Inventor
Katsuhiko Higashiyama
Inventor
Neyagawa, JP
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Mprimary
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems23%
H03FAmplifiers23%
H02HEmergency protective circuit arrangements15%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1015%
H03KPulse technique8%
H10DInorganic electric semiconductor devices8%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications8%
PatentTitleYear
10,917,004Snubber circuit and power conversion system using same20216,166,596'High efficiency power amplifying apparatus with phase compensation circuit'20006,140,690'Semiconductor device'20006,091,292'High efficiency power amplifying apparatus'20006,060,947'Hybrid IC device with wide dynamic range'20005,818,301'Power amplifier arrangenment of a plural power supply switching type'19985,543,998'Temperature protected power transistor circuit'19965,453,904'Power control unit protection apparatus'19954,424,556'Self-oscillating DC to DC converter'1984Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1984–2000Patents assigned to MATSUSHITA ELECTRIC INDUSTRIAL CO LTD (8)· patent assignee history
1984–2000Based in Neyagawa, JP· patent location history
1998–2021Based in Osaka, JP· patent location history
2021Patents assigned to PANASONIC IP MAN CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MATSUSHITA ELECTRIC INDUSTRIAL CO LTD | 8 | 1984–2000 |
| PANASONIC IP MAN CO LTD | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| Neyagawa, JP | 5 | 1984–2000 |
| Osaka, JP | 4 | 1998–2021 |