Yoichi Seki

Person

Shikawatashi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Data structure for representing information using expressions
- Patent number 9,990,415
- Issue date Jun 5, 2018
- Maeda Corporation
- Yoichi Seki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Exposure control drive apparatus
- Patent number 6,650,833
- Issue date Nov 18, 2003
- Seiko Precision Inc.
- Hajime Oda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera having data protection means
- Patent number 6,144,806
- Issue date Nov 7, 2000
- Seiko Precision Inc.
- Yoichi Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photometric device and camera having the photometric device
- Patent number 6,058,270
- Issue date May 2, 2000
- Seiko Precision Inc.
- Yoichi Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Light measuring apparatus and camera using the light measuring appa...
- Patent number 6,029,014
- Issue date Feb 22, 2000
- Seiko Precision Inc.
- Yoichi Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera with battery checkup function
- Patent number 5,732,295
- Issue date Mar 24, 1998
- Seiko Precision Inc.
- Yoichi Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electronic circuit having electrically isolated digital and analog...
- Patent number 5,621,347
- Issue date Apr 15, 1997
- Seiko Precision Inc.
- Hiroyuki Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Distance measuring device
- Patent number 5,614,984
- Issue date Mar 25, 1997
- Seikosha Co., Ltd.
- Yoichi Seki
- G02 - OPTICS
Information Patent Grant
Distance measuring apparatus for a camera
- Patent number 5,610,680
- Issue date Mar 11, 1997
- Seiko Precison Inc.
- Yoichi Seki
- G02 - OPTICS
Information Patent Grant
Distance measuring device and camera having same
- Patent number 5,461,451
- Issue date Oct 24, 1995
- Seikosha Co., Ltd.
- Yoichi Seki
- G02 - OPTICS
Information Patent Grant
Distance measuring device for camera
- Patent number 5,444,511
- Issue date Aug 22, 1995
- Seikosha Co., Ltd.
- Yoichi Seki
- G02 - OPTICS
Information Patent Grant
Device for correcting characteristic errors of a camera
- Patent number 5,371,691
- Issue date Dec 6, 1994
- Seikosha Co., Ltd.
- Yoichi Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Power supply control circuit for a display of a camera
- Patent number 5,365,305
- Issue date Nov 15, 1994
- Seikosha Co., Ltd.
- Yoichi Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Camera and film winding-up apparatus for camera
- Patent number 5,359,376
- Issue date Oct 25, 1994
- Seikosha Co., Ltd.
- Masuo Ogihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Distance measuring device for a camera
- Patent number 5,357,309
- Issue date Oct 18, 1994
- Seikosha Co., Ltd.
- Yoichi Seki
- G02 - OPTICS
Information Patent Grant
Data imprintable camera
- Patent number 5,353,092
- Issue date Oct 4, 1994
- Seikosha Co., Ltd.
- Yoichi Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Power supply circuit for driving a light emitting element
- Patent number 5,327,070
- Issue date Jul 5, 1994
- Seikosha Co., Ltd.
- Yoichi Seki
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Camera dual switch single data input-multiple data output device
- Patent number 5,317,357
- Issue date May 31, 1994
- Seikosha Co., Ltd.
- Yoichi Seki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Distance measuring device and camera having same
- Patent number 5,258,800
- Issue date Nov 2, 1993
- Seikosha Co., Ltd.
- Yoichi Seki
- G02 - OPTICS
Information Patent Grant
Program shutter
- Patent number 5,109,250
- Issue date Apr 28, 1992
- Seikosha Co., Ltd.
- Nobuo Shinozaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Integrated circuit with battery serving as power source having CMOS...
- Patent number 5,107,138
- Issue date Apr 21, 1992
- Seikosha Co., Ltd.
- Yoichi Seki
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Battery voltage detecting device
- Patent number 5,099,209
- Issue date Mar 24, 1992
- Seikosha Co., Ltd.
- Yoichi Seki
- G01 - MEASURING TESTING
Information Patent Grant
Programmable shutter
- Patent number 5,006,880
- Issue date Apr 9, 1991
- Seikosha Co., Ltd.
- Masuo Ogihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photometric circuit
- Patent number 4,980,545
- Issue date Dec 25, 1990
- Seikosha Co., Ltd.
- Yoichi Seki
- G01 - MEASURING TESTING
Information Patent Grant
Device for adjusting camera in the initial stage
- Patent number 4,959,675
- Issue date Sep 25, 1990
- Seikosha Co., Ltd.
- Yoichi Seki
- G02 - OPTICS
Information Patent Grant
Circuit for detecting back light
- Patent number 4,945,378
- Issue date Jul 31, 1990
- Seikosha Co., Ltd.
- Shinji Nagaoka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Multiple exposure photographic device for camera
- Patent number 4,937,603
- Issue date Jun 26, 1990
- Seikosha Co., Ltd.
- Yukio Morino
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Strobe control circuit for flash photography
- Patent number 4,771,309
- Issue date Sep 13, 1988
- Seikosha Co., Ltd.
- Masuo Ogihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Automatic film sensitivity change-over device
- Patent number 4,702,579
- Issue date Oct 27, 1987
- Seikosha Co., Ltd.
- Masuo Ogihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Program shutter
- Patent number 4,697,908
- Issue date Oct 6, 1987
- Seikosha Co., Ltd.
- Masuo Ogihara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND P...
- Publication number 20170270187
- Publication date Sep 21, 2017
- Maeda Corporation
- Yoichi Seki
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Image pick-up device and portable electronic device having the same
- Publication number 20030107669
- Publication date Jun 12, 2003
- Akira Ito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Image pick-up device and portable electronic device having the same
- Publication number 20030107656
- Publication date Jun 12, 2003
- Akira Ito
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Yoichi Seki

Person

Patents Grantslast 30 patents

Data structure for representing information using expressions

Exposure control drive apparatus

Camera having data protection means

Photometric device and camera having the photometric device

Light measuring apparatus and camera using the light measuring appa...

Camera with battery checkup function

Electronic circuit having electrically isolated digital and analog...

Distance measuring device

Distance measuring apparatus for a camera

Distance measuring device and camera having same

Distance measuring device for camera

Device for correcting characteristic errors of a camera

Power supply control circuit for a display of a camera

Camera and film winding-up apparatus for camera

Distance measuring device for a camera

Data imprintable camera

Power supply circuit for driving a light emitting element

Camera dual switch single data input-multiple data output device

Distance measuring device and camera having same

Program shutter

Integrated circuit with battery serving as power source having CMOS...

Battery voltage detecting device

Programmable shutter

Photometric circuit

Device for adjusting camera in the initial stage

Circuit for detecting back light

Multiple exposure photographic device for camera

Strobe control circuit for flash photography

Automatic film sensitivity change-over device

Program shutter

Patents Applicationslast 30 patents

INFORMATION PROCESSING DEVICE, INFORMATION PROCESSING METHOD, AND P...

Image pick-up device and portable electronic device having the same

Image pick-up device and portable electronic device having the same