Kei HASEGAWA

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Hyogo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus, image forming method, and data recording m...
- Patent number 11,314,184
- Issue date Apr 26, 2022
- Ricoh Company, Ltd.
- Kei Hasegawa
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus including an image density detector of half...
- Patent number 10,281,862
- Issue date May 7, 2019
- Ricoh Company, Ltd.
- Shinji Aoki
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Toner container, process cartridge, and image forming apparatus
- Patent number 9,201,393
- Issue date Dec 1, 2015
- Ricoh Company, Ltd.
- Yuusuke Furuichi
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
TONER SUPPLY DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20240319645
- Publication date Sep 26, 2024
- Kei HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND DATA RECORDING M...
- Publication number 20210349410
- Publication date Nov 11, 2021
- RICOH COMPANY, LTD.
- Kei HASEGAWA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20180267452
- Publication date Sep 20, 2018
- Shinji AOKI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
TONER CONTAINER, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS
- Publication number 20150063865
- Publication date Mar 5, 2015
- Yuusuke FURUICHI
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY