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Keisuke Hirai
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Image pickup apparatus including focus operating apparatus and focu...
Patent number
9,529,245
Issue date
Dec 27, 2016
Canon Kabushiki Kaisha
Keisuke Hirai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image pickup apparatus
Patent number
8,861,948
Issue date
Oct 14, 2014
Canon Kabushiki Kaisha
Takayuki Kikuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Image pickup system and lens apparatus
Patent number
8,436,933
Issue date
May 7, 2013
Canon Kabushiki Kaisha
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Television camera system and television lens apparatus
Patent number
8,289,442
Issue date
Oct 16, 2012
Canon Kabushiki Kaisha
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Auto-focusing optical apparatus with focus detection area setting c...
Patent number
8,054,366
Issue date
Nov 8, 2011
Canon Kabushiki Kaisha
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Method and apparatus for controlling lens position
Patent number
8,035,724
Issue date
Oct 11, 2011
Canon Kabushiki Kaisha
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Lens apparatus and image-taking apparatus including drive range lim...
Patent number
7,808,547
Issue date
Oct 5, 2010
Canon Kabushiki Kaisha
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Auto-focusing optical apparatus with focus detection area setting c...
Patent number
7,417,683
Issue date
Aug 26, 2008
Canon Kabushiki Kaisha
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Lens device and photographing apparatus including the same
Patent number
7,265,914
Issue date
Sep 4, 2007
Canon Kabushiki Kaisha
Keisuke Hirai
G02 - OPTICS
Information
Patent Grant
Camera with adjustable auto-focus detection area
Patent number
7,262,803
Issue date
Aug 28, 2007
Canon Kabushiki Kaisha
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Lens device having a controller for controlling optical elements an...
Patent number
7,218,849
Issue date
May 15, 2007
Canon Kabushiki Kaisha
Keisuke Hirai
G02 - OPTICS
Information
Patent Grant
Roof system utilizing a solar cell
Patent number
5,706,617
Issue date
Jan 13, 1998
Hirai Engineering Corporation
Takashi Hirai
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Roof system utilizing a solar cell
Patent number
5,497,587
Issue date
Mar 12, 1996
Hirai Engineering Corporation
Takashi Hirai
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Roof apparatus
Patent number
5,367,843
Issue date
Nov 29, 1994
Hirai Engineering Corporation
Takashi Hirai
F24 - HEATING RANGES VENTILATING
Information
Patent Grant
Negative-electrification finely-divided toner in use for electropho...
Patent number
4,737,431
Issue date
Apr 12, 1988
Faco Corporation Ltd.
Keisuke Hirai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
IMAGE PICKUP APPARATUS
Publication number
20130188092
Publication date
Jul 25, 2013
Canon Kabushiki Kaisha
Takayuki Kikuchi
G02 - OPTICS
Information
Patent Application
IMAGE PICKUP APPARATUS
Publication number
20110293255
Publication date
Dec 1, 2011
Canon Kabushiki Kaisha
Takayuki Kikuchi
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
IMAGE PICKUP APPARATUS INCLUDING FOCUS OPERATING APPARATUS AND FOCU...
Publication number
20110158627
Publication date
Jun 30, 2011
Canon Kabushiki Kaisha
Keisuke Hirai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE PICKUP SYSTEM AND LENS APPARATUS
Publication number
20110032411
Publication date
Feb 10, 2011
Canon Kabushiki Kaisha
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TELEVISION CAMERA SYSTEM AND TELEVISION LENS APPARATUS
Publication number
20100231778
Publication date
Sep 16, 2010
Canon Kabushiki Kaisha
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
AUTO-FOCUSING OPTICAL APPARATUS WITH FOCUS DETECTION AREA SETTING C...
Publication number
20090028540
Publication date
Jan 29, 2009
Canon Kabushiki Kaisha
Keisuke HIRAI
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
METHOD AND APPARATUS FOR CONTROLLING LENS POSITION
Publication number
20080084495
Publication date
Apr 10, 2008
Canon Kabushiki Kaisha
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Lens device and photographing apparatus including the same
Publication number
20050219710
Publication date
Oct 6, 2005
Keisuke Hirai
G02 - OPTICS
Information
Patent Application
Lens device and photographing apparatus including the same
Publication number
20050220449
Publication date
Oct 6, 2005
Keisuke Hirai
G02 - OPTICS
Information
Patent Application
Lens apparatus and image-taking apparatus
Publication number
20040246365
Publication date
Dec 9, 2004
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical apparatus
Publication number
20040189857
Publication date
Sep 30, 2004
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Optical apparatus
Publication number
20040012709
Publication date
Jan 22, 2004
Keisuke Hirai
H04 - ELECTRIC COMMUNICATION TECHNIQUE