Ryoichi Nakanishi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Separation material
- Patent number 10,898,877
- Issue date Jan 26, 2021
- SHOWA DENKO MATERIALS CO., LTD.
- Masaru Watanabe
- G01 - MEASURING TESTING
Information Patent Grant
Separation material
- Patent number 10,875,008
- Issue date Dec 29, 2020
- SHOWA DENKO MATERIALS CO., LTD.
- Masaru Watanabe
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Optical fiber and method for producing the same
- Patent number 7,050,677
- Issue date May 23, 2006
- PENTAX Corporation
- Masahiro Fushimi
- G02 - OPTICS
Information Patent Grant
Optical communication device
- Patent number 6,996,311
- Issue date Feb 7, 2006
- PENTAX Corporation
- Masahiro Fushimi
- G02 - OPTICS
Information Patent Grant
Circuit board and system for testing the same
- Patent number 6,624,652
- Issue date Sep 23, 2003
- PENTAX Corporation
- Mikio Horie
- G01 - MEASURING TESTING
Information Patent Grant
Optical system for optical disk drive
- Patent number 6,529,465
- Issue date Mar 4, 2003
- PENTAX Corporation
- Toshiyuki Kase
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical disc drive
- Patent number 6,341,106
- Issue date Jan 22, 2002
- Asahi Kogaku Kogyo Kabushiki Kaisha
- Ryoichi Nakanishi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
SEPARATION MATERIAL
- Publication number 20180264435
- Publication date Sep 20, 2018
- Hitachi Chemical Company, Ltd.
- Masaru WATANABE
- C07 - ORGANIC CHEMISTRY
Information Patent Application
SEPARATION MATERIAL
- Publication number 20170368533
- Publication date Dec 28, 2017
- Hitachi Chemical Company, Ltd.
- Masaru WATANABE
- G01 - MEASURING TESTING
Information Patent Application
OPTICAL COMMUNICATION DEVICE
- Publication number 20060013535
- Publication date Jan 19, 2006
- PENTAX CORPORATION
- Masahiro Fushimi
- G02 - OPTICS
Information Patent Application
Optical fiber and method for producing the same
- Publication number 20040120646
- Publication date Jun 24, 2004
- PENTAX CORPORATION
- Masahiro Fushimi
- G02 - OPTICS
Information Patent Application
Circuit board and system for testing the same
- Publication number 20010039486
- Publication date Nov 8, 2001
- ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
- Mikio Horie
- G01 - MEASURING TESTING
Information Patent Application
Optical system for optical disk drive
- Publication number 20010026524
- Publication date Oct 4, 2001
- ASAHI KOGAKU KOGYO KABUSHIKI KAISHA
- Toshiyuki Kase
- G11 - INFORMATION STORAGE