Yoshiharu Muroya

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Distributed feedback type semiconductor laser device having gradual...
- Patent number 6,577,660
- Issue date Jun 10, 2003
- NEC Corporation
- Yoshiharu Muroya
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for manufacturing diffraction grating and method for manufac...
- Patent number 6,495,384
- Issue date Dec 17, 2002
- NEC Corporation
- Takao Morimoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Distributed-feedback semiconductor laser
- Patent number 6,111,906
- Issue date Aug 29, 2000
- NEC Corporation
- Yoshiharu Muroya
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method of forming micropattern
- Patent number 5,693,453
- Issue date Dec 2, 1997
- NEC Corporation
- Yoshiharu Muroya
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Method for fabricating InP diffraction grating and distributed feed...
- Patent number 5,668,047
- Issue date Sep 16, 1997
- NEC Corporation
- Yoshiharu Muroya
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
SEMICONDUCTOR LASER, LIGHT SOURCE UNIT, COMMUNICATION SYSTEM, AND W...
- Publication number 20180175589
- Publication date Jun 21, 2018
- RENESAS ELECTRONICS CORPORATION
- Shunsuke NOZU
- H01 - BASIC ELECTRIC ELEMENTS