Masahiko Namiwaka

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical element holder and optical communication module
- Patent number 7,641,401
- Issue date Jan 5, 2010
- NEC Corporation
- Masahiko Namiwaka
- G02 - OPTICS
Information Patent Grant
Semiconductor laser module and method of assembling the same
- Patent number 7,308,012
- Issue date Dec 11, 2007
- NEC Corporation
- Masahiko Namiwaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser module
- Patent number 6,965,627
- Issue date Nov 15, 2005
- NEC Corporation
- Masahiko Namiwaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser module with an external resonator including a b...
- Patent number 6,411,639
- Issue date Jun 25, 2002
- NEC Corporation
- Masahiko Namiwaka
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Optical fiber amplifier
- Patent number 6,252,701
- Issue date Jun 26, 2001
- NEC Corporation
- Masahiro Kanda
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL MODULE AND METHOD OF MANUFACTURING THE SAME
- Publication number 20210396943
- Publication date Dec 23, 2021
- SANWA DENKI KOGYO CO., LTD.
- Masahiko NAMIWAKA
- G02 - OPTICS
Information Patent Application
Semiconductor laser module and method of assembling the same
- Publication number 20040264538
- Publication date Dec 30, 2004
- Masahiko Namiwaka
- G02 - OPTICS
Information Patent Application
Optical element holder and optical communication module
- Publication number 20040264891
- Publication date Dec 30, 2004
- Masahiko Namiwaka
- G02 - OPTICS
Information Patent Application
Semiconductor laser module
- Publication number 20020172252
- Publication date Nov 21, 2002
- Masahiko Namiwaka
- H01 - BASIC ELECTRIC ELEMENTS