Membership
Tour
Register
Log in
Hiroto Yasui
Follow
Person
Tochigi, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Optical system and image pickup apparatus including the same
Patent number
10,746,977
Issue date
Aug 18, 2020
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Optical system and image pickup apparatus including the same
Patent number
10,379,272
Issue date
Aug 13, 2019
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Optical system and optical apparatus with diffractive optical element
Patent number
10,082,643
Issue date
Sep 25, 2018
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Optical system including diffractive optical element and optical ap...
Patent number
9,164,291
Issue date
Oct 20, 2015
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Optical system including diffractive grating and optical apparatus
Patent number
8,792,168
Issue date
Jul 29, 2014
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Optical element and optical system including the same
Patent number
8,355,205
Issue date
Jan 15, 2013
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Optical system and optical apparatus using the same
Patent number
8,064,145
Issue date
Nov 22, 2011
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Contacting two-layer diffractive optical element
Patent number
7,710,651
Issue date
May 4, 2010
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Image-pickup optical system
Patent number
7,253,973
Issue date
Aug 7, 2007
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Zoom lens system and image pickup apparatus including the same
Patent number
7,221,519
Issue date
May 22, 2007
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Optical system
Patent number
7,151,636
Issue date
Dec 19, 2006
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Zoom lens system, image projecting and image pick-up devices using...
Patent number
6,741,398
Issue date
May 25, 2004
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Grant
Zoom lens system and projection apparatus using the same
Patent number
6,639,737
Issue date
Oct 28, 2003
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS INCLUDING THE SAME
Publication number
20180373004
Publication date
Dec 27, 2018
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
OPTICAL SYSTEM AND IMAGE PICKUP APPARATUS INCLUDING THE SAME
Publication number
20180259690
Publication date
Sep 13, 2018
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
OPTICAL SYSTEM AND OPTICAL APPARATUS WITH DIFFRACTIVE OPTICAL ELEMENT
Publication number
20170168269
Publication date
Jun 15, 2017
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
OPTICAL SYSTEM INCLUDING DIFFRACTIVE OPTICAL ELEMENT AND OPTICAL AP...
Publication number
20150002939
Publication date
Jan 1, 2015
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
OPTICAL SYSTEM INCLUDING DIFFRACTIVE GRATING AND OPTICAL APPARATUS
Publication number
20120081790
Publication date
Apr 5, 2012
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
OPTICAL ELEMENT AND OPTICAL SYSTEM INCLUDING THE SAME
Publication number
20100321782
Publication date
Dec 23, 2010
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
OPTICAL SYSTEM AND OPTICAL APPARATUS USING THE SAME
Publication number
20090201585
Publication date
Aug 13, 2009
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
DIFFRACTIVE OPTICAL ELEMENT, OPTICAL SYSTEM AND OPTICAL APPARATUS
Publication number
20080231956
Publication date
Sep 25, 2008
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
IMAGE-PICKUP OPTICAL SYSTEM
Publication number
20070091467
Publication date
Apr 26, 2007
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
Zoom lens system and image pickup apparatus including the same
Publication number
20060279851
Publication date
Dec 14, 2006
Canon Kabushiki Kaisha
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
Optical system
Publication number
20050243436
Publication date
Nov 3, 2005
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
Zoom lens system and projection apparatus using the same
Publication number
20020176058
Publication date
Nov 28, 2002
Hiroto Yasui
G02 - OPTICS
Information
Patent Application
Zoom lens system, image projecting and image pick-up devices using...
Publication number
20020131184
Publication date
Sep 19, 2002
Hiroto Yasui
G02 - OPTICS