Masakazu Okada

Person

Hitachi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Data integrity guarantee system
- Patent number 5,761,405
- Issue date Jun 2, 1998
- Hitachi, Ltd.
- Katsumi Tadamura
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Network system
- Patent number 5,497,370
- Issue date Mar 5, 1996
- Hitachi, Ltd.
- Takuji Hamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Information communication system for point-to-point communication a...
- Patent number 5,396,485
- Issue date Mar 7, 1995
- Hitachi, Ltd.
- Shuji Ohno
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Data communication system
- Patent number 5,297,139
- Issue date Mar 22, 1994
- Hitachi, Ltd.
- Yoshinori Okura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Insertion and removal of a circuit device into a bus network
- Patent number 5,247,619
- Issue date Sep 21, 1993
- Hitachi, Ltd.
- Yasushi Mutoh
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data communication method and apparatus
- Patent number 5,090,029
- Issue date Feb 18, 1992
- Hitachi, Ltd.
- Toshifumi Yamamoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-slot access system
- Patent number 4,949,336
- Issue date Aug 14, 1990
- Hitachi, Ltd.
- Takuji Hamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method of detecting recovery from fault in a data transmission syst...
- Patent number 4,704,714
- Issue date Nov 3, 1987
- Hitachi, Ltd.
- Hiroshi Tomizawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Multi-computer system with plural serial bus loops
- Patent number 4,468,733
- Issue date Aug 28, 1984
- Hitachi, Ltd.
- Toshihisa Oka
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Loop data transmission control method and system
- Patent number 4,432,054
- Issue date Feb 14, 1984
- Hitachi, Ltd.
- Masakazu Okada
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Data transmission system and method
- Patent number 4,410,985
- Issue date Oct 18, 1983
- Hitachi, Ltd.
- Seiichi Yasumoto
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loop type data highway system
- Patent number 4,136,384
- Issue date Jan 23, 1979
- Hitachi, Ltd.
- Masakazu Okada
- G06 - COMPUTING CALCULATING COUNTING

Masakazu Okada

Person

Patents Grantslast 30 patents

Data integrity guarantee system

Network system

Information communication system for point-to-point communication a...

Data communication system

Insertion and removal of a circuit device into a bus network

Data communication method and apparatus

Multi-slot access system

Method of detecting recovery from fault in a data transmission syst...

Multi-computer system with plural serial bus loops

Loop data transmission control method and system

Data transmission system and method

Loop type data highway system