Recent Technology News Back Issues
No.32 Spring 2017
【The 90th Anniversary Special Edition】●GreetingPresident & CEO

Toshikazu Takisawa●Greetings upon the Publication of the 90th Anniversary Special Issue
Senior Excutive Officer Director of Corporate Research and Development Group Mutsuo Aoki
●Upon the Publication of the 90th Anniversary Special Issue
Editorial board of the 90th anniversary special issue of Valqua Technology News

●Transition of Valqua’s technologies and customer value
Looking back at the history of Valqua Technology News and Valqua Review

Senior Fellow

Takahito Nishida●Contribution Congratulations on the 90th Anniversary Special Issue of Valqua’s Establishment
Professor Emeritus at the University of Hiroshima Toshiyuki Sawa

●Contribution Evolving Gasketing and Sealing Technologies
Professor at Mechanical Engineering, National Institute of Technology, Numazu College Takashi Kobayashi●Contribution Congratulations on the 90th Anniversary Year of the Founding

NIPPON VALQUA INDUSTRIES, LTD.

Takao Iwane

former Managing Director (Technical Manager)●Contribution Congratulations on the Publication of the 90th Anniversary Special Issue of Valqua Technology NewsNIPPON VALQUA INDUSTRIES, LTD.

former Managing Director (Technical ･ Business development)

Yoshiaki MoriSummer 2017

●Contribution Memories of My Tenure as CTONIPPON VALQUA INDUSTRIES, LTD. former CTO Hiroyuki Kuroda

●Technical Papers Types and Application of Filler-added PTFE Materials
Corporate Research and Development GroupDevelopment DivisionHigh Performance Plastics Development Division

Youichiro Wada●Technical Papers Accuracy and Mold Direction of PTFE Products

No.33

Corporate Research and Development Group Development Division High Performance Plastics Development DivisionTechnicalServiceSection

No.3

Shigeko Kawai

Corporate Research and Development Group Development Division High Performance Plastics Development Division

TechnicalServiceSection

No.3 Nobuyuki Ota●Technical Papers Introduction and Utilization of Seal Quick SearcherTM（SQS）– Gasket Version –

Sales Group

Technical Solution Division

Toshihiko Enishi●Technical Papers Causes of and Countermeasures for Allophone Trouble in a Piston Seal System for Cylinders
Corporate Research and Development Group

Development Division kenichi Takahashi●Technical Papers Sticking Troubles of O-Rings and CountermeasuresCorporate Research and Development Group

Development Division Masanori Okazaki●Technical Papers Evaluation of the Bolted Flange Connection with PTFE-blended Gasket under High-temperature and Long-term condition
Corporate Research and Development Group●VALQUA’s Technical History●Recent Technology News Back Issues

29

Development Division Kouji SatouNo.31 Summer 2016
[Customer Solutions Special]●Greeting●CommentaryCustomer Solutions and Evaluation Technologies

Senior Excutive Officer

Mutsuo Aoki

Director of Corporate Research and Development Group Corporate Research and Development Group

Development Division●Technical Papers Gasket Clamping Problems and Their Solutions
Corporate Research and Development Group

Takaharu Ikeda

General Manager

Takahiro Fujihara

Development Division

Large Diameter Gland Packing Installation Problem Examples and Installation Guidelines

Corporate Research and Development Group

Masato Hamade

Development Division

Causes of Blister Problems Resulting from High-pressure Gas and Highly Volatile Liquids
Corporate Research and Development Group

Development Division Hirofumi Zushi

Causes of O-ring Transfer Problems and Their Solutions
Corporate Research and Development Group	Lining Pipe Problem Examples

Corporate Research and Development GroupHigh Performance Plastics Development Division

Technical Service Section No.1

Explaining the PTFE Linear Coefficient of Expansion
Division

Development Division

Ryosuke Nishi

Development Division

Yoshifumi Kutsuzawa

Corporate Research and Development GroupDevelopment

Technical Service Section No.3 Nobuyuki Ota

High Performance Plastics Development Division●Contribution	Characteristics of Hydraulic Cylinders Used in Standard Industrial Machinery andTheir Seal System Problems―Responding to the MRO MarketTAIYO,LTD. Toshinori Ueda[Core Japanese Industry-Supporting Elastomer Products Special Issue]● G r eet i ng

President & CEO

Toshikazu Takisawa

Summer 2017

No.30 Winter 2016

● On Issuing the Core Japanese Industry-Supporting Elastomer Products Special Issue● Technical Papers

Senior Excutive Officer

Mutsuo Aoki

Director of Corporate Research and Development Group

High-pressure Hydraulic Seal Systems



Corporate Research and Development Group

Development Division

Zyunichi Yamashita

Low-torque Seals for Rotating Joints



Corporate Research and Development Group

Development Division

Akihiro Nagano● Product Introduction
Developing Radiation Resistant Elastomer Products―High-functional EPDM H3070 and H0880



Corporate Research and Development Group

Development Division

Ken Suzuki

Elastomer Products for Industrial MachineryCorporate Research and Development Group

Development Division

Mitsuru Minami

Elastomer Products for the Beverage Industry



Corporate Research and Development Group

Development Division

Masanori Okazaki

High-Functional Perfluoroelastomer Products

Corporate Research and Development Group

Development Division

Naoki Oosumi

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No.33