Koh Ohnuma

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Shizuoka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Toner, toner stored unit, image forming apparatus, and image formin...
- Patent number 9,880,479
- Issue date Jan 30, 2018
- Ricoh Company, Ltd.
- Hideyuki Santoh
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner, developer and developer containing unit
- Patent number 9,753,387
- Issue date Sep 5, 2017
- Ricoh Company, Ltd.
- Shin Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner, developer, image forming apparatus, and process cartridge
- Patent number 9,639,016
- Issue date May 2, 2017
- Ricoh Company, Ltd.
- Tsuyoshi Sugimoto
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
TONER, TONER STORAGE UNIT, IMAGE FORMING APPARATUS, AND METHOD FOR...
- Publication number 20170363980
- Publication date Dec 21, 2017
- Kohsuke NAGATA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER, TONER STORED UNIT, IMAGE FORMING APPARATUS, AND IMAGE FORMIN...
- Publication number 20170199476
- Publication date Jul 13, 2017
- Hideyuki SANTOH
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER, DEVELOPER AND DEVELOPER CONTAINING UNIT
- Publication number 20160349644
- Publication date Dec 1, 2016
- Shin HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER, DEVELOPER, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
- Publication number 20160259257
- Publication date Sep 8, 2016
- Tsuyoshi SUGIMOTO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...