Membership
Tour
Register
Log in
Hiroshi Tomizawa
Follow
Person
Hitachi, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Cyclic data communication system
Patent number
5,517,669
Issue date
May 14, 1996
Hitachi, Ltd.
Yoshinori Ohkura
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
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
Loop type data highway system
Patent number
4,510,494
Issue date
Apr 9, 1985
Hitachi, Ltd.
Sadao Mizokawa
H04 - ELECTRIC COMMUNICATION TECHNIQUE