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Kiyoshi Terai
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Tokyo, JP
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last 30 patents
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Patent Grant
Polarizing separating device and optical isolator employing the same
Patent number
5,076,675
Issue date
Dec 31, 1991
Fujitsu Limited
Satoshi Kusaka
G02 - OPTICS
Information
Patent Grant
Optical fiber switching with spherical lens and method of making same
Patent number
5,048,912
Issue date
Sep 17, 1991
Fujitsu Limited
Tatsuro Kunikane
G02 - OPTICS
Information
Patent Grant
Optical branching filter
Patent number
4,824,200
Issue date
Apr 25, 1989
Fujitsu Limited
Hideki Isono
G02 - OPTICS
Information
Patent Grant
Optical switching device
Patent number
4,189,206
Issue date
Feb 19, 1980
Fujitsu Limited
Kiyoshi Terai
G02 - OPTICS