Toshihiro Igawa

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Shinjuku-ku, JP

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Patents Grantslast 30 patents

Information Patent Grant
Multi-stage batch polishing method for end surface of optical fiber...
- Patent number 10,981,256
- Issue date Apr 20, 2021
- NTT Advanced Technology Corporation
- Kenji Aoki
- B24 - GRINDING POLISHING
Information Patent Grant
Polishing sheet equipped with nano-silica polishing particles, and...
- Patent number 10,451,816
- Issue date Oct 22, 2019
- Mipox Corporation
- Toshihiro Igawa
- B24 - GRINDING POLISHING

Patents Applicationslast 30 patents

Information Patent Application
MULTI-STAGE BATCH POLISHING METHOD FOR END SURFACE OF OPTICAL FIBER...
- Publication number 20180345440
- Publication date Dec 6, 2018
- NTT Advanced Technology Corporation
- Kenji Aoki
- B24 - GRINDING POLISHING
Information Patent Application
POLISHING SHEET EQUIPPED WITH NANO-SILICA POLISHING PARTICLES, AND...
- Publication number 20180341068
- Publication date Nov 29, 2018
- Mipox Corporation
- Toshihiro Igawa
- G02 - OPTICS