Ryozo Furukawa

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Side-illuminated type semiconductor photodetector device and method...
- Patent number 6,483,098
- Issue date Nov 19, 2002
- Oki Electric Industry Co, Ltd.
- Masanobu Kato
- Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information Patent Grant
Semiconductor photoreceiving device
- Patent number 6,399,968
- Issue date Jun 4, 2002
- Oki Electric Industry Co., Ltd.
- Masanobu Kato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor photodetector, method for manufacturing semiconductor...
- Patent number 6,396,117
- Issue date May 28, 2002
- Oki Electric Industry Co., Ltd.
- Ryozo Furukawa
- G02 - OPTICS
Information Patent Grant
Semiconductor photodetector
- Patent number 6,246,097
- Issue date Jun 12, 2001
- Oki Electric Industry Co., Ltd.
- Masanobu Kato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light-receiving device having sloped groove in light...
- Patent number 6,194,771
- Issue date Feb 27, 2001
- Oki Electric Industry Co., Ltd.
- Masanobu Kato
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Integrated semiconductor laser
- Patent number 4,977,569
- Issue date Dec 11, 1990
- Oki Electric Industry Co., Ltd.
- Ryozo Furukawa
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Semiconductor light receiving device and semiconductor part
- Publication number 20030155625
- Publication date Aug 21, 2003
- Masanobu Kato
- B82 - NANO-TECHNOLOGY
Information Patent Application
Semiconductor photoreceiving device
- Publication number 20020005524
- Publication date Jan 17, 2002
- Masanobu Kato
- H01 - BASIC ELECTRIC ELEMENTS