Kohji Tokuyama

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Liquid discharge apparatus
- Patent number 11,427,013
- Issue date Aug 30, 2022
- Ricoh Company, Ltd.
- Kohji Tokuyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Device and method for detecting state of discharged liquid droplet...
- Patent number 9,347,881
- Issue date May 24, 2016
- Ricoh Company, Ltd.
- Hiroshi Andoh
- G01 - MEASURING TESTING
Information Patent Grant
Roller replacement auxiliary tool of a fixing unit that protects a...
- Patent number 8,611,791
- Issue date Dec 17, 2013
- Ricoh Company, Ltd.
- Kohji Tokuyama
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
LIQUID DISCHARGE APPARATUS
- Publication number 20210260889
- Publication date Aug 26, 2021
- RICOH COMPANY, LTD.
- Kohji Tokuyama
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20170153591
- Publication date Jun 1, 2017
- RICOH COMPANY, LTD.
- Makoto NAKURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
IMAGE FORMING APPARATUS
- Publication number 20150378297
- Publication date Dec 31, 2015
- RICOH COMPANY, LTD.
- Makoto NAKURA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Application
DEVICE AND METHOD FOR DETECTING STATE OF DISCHARGED LIQUID DROPLET...
- Publication number 20150177136
- Publication date Jun 25, 2015
- RICOH COMPANY, LTD.
- Hiroshi Andoh
- G01 - MEASURING TESTING
Information Patent Application
LIQUID DROP EJECTION STATE DETECTION DEVICE AND IMAGE FORMATION APP...
- Publication number 20150009252
- Publication date Jan 8, 2015
- RICOH COMPANY, LTD.
- Hiroshi Andoh
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Application
ROLLER REPLACEMENT AUXILIARY TOOL OF FIXING UNIT
- Publication number 20110188883
- Publication date Aug 4, 2011
- Kohji TOKUYAMA
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY