Inventor
Kazuhiro Ohnishi
Inventor
Hachiohji, JP
Overview
Patents· 14 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Dprimary
H10DInorganic electric semiconductor devices67%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1024%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1010%
PatentTitleYear
8,004,041'Semiconductor device for surge protection'20117,238,582'Semiconductor device and process of producing the same'20077,042,051'Semiconductor device including impurity layer having a plurality of impurity peaks formed beneath the channel region'20067,029,988'Fabrication method and device structure of shallow trench insulation for silicon wafer containing silicon-germanium'20066,936,875'Insulated-gate field-effect transistor, method of fabricating same, and semiconductor device employing same'20056,878,606'Fabrication method and device structure of shallow trench insulation for silicon wafer containing silicon-germanium'20056,835,632'Semiconductor device and process of producing the same'20046,750,503'Stacked gate electrode for a MOS transistor of a semiconductor device'20046,610,569'Semiconductor device and process of producing the same'20036,524,924'Semiconductor device and process of producing the same'20036,524,903'Method of manufacturing a semiconductor device having two peaks in an impurity concentration distribution'20036,133,094'Semiconductor device and process of producing the same'20005,793,097'Semiconductor device having conducting structure'19985,324,983'Semiconductor device'1994Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1994–2004Patents assigned to HITACHI LTD (7)· patent assignee history
1994Based in Hachioji, JP· patent location history
1998Patents assigned to HITACHI DEVICE ENGINEERING COM (1)· patent assignee history
1998–2007Based in Hachiohji, JP· patent location history
2000–2007Patents assigned to HITACHI DEVICE ENG (5)· patent assignee history
2003–2006Based in Kodaira, JP· patent location history
2004–2006Patents assigned to RENESAS TECH CORP (5)· patent assignee history
2011Patents assigned to PANASONIC CORP (1)· patent assignee history
2011Based in Osaka, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 7 | 1994–2004 |
| HITACHI DEVICE ENG | 5 | 2000–2007 |
| RENESAS TECH CORP | 5 | 2004–2006 |
| HITACHI DEVICE ENGINEERING COM | 1 | 1998 |
| PANASONIC CORP | 1 | 2011 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hachiohji, JP | 6 | 1998–2007 |
| Kodaira, JP | 6 | 2003–2006 |
| Osaka, JP | 1 | 2011 |
| Hachioji, JP | 1 | 1994 |