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Hajime Sakata
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Endoscope
Patent number
9,661,993
Issue date
May 30, 2017
Olympus Corporation
Hajime Sakata
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Control method of distributed Bragg reflection semiconductor laser,...
Patent number
7,809,032
Issue date
Oct 5, 2010
Canon Kabushiki Kaisha
Kazunari Fujii
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Control method of distributed Bragg reflection semiconductor laser,...
Patent number
7,512,160
Issue date
Mar 31, 2009
Canon Kabushiki Kaisha
Kazunari Fujii
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Light wavelength converting apparatus, control method of the same,...
Patent number
7,411,992
Issue date
Aug 12, 2008
Canon Kabushiki Kaisha
Yukio Furukawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Control method of distributed Bragg reflection semiconductor laser,...
Patent number
7,313,156
Issue date
Dec 25, 2007
Canon Kabushiki Kaisha
Kazunari Fujii
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical wavelength converting apparatus, and optical wavelength con...
Patent number
7,039,077
Issue date
May 2, 2006
Canon Kabushiki Kaisha
Yukio Furukawa
G02 - OPTICS
Information
Patent Grant
Harmonic generator, method for driving harmonic generator, image-di...
Patent number
6,987,785
Issue date
Jan 17, 2006
Canon Kabushiki Kaisha
Hajime Sakata
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Image display apparatus
Patent number
6,972,737
Issue date
Dec 6, 2005
Canon Kabushiki Kaisha
Yukio Furukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Projection display device
Patent number
6,945,652
Issue date
Sep 20, 2005
Canon Kabushiki Kaisha
Hajime Sakata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Surface optical device apparatus, method of fabricating the same, a...
Patent number
6,932,516
Issue date
Aug 23, 2005
Canon Kabushiki Kaisha
Toshihiko Ouchi
G02 - OPTICS
Information
Patent Grant
Optical wavelength converting apparatus and optical wavelength conv...
Patent number
6,919,985
Issue date
Jul 19, 2005
Canon Kabushiki Kaisha
Yukio Furukawa
G02 - OPTICS
Information
Patent Grant
Optical waveguide, method of fabricating the waveguide, and optical...
Patent number
6,868,214
Issue date
Mar 15, 2005
Canon Kabushiki Kaisha
Hajime Sakata
G02 - OPTICS
Information
Patent Grant
Surface emitting semiconductor laser, and its fabrication method
Patent number
6,639,927
Issue date
Oct 28, 2003
Canon Kabushiki Kaisha
Takahiro Sato
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Surface plasmon resonance sensor apparatus using surface emitting l...
Patent number
6,424,418
Issue date
Jul 23, 2002
Canon Kabushiki Kaisha
Yuji Kawabata
G01 - MEASURING TESTING
Information
Patent Grant
Light deflection device and array thereof
Patent number
6,201,644
Issue date
Mar 13, 2001
Canon Kabushiki Kaisha
Hajime Sakata
G02 - OPTICS
Information
Patent Grant
Light deflection device and array thereof
Patent number
6,154,302
Issue date
Nov 28, 2000
Canon Kabushiki Kaisha
Takayuki Yagi
G02 - OPTICS
Information
Patent Grant
Optical integrated nodes, and optical communication systems and net...
Patent number
6,072,925
Issue date
Jun 6, 2000
Canon Kabushiki Kaisha
Hajime Sakata
G02 - OPTICS
Information
Patent Grant
Optical semiconductor apparatus driving method therefor light sourc...
Patent number
5,878,066
Issue date
Mar 2, 1999
Canon Kabushiki Kaisha
Natsuhiko Mizutani
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Compound semiconductor device and fabrication method of producing t...
Patent number
5,701,325
Issue date
Dec 23, 1997
Canon Kabushiki Kaisha
Toshihiko Ouchi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Oscillation polarization mode selective semiconductor laser, modula...
Patent number
5,648,978
Issue date
Jul 15, 1997
Canon Kabushiki Kaisha
Hajime Sakata
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Display device having a mesomorphic diffraction grating layer adjac...
Patent number
5,473,448
Issue date
Dec 5, 1995
Canon Kabushiki Kaisha
Kazuo Yoshinaga
G02 - OPTICS
Information
Patent Grant
Optical semiconductor apparatus, a method of driving the same and a...
Patent number
5,349,598
Issue date
Sep 20, 1994
Canon Kabushiki Kaisha
Toshihiko Ouchi
G02 - OPTICS
Information
Patent Grant
Optical device used wavelength selective photocoupler
Patent number
5,333,216
Issue date
Jul 26, 1994
Canon Kabushiki Kaisha
Hajime Sakata
G02 - OPTICS
Information
Patent Grant
Diffraction grating type liquid crystal display device in viewfinder
Patent number
5,299,037
Issue date
Mar 29, 1994
Canon Kabushiki Kaisha
Hajime Sakata
G02 - OPTICS
Information
Patent Grant
Integrated type optical node and optical information system using t...
Patent number
5,287,422
Issue date
Feb 15, 1994
Canon Kabushiki Kaisha
Uuichi Handa
G02 - OPTICS
Information
Patent Grant
Multi-wavelength light detecting and/or emitting apparatuses having...
Patent number
5,233,187
Issue date
Aug 3, 1993
Canon Kabushiki Kaisha
Hajime Sakata
G02 - OPTICS
Information
Patent Grant
Integrated type optical node and optical information system using t...
Patent number
5,222,163
Issue date
Jun 22, 1993
Canon Kabushiki Kaisha
Uuichi Handa
G02 - OPTICS
Information
Patent Grant
Optical apparatus using wavelength selective photocoupler
Patent number
5,220,573
Issue date
Jun 15, 1993
Canon Kabushiki Kaisha
Hajime Sakata
G02 - OPTICS
Information
Patent Grant
Semiconductor laser element capable of changing emission wavelength...
Patent number
5,155,736
Issue date
Oct 13, 1992
International Business Machines Corporation
Takeo Ono
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Optical modulation element having two-dimensional phase type diffra...
Patent number
5,148,302
Issue date
Sep 15, 1992
Akihiko Nagano
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
CATHETER
Publication number
20200338305
Publication date
Oct 29, 2020
Kaneka Corporation
Hajime SAKATA
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
ENDOSCOPE
Publication number
20150164304
Publication date
Jun 18, 2015
OLYMPUS MEDICAL SYSTEMS CORP.
Hajime SAKATA
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
ENDOSCOPE
Publication number
20140155696
Publication date
Jun 5, 2014
OLYMPUS MEDICAL SYSTEMS CORP.
Hajime SAKATA
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
ENDOSCOPE
Publication number
20130197309
Publication date
Aug 1, 2013
OLYMPUS MEDICAL SYSTEMS CORP.
Hajime SAKATA
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Application
CONTROL METHOD OF DISTRIBUTED BRAGG REFLECTION SEMICONDUCTOR LASER,...
Publication number
20090213886
Publication date
Aug 27, 2009
Canon Kabushiki Kaisha
Kazunari Fujii
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Control method of distributed Bragg reflection semiconductor laser,...
Publication number
20080002745
Publication date
Jan 3, 2008
Canon Kabushiki Kaisha
Kazunari Fujii
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Image display apparatus
Publication number
20060044297
Publication date
Mar 2, 2006
Canon Kabushiki Kaisha
Yukio Furukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Control method of distributed Bragg reflection semiconductor laser,...
Publication number
20050265419
Publication date
Dec 1, 2005
Canon Kabushiki Kaisha
Kazunari Fujii
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Light wavelength converting apparatus, control method of the same,...
Publication number
20050254531
Publication date
Nov 17, 2005
Canon Kabushiki Kaisha
Yukio Furukawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Harmonic generator, method for driving harmonic generator, image-di...
Publication number
20050226285
Publication date
Oct 13, 2005
Canon Kabushiki Kaisha
Hajime Sakata
G02 - OPTICS
Information
Patent Application
Optical wavelength converting apparatus, and optical wavelength con...
Publication number
20040027648
Publication date
Feb 12, 2004
Canon Kabushiki Kaisha
Yukio Furukawa
G02 - OPTICS
Information
Patent Application
Harmonic generator, method for driving harmonic generator, image-di...
Publication number
20030210716
Publication date
Nov 13, 2003
Canon Kabushiki Kaisha
Hajime Sakata
G02 - OPTICS
Information
Patent Application
Optical wavelength converting apparatus and optical wavelength conv...
Publication number
20030151797
Publication date
Aug 14, 2003
Canon Kabushiki Kaisha
Yukio Furukawa
G02 - OPTICS
Information
Patent Application
Projection display device
Publication number
20030011751
Publication date
Jan 16, 2003
Canon Kabushiki Kaisha
Hajime Sakata
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Image display apparatus
Publication number
20020196377
Publication date
Dec 26, 2002
Canon Kabushiki Kaisha
Yukio Furukawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Surface optical device apparatus, method of fabricating the same, a...
Publication number
20020025122
Publication date
Feb 28, 2002
Toshihiko Ouchi
G02 - OPTICS
Information
Patent Application
SURFACE PLASMON RESONANCE SENSOR APPARATUS USING SURFACE EMITTING L...
Publication number
20010040679
Publication date
Nov 15, 2001
YUJI KAWABATA
G01 - MEASURING TESTING
Information
Patent Application
Surface emitting semiconductor laser, and its fabrication method
Publication number
20010006528
Publication date
Jul 5, 2001
Takahiro Sato
H01 - BASIC ELECTRIC ELEMENTS