Hiroshi TOHMATSU

Person

Shizuoka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Carrier, developer, image forming apparatus, developer stored unit,...
- Patent number 10,234,783
- Issue date Mar 19, 2019
- Ricoh Company, Ltd.
- Koichi Sakata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developing device and image forming apparatus
- Patent number 10,197,948
- Issue date Feb 5, 2019
- Ricoh Company, Ltd.
- Hitoshi Iwatsuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Electrostatic latent image developing white developer, image formin...
- Patent number 10,067,438
- Issue date Sep 4, 2018
- Ricoh Company, Ltd.
- Yoshihiro Murasawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier, two-component developer, supplemental developer, image for...
- Patent number 9,519,234
- Issue date Dec 13, 2016
- Ricoh Company, Ltd.
- Hiroyuki Kishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for developing an electrostatic latent image, developer and...
- Patent number 9,304,427
- Issue date Apr 5, 2016
- Ricoh Company, Ltd.
- Hitoshi Iwatsuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for two-component developer, two-component developer using...
- Patent number 9,298,119
- Issue date Mar 29, 2016
- Ricoh Company, Ltd.
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Replenishing developer housing container and image forming apparatus
- Patent number 9,261,817
- Issue date Feb 16, 2016
- Ricoh Company, Ltd.
- Hitoshi Iwatsuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for two-component developer, two-component developer using...
- Patent number 9,229,347
- Issue date Jan 5, 2016
- Ricoh Company, Ltd.
- Hiroyuki Kishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for developing electrostatic latent image, and electrostati...
- Patent number 9,146,487
- Issue date Sep 29, 2015
- Ricoh Company, Ltd.
- Toyoshi Sawada
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming method and image forming apparatus
- Patent number 8,918,025
- Issue date Dec 23, 2014
- Ricoh Company, Ltd.
- Hiroshi Tohmatsu
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Carrier for developing electrostatic latent image, tow-component de...
- Patent number 8,916,325
- Issue date Dec 23, 2014
- Ricoh Company, Ltd.
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for electrostatic latent image developer, electrostatic lat...
- Patent number 8,778,587
- Issue date Jul 15, 2014
- Ricoh Company, Ltd.
- Kimitoshi Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Latent electrostatic image developing carrier, process cartridge an...
- Patent number 8,663,892
- Issue date Mar 4, 2014
- Ricoh Company, Ltd.
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier, developer, method of manufacturing carrier, developer cont...
- Patent number 8,652,735
- Issue date Feb 18, 2014
- Ricoh Company, Ltd.
- Koichi Sakata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Contact developing method, image forming apparatus, and process car...
- Patent number 8,652,738
- Issue date Feb 18, 2014
- Ricoh Company, Ltd.
- Kimitoshi Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for developing electrostatic latent image and developer
- Patent number 8,637,218
- Issue date Jan 28, 2014
- Ricoh Company, Ltd.
- Koichi Sakata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Carrier for developing electrostatic latent image, and two-componen...
- Patent number 8,512,928
- Issue date Aug 20, 2013
- Rocoh Company, Ltd.
- Hiroyuki Kishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Thermal transfer recording medium
- Patent number 8,404,321
- Issue date Mar 26, 2013
- Ricoh Company, Ltd.
- Hiroshi Tohmatsu
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermosensitive recording material
- Patent number 8,283,287
- Issue date Oct 9, 2012
- Ricoh Company, Ltd.
- Hideo Aihara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermosensitive recording medium and recording method
- Patent number 8,227,379
- Issue date Jul 24, 2012
- Ricoh Company, Ltd.
- Shinji Okada
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermosensitive recording material and recording method using the same
- Patent number 7,985,711
- Issue date Jul 26, 2011
- Ricoh Company, Ltd.
- Hiroshi Tohmatsu
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal image transfer recording medium
- Patent number 5,952,103
- Issue date Sep 14, 1999
- Ricoh Company, Ltd.
- Keiichi Shiokawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal image transfer recording medium
- Patent number 5,773,153
- Issue date Jun 30, 1998
- Ricoh Company, Ltd.
- Keiichi Shiokawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
CARRIER, DEVELOPER, IMAGE FORMING APPARATUS, DEVELOPER STORED UNIT,...
- Publication number 20180120724
- Publication date May 3, 2018
- Koichi SAKATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
ELECTROSTATIC LATENT IMAGE DEVELOPING WHITE DEVELOPER, IMAGE FORMIN...
- Publication number 20170329247
- Publication date Nov 16, 2017
- Yoshihiro MURASAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20170248871
- Publication date Aug 31, 2017
- Hitoshi IWATSUKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER, TWO-COMPONENT DEVELOPER, SUPPLEMENTAL DEVELOPER, IMAGE FOR...
- Publication number 20150153665
- Publication date Jun 4, 2015
- Hiroyuki Kishida
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
REPLENISHING DEVELOPER HOUSING CONTAINER AND IMAGE FORMING APPARATUS
- Publication number 20140348552
- Publication date Nov 27, 2014
- RICOH COMPANY, LTD.
- Hitoshi Iwatsuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER USING...
- Publication number 20140248557
- Publication date Sep 4, 2014
- Shigenori YAGUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER USING...
- Publication number 20140227638
- Publication date Aug 14, 2014
- Hiroyuki KISHIDA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER FOR TWO-COMPONENT DEVELOPER, ELECTROSTATIC LATENT IMAGE DEV...
- Publication number 20140080052
- Publication date Mar 20, 2014
- Shigenori YAGUCHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER FOR DEVELOPING AN ELECTROSTATIC LATENT IMAGE, DEVELOPER AND...
- Publication number 20140072910
- Publication date Mar 13, 2014
- Hitoshi IWATSUKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, AND ELECTROSTATI...
- Publication number 20140023966
- Publication date Jan 23, 2014
- Toyoshi SAWADA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, TOW-COMPONENT DE...
- Publication number 20130252169
- Publication date Sep 26, 2013
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER FOR ELECTROSTATIC LATENT IMAGE DEVELOPER, ELECTROSTATIC LAT...
- Publication number 20130101930
- Publication date Apr 25, 2013
- Kimitoshi Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
LATENT ELECTROSTATIC IMAGE DEVELOPING CARRIER, PROCESS CARTRIDGE AN...
- Publication number 20130065171
- Publication date Mar 14, 2013
- Shigenori Yaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE AND DEVELOPER
- Publication number 20130065175
- Publication date Mar 14, 2013
- Koichi Sakata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS
- Publication number 20130016999
- Publication date Jan 17, 2013
- Hiroshi Tohmatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, AND TWO-COMPONEN...
- Publication number 20120064451
- Publication date Mar 15, 2012
- Hiroyuki Kishida
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CARRIER, DEVELOPER, METHOD OF MANUFACTURING CARRIER, DEVELOPER CONT...
- Publication number 20120057898
- Publication date Mar 8, 2012
- Koichi Sakata
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
CONTACT DEVELOPING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CAR...
- Publication number 20120058423
- Publication date Mar 8, 2012
- Kimitoshi Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Thermal Transfer Recording Medium
- Publication number 20100297369
- Publication date Nov 25, 2010
- RICOH COMPANY, LTD.
- Hiroshi Tohmatsu
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
THERMOSENSITIVE RECORDING MEDIUM AND RECORDING METHOD
- Publication number 20090215622
- Publication date Aug 27, 2009
- RICOH COMPANY, LTD.
- Shinji OKADA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
THERMOSENSITIVE RECORDING MATERIAL
- Publication number 20090075817
- Publication date Mar 19, 2009
- RICOH COMPANY, LTD.
- Hideo AIHARA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
THERMOSENSITIVE RECORDING MATERIAL AND RECORDING METHOD USING THE SAME
- Publication number 20080182749
- Publication date Jul 31, 2008
- Hiroshi TOHMATSU
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Hiroshi TOHMATSU

Person

Patents Grantslast 30 patents

Carrier, developer, image forming apparatus, developer stored unit,...

Developing device and image forming apparatus

Electrostatic latent image developing white developer, image formin...

Carrier, two-component developer, supplemental developer, image for...

Carrier for developing an electrostatic latent image, developer and...

Carrier for two-component developer, two-component developer using...

Replenishing developer housing container and image forming apparatus

Carrier for two-component developer, two-component developer using...

Carrier for developing electrostatic latent image, and electrostati...

Image forming method and image forming apparatus

Carrier for developing electrostatic latent image, tow-component de...

Carrier for electrostatic latent image developer, electrostatic lat...

Latent electrostatic image developing carrier, process cartridge an...

Carrier, developer, method of manufacturing carrier, developer cont...

Contact developing method, image forming apparatus, and process car...

Carrier for developing electrostatic latent image and developer

Carrier for developing electrostatic latent image, and two-componen...

Thermal transfer recording medium

Thermosensitive recording material

Thermosensitive recording medium and recording method

Thermosensitive recording material and recording method using the same

Thermal image transfer recording medium

Thermal image transfer recording medium

Patents Applicationslast 30 patents

CARRIER, DEVELOPER, IMAGE FORMING APPARATUS, DEVELOPER STORED UNIT,...

ELECTROSTATIC LATENT IMAGE DEVELOPING WHITE DEVELOPER, IMAGE FORMIN...

DEVELOPING DEVICE AND IMAGE FORMING APPARATUS

CARRIER, TWO-COMPONENT DEVELOPER, SUPPLEMENTAL DEVELOPER, IMAGE FOR...

REPLENISHING DEVELOPER HOUSING CONTAINER AND IMAGE FORMING APPARATUS

CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER USING...

CARRIER FOR TWO-COMPONENT DEVELOPER, TWO-COMPONENT DEVELOPER USING...

CARRIER FOR TWO-COMPONENT DEVELOPER, ELECTROSTATIC LATENT IMAGE DEV...

CARRIER FOR DEVELOPING AN ELECTROSTATIC LATENT IMAGE, DEVELOPER AND...

CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, AND ELECTROSTATI...

CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, TOW-COMPONENT DE...

CARRIER FOR ELECTROSTATIC LATENT IMAGE DEVELOPER, ELECTROSTATIC LAT...

LATENT ELECTROSTATIC IMAGE DEVELOPING CARRIER, PROCESS CARTRIDGE AN...

CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE AND DEVELOPER

IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS

CARRIER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE, AND TWO-COMPONEN...

CARRIER, DEVELOPER, METHOD OF MANUFACTURING CARRIER, DEVELOPER CONT...

CONTACT DEVELOPING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CAR...

Thermal Transfer Recording Medium

THERMOSENSITIVE RECORDING MEDIUM AND RECORDING METHOD

THERMOSENSITIVE RECORDING MATERIAL

THERMOSENSITIVE RECORDING MATERIAL AND RECORDING METHOD USING THE SAME