Tokuhiro Tsukiyama

Person

Nakagun, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Computer system having a storage area network and method of handlin...
- Patent number 6,950,871
- Issue date Sep 27, 2005
- Hitachi, Ltd.
- Shigeo Honma
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
File encryption method and file cryptographic system
- Patent number 5,235,641
- Issue date Aug 10, 1993
- Hitachi, Ltd.
- Masafumi Nozawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Fast calculation circuit for cyclic redundancy check code
- Patent number 5,093,831
- Issue date Mar 3, 1992
- Hitachi, Ltd.
- Shouichi Serizawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Method and apparatus for data compression and restoration
- Patent number 4,872,009
- Issue date Oct 3, 1989
- Hitachi, Ltd.
- Tokuhiro Tsukiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method for compressing and restoring data series and apparatus for...
- Patent number 4,866,440
- Issue date Sep 12, 1989
- Hitachi, Ltd.
- Tokuhiro Tsukiyama
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data compression control device
- Patent number 4,758,899
- Issue date Jul 19, 1988
- Hitachi, Ltd.
- Tokuhiro Tsukiyama
- G11 - INFORMATION STORAGE
Information Patent Grant
Sector mark signal control circuit for disc apparatus
- Patent number 4,663,752
- Issue date May 5, 1987
- Hitachi, Ltd.
- Katsuharu Kakuse
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and system for data compression and restoration
- Patent number 4,586,027
- Issue date Apr 29, 1986
- Hitachi, Ltd.
- Tokuhiro Tsukiyama
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
Computer system using a storage area network and method of handling...
- Publication number 20040073677
- Publication date Apr 15, 2004
- HITACHI, LTD,
- Shigeo Honma
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Computer system using a storage area network and method of handling...
- Publication number 20040073675
- Publication date Apr 15, 2004
- Hitachi, Ltd.
- Shigeo Honma
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Computer system using a storage area network and method of handling...
- Publication number 20040073676
- Publication date Apr 15, 2004
- Hitachi, Ltd.
- Shigeo Honma
- G06 - COMPUTING CALCULATING COUNTING

Tokuhiro Tsukiyama

Person

Patents Grantslast 30 patents

Computer system having a storage area network and method of handlin...

File encryption method and file cryptographic system

Fast calculation circuit for cyclic redundancy check code

Method and apparatus for data compression and restoration

Method for compressing and restoring data series and apparatus for...

Data compression control device

Sector mark signal control circuit for disc apparatus

Method and system for data compression and restoration

Patents Applicationslast 30 patents

Computer system using a storage area network and method of handling...

Computer system using a storage area network and method of handling...

Computer system using a storage area network and method of handling...