Inventor
Junko Akagi
Inventor
Kawasaki, JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Dprimary
H10DInorganic electric semiconductor devices30%
H01QAntennas, i.e. radio aerials10%
H03DDemodulation or transference of modulation from one carrier to another10%
H03FAmplifiers10%
H04BTransmission10%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h1010%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1010%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
PatentTitleYear
5,898,909'Ultra high frequency radio communication apparatus'19995,332,912'Heterojunction bipolar transistor'19944,839,612'High-frequency power amplifier having heterojunction bipolar transistor'19894,739,379'Heterojunction bipolar integrated circuit'19884,370,180'Method for manufacturing power switching devices'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983Patents assigned to TOKYO SHIBAURA ELECTRIC CO (1)· patent assignee history
1983Based in Yokohama, JP· patent location history
1988–1999Patents assigned to TOSHIBA KK (4)· patent assignee history
1988–1994Based in Kawasaki, JP· patent location history
1999Based in Kanagawa, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TOSHIBA KK | 4 | 1988–1999 |
| TOKYO SHIBAURA ELECTRIC CO | 1 | 1983 |
Locations
| Location | Patents | Span |
|---|---|---|
| Kawasaki, JP | 3 | 1988–1994 |
| Kanagawa, JP | 1 | 1999 |
| Yokohama, JP | 1 | 1983 |