Keisuke OOYAMA

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Separator for electrochemical elements, and electrochemical element...
- Patent number 10,964,986
- Issue date Mar 30, 2021
- Mitsubishi Paper Mills Limited
- Keisuke Ooyama
- D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
Information Patent Grant
Separator for electrochemical elements and electrochemical element...
- Patent number 10,818,898
- Issue date Oct 27, 2020
- MITSUBISHI PAPER MILLS LIMITED
- Toshihiro Shigematsu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEPARATOR FOR ELECTROCHEMICAL ELEMENTS, AND ELECTROCHEMICAL ELEMENT...
- Publication number 20190252661
- Publication date Aug 15, 2019
- MITSUBISHI PAPER MILLS LIMITED
- Keisuke OOYAMA
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
SEPARATOR FOR ELECTROCHEMICAL ELEMENTS AND ELECTROCHEMICAL ELEMENT...
- Publication number 20190148697
- Publication date May 16, 2019
- MITSUBISHI PAPER MILLS LIMITED
- Toshihiro SHIGEMATSU
- H01 - BASIC ELECTRIC ELEMENTS