Katsuyuki Okeya

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Yokohama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Computation method for modular exponentiation operation in decrypti...
- Patent number 7,512,231
- Issue date Mar 31, 2009
- Hitachi, Ltd.
- Katsuyuki Okeya
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Elliptic scalar multiplication system
- Patent number 7,308,096
- Issue date Dec 11, 2007
- Hitachi, Ltd.
- Katsuyuki Okeya
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method of calculating multiplication by scalars on an elliptic curv...
- Patent number 7,046,801
- Issue date May 16, 2006
- Hitachi, Ltd.
- Katsuyuki Okeya
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Elliptic curve generating method and device, elliptic encryption sy...
- Patent number 6,816,594
- Issue date Nov 9, 2004
- Hitachi, Ltd.
- Katsuyuki Okeya
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Computation method for modular exponentiation operation in decrypti...
- Publication number 20050147241
- Publication date Jul 7, 2005
- Katsuyuki Okeya
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Elliptic curve scalar multiplication method and device, and storage...
- Publication number 20030156714
- Publication date Aug 21, 2003
- Katsuyuki Okeya
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Elliptic scalar multiplication system
- Publication number 20030059042
- Publication date Mar 27, 2003
- Katsuyuki Okeya
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Elliptic curve signature verification method and apparatus and a st...
- Publication number 20030059043
- Publication date Mar 27, 2003
- Katsuyuki Okeya
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Method of calculating multiplication by scalars on an elliptic curv...
- Publication number 20010048741
- Publication date Dec 6, 2001
- Katsuyuki Okeya
- G06 - COMPUTING CALCULATING COUNTING