Hirokuni Ogawa

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Sakura-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Manufacturing method for optical coupler/splitter and method for ad...
- Patent number 7,046,881
- Issue date May 16, 2006
- Fujikura, Ltd.
- Ken Sakuma
- G02 - OPTICS
Information Patent Grant
Optical switch, optical add-drop module, and optical communication...
- Patent number 7,046,872
- Issue date May 16, 2006
- Fujikura Ltd.
- Ken Sakuma
- G02 - OPTICS
Information Patent Grant
Optical multiplexer/demultiplexer
- Patent number 6,690,852
- Issue date Feb 10, 2004
- Fujikura Ltd.
- Hirokuni Ogawa
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
ALIGNING METHOD AND ALIGNING APPARATUS
- Publication number 20110239438
- Publication date Oct 6, 2011
- FUJIKURA LTD.
- Hirokuni OGAWA
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Optical switch, optical add-drop module, and optical communication...
- Publication number 20030210855
- Publication date Nov 13, 2003
- Ken Sakuma
- G02 - OPTICS
Information Patent Application
Manufacturing method for optical coupler/splitter and method for ad...
- Publication number 20030021536
- Publication date Jan 30, 2003
- Ken Sakuma
- G02 - OPTICS
Information Patent Application
Optical multiplexer/demultiplexer
- Publication number 20020021863
- Publication date Feb 21, 2002
- Hirokuni Ogawa
- G02 - OPTICS