Atsushi Fujioka

Person

Tokyo, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Signature generating apparatus, signature verifying apparatus, and...
- Patent number 8,458,478
- Issue date Jun 4, 2013
- Nippon Telegraph and Telephone Corporation
- Koutarou Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Verifiable anonymous channel
- Patent number 6,937,728
- Issue date Aug 30, 2005
- Nippon Telegraph and Telephone Corporation
- Masayuki Abe
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Electronic voting method and system and recording medium having rec...
- Patent number 6,845,447
- Issue date Jan 18, 2005
- Nippon Telegraph and Telephone Corporation
- Atsushi Fujioka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for implementing traceable electronic cash
- Patent number 5,889,862
- Issue date Mar 30, 1999
- Nippon Telegraph & Telephone Corporation
- Kazuo Ohta
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for settlement of accounts by IC cards
- Patent number 5,502,765
- Issue date Mar 26, 1996
- Nippon Telegraph & Telephone Corporation
- Ginya Ishiguro
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for settlement of accounts by IC cards
- Patent number 5,446,796
- Issue date Aug 29, 1995
- Nippon Telegraph & Telephone Corporation
- Ginya Ishiguro
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for settlement of accounts by IC cards
- Patent number 5,396,558
- Issue date Mar 7, 1995
- Nippon Telegraph & Telephone Corporation
- Ginya Ishiguro
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
SIGNATURE GENERATING APPARATUS, SIGNATURE VERIFYING APPARATUS, AND...
- Publication number 20100268957
- Publication date Oct 21, 2010
- Nippon Telegraph and Telephone Corporation
- Koutarou Suzuki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Atsushi Fujioka

Person

Patents Grantslast 30 patents

Signature generating apparatus, signature verifying apparatus, and...

Verifiable anonymous channel

Electronic voting method and system and recording medium having rec...

Method and apparatus for implementing traceable electronic cash

Method and apparatus for settlement of accounts by IC cards

Method and apparatus for settlement of accounts by IC cards

Method and apparatus for settlement of accounts by IC cards

Patents Applicationslast 30 patents

SIGNATURE GENERATING APPARATUS, SIGNATURE VERIFYING APPARATUS, AND...