Tsugutaka Sugahara

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Kanagawa, JP

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Patents Grantslast 30 patents

Information Patent Grant
Object to be checked for authenticity and a method for manufacturin...
- Patent number 5,756,220
- Issue date May 26, 1998
- NHK Spring Co., Ltd.
- Hidekazu Hoshino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Object to be checked for authenticity and a method for manufacturin...
- Patent number 5,601,931
- Issue date Feb 11, 1997
- NHK Spring Company, Ltd.
- Hidekazu Hoshino
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Identification system for an article having individually attached p...
- Patent number 5,442,433
- Issue date Aug 15, 1995
- NHK Spring Co., Ltd.
- Hidekazu Hoshino
- G06 - COMPUTING CALCULATING COUNTING