Inventor
Takeo Tamamura
Inventor
Hitachi, JP
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification20%
B23KSoldering or unsoldering13%
C22CAlloys13%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids7%
B23PMetal-working not otherwise provided for7%
C22FChanging the physical structure of non-ferrous metals and non-ferrous alloys7%
F02PIgnition, other than compression ignition, for internal-combustion engines7%
G11BInformation storage based on relative movement between record carrier and transducer7%
H01RElectrically-conductive connections7%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h107%
PatentTitleYear
5,153,704'Semiconductor device using annealed bonding wire'19924,668,591'Magnetic separator matrix of cut pieces of an elongated crystalline magnetic alloy'19874,331,286'Method for pressure bonding metal members by utilizing eutectic reaction'19824,308,436'Distributor for internal combustion engine'19814,163,266'Magnetic tape scanning assembly for use in video tape recorder and playback apparatus'19794,077,810'Aluminum alloys having improved mechanical properties and workability and method of making same'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1992Patents assigned to HITACHI LTD (6)· patent assignee history
1978–1992Based in Hitachi, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HITACHI LTD | 6 | 1978–1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Hitachi, JP | 6 | 1978–1992 |