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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Method of manufacturing optical fiber
Patent number
6,935,139
Issue date
Aug 30, 2005
Sumitomo Electric Industries
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical fiber producing method
Patent number
6,928,840
Issue date
Aug 16, 2005
Sumitomo Electric Industries, Ltd.
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Drawing method of optical fiber and drawing furnace
Patent number
6,907,757
Issue date
Jun 21, 2005
Sumitomo Electric Industries, Ltd.
Kazuya Kuwahara
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical fiber, method of making optical fiber preform, and method o...
Patent number
6,892,019
Issue date
May 10, 2005
Sumitomo Electric Industries, Ltd.
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Apparatus and method for making optical fiber
Patent number
6,851,282
Issue date
Feb 8, 2005
Sumitomo Electric Industries, Ltd.
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of controlling an upper portion of an optical fiber draw fur...
Patent number
6,810,692
Issue date
Nov 2, 2004
Sumitomo Electric Industries, Ltd.
Toshiki Taru
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical fiber drawing method and drawing furnace
Patent number
6,735,983
Issue date
May 18, 2004
Sumitomo Electric Industries, Ltd.
Toshiki Taru
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical fiber, method of making optical fiber preform, and method o...
Patent number
6,681,072
Issue date
Jan 20, 2004
Sumitomo Electric Industries Co., Ltd.
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical fiber drawing furnace having adjustable partitions
Patent number
6,668,592
Issue date
Dec 30, 2003
Sumitomo Electric Industries, Ltd.
Toshiki Taru
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical fiber, method of making the same, and optical transmission...
Patent number
6,567,597
Issue date
May 20, 2003
Sumitomo Electric Industries, Ltd.
Eisuke Sasaoka
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method and apparatus for fabricating coated optical fiber, and coat...
Patent number
6,519,404
Issue date
Feb 11, 2003
Sumitomo Electric Industries, Ltd.
Motohide Yoshida
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Manufacturing method of an optical fiber
Patent number
6,502,428
Issue date
Jan 7, 2003
Sumitomo Electric Industries, Ltd.
Masashi Onishi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Multiple fiber optical cable and method of manufacturing multiple f...
Patent number
6,473,548
Issue date
Oct 29, 2002
Sumitomo Electric Industries, Ltd.
Katsuya Nagayama
G02 - OPTICS
Information
Patent Grant
Method and apparatus for curing ultraviolet-curing resin
Patent number
6,399,158
Issue date
Jun 4, 2002
Sumitomo Electric Industries, Ltd.
Kazuya Kuwahara
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical fiber and method of making the same
Patent number
6,400,878
Issue date
Jun 4, 2002
Sumitomo Electric Industries, Ltd.
Katsuya Nagayama
G02 - OPTICS
Information
Patent Grant
Method and furnace for drawing optical fibers
Patent number
5,637,130
Issue date
Jun 10, 1997
Sumitomo Electric Industries, Inc.
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method and apparatus for sucking an optical fiber
Patent number
5,472,128
Issue date
Dec 5, 1995
Sumitomo Electric Industries, Ltd.
Katsuya Nagayama
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Slitted winding wheel for optical fiber
Patent number
5,441,215
Issue date
Aug 15, 1995
Sumitomo Electric Industries, Ltd.
Katsuya Nagayama
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Apparatus for the production of hermetically coated optical fiber
Patent number
5,352,261
Issue date
Oct 4, 1994
Sumitomo Electric Industries, Ltd.
Haruhiko Aikawa
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method for manufacturing a hermetically coated optical fiber
Patent number
5,348,564
Issue date
Sep 20, 1994
Sumitomo Electric Industries, Ltd.
Haruhiko Aikawa
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method for screening optical fiber and apparatus for carrying out m...
Patent number
5,322,228
Issue date
Jun 21, 1994
Sumitomo Electric Industries, Inc.
Katsuya Nagayama
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Method for producing hermetic coated optical fiber
Patent number
5,281,247
Issue date
Jan 25, 1994
Sumitomo Electric Industries, Ltd.
Haruhiko Aikawa
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Apparatus for producing hermetic coated optical fiber
Patent number
5,194,080
Issue date
Mar 16, 1993
Sumitomo Electric Industries, Ltd.
Haruhiko Aikawa
C03 - GLASS MINERAL OR SLAG WOOL
Patents Applications
last 30 patents
Information
Patent Application
Optical fiber making apparatus and method
Publication number
20060101861
Publication date
May 18, 2006
Sumitomo Electric Industries, Ltd.
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Optical fiber and a method for manufacturing same
Publication number
20050259932
Publication date
Nov 24, 2005
Katsuya Nagayama
G02 - OPTICS
Information
Patent Application
Optical fiber, method of making optical fiber preform, and method o...
Publication number
20040151455
Publication date
Aug 5, 2004
Sumitomo Electric Industries, Ltd.
Katsuya Nagayama
G02 - OPTICS
Information
Patent Application
Method of measuring characteristics of optical fiber and method of...
Publication number
20040028372
Publication date
Feb 12, 2004
SUMITOMO ELECTRIC INDUSTRIES, LTD.
Katsuya Nagayama
G02 - OPTICS
Information
Patent Application
Optical fiber manufacturing method and apparatus
Publication number
20040003628
Publication date
Jan 8, 2004
Takayuki Shimazu
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Furnace and method for optical fiber wire driwing
Publication number
20030205068
Publication date
Nov 6, 2003
Sumitomo Electric Industries, Ltd.
Toshiki Taru
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Method and apparatus for manufacturing optical fiber
Publication number
20030010066
Publication date
Jan 16, 2003
Eisuke Sasaoka
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Method of manufacturing optical fiber
Publication number
20020194881
Publication date
Dec 26, 2002
SUMITOMO ELECTRIC INDUSTRIES, LTD.
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Drawing method of optical fiber and drawing furnace
Publication number
20020174692
Publication date
Nov 28, 2002
Kazuya Kuwahara
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Apparatus and method for making optical fiber
Publication number
20020059816
Publication date
May 23, 2002
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Optical fiber and method of making the same
Publication number
20020044753
Publication date
Apr 18, 2002
SUMITOMO ELECTRIC INDUSTRIES, LTD.
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Optical fiber, method of making optical fiber preform, and method o...
Publication number
20020031320
Publication date
Mar 14, 2002
SUMITOMO ELECTRIC INDUSTRIES, LTD.
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Optical fiber, method of making the same, and optical transmission...
Publication number
20010046358
Publication date
Nov 29, 2001
SUMITOMO ELECTRIC INDUSTRIES, LTD.
Eisuke Sasaoka
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Method of making optical fiber
Publication number
20010010162
Publication date
Aug 2, 2001
SUMITOMO ELECTRIC INDUSTRIES, LTD.
Kazuya Kuwahara
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Optical fiber making method and optical fiber making apparatus
Publication number
20010003911
Publication date
Jun 21, 2001
SUMITOMO ELECTRIC INDUSTRIES, LTD.
Kaoru Okuno
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Application
Multiple fiber optical cable and method of manufacturing the same
Publication number
20010002943
Publication date
Jun 7, 2001
SUMITOMO ELECTRIC INDUSTRIES, LTD.
Katsuya Nagayama
C03 - GLASS MINERAL OR SLAG WOOL