Hachiroh Tosaka

Person

Sunto-gun, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Toner, and image forming method and process cartridge using the toner
- Patent number 9,256,147
- Issue date Feb 9, 2016
- Ricoh Company, Ltd.
- Hideyuki Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner, and image forming method and process cartridge using the toner
- Patent number 8,372,569
- Issue date Feb 12, 2013
- Ricoh Company, Ltd.
- Hideyuki Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner, developer, container containing toner, process, cartridge, i...
- Patent number 7,250,240
- Issue date Jul 31, 2007
- Ricoh Company, Ltd.
- Hachiroh Tosaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image formation method, electrophotographic toners, and printed matter
- Patent number 6,737,210
- Issue date May 18, 2004
- Ricoh Company, Ltd.
- Osamu Uchinokura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner, external additive therefor and image forming method using th...
- Patent number 6,503,676
- Issue date Jan 7, 2003
- Ricoh Company, Ltd.
- Hiroshi Yamashita
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Image formation method, electrophotographic toners, and printed matter
- Patent number 6,432,589
- Issue date Aug 13, 2002
- Ricoh Company, Ltd.
- Osamu Uchinokura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner for developing electrostatic images
- Patent number 6,004,715
- Issue date Dec 21, 1999
- Ricoh Company, Ltd.
- Masanori Suzuki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
One component developer developing method and dry toner therefor
- Patent number 5,882,832
- Issue date Mar 16, 1999
- Ricoh Company, Ltd.
- Hachiroh Tosaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
TONER, AND IMAGE FORMING METHOD AND PROCESS CARTRIDGE USING THE TONER
- Publication number 20130122417
- Publication date May 16, 2013
- XEIKON
- Hideyuki Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner, and image forming method and process cartridge using the toner
- Publication number 20080124636
- Publication date May 29, 2008
- Hideyuki Yamaguchi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner, developer, container containing toner, process cartridge, im...
- Publication number 20050014081
- Publication date Jan 20, 2005
- Hachiroh Tosaka
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Image formation method, electrophotographic toners, and printed matter
- Publication number 20030087169
- Publication date May 8, 2003
- Ricoh Company, Ltd.
- Osamu Uchinokura
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
Toner, external additive therefor and image forming method using th...
- Publication number 20010051270
- Publication date Dec 13, 2001
- Ricoh Company, Ltd.
- Hiroshi Yamashita
- B82 - NANO-TECHNOLOGY

Hachiroh Tosaka

Person

Patents Grantslast 30 patents

Toner, and image forming method and process cartridge using the toner

Toner, and image forming method and process cartridge using the toner

Toner, developer, container containing toner, process, cartridge, i...

Image formation method, electrophotographic toners, and printed matter

Toner, external additive therefor and image forming method using th...

Image formation method, electrophotographic toners, and printed matter

Toner for developing electrostatic images

One component developer developing method and dry toner therefor

Patents Applicationslast 30 patents

TONER, AND IMAGE FORMING METHOD AND PROCESS CARTRIDGE USING THE TONER

Toner, and image forming method and process cartridge using the toner

Toner, developer, container containing toner, process cartridge, im...

Image formation method, electrophotographic toners, and printed matter

Toner, external additive therefor and image forming method using th...