Takanori Sawai

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
System of detecting troubles of an optical communication line
- Patent number 5,539,558
- Issue date Jul 23, 1996
- Sumitomo Electric Industries, Ltd.
- Ryugen Yonemura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical module
- Patent number 5,233,676
- Issue date Aug 3, 1993
- Sumitomo Electric Industries, Ltd.
- Ryugen Yonemura
- G02 - OPTICS
Information Patent Grant
Optical fiber connector with housing assembly for an assuring compl...
- Patent number 5,224,186
- Issue date Jun 29, 1993
- Sumitomo Electric Industries, Ltd.
- Koji Kishimoto
- G02 - OPTICS