Hiroshi Kato

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Saitama-Ken, JP

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for formation of visual sense effect
- Patent number 6,138,393
- Issue date Oct 31, 2000
- Rikagaku Kenkyusho
- Masanori Idesawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Apparatus for formation of visual sense effect
- Patent number 6,134,818
- Issue date Oct 24, 2000
- Rikagaku Kenkyusho
- Masanori Idesawa
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS