Inventor
Sigeo Tomita
Inventor
Hitachi, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H03Kprimary
H03KPulse technique67%
H10DInorganic electric semiconductor devices17%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1017%
PatentTitleYear
4,884,126'Semiconductor device having parallel-connected, self turn-off type semiconductor elements'19894,833,587'Semiconductor switching circuit'19894,831,288'Direct parallel connection circuit of self-turn-off semiconductor elements'19894,740,723'Semiconductor switch'19884,728,825'Bidirectional MOS linear switch'1988Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1988–1989Patents assigned to HITACHI LTD (4)· patent assignee history
1988–1989Patents assigned to HITACHI HARAMACHI SEMI CONDUCT (3)· patent assignee history
1988–1989Based in Hitachi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 4 | 1988–1989 |
| HITACHI HARAMACHI SEMI CONDUCT | 3 | 1988–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 5 | 1988–1989 |