Hiroki Nakahata

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Stationary game machine
- Patent number 5,346,398
- Issue date Sep 13, 1994
- Namco Ltd.
- Hiroki Nakahata
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Game machine
- Patent number 5,039,094
- Issue date Aug 13, 1991
- Namco, Ltd.
- Hiroyuki Kobayashi
- G07 - CHECKING-DEVICES