Yasuyuki Miyama

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Funabashi-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical waveguide device
- Patent number 6,980,705
- Issue date Dec 27, 2005
- Sumitomo Osaka Cement Co., Ltd.
- Yasuyuki Miyama
- G02 - OPTICS
Information Patent Grant
Optical waveguide type optical modulator and production method ther...
- Patent number 6,956,980
- Issue date Oct 18, 2005
- Sumitomo Osaka Cement Co., Ltd.
- Hirotoshi Nagata
- G02 - OPTICS
Information Patent Grant
Optical waveguide device and method for forming optical waveguide d...
- Patent number 6,806,113
- Issue date Oct 19, 2004
- Sumitomo Osaka Cement Co., Ltd.
- Yasuyuki Miyama
- G02 - OPTICS
Information Patent Grant
Electro-optical element having protective film on top and side surf...
- Patent number 6,583,480
- Issue date Jun 24, 2003
- Sumitomo Osaka Cement Co., Ltd.
- Hirotoshi Nagata
- G02 - OPTICS
Information Patent Grant
Light modulator of waveguide type
- Patent number 6,522,792
- Issue date Feb 18, 2003
- Sumitomo Osaka Cement Co., Ltd.
- Tohru Sugamata
- G02 - OPTICS
Information Patent Grant
Optical modulator with optical waveguide and traveling-wave type el...
- Patent number 5,748,358
- Issue date May 5, 1998
- Sumitomo Osaka Cement Co., Ltd.
- Tohru Sugamata
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical waveguide device
- Publication number 20040067021
- Publication date Apr 8, 2004
- Yasuyuki Miyama
- G02 - OPTICS
Information Patent Application
Optical waveguide type optical modulator and production method ther...
- Publication number 20040033001
- Publication date Feb 19, 2004
- Hirotoshi Nagata
- G02 - OPTICS
Information Patent Application
Optical waveguide device and method for forming optical waveguide d...
- Publication number 20020136478
- Publication date Sep 26, 2002
- Miyama Yasuyuki
- G02 - OPTICS