Toshikatsu Narumi

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Kawasaki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Unauthorized use preventing method for optical disks, optical disk...
- Patent number 5,982,886
- Issue date Nov 9, 1999
- Fujitsu Limited
- Satoshi Itami
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Unauthorized use prevention method for optical disks, optical disk...
- Patent number 5,418,852
- Issue date May 23, 1995
- Fujitsu Limited
- Satoshi Itami
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus for making music database and retrieval apparatus for suc...
- Patent number 5,402,339
- Issue date Mar 28, 1995
- Fujitsu Limited
- Kazuo Nakashima
- G06 - COMPUTING CALCULATING COUNTING