Shigeo Matsushita

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Semiconductor diode laser array
- Patent number 4,318,058
- Issue date Mar 2, 1982
- Nippon Electric Co., Ltd.
- Ikuo Mito
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor laser device having plural active regions
- Patent number 4,318,059
- Issue date Mar 2, 1982
- Nippon Electric Co., Ltd.
- Hi-Roy-Oshi Lang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light switch
- Patent number 4,265,513
- Issue date May 5, 1981
- Nippon Electric Co., Ltd.
- Shigeo Matsushita
- G02 - OPTICS
Information Patent Grant
Method of producing dielectric diffraction gratings or dielectric m...
- Patent number 4,243,398
- Issue date Jan 6, 1981
- Nippon Electric Co., Ltd.
- Hidenori Nomura
- G02 - OPTICS
Information Patent Grant
Light coupling and branching device using light focusing transmissi...
- Patent number 4,213,677
- Issue date Jul 22, 1980
- Nippon Selfoc Company, Limited
- Shigetoki Sugimoto
- G02 - OPTICS