Tadahiko Hanada

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Waveguide device
- Patent number 7,106,929
- Issue date Sep 12, 2006
- NEC Corporation
- Tadahiko Hanada
- G02 - OPTICS
Information Patent Grant
Optical circuit element and production method therefor, array-form...
- Patent number 7,076,125
- Issue date Jul 11, 2006
- NEC Corporation
- Hikaru Kouta
- G01 - MEASURING TESTING
Information Patent Grant
Optical coupler
- Patent number 7,020,367
- Issue date Mar 28, 2006
- NEC Corporation
- Kouichi Suzuki
- G02 - OPTICS
Information Patent Grant
Integrated type optical waveguide device
- Patent number 6,876,782
- Issue date Apr 5, 2005
- NEC Corporation
- Toshiyuki Kambe
- G02 - OPTICS
Information Patent Grant
Optical waveguide device to be optically poled, method of manufactu...
- Patent number 6,684,013
- Issue date Jan 27, 2004
- NEC Corporation
- Yuko Seki
- G02 - OPTICS
Information Patent Grant
Optical waveguide fabrication method
- Patent number 6,192,712
- Issue date Feb 27, 2001
- NEC Corporation
- Takashi Saito
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical coupler
- Publication number 20040264863
- Publication date Dec 30, 2004
- Kouichi Suzuki
- G02 - OPTICS
Information Patent Application
Optical circuit element and production method therefor, array-form...
- Publication number 20040131302
- Publication date Jul 8, 2004
- Hikaru Kouta
- G02 - OPTICS
Information Patent Application
Waveguide device
- Publication number 20030169965
- Publication date Sep 11, 2003
- NEC Corporation
- Tadahiko Hanada
- G02 - OPTICS
Information Patent Application
Integrated type optical waveguide device
- Publication number 20030128905
- Publication date Jul 10, 2003
- NEC Corporation
- Toshiyuki Kambe
- G02 - OPTICS
Information Patent Application
Optical waveguide device to be optically poled, method of manufactu...
- Publication number 20010046353
- Publication date Nov 29, 2001
- NEC Corporation
- Yuko Seki
- G02 - OPTICS