Tsutomu Onuma

Person

Kanagawa, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Process for producing toner, and toner
- Patent number 7,745,089
- Issue date Jun 29, 2010
- Canon Kabushiki Kaisha
- Nobuyuki Okubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming method and process cartridge using specific toner reg...
- Patent number 7,457,572
- Issue date Nov 25, 2008
- Canon Kabushiki Kaisha
- Tsutomu Onuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner
- Patent number 7,351,509
- Issue date Apr 1, 2008
- Canon Kabushiki Kaisha
- Shuhei Moribe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process for producing toner, and toner
- Patent number 7,306,889
- Issue date Dec 11, 2007
- Canon Kabushiki Kaisha
- Nobuyuki Okubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner
- Patent number 7,288,354
- Issue date Oct 30, 2007
- Canon Kabushiki Kaisha
- Shuhei Moribe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner
- Patent number 7,273,686
- Issue date Sep 25, 2007
- Canon Kabushiki Kaisha
- Tsutomu Onuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Process cartridge
- Patent number 6,810,217
- Issue date Oct 26, 2004
- Canon Kabushiki Kaisha
- Kaori Hiratsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner production process
- Patent number 6,673,506
- Issue date Jan 6, 2004
- Canon Kabushiki Kaisha
- Tsuneo Nakanishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic toner and process cartridge
- Patent number 6,630,275
- Issue date Oct 7, 2003
- Canon Kabushiki Kaisha
- Kaori Hiratsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Dry toner, image forming method and process cartridge
- Patent number 6,589,701
- Issue date Jul 8, 2003
- Canon Kabushiki Kaisha
- Katsuhisa Yamazaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Method using toner and developer for developing electrostatic image
- Patent number 6,541,174
- Issue date Apr 1, 2003
- Canon Kabushiki Kaisha
- Hirohide Tanikawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Toner for developing electrostatic images and heat fixing method
- Patent number 6,537,716
- Issue date Mar 25, 2003
- Canon Kabushiki Kaisha
- Shinji Doi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner having hydrocarbon wax with specific ester value and hydroxyl...
- Patent number 6,458,499
- Issue date Oct 1, 2002
- Canon Kabushiki Kaisha
- Tsutomu Onuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner containing azo iron compound
- Patent number 6,426,169
- Issue date Jul 30, 2002
- Canon Kabushiki Kaisha
- Tsutomu Onuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner and developer for developing electrostatic image, process for...
- Patent number 6,187,496
- Issue date Feb 13, 2001
- Canon Kabushiki Kaisha
- Hirohide Tanikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing electrostatic images
- Patent number 6,120,961
- Issue date Sep 19, 2000
- Canon Kabushiki Kaisha
- Hirohide Tanikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner and developer for developing electrostatic image, process for...
- Patent number 6,077,638
- Issue date Jun 20, 2000
- Canon Kabushiki Kaisha
- Hirohide Tanikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Positive-chargeable toner, image forming method and apparatus unit
- Patent number 6,020,102
- Issue date Feb 1, 2000
- Canon Kabushiki Kaisha
- Masami Fujimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Magnetic toner, image forming method and process cartridge
- Patent number 6,007,957
- Issue date Dec 28, 1999
- Canon Kabushiki Kaisha
- Takakuni Kobori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner and image forming method
- Patent number 5,968,701
- Issue date Oct 19, 1999
- Canon Kabushiki Kaisha
- Tsutomu Onuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner with wax component for developing electrostatic image
- Patent number 5,605,778
- Issue date Feb 25, 1997
- Canon Kabushiki Kaisha
- Tsutomu Onuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing electrostatic image
- Patent number 5,384,224
- Issue date Jan 24, 1995
- Canon Kabushiki Kaisha
- Hirohide Tanikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing electrostatic image and heat-fixing method com...
- Patent number 5,364,722
- Issue date Nov 15, 1994
- Canon Kabushiki Kaisha
- Hirohide Tanikawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
PROCESS FOR PRODUCING TONER, AND TONER
- Publication number 20080014522
- Publication date Jan 17, 2008
- Canon Kabushiki Kaisha
- Nobuyuki Okubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming method and process cartridge
- Publication number 20070059049
- Publication date Mar 15, 2007
- Canon Kabushiki Kaisha
- Tsutomu Onuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner
- Publication number 20050186497
- Publication date Aug 25, 2005
- Canon Kabushiki Kaisha
- Shuhei Moribe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Process for producing toner, and toner
- Publication number 20050186499
- Publication date Aug 25, 2005
- Canon Kabushiki Kaisha
- Nobuyuki Okubo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner
- Publication number 20050048390
- Publication date Mar 3, 2005
- Canon Kabushiki Kaisha
- Shuhei Moribe
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner
- Publication number 20050026065
- Publication date Feb 3, 2005
- Canon Kabushiki Kaisha
- Tsutomu Onuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner
- Publication number 20030198883
- Publication date Oct 23, 2003
- Kaori Hiratsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Magnetic toner and process cartridge
- Publication number 20030039908
- Publication date Feb 27, 2003
- Kaori Hiratsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Process cartridge
- Publication number 20030016955
- Publication date Jan 23, 2003
- Canon Kabushiki Kaisha
- Kaori Hiratsuka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner production process
- Publication number 20020182528
- Publication date Dec 5, 2002
- Tsuneo Nakanishi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Dry toner, image forming method and prodcess cartridge
- Publication number 20020051922
- Publication date May 2, 2002
- Katsuhisa Yamazaki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner
- Publication number 20020034702
- Publication date Mar 21, 2002
- Tsutomu Onuma
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Tsutomu Onuma

Person

Patents Grantslast 30 patents

Process for producing toner, and toner

Image forming method and process cartridge using specific toner reg...

Toner

Process for producing toner, and toner

Toner

Toner

Process cartridge

Toner production process

Magnetic toner and process cartridge

Dry toner, image forming method and process cartridge

Method using toner and developer for developing electrostatic image

Toner for developing electrostatic images and heat fixing method

Toner having hydrocarbon wax with specific ester value and hydroxyl...

Toner containing azo iron compound

Toner and developer for developing electrostatic image, process for...

Toner for developing electrostatic images

Toner and developer for developing electrostatic image, process for...

Positive-chargeable toner, image forming method and apparatus unit

Magnetic toner, image forming method and process cartridge

Toner and image forming method

Toner with wax component for developing electrostatic image

Toner for developing electrostatic image

Toner for developing electrostatic image and heat-fixing method com...

Patents Applicationslast 30 patents

PROCESS FOR PRODUCING TONER, AND TONER

Image forming method and process cartridge

Toner

Process for producing toner, and toner

Toner

Toner

Toner

Magnetic toner and process cartridge

Process cartridge

Toner production process

Dry toner, image forming method and prodcess cartridge

Toner