Tunetoshi Saito

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical waveguide circuit device
- Patent number 6,829,418
- Issue date Dec 7, 2004
- The Furukawa Electric Co., Ltd.
- Kazuhisa Kashihara
- G02 - OPTICS
Information Patent Grant
Arrayed waveguide grating type optical multiplexer/demultiplexer
- Patent number 6,668,116
- Issue date Dec 23, 2003
- The Furukawa Electric Co., Ltd.
- Kazuhisa Kashihara
- G02 - OPTICS
Information Patent Grant
Optical waveguide circuit module
- Patent number 6,591,044
- Issue date Jul 8, 2003
- The Furukawa Electric Co., Ltd.
- Kazuhisa Kashihara
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical waveguide circuit module
- Publication number 20020064346
- Publication date May 30, 2002
- The Furukawa Electric CO., LTD
- Kazuhisa Kashihara
- G02 - OPTICS
Information Patent Application
Optical waveguide circuit device
- Publication number 20020034361
- Publication date Mar 21, 2002
- The Furukawa Electric CO., LTD
- Kazuhisa Kashihara
- G02 - OPTICS
Information Patent Application
Arrayed waveguide grating type optical multiplexer/demultiplexer
- Publication number 20020025116
- Publication date Feb 28, 2002
- The Furukawa Electric CO., LTD
- Kazuhisa Kashihara
- G02 - OPTICS