Akira KUMAZAWA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Friction member, friction material composition, friction material,...
- Patent number 11,187,294
- Issue date Nov 30, 2021
- SHOWA DENKO MATERIALS CO., LTD.
- Akira Kumazawa
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
FRICTION MEMBER, FRICTION MATERIAL COMPOSITION, FRICTION MATERIAL,...
- Publication number 20210062883
- Publication date Mar 4, 2021
- Hitachi Chemical Company, Ltd.
- Akira KUMAZAWA
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...