Inventor
Hidetoshi Fujii
Inventor
Yamanashi, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B23Kprimary
B23KSoldering or unsoldering27%
C04BLime, magnesia18%
H10DInorganic electric semiconductor devices18%
B81CProcesses or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems9%
H01LSemiconductor devices9%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h109%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
PatentTitleYear
11,130,194Friction stir welding tool member, friction stir welding apparatus using the same, and friction stir welding method202111,110,542Friction pressure welding method202111,097,374Friction stir welding tool member made of silicon nitride sintered body, and friction stir welding apparatus using the same202111,094,552Method for etching recessed structures20214,484,206'Zener diode with protective PN junction portions'19844,405,932'Punch through reference diode'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1984Patents assigned to HITACHI LTD (2)· patent assignee history
1983Patents assigned to HITACHI MICROCUMPUTER ENG (1)· patent assignee history
1983–1984Based in Yamanashi, JP· patent location history
2021Patents assigned to UNIV OSAKA (3)· patent assignee history
2021Patents assigned to TOSHIBA MATERIALS CO LTD (2)· patent assignee history
2021Patents assigned to MURATA MANUFACTURING CO (1)· patent assignee history
2021Based in Suita, JP· patent location history
2021Based in Ibaraki, JP· patent location history
2021Based in Espoo, FI· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| UNIV OSAKA | 3 | 2021 |
| HITACHI LTD | 2 | 1983–1984 |
| TOSHIBA MATERIALS CO LTD | 2 | 2021 |
| HITACHI MICROCUMPUTER ENG | 1 | 1983 |
| MURATA MANUFACTURING CO | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yamanashi, JP | 2 | 1983–1984 |
| Suita, JP | 1 | 2021 |
| Ibaraki, JP | 1 | 2021 |
| Espoo, FI | 1 | 2021 |