flowingquantity

B

Resolution isgood.

The reliability of themotor is good.

There are a lot ofmovable
components.

CCheapness

The moving part isfew.

Resolution is bad.

It's hard to please everybody
It is low longevity though is efficient.
It is a low performance though it is high longevity.

Approach of Project
Example of flowing quantity characteristic of general motorized valve

The range that can be divided is few.

Approach of Project
Flow of the entire TRIZ
Making of problem
essence..(.. extraction ofprimary cause)

Reference literature: Idea Ltd.

Theme decision

Function attribute analysis

Cause-consequence analysis

Foundation cause extraction

Technological contradiction definition

Idea puttingout by TRIZ

Idea putting outby invention principle

Examination of ultimate ideal solution

Idea putting outby pattern of evolution

Idea putting out fromknowledge DB and SFR

Association and growth/BS of idea
Arrangement/classification of idea

Making of idea
effective(selection andconnection)

Absolute gradingof system

Uniting of ideas of each subsystem

Generation of concept of main system

Absolute grading of the final system concept

Selection of commodity concept

ARIZ

Approach of Project An adequate problem definition is indispensable to show an excellent
idea.
 Do to grip the true nature of the problem?
 The system whole image is obtained and a down shot and newawareness are obtained.

The function attributeanalysis is executed.

It is a down shot as for the function
relation of each element of the entiresystem.

The relation of each element of the motorized valve is arranged.

Approach of Project
System model chart（Excerpt from Goldfire）

Useful action
Adverse effectExample) Motor
A useful action: The gear is turned.
The adverse effect: The abrasion
powder is generated.
⇒Measures indispensability todecrease abrasion powder

Approach of Project
After the relation of each element is arranged, a potential
risk and remedial measures of each element areexamined.
Design FMEA table

Approach of Project
Electric valve demand for quality
 There shall be operationdurability.
 The flowing quantity
characteristic shall be a linear
characteristic (linearity).
 The purified water should be able
to be used.

The maximum error margin with linear approximation：1/3 of present goodsThe operation durability is being evaluated now.
Correspondence to the purified water uses the material
with the tolerance through the material evaluation.

Achievement for a Project• The experience of succeeding in the device
business was able to be developed with theequipment business.
• The beginning of the solution was able tobe gripped by arranging the problem(problem) to difficult development.
• The experience that the conception of theidea changes was able to be done byputting a new view in the act ofdevelopment that had been done up to now.

Development in the Future
Our corporate principles

 An excellent product and the technology that wins the customer's
strong support are offered.
It becomes the proposal type corporate.
 It wishes employee's happiness, and the employee is pleased by
the prosperity of the enterprise.
It becomes a company that works by one's best.
 Symbiosis with the region is aimed at, and it becomes corporatethat contributes to the development of an economic culture of
the regional society.

• This project is promoted, and development is ended.
• The approach by the development matter isincreased, and the value improvement of ourproduct is promoted.

Thank you for listening.

Shinwa Controls Co.