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Yoshimi Ohno
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Kawasaki-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
DC motor
Patent number
7,307,368
Issue date
Dec 11, 2007
Ricoh Company, Ltd.
Ikuya Tsurukawa
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
DC motor rotation control apparatus
Patent number
6,628,893
Issue date
Sep 30, 2003
Ricoh Company, Ltd.
Yoshimi Ohno
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
DC motor rotation detecting apparatus and DC motor rotation control...
Patent number
6,617,816
Issue date
Sep 9, 2003
Ricoh Company, Ltd.
Yoshimi Ohno
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
DC motor rotation detecting apparatus and DC motor rotation control...
Patent number
6,570,350
Issue date
May 27, 2003
Ricoh Company, Ltd.
Yoshimi Ohno
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Camera which displays information to a user corresponding to a mess...
Patent number
5,682,563
Issue date
Oct 28, 1997
Ricoh Company, Ltd.
Junichi Shinohara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Camera having blurring movement correction mechanism
Patent number
5,309,190
Issue date
May 3, 1994
Ricoh Company, Ltd.
Junichi Shinohara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Focus state detection device
Patent number
5,293,034
Issue date
Mar 8, 1994
Ricoh Company, Ltd.
Yoshimi Ohno
G02 - OPTICS
Information
Patent Grant
Trimming information recordable camera
Patent number
5,270,755
Issue date
Dec 14, 1993
Ricoh Company, Ltd.
Yoshimi Ohno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Camera having blurring movement correction mechanism
Patent number
5,192,964
Issue date
Mar 9, 1993
Ricoh Company, Ltd.
Junichi Shinohara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Focus state detection device
Patent number
5,192,860
Issue date
Mar 9, 1993
Ricoh Company, Ltd.
Junichi Shinohara
G02 - OPTICS
Information
Patent Grant
Trimming information recordable camera
Patent number
5,150,143
Issue date
Sep 22, 1992
Ricoh Company, Ltd.
Yoshimi Ohno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Device and method for detecting a focusing state with reliability c...
Patent number
4,960,986
Issue date
Oct 2, 1990
Ricoh Company, Ltd.
Yoshimi Ohno
G02 - OPTICS
Information
Patent Grant
Varifocal lens device
Patent number
4,881,799
Issue date
Nov 21, 1989
Ricoh Company, Ltd.
Yoshimi Ohno
G02 - OPTICS
Information
Patent Grant
Variable focal lens device
Patent number
4,861,146
Issue date
Aug 29, 1989
Ricoh Company, Ltd.
Takayuki Hatase
G02 - OPTICS
Information
Patent Grant
Auto-focus arithmetic device
Patent number
4,831,405
Issue date
May 16, 1989
Ricoh Company, Ltd.
Daisuke Hata
G02 - OPTICS
Information
Patent Grant
Automatic focusing device for use in a camera
Patent number
4,825,237
Issue date
Apr 25, 1989
Ricoh Company Ltd.
Takayuki Hatase
G02 - OPTICS
Information
Patent Grant
Apparatus for controlling a motor in a camera
Patent number
4,818,921
Issue date
Apr 4, 1989
Ricoh Company, Ltd.
Daisuke Hata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Automatic focusing control system
Patent number
4,777,505
Issue date
Oct 11, 1988
Ricoh Company, Ltd.
Daisuke Hata
G02 - OPTICS
Information
Patent Grant
Focus detecting device and image signal amplifier circuit therefor
Patent number
4,763,154
Issue date
Aug 9, 1988
Ricoh Company, Ltd.
Susumu Iguchi
G02 - OPTICS
Information
Patent Grant
Charge-coupled device for automatic focusing and camera shake detec...
Patent number
4,733,264
Issue date
Mar 22, 1988
Ricoh Company, Ltd.
Takayuki Hatase
G02 - OPTICS
Information
Patent Grant
Single lens reflex camera
Patent number
4,605,295
Issue date
Aug 12, 1986
Ricoh Company, Ltd.
Yoshimi Ohno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Auto-focusing method
Patent number
4,561,747
Issue date
Dec 31, 1985
Ricoh Company, Ltd.
Yoshimi Ohno
G02 - OPTICS
Information
Patent Grant
Single lens reflex camera
Patent number
4,498,754
Issue date
Feb 12, 1985
Ricoh Company, Ltd.
Yoshimi Ohno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
DC motor
Publication number
20020163259
Publication date
Nov 7, 2002
RICOH COMPANY, LTD.
Yoshimi Ohno
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
DC motor rotation detecting apparatus and DC motor rotation control...
Publication number
20020044769
Publication date
Apr 18, 2002
RICOH COMPANY, LTD.
Yoshimi Ohno
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
DC motor
Publication number
20020027395
Publication date
Mar 7, 2002
RICOH COMPANY, LTD.
Ikuya Tsurukawa
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
DC motor rotation detecting apparatus and DC motor rotation control...
Publication number
20010022505
Publication date
Sep 20, 2001
Ricoh Company, Ltd.
Yoshimi Ohno
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
DC motor rotation control apparatus
Publication number
20010019660
Publication date
Sep 6, 2001
RICOH COMPANY, LTD.
Yoshimi Ohno
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER