Inventor
Kiyoshi Tsukuda
Inventor
Hitachi, JP
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Dprimary
H10DInorganic electric semiconductor devices88%
H04QSelecting13%
PatentTitleYear
5,672,897'Bimos semiconductor integrated circuit device including high speed vertical bipolar transistors'19975,508,549'Semiconductor integrated circuit device and a method for manufacturing the same'19965,049,967'Semiconductor integrated circuit device and a method for manufacturing the same'19914,980,744'Semiconductor integrated circuit device and a method for manufacturing the same'19904,921,811'Semiconductor integrated circuit device and a method for manufacturing the same'19904,361,846'Lateral type semiconductor devices with enlarged, large radii collector contact regions for high reverse voltage'19824,257,060'Semiconductor switch'1981Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1981–1997Patents assigned to HITACHI LTD (7)· patent assignee history
1981Based in Ibaraki, JP· patent location history
1982–1997Based in Hitachi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 7 | 1981–1997 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 6 | 1982–1997 |
| Ibaraki, JP | 1 | 1981 |