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Terutoshi Kanamori
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Mito, JP
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Patents Grants
last 30 patents
Information
Patent Grant
ASE light source, optical amplifier and laser oscillator
Patent number
6,912,083
Issue date
Jun 28, 2005
NTT Electronics Corporation
Yasutake Ohishi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical fiber splicing structure
Patent number
6,417,963
Issue date
Jul 9, 2002
Nippon Telegraph and Telephone Corporation
Yasutake Ohishi
G02 - OPTICS
Information
Patent Grant
Tellurite glass, optical amplifier, and light source
Patent number
6,356,387
Issue date
Mar 12, 2002
Nippon Telegraph and Telephone Corporation
Yasutake Ohishi
G02 - OPTICS
Information
Patent Grant
Lasers, optical amplifiers, and amplification methods
Patent number
6,278,719
Issue date
Aug 21, 2001
Nippon Telegraph and Telephone Corporation
Yasutake Ohishi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Tellurite glass, optical amplifier, and light source
Patent number
6,266,181
Issue date
Jul 24, 2001
Nippon Telegraph and Telephone Corporation
Yasutake Ohishi
G02 - OPTICS
Information
Patent Grant
Optical fiber amplifier and optical amplification method
Patent number
6,236,496
Issue date
May 22, 2001
Nippon Telegraph and Telephone Corporation
Makoto Yamada
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Lasers, optical amplifiers, and amplification methods
Patent number
6,205,164
Issue date
Mar 20, 2001
Nippon Telegraph and Telephone Corporation
Yasutake Ohishi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Fluoride glass fiber
Patent number
5,774,620
Issue date
Jun 30, 1998
Nippon Telegraph & Telephone Corporation
Yoshiki Nishida
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical fibers for optical amplifiers
Patent number
5,668,659
Issue date
Sep 16, 1997
Nippon Telegraph & Telephone Corporation
Tadashi Sakamoto
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical fiber for optical amplifier
Patent number
5,486,947
Issue date
Jan 23, 1996
Nippon Telegraph & Telephone Corporation
Yasutake Ohishi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Optical fiber for optical amplifier
Patent number
5,351,335
Issue date
Sep 27, 1994
Nippon Telegraph & Telephone Corporation
Yasutake Ohishi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method of making fluoride glass using barium .beta.-diketones
Patent number
5,145,508
Issue date
Sep 8, 1992
Nippon Telegraph & Telephone Corporation
Kazuo Fujiura
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Process for the preparation of fluoride glass and process for the p...
Patent number
5,071,460
Issue date
Dec 10, 1991
Nippon Telegraph & Telephone Corporation
Kazuo Fujiura
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Glass for infrared ray-transmitting optical fibers and optical fibe...
Patent number
4,380,588
Issue date
Apr 19, 1983
Nippon Telegraph & Telephone Public Corporation
Seiko Mitachi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Glass for optical fiber
Patent number
4,346,176
Issue date
Aug 24, 1982
Nippon Telegraph and Telephone Public Corp.
Terutoshi Kanamori
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Method for manufacturing glass fibers from an infrared ray-transmit...
Patent number
4,343,638
Issue date
Aug 10, 1982
Nippon Telegraph & Telephone Public Corporation
Seiko Mitachi
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Glass for optical fibers
Patent number
4,308,066
Issue date
Dec 29, 1981
Nippon Telegraph & Telephone Public Corporation
Seiko Mitachi
C03 - GLASS MINERAL OR SLAG WOOL
Patents Applications
last 30 patents
Information
Patent Application
ASE light source, optical amplifier and laser oscillator
Publication number
20040184820
Publication date
Sep 23, 2004
Yasutake Ohishi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
OPTICAL FIBER SPLICING STRUCTURE
Publication number
20020080474
Publication date
Jun 27, 2002
Nippon Telegraph and Telephone Corporation
Yasutake Ohishi
C03 - GLASS MINERAL OR SLAG WOOL