Seiichi Yasukawa

Person

Kawasaki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for controlling an amount of light emitted by...
- Patent number 6,085,040
- Issue date Jul 4, 2000
- Nikon Corporation
- Seiichi Yasukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera
- Patent number 5,899,589
- Issue date May 4, 1999
- Nikon Corporation
- Seiichi Yasukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Automatic focusing device which inhibits tracking drive control wit...
- Patent number 5,797,048
- Issue date Aug 18, 1998
- Nikon Corporation
- Yoshiharu Shiokama
- G02 - OPTICS
Information Patent Grant
Option setting device and method of operating same for use with a c...
- Patent number 5,749,004
- Issue date May 5, 1998
- Nikon Corporation
- Seiichi Yasukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Data communication control device
- Patent number 5,745,704
- Issue date Apr 28, 1998
- Nikon Corporation
- Seiichi Yasukawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Automatic focus adjustment device capable of accurately driving a p...
- Patent number 5,717,961
- Issue date Feb 10, 1998
- Nikon Corporation
- Seiichi Yasukawa
- G02 - OPTICS
Information Patent Grant
Camera provided with an automatic focus adjusting apparatus
- Patent number 5,694,625
- Issue date Dec 2, 1997
- Nikon Corporation
- Toshimi Watanabe
- G02 - OPTICS
Information Patent Grant
Autofocus control device having moving body tracking control
- Patent number 5,692,118
- Issue date Nov 25, 1997
- Nikon Corporation
- Seiichi Yasukawa
- G02 - OPTICS
Information Patent Grant
Motor drive control device which uses pulse width modulation to con...
- Patent number 5,687,277
- Issue date Nov 11, 1997
- Nikon Corporation
- Makoto Matsuzaki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Camera capable of communicating with an external device via communi...
- Patent number 5,678,078
- Issue date Oct 14, 1997
- Nikon Corporation
- Seiichi Yasukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image sensor system and auto-focus detection device
- Patent number 5,652,925
- Issue date Jul 29, 1997
- Nikon Corporation
- Hidehiko Aoyagi
- G02 - OPTICS
Information Patent Grant
Camera having a through-the-lens automatic light adjustment control...
- Patent number 5,652,929
- Issue date Jul 29, 1997
- Nikon Corporation
- Seiichi Yasukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Battery voltage detection device using pulse width modulation control
- Patent number 5,640,626
- Issue date Jun 17, 1997
- Nikon Corporation
- Yutaka Makiyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Autofocus adjustment device and method
- Patent number 5,619,300
- Issue date Apr 8, 1997
- Nikon Corporation
- Toshimi Watanabe
- G02 - OPTICS
Information Patent Grant
Automatic focus adjustment device for adjusting a focus state of a...
- Patent number 5,614,982
- Issue date Mar 25, 1997
- Nikon Corporation
- Seiichi Yasukawa
- G02 - OPTICS
Information Patent Grant
Focus state detection device
- Patent number 5,604,561
- Issue date Feb 18, 1997
- Nikon Corporation
- Masamitsu Ozawa
- G02 - OPTICS
Information Patent Grant
Photo-taking apparatus capable of making a photograph with flash by...
- Patent number 5,572,281
- Issue date Nov 5, 1996
- Nikon Corporation
- Shinichi Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Flash control apparatus
- Patent number 5,570,148
- Issue date Oct 29, 1996
- Nikon Corporation
- Hideo Hibino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Control system for an apparatus using a microcomputer
- Patent number 5,530,515
- Issue date Jun 25, 1996
- Nikon Corporation
- Takashi Saegusa
- G05 - CONTROLLING REGULATING
Information Patent Grant
Photometric apparatus for a camera
- Patent number 5,499,075
- Issue date Mar 12, 1996
- Nikon Corporation
- Toshihiro Sato
- G02 - OPTICS
Information Patent Grant
Camera data communication device
- Patent number 5,481,326
- Issue date Jan 2, 1996
- Nikon Corporation
- Seiichi Yasukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photo-taking apparatus capable of making a photograph with flash by...
- Patent number 5,450,162
- Issue date Sep 12, 1995
- Nikon Corporation
- Shinichi Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
TTL auto flash control device
- Patent number 5,422,702
- Issue date Jun 6, 1995
- Nikon Corporation
- Seiichi Yasukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Control system for an apparatus using a microcomputer
- Patent number 5,353,093
- Issue date Oct 4, 1994
- Nikon Corporation
- Takashi Saegusa
- G05 - CONTROLLING REGULATING
Information Patent Grant
A photo taking apparatus capable of making a photograph with flash...
- Patent number 5,305,048
- Issue date Apr 19, 1994
- Nikon Corporation
- Shinichi Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photometering circuit
- Patent number 5,291,238
- Issue date Mar 1, 1994
- Nikon Corporation
- Seiichi Yasukawa
- G01 - MEASURING TESTING
Information Patent Grant
Photometering device
- Patent number 5,276,320
- Issue date Jan 4, 1994
- Nikon Corporation
- Seiichi Yasukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photometric apparatus for a camera
- Patent number 5,231,448
- Issue date Jul 27, 1993
- Nikon Corporation
- Toshihiro Sato
- G02 - OPTICS
Information Patent Grant
TTL automatic light controlling camera system
- Patent number 5,227,836
- Issue date Jul 13, 1993
- Nikon Corporation
- Seiichi Yasukawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
TTL multiple flash control device
- Patent number 5,221,941
- Issue date Jun 22, 1993
- Nikon Corporation
- Akihiro Matsui
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Seiichi Yasukawa

Person

Patents Grantslast 30 patents

Apparatus and method for controlling an amount of light emitted by...

Camera

Automatic focusing device which inhibits tracking drive control wit...

Option setting device and method of operating same for use with a c...

Data communication control device

Automatic focus adjustment device capable of accurately driving a p...

Camera provided with an automatic focus adjusting apparatus

Autofocus control device having moving body tracking control

Motor drive control device which uses pulse width modulation to con...

Camera capable of communicating with an external device via communi...

Image sensor system and auto-focus detection device

Camera having a through-the-lens automatic light adjustment control...

Battery voltage detection device using pulse width modulation control

Autofocus adjustment device and method

Automatic focus adjustment device for adjusting a focus state of a...

Focus state detection device

Photo-taking apparatus capable of making a photograph with flash by...

Flash control apparatus

Control system for an apparatus using a microcomputer

Photometric apparatus for a camera

Camera data communication device

Photo-taking apparatus capable of making a photograph with flash by...

TTL auto flash control device

Control system for an apparatus using a microcomputer

A photo taking apparatus capable of making a photograph with flash...

Photometering circuit

Photometering device

Photometric apparatus for a camera

TTL automatic light controlling camera system

TTL multiple flash control device