Ryohei Takei

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Electro-optical modulator
- Patent number 9,829,726
- Issue date Nov 28, 2017
- National Institute of Advanced Industrial Science and Technology
- Toshihiro Kamei
- G02 - OPTICS
Information Patent Grant
Optical semiconductor device
- Patent number 9,690,122
- Issue date Jun 27, 2017
- National Institute of Advanced Industrial Science and Technology
- Toshihiro Kamei
- G02 - OPTICS
Information Patent Grant
Interlayer light wave coupling device
- Patent number 9,435,946
- Issue date Sep 6, 2016
- National Institute of Advanced Industrial Science and Technology
- Youichi Sakakibara
- G02 - OPTICS
Information Patent Grant
Semiconductor pointed structure and method for fabricating same, sp...
- Patent number 8,965,157
- Issue date Feb 24, 2015
- National Institute of Advanced Industrial Science and Technology
- Youichi Sakakibara
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL SEMICONDUCTOR DEVICE
- Publication number 20160357035
- Publication date Dec 8, 2016
- NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
- Toshihiro Kamei
- G02 - OPTICS
Information Patent Application
ELECTRO-OPTICAL MODULATOR
- Publication number 20160349545
- Publication date Dec 1, 2016
- NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
- Toshihiro Kamei
- G02 - OPTICS
Information Patent Application
INTERLAYER LIGHT WAVE COUPLING DEVICE
- Publication number 20160139334
- Publication date May 19, 2016
- NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
- Youichi Sakakibara
- G02 - OPTICS
Information Patent Application
SEMICONDUCTOR POINTED STRUCTURE AND METHOD FOR FABRICATING SAME, SP...
- Publication number 20140199018
- Publication date Jul 17, 2014
- NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
- Youichi Sakakibara
- G02 - OPTICS