Inventor
Norikazu Hashimoto
Inventor
Hachioji, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Bprimary
H10BElectronic memory devices21%
H10DInorganic electric semiconductor devices21%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1017%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1013%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests8%
C04BLime, magnesia4%
C09KMaterials for miscellaneous applications, not provided for elsewhere4%
G11CStatic stores4%
PatentTitleYear
5,132,752'Field effect transistor'19925,124,770'Field effect transistor with alpha particle protection'19924,805,005'Semiconductor device and manufacturing method of the same'19894,529,476'Gas for selectively etching silicon nitride and process for selectively etching silicon nitride with the gas'19854,477,182'Pattern exposing apparatus'19844,451,841'Semiconductor device with multi-layered electrodes'19844,377,819'Semiconductor device'19834,361,949'Process for making a memory device'19824,355,374'Semiconductor memory device'19824,270,262'Semiconductor device and process for making the same'19814,015,281'MIS-FETs isolated on common substrate'19773,942,982'Method for controlling the degree of side-etch in thin oxide films by photo-etching process'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1992Patents assigned to HITACHI LTD (12)· patent assignee history
1976–1984Based in Tokorozawa, JP· patent location history
1977–1992Based in Hachioji, JP· patent location history
1985Patents assigned to SHOWA DENKO KK (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 12 | 1976–1992 |
| SHOWA DENKO KK | 1 | 1985 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hachioji, JP | 7 | 1977–1992 |
| Tokorozawa, JP | 5 | 1976–1984 |