Ryoji Yamaguchi

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Yao-shi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Heat-sensitive color-developing composition and heat-sensitive reco...
- Patent number 8,888,906
- Issue date Nov 18, 2014
- Yamamoto Chemicals, Inc.
- Ryoji Yamaguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS

Patents Applicationslast 30 patents

Information Patent Application
HEAT-SENSITIVE COLOR-DEVELOPING COMPOSITION AND HEAT-SENSITIVE RECO...
- Publication number 20130180430
- Publication date Jul 18, 2013
- YAMAMOTO CHEMICALS, INC.
- Ryoji Yamaguchi
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS