Jiro Utsunomiya

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Composite unit of optical semiconductor device and supporting subst...
- Patent number 6,087,194
- Issue date Jul 11, 2000
- Oki Electric Industry Co., Ltd.
- Hisao Matsukura
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Compact optical switching module including thin-film heaters and tr...
- Patent number 5,513,285
- Issue date Apr 30, 1996
- Oki Electric Industry Co. Ltd.
- Toshiyuki Kawashima
- G02 - OPTICS