SADAHIKO TSUJI

Person

YOKOHAMA-SHI, JP

People

Patents Grantslast 30 patents

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
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
Image taking apparatus
- Patent number 5,757,423
- Issue date May 26, 1998
- Canon Kabushiki Kaisha
- Tsunefumi Tanaka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Optical apparatus provided with a driving unit for moving a lens
- Patent number 5,572,372
- Issue date Nov 5, 1996
- Canon Kabushiki Kaisha
- Masayoshi Sekine
- G02 - OPTICS
Information Patent Grant
Polarization converting apparatus and optical instrument having the...
- Patent number 5,461,500
- Issue date Oct 24, 1995
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Optical apparatus provided with a driving unit for moving a lens
- Patent number 5,289,318
- Issue date Feb 22, 1994
- Canon Kabushiki Kaisha
- Masayoshi Sekine
- G02 - OPTICS
Information Patent Grant
Image stabilizing apparatus
- Patent number 5,243,462
- Issue date Sep 7, 1993
- Canon Kabushiki Kaisha
- Takashi Kobayashi
- G02 - OPTICS
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
Image stabilization lens system
- Patent number 5,040,881
- Issue date Aug 20, 1991
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Image-stabilizing optical device
- Patent number 4,998,809
- Issue date Mar 12, 1991
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Focus detecting device and photographing apparatus provided with th...
- Patent number 4,974,009
- Issue date Nov 27, 1990
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Zoom lens having built-in diaphragm
- Patent number 4,963,005
- Issue date Oct 16, 1990
- Canon Kabushiki Kaishi
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Conversion lens
- Patent number 4,929,068
- Issue date May 29, 1990
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Compact zoom lens
- Patent number 4,854,681
- Issue date Aug 8, 1989
- Canon Kabushiki Kaisha
- Masatake Kato
- G02 - OPTICS
Information Patent Grant
Photographic system having front conversion lens
- Patent number 4,854,679
- Issue date Aug 8, 1989
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Lens system of variable magnification range and having a supplement...
- Patent number 4,807,982
- Issue date Feb 28, 1989
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Diaphragm device
- Patent number 4,797,700
- Issue date Jan 10, 1989
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Zoom lens with beam splitter
- Patent number 4,786,150
- Issue date Nov 22, 1988
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Compact zoom lens
- Patent number 4,763,998
- Issue date Aug 16, 1988
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Compact zoom lens having a large aperture and good aberation correc...
- Patent number 4,749,266
- Issue date Jun 7, 1988
- Canon Kabushiki Kaisha
- Sadatoshi Takahashi
- G02 - OPTICS
Information Patent Grant
High magnification range zoom lens
- Patent number 4,720,180
- Issue date Jan 19, 1988
- Canon Kabushiki Kaisha
- Toshiaki Asano
- G02 - OPTICS
Information Patent Grant
Rear focus zoom lens
- Patent number 4,712,883
- Issue date Dec 15, 1987
- Canon Kabushiki Kaisha
- Masatake Kato
- G02 - OPTICS
Information Patent Grant
Photographic objective
- Patent number 4,708,444
- Issue date Nov 24, 1987
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Zoom lens having a large zoom ratio
- Patent number 4,696,553
- Issue date Sep 29, 1987
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Zoom lens system
- Patent number 4,687,303
- Issue date Aug 18, 1987
- Canon Kabushiki Kaisha
- Sadatoshi Takahashi
- G02 - OPTICS
Information Patent Grant
Compact finder
- Patent number 4,673,262
- Issue date Jun 16, 1987
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Zoom lens using elements made of plastic materials
- Patent number 4,659,187
- Issue date Apr 21, 1987
- Canon Kabushiki Kaisha
- Sadahiko Tsuji
- G02 - OPTICS
Information Patent Grant
Zoom lens
- Patent number 4,653,874
- Issue date Mar 31, 1987
- Canon Kabushiki Kaisha
- Sadatoshi Takahashi
- G02 - OPTICS
Information Patent Grant
Zoom lens
- Patent number 4,626,076
- Issue date Dec 2, 1986
- Canon Kabushiki Kaisha
- Sigeru Oshima
- G02 - OPTICS
Information Patent Grant
Zoom lens
- Patent number 4,618,219
- Issue date Oct 21, 1986
- Canon Kabushiki Kaisha
- Muneharu Sugiura
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL ELEMENT AND OPTICAL SYSTEM HAVING THE SAME
- Publication number 20010013974
- Publication date Aug 16, 2001
- KEISUKE ARAKI
- G02 - OPTICS

SADAHIKO TSUJI

Person

Patents Grantslast 30 patents

Optical element and optical system having the same

Image displaying apparatus having magnification-changing system

Image taking apparatus

Optical apparatus provided with a driving unit for moving a lens

Polarization converting apparatus and optical instrument having the...

Optical apparatus provided with a driving unit for moving a lens

Image stabilizing apparatus

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

Image stabilization lens system

Image-stabilizing optical device

Focus detecting device and photographing apparatus provided with th...

Zoom lens having built-in diaphragm

Conversion lens

Compact zoom lens

Photographic system having front conversion lens

Lens system of variable magnification range and having a supplement...

Diaphragm device

Zoom lens with beam splitter

Compact zoom lens

Compact zoom lens having a large aperture and good aberation correc...

High magnification range zoom lens

Rear focus zoom lens

Photographic objective

Zoom lens having a large zoom ratio

Zoom lens system

Compact finder

Zoom lens using elements made of plastic materials

Zoom lens

Zoom lens

Zoom lens

Patents Applicationslast 30 patents

OPTICAL ELEMENT AND OPTICAL SYSTEM HAVING THE SAME