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Shigeru Tomita
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Mito, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical fiber having holes
Patent number
9,121,995
Issue date
Sep 1, 2015
Fujikura Ltd.
Shoji Tanigawa
G02 - OPTICS
Information
Patent Grant
Optical glass fiber
Patent number
6,004,675
Issue date
Dec 21, 1999
Sumitomo Electric Industries, Ltd.
Nobuhiro Akasaka
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical fiber cable having a grooved spacer formed with one or more...
Patent number
5,638,478
Issue date
Jun 10, 1997
The Furukawa Electric Co., Ltd.
Daisuke Iwakura
G02 - OPTICS
Information
Patent Grant
Light transmitting glass fiber
Patent number
5,422,182
Issue date
Jun 6, 1995
Sumitomo Electric Industries, Ltd.
Kazumasa Oishi
G02 - OPTICS
Information
Patent Grant
Mode field diameter conversion fiber
Patent number
5,381,503
Issue date
Jan 10, 1995
Sumitomo Electric Industries, Ltd.
Hiroo Kanamori
G02 - OPTICS
Information
Patent Grant
Transmission cable termination box, and transmission cable installa...
Patent number
5,332,165
Issue date
Jul 26, 1994
Sumitomo Electric Industries, Ltd.
Hiroaki Sano
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Redundant length treatment mechanism for optical fiber at terminal...
Patent number
5,268,986
Issue date
Dec 7, 1993
Sumitomo Electric Industries, Ltd.
Toshiaki Kakii
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL FIBER
Publication number
20120288247
Publication date
Nov 15, 2012
Nippon Telegraph and Telephone Corporation
Shoji TANIGAWA
G02 - OPTICS
Information
Patent Application
Coated Optical Fiber Identifying Apparatus and Coated Optical Fiber...
Publication number
20110141458
Publication date
Jun 16, 2011
Nippon Telegraph and Telephone Corporation
Takashi Matsui
G02 - OPTICS