Tetsuya ISHIKAWA

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Shinagawa-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical sheet and optical component
- Patent number 11,345,132
- Issue date May 31, 2022
- SUMITOMO BAKELITE CO., LTD.
- Takuya Oyama
- B32 - LAYERED PRODUCTS
Information Patent Grant
Optical sheet and optical component
- Patent number 11,119,260
- Issue date Sep 14, 2021
- SUMITOMO BAKELITE CO., LTD.
- Takuya Oyama
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL SHEET AND OPTICAL COMPONENT
- Publication number 20200310015
- Publication date Oct 1, 2020
- SUMITOMO BAKELITE CO., LTD.
- Takuya OYAMA
- G02 - OPTICS
Information Patent Application
OPTICAL SHEET AND OPTICAL COMPONENT
- Publication number 20200249378
- Publication date Aug 6, 2020
- SUMITOMO BAKELITE CO., LTD.
- Takuya OYAMA
- G02 - OPTICS