Yasuhisa Sato

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Compact zoom lens
- Patent number 5,270,866
- Issue date Dec 14, 1993
- Canon Kabushiki Kaisha
- Kouji Oizumi
- G02 - OPTICS
Information Patent Grant
Photographic optical device with variable magnification
- Patent number 4,871,238
- Issue date Oct 3, 1989
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Magnification change-over device for camera
- Patent number 4,862,202
- Issue date Aug 29, 1989
- Canon Kabushiki Kaisha
- Takayuki Tsuboi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Finder of variable magnification
- Patent number 4,842,395
- Issue date Jun 27, 1989
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Variable magnification optical system
- Patent number 4,830,474
- Issue date May 16, 1989
- Canon Kabushiki Kaisha
- Hiroki Nakayama
- G02 - OPTICS
Information Patent Grant
Small sized zoom lens
- Patent number 4,815,830
- Issue date Mar 28, 1989
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Finding device of variable magnification
- Patent number 4,779,969
- Issue date Oct 25, 1988
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Conversion lens releasably attached behind master lens
- Patent number 4,770,508
- Issue date Sep 13, 1988
- Canon Kabushiki Kaisha
- Yasuyuki Yamada
- G02 - OPTICS
Information Patent Grant
View finder of variable magnification
- Patent number 4,757,336
- Issue date Jul 12, 1988
- Canon Kabushiki Kaisha
- Hiroki Nakayama
- G02 - OPTICS
Information Patent Grant
Variable power finder
- Patent number 4,751,539
- Issue date Jun 14, 1988
- Canon Kabushiki Kaisha
- Yasuyuki Yamada
- G02 - OPTICS
Information Patent Grant
Zoom lens of short total length
- Patent number 4,726,668
- Issue date Feb 23, 1988
- Canon Kabushiki Kaisha
- Hiroki Nakayama
- G02 - OPTICS
Information Patent Grant
Varifocal type finder
- Patent number 4,715,692
- Issue date Dec 29, 1987
- Canon Kabushiki Kaisha
- Yasuyuki Yamada
- G02 - OPTICS
Information Patent Grant
Flash device for camera
- Patent number 4,702,581
- Issue date Oct 27, 1987
- Canon Kabushiki Kaisha
- Yasuyuki Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Beam splitter for changing optical paths small tilt
- Patent number 4,697,882
- Issue date Oct 6, 1987
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Compact photographic lens
- Patent number 4,695,134
- Issue date Sep 22, 1987
- Canon Kabushiki Kaisha
- Hiroki Nakayama
- G02 - OPTICS
Information Patent Grant
Vari-focal objective lens of short total length
- Patent number 4,679,913
- Issue date Jul 14, 1987
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Small size zoom lens
- Patent number 4,659,186
- Issue date Apr 21, 1987
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Compact zoom lens with short back focal distance
- Patent number 4,652,091
- Issue date Mar 24, 1987
- Canon Kabushiki Kaisha
- Kouji Oizumi
- G02 - OPTICS
Information Patent Grant
Rear conversion lens
- Patent number 4,643,536
- Issue date Feb 17, 1987
- Canon Kabushiki Kaisha
- Yasuyuki Yamada
- G02 - OPTICS
Information Patent Grant
Conversion type varifocal lens system
- Patent number 4,596,447
- Issue date Jun 24, 1986
- Canon Kabushiki Kaisha
- Yasuyuki Yamada
- G02 - OPTICS
Information Patent Grant
Finder system
- Patent number 4,595,270
- Issue date Jun 17, 1986
- Canon Kabushiki Kaisha
- Yasuyuki Yamada
- G02 - OPTICS
Information Patent Grant
Albada finder with display within the field of view
- Patent number 4,582,409
- Issue date Apr 15, 1986
- Canon Kabushiki Kaisha
- Yasuyuki Yamada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Triplet type objective
- Patent number 4,542,961
- Issue date Sep 24, 1985
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Interchangeable lens permitting an automatic focus-adjusting device...
- Patent number 4,486,074
- Issue date Dec 4, 1984
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Photographic objective
- Patent number 4,477,154
- Issue date Oct 16, 1984
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Photographic lens of the partial focusing type
- Patent number 4,477,155
- Issue date Oct 16, 1984
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Light receiving apparatus for use in single-lens reflex camera
- Patent number 4,456,352
- Issue date Jun 26, 1984
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light measuring device for a single lens reflex camera
- Patent number 4,437,741
- Issue date Mar 20, 1984
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Compact photographic objective
- Patent number 4,413,888
- Issue date Nov 8, 1983
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS
Information Patent Grant
Compact zoom lens
- Patent number 4,380,377
- Issue date Apr 19, 1983
- Canon Kabushiki Kaisha
- Yasuhisa Sato
- G02 - OPTICS

Yasuhisa Sato

Person

Patents Grantslast 30 patents

Compact zoom lens

Photographic optical device with variable magnification

Magnification change-over device for camera

Finder of variable magnification

Variable magnification optical system

Small sized zoom lens

Finding device of variable magnification

Conversion lens releasably attached behind master lens

View finder of variable magnification

Variable power finder

Zoom lens of short total length

Varifocal type finder

Flash device for camera

Beam splitter for changing optical paths small tilt

Compact photographic lens

Vari-focal objective lens of short total length

Small size zoom lens

Compact zoom lens with short back focal distance

Rear conversion lens

Conversion type varifocal lens system

Finder system

Albada finder with display within the field of view

Triplet type objective

Interchangeable lens permitting an automatic focus-adjusting device...

Photographic objective

Photographic lens of the partial focusing type

Light receiving apparatus for use in single-lens reflex camera

Light measuring device for a single lens reflex camera

Compact photographic objective

Compact zoom lens