Kazuhiko UMEMURA

Person

Shizuoka, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Ink, ink accommodating unit, printing device and printing method
- Patent number 11,578,220
- Issue date Feb 14, 2023
- Ricoh Company, Ltd.
- Tomohiro Nakagawa
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Method of printing including applying a processing fluid and white...
- Patent number 11,548,294
- Issue date Jan 10, 2023
- Ricoh Company, Ltd.
- Takuya Saiga
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Ink, ink set, ink container, image forming method, and image formin...
- Patent number 11,499,062
- Issue date Nov 15, 2022
- Ricoh Company, Ltd.
- Hiroshi Gotou
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ink, ink set, ink container, image forming method, image forming ap...
- Patent number 11,274,221
- Issue date Mar 15, 2022
- Ricoh Company, Ltd.
- Kazuhiko Umemura
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ink and printing method
- Patent number 11,186,737
- Issue date Nov 30, 2021
- Ricoh Company, Ltd.
- Tomohiro Nakagawa
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ink, ink container, inkjet recording device, and recording method
- Patent number 11,059,983
- Issue date Jul 13, 2021
- Ricoh Company, Ltd.
- Akihiko Matsuyama
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Grant
Ink, ink container, and inkjet recording device
- Patent number 10,414,932
- Issue date Sep 17, 2019
- Ricoh Company, Ltd.
- Kazuhiko Umemura
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Image forming method and image forming apparatus
- Patent number 10,328,722
- Issue date Jun 25, 2019
- Ricoh Company, Ltd.
- Keita Katoh
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Developer container, developer supplying device, and image forming...
- Patent number 8,195,070
- Issue date Jun 5, 2012
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Developer container, developer supplying device, and image forming...
- Patent number 8,005,406
- Issue date Aug 23, 2011
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Developer container, developer supplying device, and image forming...
- Patent number 7,835,673
- Issue date Nov 16, 2010
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Toner, developer, image developer and image forming apparatus
- Patent number 7,749,674
- Issue date Jul 6, 2010
- Ricoh Company, Ltd.
- Hideki Sugiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer container, developer supplying device, and image forming...
- Patent number 7,697,870
- Issue date Apr 13, 2010
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
External additive for toner for electrophotography, toner for elect...
- Patent number 7,611,815
- Issue date Nov 3, 2009
- Ricoh Company, Ltd.
- Hideki Sugiura
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Developer container, developer supplying device, and image forming...
- Patent number 7,519,317
- Issue date Apr 14, 2009
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Developer container, developer supplying device, and image forming...
- Patent number 7,480,476
- Issue date Jan 20, 2009
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
External additives for electrophotographic toner, electrophotograph...
- Patent number 7,413,838
- Issue date Aug 19, 2008
- Ricoh Company, Ltd.
- Hideki Sugiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus using a toner container and a process cartr...
- Patent number 7,398,038
- Issue date Jul 8, 2008
- Ricoh Company, Ltd.
- Kiyonori Tsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Developer container, developer supplying device, and image forming...
- Patent number 7,321,744
- Issue date Jan 22, 2008
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Toner, developer, image developer and image forming apparatus
- Patent number 7,288,353
- Issue date Oct 30, 2007
- Ricoh Company, Ltd.
- Hideki Sugiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for electrophotography and image forming apparatus
- Patent number 7,258,959
- Issue date Aug 21, 2007
- Ricoh Company, Ltd.
- Shinya Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus and process cartridge removably mounted the...
- Patent number 7,212,767
- Issue date May 1, 2007
- Ricoh Company, Ltd.
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for electrophotography, and image forming process, process ca...
- Patent number 7,172,844
- Issue date Feb 6, 2007
- Ricoh Company, Ltd.
- Kazuhiko Umemura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner, developer, image forming apparatus, process cartridge and im...
- Patent number 7,169,525
- Issue date Jan 30, 2007
- Ricoh Company, Ltd.
- Hideki Sugiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing a latent electrostatic image, developer using...
- Patent number 7,169,522
- Issue date Jan 30, 2007
- Ricoh Company, Ltd.
- Hideki Sugiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing electrostatic image, developer, process for fo...
- Patent number 7,163,773
- Issue date Jan 16, 2007
- Ricoh Company, Ltd.
- Hideki Sugiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus using installable process cartridge, method...
- Patent number 7,136,610
- Issue date Nov 14, 2006
- Ricoh Company, Ltd.
- Yuji Arai
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Powder conveying device and image forming apparatus using the same
- Patent number 7,076,192
- Issue date Jul 11, 2006
- Ricoh Company, Ltd.
- Kiyonori Tsuda
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Image forming apparatus using a user installable process cartridge,...
- Patent number 7,024,133
- Issue date Apr 4, 2006
- Ricoh Co., Ltd.
- Hiroyuki Nagashima
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner feeder, toner, and electrophotographic image forming apparatu...
- Patent number 7,024,140
- Issue date Apr 4, 2006
- Ricoh Company, Ltd.
- Minoru Masuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
PRINTING METHOD, PRINTING APPARATUS, AND PRINTED MATTER
- Publication number 20230331000
- Publication date Oct 19, 2023
- RICOH COMPANY, LTD.
- Sei Yamamoto
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
WHITE INK, NON-WHITE INK, INK SET, PRINTING SET, PRINTING METHOD, A...
- Publication number 20230220226
- Publication date Jul 13, 2023
- RICOH COMPANY, LTD.
- Hiroki HAGIWARA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
IMAGE PRINTING METHOD, IMAGE PRINTING APPARATUS, AND PRINTED MATTER
- Publication number 20230051878
- Publication date Feb 16, 2023
- Sei YAMAMOTO
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
INK AND IMAGE FORMING METHOD
- Publication number 20220177718
- Publication date Jun 9, 2022
- RICOH COMPANY, LTD.
- Kazuhiko Umemura
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PROCESSING FLUID, METHOD OF PRODUCING PRINTED MATTER, AND DEVICE OF...
- Publication number 20220169034
- Publication date Jun 2, 2022
- RICOH COMPANY, LTD.
- Hiroki HAGIWARA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
METHOD OF PRINTING AND DEVICE FOR PRINTING
- Publication number 20220118774
- Publication date Apr 21, 2022
- RICOH COMPANY, LTD.
- Takuya SAIGA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PROCESSING FLUID, SET OF PROCESSING FLUID AND INK, PRINTING METHOD,...
- Publication number 20220056298
- Publication date Feb 24, 2022
- RICOH COMPANY, LTD.
- Kazuhiko Umemura
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
PRINTING METHOD, PRINTING APPARATUS, AND PRINTED MATTER
- Publication number 20220056299
- Publication date Feb 24, 2022
- RICOH COMPANY, LTD.
- Sei Yamamoto
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INK, INK ACCOMMODATING UNIT, PRINTING DEVICE AND PRINTING METHOD
- Publication number 20210292578
- Publication date Sep 23, 2021
- RICOH COMPANY, LTD.
- Tomohiro NAKAGAWA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
LIQUID COMPOSITION FOR SURFACE TREATMENT, PRINTING METHOD, AND PRIN...
- Publication number 20200399496
- Publication date Dec 24, 2020
- Yuutaroh NONAKA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INK AND PRINTING METHOD
- Publication number 20200385592
- Publication date Dec 10, 2020
- Tomohiro NAKAGAWA
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Application
INVENTION IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, IMAGE FORM...
- Publication number 20200262228
- Publication date Aug 20, 2020
- Hiroki HAGIWARA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
INK, INK SET, INK CONTAINER, IMAGE FORMING METHOD, AND IMAGE FORMIN...
- Publication number 20200157366
- Publication date May 21, 2020
- Hiroshi GOTOU
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
INK, INK CONTAINER, INKJET RECORDING DEVICE, AND RECORDING METHOD
- Publication number 20190249020
- Publication date Aug 15, 2019
- Akihiko MATSUYAMA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
INK, INK SET, INK CONTAINER, IMAGE FORMING METHOD, IMAGE FORMING AP...
- Publication number 20190185690
- Publication date Jun 20, 2019
- Kazuhiko UMEMURA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS
- Publication number 20180339525
- Publication date Nov 29, 2018
- Keita KATOH
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
INK, INK CONTAINER, AND INKJET RECORDING DEVICE
- Publication number 20170107389
- Publication date Apr 20, 2017
- Kazuhiko UMEMURA
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
- Publication number 20110249991
- Publication date Oct 13, 2011
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
- Publication number 20110026973
- Publication date Feb 3, 2011
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
- Publication number 20090175660
- Publication date Jul 9, 2009
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
- Publication number 20080286013
- Publication date Nov 20, 2008
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
- Publication number 20080003021
- Publication date Jan 3, 2008
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER, DEVELOPER, IMAGE DEVELOPER AND IMAGE FORMING APPARATUS
- Publication number 20070275318
- Publication date Nov 29, 2007
- Hideki Sugiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Developer container, developer supplying device, and image forming...
- Publication number 20070177905
- Publication date Aug 2, 2007
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE REMOVABLY MOUNTED THE...
- Publication number 20070166074
- Publication date Jul 19, 2007
- Hiroshi Hosokawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming method, image forming apparatus, and process cartridge
- Publication number 20060210908
- Publication date Sep 21, 2006
- Kazuhiko Umemura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Electrophotography and image forming apparatus
- Publication number 20060068313
- Publication date Mar 30, 2006
- Shinya Nakayama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner, developer, image forming apparatus, process cartridge and im...
- Publication number 20060040194
- Publication date Feb 23, 2006
- Hideki Sugiura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image forming apparatus using a toner container and a process cartr...
- Publication number 20050226656
- Publication date Oct 13, 2005
- Kiyonori Tsuda
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Method and apparatus for electrophotographic image forming capable...
- Publication number 20050191574
- Publication date Sep 1, 2005
- Toshio Koike
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Kazuhiko UMEMURA

Person

Patents Grantslast 30 patents

Ink, ink accommodating unit, printing device and printing method

Method of printing including applying a processing fluid and white...

Ink, ink set, ink container, image forming method, and image formin...

Ink, ink set, ink container, image forming method, image forming ap...

Ink and printing method

Ink, ink container, inkjet recording device, and recording method

Ink, ink container, and inkjet recording device

Image forming method and image forming apparatus

Developer container, developer supplying device, and image forming...

Developer container, developer supplying device, and image forming...

Developer container, developer supplying device, and image forming...

Toner, developer, image developer and image forming apparatus

Developer container, developer supplying device, and image forming...

External additive for toner for electrophotography, toner for elect...

Developer container, developer supplying device, and image forming...

Developer container, developer supplying device, and image forming...

External additives for electrophotographic toner, electrophotograph...

Image forming apparatus using a toner container and a process cartr...

Developer container, developer supplying device, and image forming...

Toner, developer, image developer and image forming apparatus

Toner for electrophotography and image forming apparatus

Image forming apparatus and process cartridge removably mounted the...

Toner for electrophotography, and image forming process, process ca...

Toner, developer, image forming apparatus, process cartridge and im...

Toner for developing a latent electrostatic image, developer using...

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

Image forming apparatus using installable process cartridge, method...

Powder conveying device and image forming apparatus using the same

Image forming apparatus using a user installable process cartridge,...

Toner feeder, toner, and electrophotographic image forming apparatu...

Patents Applicationslast 30 patents

PRINTING METHOD, PRINTING APPARATUS, AND PRINTED MATTER

WHITE INK, NON-WHITE INK, INK SET, PRINTING SET, PRINTING METHOD, A...

IMAGE PRINTING METHOD, IMAGE PRINTING APPARATUS, AND PRINTED MATTER

INK AND IMAGE FORMING METHOD

PROCESSING FLUID, METHOD OF PRODUCING PRINTED MATTER, AND DEVICE OF...

METHOD OF PRINTING AND DEVICE FOR PRINTING

PROCESSING FLUID, SET OF PROCESSING FLUID AND INK, PRINTING METHOD,...

PRINTING METHOD, PRINTING APPARATUS, AND PRINTED MATTER

INK, INK ACCOMMODATING UNIT, PRINTING DEVICE AND PRINTING METHOD

LIQUID COMPOSITION FOR SURFACE TREATMENT, PRINTING METHOD, AND PRIN...

INK AND PRINTING METHOD

INVENTION IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, IMAGE FORM...

INK, INK SET, INK CONTAINER, IMAGE FORMING METHOD, AND IMAGE FORMIN...

INK, INK CONTAINER, INKJET RECORDING DEVICE, AND RECORDING METHOD

INK, INK SET, INK CONTAINER, IMAGE FORMING METHOD, IMAGE FORMING AP...

IMAGE FORMING METHOD AND IMAGE FORMING APPARATUS

INK, INK CONTAINER, AND INKJET RECORDING DEVICE

DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...

DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...

DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...

DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...

DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...

TONER, DEVELOPER, IMAGE DEVELOPER AND IMAGE FORMING APPARATUS

Developer container, developer supplying device, and image forming...

IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE REMOVABLY MOUNTED THE...

Image forming method, image forming apparatus, and process cartridge

Electrophotography and image forming apparatus

Toner, developer, image forming apparatus, process cartridge and im...

Image forming apparatus using a toner container and a process cartr...

Method and apparatus for electrophotographic image forming capable...