Masaru KUMAGAI

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Image forming apparatus having a density sensor movable in a main s...
- Patent number 9,921,533
- Issue date Mar 20, 2018
- Ricoh Company, Ltd.
- Atsushi Mori
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Image forming apparatus having a density sensor movable in a main s...
- Patent number 9,451,116
- Issue date Sep 20, 2016
- Ricoh Company, Ltd.
- Atsushi Mori
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Developing device and image forming apparatus
- Patent number 9,116,464
- Issue date Aug 25, 2015
- Ricoh Company, Ltd.
- Makoto Komatsu
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
CAR BODY INSPECTION DEVICE AND CAR BODY INSPECTION METHOD
- Publication number 20240314420
- Publication date Sep 19, 2024
- Makoto HIRAKAWA
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DISPLAY APPARATUS, DISPLAY SYSTEM, DISPLAY CONTROL METHOD, AND NON-...
- Publication number 20220208040
- Publication date Jun 30, 2022
- Masaru KUMAGAI
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Application
IMAGE FORMING APPARATUS HAVING A DENSITY SENSOR MOVABLE IN A MAIN S...
- Publication number 20160349687
- Publication date Dec 1, 2016
- Atsushi MORI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20150110514
- Publication date Apr 23, 2015
- Atsushi MORI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
- Publication number 20130202319
- Publication date Aug 8, 2013
- Makoto KOMATSU
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY