Tsunefumi TANAKA

Person

Utsunomiya-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Image pickup apparatus and lens apparatus
- Patent number 8,988,538
- Issue date Mar 24, 2015
- Canon Kabushiki Kaisha
- Chiaki Inoue
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image processing apparatus and image pickup apparatus using same
- Patent number 8,659,672
- Issue date Feb 25, 2014
- Canon Kabushiki Kaisha
- Koshi Hatakeyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image processing apparatus, and image pickup apparatus using same
- Patent number 8,565,524
- Issue date Oct 22, 2013
- Canon Kabushiki Kaisha
- Koshi Hatakeyama
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Zoom lens and image pickup device including the same
- Patent number 8,520,313
- Issue date Aug 27, 2013
- Canon Kabushiki Kaisha
- Ken Wada
- G02 - OPTICS
Information Patent Grant
Zoom lens
- Patent number 7,961,404
- Issue date Jun 14, 2011
- Canon Kabushiki Kaisha
- Toyokatsu Fujisaki
- G02 - OPTICS
Information Patent Grant
Zoom lens
- Patent number 7,876,507
- Issue date Jan 25, 2011
- Canon Kabushiki Kaisha
- Toyokatsu Fujisaki
- G02 - OPTICS
Information Patent Grant
Zoom lens
- Patent number 7,457,045
- Issue date Nov 25, 2008
- Canon Kabushiki Kaisha
- Toyokatsu Fujisaki
- G02 - OPTICS
Information Patent Grant
Projection optical system and a projection type image display appar...
- Patent number 7,258,452
- Issue date Aug 21, 2007
- Canon Kabushiki Kaisha
- Koshi Hatakeyama
- G02 - OPTICS
Information Patent Grant
Optical element and optical apparatus
- Patent number 6,842,280
- Issue date Jan 11, 2005
- Canon Kabushiki Kaisha
- Keisuke Araki
- G02 - OPTICS
Information Patent Grant
Image pickup apparatus having a wave synthesizer for incident and r...
- Patent number 6,812,447
- Issue date Nov 2, 2004
- Canon Kabushiki Kaisha
- Hiroaki Hoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reflecting type optical system
- Patent number 6,785,060
- Issue date Aug 31, 2004
- Canon Kabushiki Kaisha
- Kenichi Kimura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reflecting type of zoom lens
- Patent number 6,639,729
- Issue date Oct 28, 2003
- Canon Kabushiki Kaisha
- Tsunefumi Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Reflecting type of zoom lens
- Patent number 6,636,360
- Issue date Oct 21, 2003
- Canon Kabushiki Kaisha
- Tsunefumi Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Image display system
- Patent number 6,507,359
- Issue date Jan 14, 2003
- Canon Kabushiki Kaisha
- Tomotaka Muramoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical apparatus
- Patent number 6,426,841
- Issue date Jul 30, 2002
- Canon Kabushiki Kaisha
- Keisuke Araki
- G02 - OPTICS
Information Patent Grant
Reflecting type optical system
- Patent number 6,366,411
- Issue date Apr 2, 2002
- Canon Kabushiki Kaisha
- Kenichi Kimura
- G02 - OPTICS
Information Patent Grant
Optical element and optical system having the same
- Patent number 6,351,333
- Issue date Feb 26, 2002
- Canon Kabushiki Kaisha
- Keisuke Araki
- G02 - OPTICS
Information Patent Grant
Optical apparatus
- Patent number 6,301,064
- Issue date Oct 9, 2001
- Canon Kabushiki Kaisha
- Keisuke Araki
- G02 - OPTICS
Information Patent Grant
Reflecting type of zoom lens
- Patent number 6,292,309
- Issue date Sep 18, 2001
- Canon Kabushiki Kaisha
- Makoto Sekita
- G02 - OPTICS
Information Patent Grant
Optical element, optical device provided therewith, and method for...
- Patent number 6,215,596
- Issue date Apr 10, 2001
- Canon Kabushiki Kaisha
- Keisuke Araki
- G02 - OPTICS
Information Patent Grant
Automatic focussing system
- Patent number 6,208,811
- Issue date Mar 27, 2001
- Canon Kabuhsiki Kaisha
- Tsunefumi Tanaka
- G02 - OPTICS
Information Patent Grant
Image displaying apparatus having magnification-changing system
- Patent number 6,188,521
- Issue date Feb 13, 2001
- Canon Kabushiki Kaisha
- Tsunefumi Tanaka
- G02 - OPTICS
Information Patent Grant
Reflecting type optical system
- Patent number 6,166,866
- Issue date Dec 26, 2000
- Canon Kabushiki Kaisha
- Kenichi Kimura
- G02 - OPTICS
Information Patent Grant
Zoom optical system and image pickup apparatus
- Patent number 6,124,986
- Issue date Sep 26, 2000
- Canon Kabushiki Kaisha
- Makoto Sekita
- G02 - OPTICS
Information Patent Grant
Image displaying apparatus
- Patent number 6,023,253
- Issue date Feb 8, 2000
- Canon Kabushiki Kaisha
- Naosato Taniguchi
- G02 - OPTICS
Information Patent Grant
Reflecting type of zoom lens
- Patent number 6,021,004
- Issue date Feb 1, 2000
- Canon Kabushiki Kaisha
- Makoto Sekita
- G02 - OPTICS
Information Patent Grant
Image pickup apparatus with vibration compensation
- Patent number 5,905,848
- Issue date May 18, 1999
- Canon Kabushiki Kaisha
- Kotaro Yano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical apparatus
- Patent number 5,905,597
- Issue date May 18, 1999
- Canon Kabushiki Kaisha
- Satoru Mizouchi
- G02 - OPTICS
Information Patent Grant
Image displaying apparatus
- Patent number 5,844,713
- Issue date Dec 1, 1998
- Canon Kabushiki Kaisha
- Norihiro Nanba
- G02 - OPTICS
Information Patent Grant
Image taking apparatus
- Patent number 5,757,423
- Issue date May 26, 1998
- Canon Kabushiki Kaisha
- Tsunefumi Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
IMAGE PICKUP APPARATUS AND LENS APPARATUS
- Publication number 20140002688
- Publication date Jan 2, 2014
- Chiaki INOUE
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE PROCESSING APPARATUS, AND IMAGE PICKUP APPARATUS USING SAME
- Publication number 20120141027
- Publication date Jun 7, 2012
- Canon Kabushiki Kaisha
- Koshi Hatakeyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
IMAGE PROCESSING APPARATUS AND IMAGE PICKUP APPARATUS USING SAME
- Publication number 20110149103
- Publication date Jun 23, 2011
- Canon Kabushiki Kaisha
- Koshi Hatakeyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
ZOOM LENS AND IMAGE PICKUP DEVICE INCLUDING THE SAME
- Publication number 20110090571
- Publication date Apr 21, 2011
- Canon Kabushiki Kaisha
- Ken Wada
- G02 - OPTICS
Information Patent Application
ZOOM LENS
- Publication number 20100277812
- Publication date Nov 4, 2010
- Canon Kabushiki Kaisha
- Toyokatsu Fujisaki
- G02 - OPTICS
Information Patent Application
ZOOM LENS
- Publication number 20090303611
- Publication date Dec 10, 2009
- Canon Kabushiki Kaisha
- Toyokatsu Fujisaki
- G02 - OPTICS
Information Patent Application
ZOOM LENS
- Publication number 20080186588
- Publication date Aug 7, 2008
- Canon Kabushiki Kaisha
- Toyokatsu Fujisaki
- G02 - OPTICS
Information Patent Application
Projection optical system and a projection type image display appar...
- Publication number 20050078281
- Publication date Apr 14, 2005
- Koshi Hatakeyama
- G02 - OPTICS
Information Patent Application
Optical element and optical apparatus
- Publication number 20040150879
- Publication date Aug 5, 2004
- Canon Kabushiki Kaisha
- Keisuke Araki
- G02 - OPTICS
Information Patent Application
Reflecting type of zoom lens
- Publication number 20020149854
- Publication date Oct 17, 2002
- Tsunefumi Tanaka
- G02 - OPTICS
Information Patent Application
Reflecting type optical system
- Publication number 20020105734
- Publication date Aug 8, 2002
- Kenichi Kimura
- G02 - OPTICS
Information Patent Application
Image pickup apparatus
- Publication number 20020033441
- Publication date Mar 21, 2002
- Hiroaki Hoshi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
OPTICAL ELEMENT AND OPTICAL SYSTEM HAVING THE SAME
- Publication number 20010013974
- Publication date Aug 16, 2001
- KEISUKE ARAKI
- G02 - OPTICS

Tsunefumi TANAKA

Person

Patents Grantslast 30 patents

Image pickup apparatus and lens apparatus

Image processing apparatus and image pickup apparatus using same

Image processing apparatus, and image pickup apparatus using same

Zoom lens and image pickup device including the same

Zoom lens

Zoom lens

Zoom lens

Projection optical system and a projection type image display appar...

Optical element and optical apparatus

Image pickup apparatus having a wave synthesizer for incident and r...

Reflecting type optical system

Reflecting type of zoom lens

Reflecting type of zoom lens

Image display system

Optical apparatus

Reflecting type optical system

Optical element and optical system having the same

Optical apparatus

Reflecting type of zoom lens

Optical element, optical device provided therewith, and method for...

Automatic focussing system

Image displaying apparatus having magnification-changing system

Reflecting type optical system

Zoom optical system and image pickup apparatus

Image displaying apparatus

Reflecting type of zoom lens

Image pickup apparatus with vibration compensation

Optical apparatus

Image displaying apparatus

Image taking apparatus

Patents Applicationslast 30 patents

IMAGE PICKUP APPARATUS AND LENS APPARATUS

IMAGE PROCESSING APPARATUS, AND IMAGE PICKUP APPARATUS USING SAME

IMAGE PROCESSING APPARATUS AND IMAGE PICKUP APPARATUS USING SAME

ZOOM LENS AND IMAGE PICKUP DEVICE INCLUDING THE SAME

ZOOM LENS

ZOOM LENS

ZOOM LENS

Projection optical system and a projection type image display appar...

Optical element and optical apparatus

Reflecting type of zoom lens

Reflecting type optical system

Image pickup apparatus

OPTICAL ELEMENT AND OPTICAL SYSTEM HAVING THE SAME