Chikara Imai

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Toner transfer back suppressing color image forming apparatus
- Patent number 7,079,798
- Issue date Jul 18, 2006
- Ricoh Company, Ltd.
- Kazumi Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus using the same
- Patent number 6,708,015
- Issue date Mar 16, 2004
- Ricoh Company, Ltd.
- Hisao Kurosu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including electrostatic conveyance of charg...
- Patent number 6,597,884
- Issue date Jul 22, 2003
- Ricoh Company, Ltd.
- Yohichiroh Miyaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device for image forming apparatus
- Patent number 5,864,733
- Issue date Jan 26, 1999
- Ricoh Company, Ltd.
- Asami Mae
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus capable of forming an erasable image
- Patent number 5,394,231
- Issue date Feb 28, 1995
- Ricoh Company, Ltd.
- Kazuhisa Sudo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image density control method for an image forming apparatus
- Patent number 5,258,248
- Issue date Nov 2, 1993
- Ricoh Company, Ltd.
- Masaki Tokuhashi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of removing a film from an image carrier of an image forming...
- Patent number 5,003,354
- Issue date Mar 26, 1991
- Ricoh Company, Ltd.
- Yoshio Takamiya
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method of removing a film from an image carrier
- Patent number 4,975,748
- Issue date Dec 4, 1990
- Ricoh Company, Ltd.
- Nobuyuki Koinuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image density control method for an image forming apparatus
- Patent number 4,910,557
- Issue date Mar 20, 1990
- Ricoh Company, Ltd.
- Chikara Imai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic apparatus
- Patent number 4,632,537
- Issue date Dec 30, 1986
- Ricoh Company, Ltd.
- Chikara Imai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dual mode image density controlling method
- Patent number 4,619,522
- Issue date Oct 28, 1986
- Ricoh Company, Ltd.
- Chikara Imai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner supply control method for electrophotographic copier
- Patent number 4,522,481
- Issue date Jun 11, 1985
- Ricoh Company, Ltd.
- Chikara Imai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Reproduction process control method
- Patent number 4,508,446
- Issue date Apr 2, 1985
- Ricoh Company, Ltd.
- Chikara Imai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process of exposing photosensitive member
- Patent number 4,487,501
- Issue date Dec 11, 1984
- Ricoh Company, Ltd.
- Shigeru Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrophotographic copying process and apparatus having means for...
- Patent number 4,474,455
- Issue date Oct 2, 1984
- Ricoh Company, Ltd.
- Kohji Hirakura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrometer apparatus
- Patent number 4,330,749
- Issue date May 18, 1982
- Ricoh Company, Ltd.
- Tadahiro Eda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrometer probe
- Patent number 4,318,042
- Issue date Mar 2, 1982
- Ricoh Company, Ltd.
- Tadahiro Eda
- G01 - MEASURING TESTING
Information Patent Grant
Electrostatographic copying apparatus with automatic toner density...
- Patent number 4,279,498
- Issue date Jul 21, 1981
- Ricoh Company, Ltd.
- Tadahiro Eda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Copy image adjustment method
- Patent number 4,277,549
- Issue date Jul 7, 1981
- Ricoh Company, Ltd.
- Susumu Tatsumi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatographic apparatus comprising developing bias means
- Patent number 4,266,870
- Issue date May 12, 1981
- Ricoh Company, Ltd.
- Tadahiro Eda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatographic apparatus comprising improved developing bias c...
- Patent number 4,213,693
- Issue date Jul 22, 1980
- Ricoh Company, Ltd.
- Chikara Imai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatographic apparatus comprising document density sensing m...
- Patent number 4,200,391
- Issue date Apr 29, 1980
- Ricoh Company, Ltd.
- Koji Sakamoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Photosensitive material for electrophotography with dye containing...
- Patent number 4,191,568
- Issue date Mar 4, 1980
- Ricoh Co., Ltd.
- Hideaki Ema
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Toner transfer back suppressing color image forming apparatus
- Publication number 20060072943
- Publication date Apr 6, 2006
- Kazumi Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developing device and image forming apparatus using the same
- Publication number 20020146632
- Publication date Oct 10, 2002
- Hisao Kurosu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus
- Publication number 20020037182
- Publication date Mar 28, 2002
- RICOH COMPANY, LTD.
- Yohichiroh Miyaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Chikara Imai

Person

Patents Grantslast 30 patents

Toner transfer back suppressing color image forming apparatus

Developing device and image forming apparatus using the same

Image forming apparatus including electrostatic conveyance of charg...

Developing device for image forming apparatus

Image forming apparatus capable of forming an erasable image

Image density control method for an image forming apparatus

Method of removing a film from an image carrier of an image forming...

Method of removing a film from an image carrier

Image density control method for an image forming apparatus

Electrophotographic apparatus

Dual mode image density controlling method

Toner supply control method for electrophotographic copier

Reproduction process control method

Process of exposing photosensitive member

Electrophotographic copying process and apparatus having means for...

Electrometer apparatus

Electrometer probe

Electrostatographic copying apparatus with automatic toner density...

Copy image adjustment method

Electrostatographic apparatus comprising developing bias means

Electrostatographic apparatus comprising improved developing bias c...

Electrostatographic apparatus comprising document density sensing m...

Photosensitive material for electrophotography with dye containing...

Patents Applicationslast 30 patents

Toner transfer back suppressing color image forming apparatus

Developing device and image forming apparatus using the same

Image forming apparatus