Youichi Iwasaki

Person

Utsunomiya-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Optical apparatus
- Patent number 7,710,661
- Issue date May 4, 2010
- Canon Kabushiki Kaisha
- Youichi Iwasaki
- G02 - OPTICS
Information Patent Grant
Optical apparatus including diaphragm device
- Patent number 7,611,296
- Issue date Nov 3, 2009
- Canon Kabushiki Kaisha
- Youichi Iwasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Lens barrel and optical apparatus
- Patent number 7,551,369
- Issue date Jun 23, 2009
- Canon Kabushiki Kaisha
- Chifuyu Tomita
- G02 - OPTICS
Information Patent Grant
Quantity-of-light adjusting device and optical apparatus having the...
- Patent number 6,467,975
- Issue date Oct 22, 2002
- Canon Kabushiki Kaisha
- Masahiko Tsuzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Quantity-of-light adjusting device and optical apparatus having the...
- Patent number 6,350,068
- Issue date Feb 26, 2002
- Canon Kabushiki Kaisha
- Masahiko Tsuzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Quantity-of-light adjusting device using base and blade apertures f...
- Patent number 6,086,267
- Issue date Jul 11, 2000
- Canon Kabushiki Kaisha
- Masahiko Tsuzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image stabilizing device
- Patent number 5,825,545
- Issue date Oct 20, 1998
- Canon Kabushiki Kaisha
- Yoshiki Kino
- G02 - OPTICS
Information Patent Grant
Focus detecting system
- Patent number 5,446,494
- Issue date Aug 29, 1995
- Canon Kabushiki Kaisha
- Kouichi Ueda
- G02 - OPTICS
Information Patent Grant
Automatic follow-up focus detecting device and automatic follow-up...
- Patent number 5,204,749
- Issue date Apr 20, 1993
- Canon Kabushiki Kaisha
- Masamichi Toyama
- G01 - MEASURING TESTING
Information Patent Grant
Optical instrument
- Patent number 5,173,807
- Issue date Dec 22, 1992
- Canon Kabushiki Kaisha
- Naoya Kaneda
- G02 - OPTICS
Information Patent Grant
Light emitter and optical system for a distance measuring device
- Patent number 5,109,161
- Issue date Apr 28, 1992
- Canon Kabushiki Kaisha
- Akihisa Horiuchi
- G01 - MEASURING TESTING
Information Patent Grant
Active external distance measuring system having an optical device...
- Patent number 5,087,935
- Issue date Feb 11, 1992
- Canon Kabushiki Kaisha
- Naoya Kaneda
- G01 - MEASURING TESTING
Information Patent Grant
Automatic object image follow-up device
- Patent number 5,031,049
- Issue date Jul 9, 1991
- Canon Kabushiki Kaisha
- Masamichi Toyama
- G01 - MEASURING TESTING
Information Patent Grant
Distance detection apparatus
- Patent number 4,758,082
- Issue date Jul 19, 1988
- Canon Kabushiki Kaisha
- Susumu Kozuki
- G02 - OPTICS
Information Patent Grant
Automatic focusing device
- Patent number 4,623,237
- Issue date Nov 18, 1986
- Canon Kabushiki Kaisha
- Naoya Kaneda
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL APPARATUS
- Publication number 20090161232
- Publication date Jun 25, 2009
- Canon Kabushiki Kaisha
- Youichi Iwasaki
- G02 - OPTICS
Information Patent Application
LENS BARREL AND OPTICAL APPARATUS
- Publication number 20080158692
- Publication date Jul 3, 2008
- Canon Kabushiki Kaisha
- Chifuyu Tomita
- G02 - OPTICS
Information Patent Application
Optical Apparatus Including Diaphragm Device
- Publication number 20070053684
- Publication date Mar 8, 2007
- Canon Kabushiki Kaisha
- Youichi Iwasaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Youichi Iwasaki

Person

Patents Grantslast 30 patents

Optical apparatus

Optical apparatus including diaphragm device

Lens barrel and optical apparatus

Quantity-of-light adjusting device and optical apparatus having the...

Quantity-of-light adjusting device and optical apparatus having the...

Quantity-of-light adjusting device using base and blade apertures f...

Image stabilizing device

Focus detecting system

Automatic follow-up focus detecting device and automatic follow-up...

Optical instrument

Light emitter and optical system for a distance measuring device

Active external distance measuring system having an optical device...

Automatic object image follow-up device

Distance detection apparatus

Automatic focusing device

Patents Applicationslast 30 patents

OPTICAL APPARATUS

LENS BARREL AND OPTICAL APPARATUS

Optical Apparatus Including Diaphragm Device