Shigemi Okumura

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Patents Grantslast 30 patents

Information Patent Grant
A system for notifying a destination terminal that electronic mail...
- Patent number 5,293,250
- Issue date Mar 8, 1994
- Hitachi, Ltd.
- Shigemi Okumura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Virtual computer system
- Patent number 4,975,836
- Issue date Dec 4, 1990
- Hitachi, Ltd.
- Toshio Hirosawa
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Method and apparatus for controlling interrupts in a virtual machin...
- Patent number 4,812,967
- Issue date Mar 14, 1989
- Hitachi, Ltd.
- Toshio Hirosawa
- G06 - COMPUTING CALCULATING COUNTING