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Yoshinori Ohta
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Kamiina, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical level control device, method for controlling same, and lase...
Patent number
7,916,393
Issue date
Mar 29, 2011
Laserfront Technologies, Inc.
Tsuyoshi Nagano
G02 - OPTICS
Information
Patent Grant
Optical level control device, method for controlling same, and lase...
Patent number
7,804,644
Issue date
Sep 28, 2010
Laserfront Technologies, Inc.
Tsuyoshi Nagano
G02 - OPTICS
Information
Patent Grant
Connector provided with cover
Patent number
7,125,269
Issue date
Oct 24, 2006
Mitsumi Electric Co., Ltd.
Yoshinori Ohta
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Method of manufacturing a fiber-type optical coupler with slanting...
Patent number
7,113,674
Issue date
Sep 26, 2006
NEC Corporation
Yoshinori Ohta
G02 - OPTICS
Information
Patent Grant
Optical packet header identifier, optical router incorporating the...
Patent number
7,024,076
Issue date
Apr 4, 2006
Laserfront Technologies, Inc.
Yoshinori Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical packet header identifier, optical router incorporating the...
Patent number
6,892,001
Issue date
May 10, 2005
Laserfront Technologies, Inc.
Yoshinori Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Fiber-type optical coupler with slanting Bragg diffraction gratings...
Patent number
6,870,991
Issue date
Mar 22, 2005
NEC Corporation
Yoshinori Ohta
G02 - OPTICS
Information
Patent Grant
Optical non-reciprocal circuit of waveguide type
Patent number
5,428,695
Issue date
Jun 27, 1995
NEC Corporation
Yoshinori Ohta
G02 - OPTICS
Information
Patent Grant
Probe unit for near-field optical scanning microscope
Patent number
5,294,790
Issue date
Mar 15, 1994
Olympus Optical Co., Ltd.
Yoshinori Ohta
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Optical waveguide apparatus for controlling a signal light travelin...
Patent number
5,133,027
Issue date
Jul 21, 1992
Olympus Optical Co., Ltd.
Jun Funazaki
G02 - OPTICS
Information
Patent Grant
Static induction transistor and manufacturing method of the same
Patent number
4,945,392
Issue date
Jul 31, 1990
Olympus Optical Co., Ltd.
Yoshinori Ohta
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Static induction transistor and manufacturing method of the same
Patent number
4,889,826
Issue date
Dec 26, 1989
Olympus Optical Co., Ltd.
Yoshinori Ohta
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Solid state image pick-up device with a shutter function
Patent number
4,717,945
Issue date
Jan 5, 1988
Olympus Optical Co., Ltd.
Atsushi Yusa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Semiconductor laser apparatus with isolator
Patent number
4,686,678
Issue date
Aug 11, 1987
NEC Corporation
Yoshinori Ohta
G02 - OPTICS
Information
Patent Grant
JFET imager having light sensing inversion layer induced by insulat...
Patent number
4,684,968
Issue date
Aug 4, 1987
Olympus Optical Co., Ltd.
Yoshinori Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Faraday rotator for an optical device
Patent number
4,522,473
Issue date
Jun 11, 1985
Nippon Electric Co., Ltd.
Taketoshi Hibiya
G02 - OPTICS
Information
Patent Grant
Electro-optical light modulators, light wavelength multiplex signal...
Patent number
4,327,971
Issue date
May 4, 1982
Nippon Electric Co., Ltd.
Michikazu Kondo
G02 - OPTICS
Information
Patent Grant
Acoustooptic modulator
Patent number
4,299,449
Issue date
Nov 10, 1981
Nippon Electric Co., Ltd.
Yoshinori Ohta
G02 - OPTICS
Information
Patent Grant
Laser beam facsimile apparatus
Patent number
4,270,149
Issue date
May 26, 1981
Nippon Electric Co., Ltd.
Yoshinori Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL LEVEL CONTROL DEVICE, METHOD FOR CONTROLLING SAME, AND LASE...
Publication number
20090161706
Publication date
Jun 25, 2009
LASERFRONT TECHNOLOGIES, INC.
Tsuyoshi NAGANO
G02 - OPTICS
Information
Patent Application
Receptacle, plug, and connector apparatus
Publication number
20080242149
Publication date
Oct 2, 2008
MITSUMI ELECTRIC CO., LTD.
Takeshi Konno
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical level control device, method for controlling same, and lase...
Publication number
20070070484
Publication date
Mar 29, 2007
LASERFRONT TECHNOLOGIES, INC.
Tsuyoshi Nagano
G02 - OPTICS
Information
Patent Application
Optical packet header identifier, optical router incorporating the...
Publication number
20050163427
Publication date
Jul 28, 2005
LASERFRONT TECHNOLOGIES, INC.
Yoshinori Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Method of manufacturing a fiber-type optical coupler with slanting...
Publication number
20050147349
Publication date
Jul 7, 2005
NEC Corporation
Yoshinori Ohta
G02 - OPTICS
Information
Patent Application
Connector provided with cover
Publication number
20040266264
Publication date
Dec 30, 2004
Yoshinori Ohta
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Optical packet header identifier, optical router incorporating the...
Publication number
20030161636
Publication date
Aug 28, 2003
NEC Corporation
Yoshinori Ohta
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Fiber-type optical coupler, manufacturing method thereof and optica...
Publication number
20010046352
Publication date
Nov 29, 2001
NEC Corporation
Yoshinori Ohta
G02 - OPTICS