JSSE holds Spring Lecture Meeting and General Meeting
June. 4, 2019
The Japan Society of Spring Engineers (JSSE) held its semiannual Lecture Meeting, including a postersession, and Annual General Meeting at Meiji University in Tokyo on June 4.
Lecture Meeting
Eight general lectures and one special topic lecture
were presented to 143 attendees in a hall on theTokyo Surugadai Campus of the Meiji University.
The opening speech was presented by Mr. HaruhikoShiba, a Vice-Chairperson of JSSE in charge ofresearch activities and a Managing Officer, Memberof the Board of Chuo Spring Co., Ltd.

7. Nonlinear Analysis of Large Deformation in a
Flexible Thin Circular Ring (In the Case of Lower
End Support), by Dr. Atsumi Ohtsuki of Meijo
University.
8. Influence of crystal structure of nitrided compound
layer on torsional fatigue strength of SCM435, byYoshitomi Yamada of Isuzu Motors Limited.

Mr. Haruhiko Shiba

Special Topic Lecture
Title: Railway Bogie - Suspension system and recent
development
Lecturer: Mr. Takuji Nakai of Nippon SteelCorporation.

Titles of General Lectures and Presenters
1. Hydrogen Embrittlement Resistance of Ti -B
Added High Strength Steel for Leaf Spring, byMr. Hiroaki Suzuki of Aichi Steel Corporation.
2. Effect of Mo on nitriding kinetics of high carbon
steel wire rods, by Mr. Masato Yuya of Nippon
Steel Corporation.
3. The characteristics of stainless steel wire forsprings by using duplex stainless steel, by Mr.
Hiroyuki Enokida of Suzuki-Sumiden StainlessSteel Wire Co., Ltd.
4. Phase transformation of austenitic steel 316L on
micro shot peening process, by Dr. Hatsuhiko
Usami of Meijo University.
5. Improvement in Fatigue Limit by Ultrasonic Shot
Peening for High Strength Steel Containing
Crack-like Surface Defect, by Dr. Hideki Okada ofNHK Spring Co., Ltd.
6. X-ray Triaxial Residual Stress Measurement ofSpring Steel with Shot-peening by The Cos(α)
Method, by Mr. Tomohiro Yamazaki of Mitsubishi
Steel MFG. Co., Ltd.

Mr. Takuji Nakai

Poster Session
Six technical posters were displayed in the samehall. A brief explanation was given by arepresentative for each of the posters on thespeaker’s platform for the lecture meeting, followedby question and answer session at the posters. The
top two posters were selected based on theparticipants’ voting.

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SCD-5

VF-712ST,

Mr. Takehiro Ishii

Spring Clamps

Mr. Kazuya Inamoto

The First Place Poster:
Evaluation of Effect of Small Defects onFatigue Limit of Spring Steel, by Mr. Takehiro
Ishii of Yokohama National University, et al.
Second Place Poster:Vibration Isolator Using Foldable Structureand Air Spring, by Mr. Kazuya Inamoto of Meiji
University, et al.

Bow shooting boy

Presentation Ceremony of Certificates of Spring
Technological Heritage
Four certificates of Spring Technological Heritage
were presented to four parties to express JSSE’s
appreciation for their preservation of springs andmachines of historical value. The awarded springsand machines are as follows:
1) Coiling Process Controller, SCD-5, owned by Itaya
Engineering Ltd.
2) Coiling Machine, VF-712ST, owned by Shinko
Machinery Co., Ltd.
3) Spring Clamps for liquid lines, manufactured byTogo Seisakusyo Corporation.
4) Karakuri puppets, Bow shooting boy andCalligrapher doll, owned by Kurume City.

Calligrapher doll

Recipients of the CertificatesDr. Yuji Nakasone2

Annual General Meeting
The annual general meeting was held after theclosing speech of the lecture meeting presented by Dr.
Yuji Nakasone, JSSE Chairperson and a Professor ofTokyo University of Science, in the same room. The
meeting was led by Mr. Yoshiharu Sugawara, aDirector of JSSE and a Technical Director and Sales
Procurement Director of Horikiri Inc. During themeeting, six proposals, 2018 Annual Business
Report, 2018 Settlement of Balance Report, 2019
AnnualBusinessPlan,
2019
Budget,Recommendations of Honorary Members and Reelection of Officers were approved.

Mr. Masahiko Nakatani

Dr. Akira Tange, an Honorary Member of JSSE,
made a toast to the development of the springindustry and the participants’ health.

General Meeting
Dr. Akira Tange

Reception
A reception was held after the Annual General
Meeting in a hall in the same campus. Dr. Masao
Hayakawa, a new Chairperson of JSSE justapproved by the general meeting and a HeadResearcher of National Institute for Materials
Science, made the opening speech, followed by theguest speech by Mr. Masahiko Nakatani, an
Executive Director of the Japan Spring
Manufacturers Association (JSMA.)

As time passed with active information exchangeand chatting, the reception was over with closing
talk by Mr. Noriyasu Kaga, a Director of JSSE and aManager of Mitsubishi Steel MFG. Co., Ltd. after aleaving speech by Dr. Motoaki Osawa, just left ViceChairperson of JSSE and a Professor of Tokyo Denki
University.

Dr. Motoaki Osawa
Dr. Masahiko Hayakawa

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