Shiro Atsumi

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
IC module and a data carrier employing the same
- Patent number 5,736,781
- Issue date Apr 7, 1998
- Oki Electric Industry Co., Ltd.
- Shiro Atsumi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
IC card having a built-in semiconductor integrated circuit device
- Patent number 5,544,014
- Issue date Aug 6, 1996
- Oki Electric Industry Co., Ltd.
- Shiro Atsumi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Secure IC card system with reusable prototype IC card
- Patent number 5,442,165
- Issue date Aug 15, 1995
- Oki Electric Industry Co., Ltd.
- Shiro Atsumi
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
IC cards and information storage circuit therefor
- Patent number 5,034,597
- Issue date Jul 23, 1991
- Oki Electric Industry Co., Ltd.
- Shiro Atsumi
- G06 - COMPUTING CALCULATING COUNTING