Ryoichi Koizumi

Person

Yokohama, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Liquid ejection head and liquid ejection method
- Patent number 7,967,413
- Issue date Jun 28, 2011
- Canon Kabushiki Kaisha
- Ryoichi Koizumi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid jet recording head having controller for controlling tempera...
- Patent number 6,598,952
- Issue date Jul 29, 2003
- Canon Kabushiki Kaisha
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Recording apparatus having abnormality determination based on tempe...
- Patent number 6,505,907
- Issue date Jan 14, 2003
- Canon Kabushiki Kaisha
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Substrate having a built-in temperature detecting element, and ink...
- Patent number 6,234,599
- Issue date May 22, 2001
- Canon Kabushiki Kaisha
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet recording head having an electric discharge path for releas...
- Patent number 6,074,041
- Issue date Jun 13, 2000
- Canon Kabushiki Kaisha
- Yoshiyuki Imanaka
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Printing head, and printer and printing method using the printing head
- Patent number 5,790,140
- Issue date Aug 4, 1998
- Canon Kabushiki Kaisha
- Ryoichi Koizumi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Substrate having a common collector region and being usable in a li...
- Patent number 5,774,147
- Issue date Jun 30, 1998
- Canon Kabushiki Kaisha
- Asao Saito
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet recording head with adjustable temperature sensor and ink j...
- Patent number 5,760,797
- Issue date Jun 2, 1998
- Canon Kabushiki Kaisha
- Ryoichi Koizumi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet recording head having reserve functional devices
- Patent number 5,726,696
- Issue date Mar 10, 1998
- Canon Kabushiki Kaisha
- Asao Saito
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Recording head which detects temperature of an element chip and cor...
- Patent number 5,696,543
- Issue date Dec 9, 1997
- Canon Kabushiki Kaisha
- Ryoichi Koizumi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Recording apparatus to which recording head is detachably mounted
- Patent number 5,638,097
- Issue date Jun 10, 1997
- Canon Kabushiki Kaisha
- Yoshiaki Takayanagi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Multilayer device having integral functional element for use with a...
- Patent number 5,570,119
- Issue date Oct 29, 1996
- Canon Kabushiki Kaisha
- Asao Saito
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet recording head and apparatus having a protective member for...
- Patent number 5,491,505
- Issue date Feb 13, 1996
- Canon Kabushiki Kaisha
- Toshio Suzuki
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid jet recording apparatus
- Patent number 5,488,395
- Issue date Jan 30, 1996
- Canon Kabushiki Kaisha
- Yoshiaki Takayanagi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid jet recording apparatus
- Patent number 5,485,182
- Issue date Jan 16, 1996
- Canon Kabushiki Kaisha
- Yoshiaki Takayanagi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Remaining ink detecting device and ink jet head cartridge
- Patent number 5,329,304
- Issue date Jul 12, 1994
- Canon Kabushiki Kaisha
- Ryoichi Koizumi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Liquid jet recording head having a substrate with minimized electro...
- Patent number 5,212,503
- Issue date May 18, 1993
- Canon Kabushiki Kaisha
- Asao Saito
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink jet substrate including plural temperature sensors and heaters
- Patent number 5,175,565
- Issue date Dec 29, 1992
- Canon Kabushiki Kaisha
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Recording apparatus
- Patent number 5,043,748
- Issue date Aug 27, 1991
- Canon Kabushiki Kaisha
- Akira Katayama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Ink jet recording device with thermal energy adjustment
- Patent number 5,017,948
- Issue date May 21, 1991
- Canon Kabushiki Kaisha
- Ryoichi Koizumi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
LIQUID EJECTION HEAD AND LIQUID EJECTION METHOD
- Publication number 20080291244
- Publication date Nov 27, 2008
- Canon Kabushiki Kaisha
- Ryoichi Koizumi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
RECORDING APPARATUS HAVING ABNORMALITY DETERMINATION BASED ON TEMPE...
- Publication number 20020149657
- Publication date Oct 17, 2002
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
Liquid jet recording substrate, recording head and apparatus using...
- Publication number 20010004263
- Publication date Jun 21, 2001
- Hiroyuki Ishinaga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Ryoichi Koizumi

Person

Patents Grantslast 30 patents

Liquid ejection head and liquid ejection method

Liquid jet recording head having controller for controlling tempera...

Recording apparatus having abnormality determination based on tempe...

Substrate having a built-in temperature detecting element, and ink...

Ink jet recording head having an electric discharge path for releas...

Printing head, and printer and printing method using the printing head

Substrate having a common collector region and being usable in a li...

Ink jet recording head with adjustable temperature sensor and ink j...

Ink jet recording head having reserve functional devices

Recording head which detects temperature of an element chip and cor...

Recording apparatus to which recording head is detachably mounted

Multilayer device having integral functional element for use with a...

Ink jet recording head and apparatus having a protective member for...

Liquid jet recording apparatus

Liquid jet recording apparatus

Remaining ink detecting device and ink jet head cartridge

Liquid jet recording head having a substrate with minimized electro...

Ink jet substrate including plural temperature sensors and heaters

Recording apparatus

Ink jet recording device with thermal energy adjustment

Patents Applicationslast 30 patents

LIQUID EJECTION HEAD AND LIQUID EJECTION METHOD

RECORDING APPARATUS HAVING ABNORMALITY DETERMINATION BASED ON TEMPE...

Liquid jet recording substrate, recording head and apparatus using...