Hidetoshi Takasugi

Follow

Person

Saitama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical connector apparatus
- Patent number 5,590,227
- Issue date Dec 31, 1996
- Sumitomo Electric Industries, Ltd.
- Keiji Osaka
- G02 - OPTICS
Information Patent Grant
Optical connector connecting apparatus and optical connector connec...
- Patent number 5,418,872
- Issue date May 23, 1995
- Sumitomo Electric Industries, Ltd.
- Keiji Osaka
- G02 - OPTICS
Information Patent Grant
Device and a method for distinguishing faults employed in an optica...
- Patent number 5,177,354
- Issue date Jan 5, 1993
- Nippon Telegraph & Telephone Corporation
- Nobuo Tomita
- G02 - OPTICS