Seiichi Matsumoto

Person

Yokohama, JA

People

Patents Grantslast 30 patents

Information Patent Grant
Photo-sensing circuit
- Patent number 4,095,241
- Issue date Jun 13, 1978
- Canon Kabushiki Kaisha
- Seiichi Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Object distance measuring system for an optical instrument
- Patent number 4,053,240
- Issue date Oct 11, 1977
- Canon Kabushiki Kaisha
- Hiroshi Aizawa
- G02 - OPTICS
Information Patent Grant
Method for detecting visibility of image of an object and a device...
- Patent number 4,031,383
- Issue date Jun 21, 1977
- Canon Kabushiki Kaisha
- Kazuya Hosoe
- G02 - OPTICS
Information Patent Grant
Level detection system having a band-pass characteristic and a serv...
- Patent number 4,016,471
- Issue date Apr 5, 1977
- Canon Kabushiki Kaisha
- Seiichi Matsumoto
- G05 - CONTROLLING REGULATING
Information Patent Grant
Focus detecting system
- Patent number 3,999,192
- Issue date Dec 21, 1976
- Canon Kabushiki Kaisha
- Kazuya Hosoe
- G02 - OPTICS
Information Patent Grant
Photo-electric conversion element and a method for detecting object...
- Patent number 3,984,677
- Issue date Oct 5, 1976
- Canon Kabushiki Kaisha
- Kazuya Hosoe
- G02 - OPTICS
Information Patent Grant
Exposure control apparatus for a camera
- Patent number 3,973,267
- Issue date Aug 3, 1976
- Canon Kabushiki Kaisha
- Teiji Hashimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image sharpness detecting system and apparatus utilizing the same
- Patent number 3,961,178
- Issue date Jun 1, 1976
- Canon Kabushiki Kaisha
- Kazuya Hosoe
- G02 - OPTICS
Information Patent Grant
Automatic focus adjustment of a camera
- Patent number 3,953,729
- Issue date Apr 27, 1976
- Canon Kabushiki Kaisha
- Kazuya Hosoe
- G02 - OPTICS
Information Patent Grant
System for automatically focusing an object in a camera or the like
- Patent number 3,950,764
- Issue date Apr 13, 1976
- Canon Kabushiki Kaisha
- Kazuya Hosoe
- G02 - OPTICS
Information Patent Grant
Focus defecting system
- Patent number 3,937,950
- Issue date Feb 10, 1976
- Canon Kabushiki Kaisha
- Kazuya Hosoe
- G02 - OPTICS

Seiichi Matsumoto

Person

Patents Grantslast 30 patents

Photo-sensing circuit

Object distance measuring system for an optical instrument

Method for detecting visibility of image of an object and a device...

Level detection system having a band-pass characteristic and a serv...

Focus detecting system

Photo-electric conversion element and a method for detecting object...

Exposure control apparatus for a camera

Image sharpness detecting system and apparatus utilizing the same

Automatic focus adjustment of a camera

System for automatically focusing an object in a camera or the like

Focus defecting system