Keiji Okano

Person

Shizuoka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Developer regulating member with surface roughness parameters
- Patent number 7,289,756
- Issue date Oct 30, 2007
- Canon Kabushiki Kaisha
- Hideaki Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge comprising memory medium storing information for...
- Patent number 7,194,215
- Issue date Mar 20, 2007
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having charging member supplied with a plur...
- Patent number 7,035,560
- Issue date Apr 25, 2006
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging system, process cartridge and image forming apparatus
- Patent number 6,898,401
- Issue date May 24, 2005
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging apparatus determining a peak-to-peak voltage to be applied...
- Patent number 6,882,806
- Issue date Apr 19, 2005
- Canon Kabushiki Kaisha
- Satoshi Sunahara
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus
- Patent number 6,829,447
- Issue date Dec 7, 2004
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Charging system, process cartridge and image forming apparatus
- Patent number 6,741,824
- Issue date May 25, 2004
- Canon Kabushiki Kaisha
- Masaki Ojima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Memory device for an image forming apparatus storing characteristic...
- Patent number 6,686,942
- Issue date Feb 3, 2004
- Canon Kabushiki Kaisha
- Keiji Okano
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image forming apparatus with pixel density based light beam control
- Patent number 6,559,875
- Issue date May 6, 2003
- Canon Kabushiki Kaisha
- Keiji Okano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Process cartridge, image forming apparatus, and image forming method
- Patent number 6,532,030
- Issue date Mar 11, 2003
- Canon Kabushiki Kaisha
- Keiji Okano
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Developing apparatus including intermittent developer agitating fea...
- Patent number 6,370,348
- Issue date Apr 9, 2002
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge and image forming apparatus including a developer...
- Patent number 6,343,193
- Issue date Jan 29, 2002
- Canon Kabushiki Kaisha
- Hideki Matsumoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus and image forming apparatus having first and s...
- Patent number 6,272,306
- Issue date Aug 7, 2001
- Canon Kabushiki Kaisha
- Masanobu Saito
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer apparatus featuring a developer container partition porti...
- Patent number 6,226,464
- Issue date May 1, 2001
- Canon Kabushiki Kaisha
- Koichi Suwa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Development density adjusting method for image forming apparatus
- Patent number 6,167,212
- Issue date Dec 26, 2000
- Canon Kabushiki Kaisha
- Hiroshi Satoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus
- Patent number 6,058,284
- Issue date May 2, 2000
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device comprising a magnetic member
- Patent number 5,781,835
- Issue date Jul 14, 1998
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus having reciprocating cleaning device for photo...
- Patent number 5,682,574
- Issue date Oct 28, 1997
- Canon Kabushiki Kaisha
- Haruhisa Oshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus comprising contact type charging member
- Patent number 5,666,606
- Issue date Sep 9, 1997
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing unit having optical detection of a residual quantity of...
- Patent number 5,649,264
- Issue date Jul 15, 1997
- Canon Kabushiki Kaisha
- Akira Domon
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic toner and image forming method
- Patent number 5,618,647
- Issue date Apr 8, 1997
- Canon Kabushiki Kaisha
- Tsutomu Kukimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge, assembling method therefor and electrophotograph...
- Patent number 5,589,918
- Issue date Dec 31, 1996
- Canon Kabushiki Kaisha
- Haruhisa Oshida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic latent image device having a coating layer provided o...
- Patent number 5,185,496
- Issue date Feb 9, 1993
- Canon Kabushiki Kaisha
- Katsuhiko Nishimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus with elastic regulating member urged to a deve...
- Patent number 5,177,537
- Issue date Jan 5, 1993
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus having developer layer regulation means
- Patent number 5,084,733
- Issue date Jan 28, 1992
- Canon Kabushiki Kaisha
- Motoi Katoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus having developer carrying roller with carbon f...
- Patent number 5,027,745
- Issue date Jul 2, 1991
- Canon Kabushiki Kaisha
- Michihito Yamazaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing apparatus for developing electrostatic latent images
- Patent number 4,989,044
- Issue date Jan 29, 1991
- Canon Kabushiki Kaisha
- Katsuhiko Nishimura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
Developer regulating member and developing apparatus
- Publication number 20070065185
- Publication date Mar 22, 2007
- Canon Kabushiki Kaisha
- Hideaki Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Process cartridge, memory medium for the process cartridge, image f...
- Publication number 20050271406
- Publication date Dec 8, 2005
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging system, process cartridge and image forming apparatus
- Publication number 20040022558
- Publication date Feb 5, 2004
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Process cartridge, memory medium for the process cartridge, image f...
- Publication number 20030215253
- Publication date Nov 20, 2003
- Canon Kabushiki Kaisha
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Charging system, process cartridge and image forming apparatus
- Publication number 20030198485
- Publication date Oct 23, 2003
- Canon Kabushiki Kaisha
- Masaki Ojima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Process cartridge, image forming apparatus, and image forming method
- Publication number 20030090559
- Publication date May 15, 2003
- Canon Kabushiki Kaisha
- Keiji Okano
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Developing apparatus
- Publication number 20020164174
- Publication date Nov 7, 2002
- Keiji Okano
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
PHOTOSENSITIVE MEMBER AND CLEANING APPARATUS
- Publication number 20020119381
- Publication date Aug 29, 2002
- SATORU MOTOHASHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Process cartridge, image forming apparatus, and image forming method
- Publication number 20020097314
- Publication date Jul 25, 2002
- Keiji Okano
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Image forming apparatus
- Publication number 20020033873
- Publication date Mar 21, 2002
- Keiji Okano
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Keiji Okano

Person

Patents Grantslast 30 patents

Developer regulating member with surface roughness parameters

Process cartridge comprising memory medium storing information for...

Image forming apparatus having charging member supplied with a plur...

Charging system, process cartridge and image forming apparatus

Charging apparatus determining a peak-to-peak voltage to be applied...

Developing apparatus

Charging system, process cartridge and image forming apparatus

Memory device for an image forming apparatus storing characteristic...

Image forming apparatus with pixel density based light beam control

Process cartridge, image forming apparatus, and image forming method

Developing apparatus including intermittent developer agitating fea...

Process cartridge and image forming apparatus including a developer...

Developing apparatus and image forming apparatus having first and s...

Developer apparatus featuring a developer container partition porti...

Development density adjusting method for image forming apparatus

Developing apparatus

Developing device comprising a magnetic member

Developing apparatus having reciprocating cleaning device for photo...

Image forming apparatus comprising contact type charging member

Developing unit having optical detection of a residual quantity of...

Magnetic toner and image forming method

Process cartridge, assembling method therefor and electrophotograph...

Electrostatic latent image device having a coating layer provided o...

Developing apparatus with elastic regulating member urged to a deve...

Developing apparatus having developer layer regulation means

Developing apparatus having developer carrying roller with carbon f...

Developing apparatus for developing electrostatic latent images

Patents Applicationslast 30 patents

Developer regulating member and developing apparatus

Process cartridge, memory medium for the process cartridge, image f...

Charging system, process cartridge and image forming apparatus

Process cartridge, memory medium for the process cartridge, image f...

Charging system, process cartridge and image forming apparatus

Process cartridge, image forming apparatus, and image forming method

Developing apparatus

PHOTOSENSITIVE MEMBER AND CLEANING APPARATUS

Process cartridge, image forming apparatus, and image forming method

Image forming apparatus