Takaaki Fujiyoshi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
System and process for reading hologram code, hologram and card con...
- Patent number 5,565,667
- Issue date Oct 15, 1996
- Dai Nippon Printing Co., Ltd.
- Norio Takahashi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
System and process for reading hologram code, hologram and card con...
- Patent number 5,444,225
- Issue date Aug 22, 1995
- Dai Nippon Printing Co., Ltd.
- Norio Takahashi
- G06 - COMPUTING CALCULATING COUNTING