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Kosuke OKAHASHI
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical waveguide device, manufacturing method of optical modulatio...
Patent number
11,977,284
Issue date
May 7, 2024
Sumitomo Osaka Cement Co., Ltd.
Masayuki Motoya
G02 - OPTICS
Information
Patent Grant
Optical modulator
Patent number
11,940,708
Issue date
Mar 26, 2024
Sumitomo Osaka Cement Co., Ltd.
Norikazu Miyazaki
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL WAVEGUIDE ELEMENT, OPTICAL MODULATOR, OPTICAL MODULATION MO...
Publication number
20230367169
Publication date
Nov 16, 2023
Sumitomo Osaka Cement Co., Ltd.
Kosuke Okahashi
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE ELEMENT, AND OPTICAL MODULATION DEVICE AND OPTICA...
Publication number
20230221590
Publication date
Jul 13, 2023
Sumitomo Osaka Cement Co., Ltd.
Masayuki MOTOYA
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE ELEMENT AND OPTICAL MODULATOR
Publication number
20230026594
Publication date
Jan 26, 2023
Sumitomo Osaka Cement Co., Ltd.
Kosuke OKAHASHI
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE DEVICE, OPTICAL MODULATOR, OPTICAL MODULATION MOD...
Publication number
20220382119
Publication date
Dec 1, 2022
Sumitomo Osaka Cement Co., Ltd.
Shotaro Hirata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
OPTICAL WAVEGUIDE DEVICE, MANUFACTURING METHOD OF OPTICAL MODULATI...
Publication number
20220381977
Publication date
Dec 1, 2022
Sumitomo Osaka Cement Co., Ltd.
Masayuki Motoya
G02 - OPTICS
Information
Patent Application
OPTICAL WAVEGUIDE DEVICE, OPTICAL MODULATOR, OPTICAL MODULATION MOD...
Publication number
20220308418
Publication date
Sep 29, 2022
Sumitomo Osaka Cement Co., Ltd.
Yu Kataoka
G02 - OPTICS
Information
Patent Application
OPTICAL MODULATOR
Publication number
20220197104
Publication date
Jun 23, 2022
Sumitomo Osaka Cement Co., Ltd.
Norikazu MIYAZAKI
G02 - OPTICS
Information
Patent Application
OPTICAL MODULATOR
Publication number
20220179247
Publication date
Jun 9, 2022
Sumitomo Osaka Cement Co., Ltd.
Kosuke OKAHASHI
G02 - OPTICS
Information
Patent Application
OPTICAL MODULATOR
Publication number
20220146901
Publication date
May 12, 2022
Sumitomo Osaka Cement Co., Ltd.
Norikazu MIYAZAKI
G02 - OPTICS