Hiroki Kawashiri

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Yokohama-shi, Kanagawa-ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Light reception element and light shielding structure for optical c...
- Patent number 12,068,421
- Issue date Aug 20, 2024
- NTT Electronics Corporation
- Keiichi Morita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical waveguide device
- Patent number 10,310,159
- Issue date Jun 4, 2019
- NTT Electronics Corporation
- Shigeo Nagashima
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Light Reception Element And Light Shielding Structure For Optical C...
- Publication number 20220399467
- Publication date Dec 15, 2022
- NTT ELECTRONICS CORPORATION
- Keiichi Morita
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
OPTICAL WAVEGUIDE DEVICE
- Publication number 20180136392
- Publication date May 17, 2018
- NTT ELECTRONICS CORPORATION
- Shigeo Nagashima
- G02 - OPTICS