Inventor
Masashi HAYASHIGUCHI
Inventor
JP
Overview
Patents· 32 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 systems18%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1015%
H01LSemiconductor devices13%
H03KPulse technique7%
H02HEmergency protective circuit arrangements7%
B60LPropulsion of electrically-propelled vehicles5%
H02KDynamo-electric machines5%
G01RMeasuring electric variables4%
H05KPrinted circuits4%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications4%
PatentTitleYear
12,573,967Power conversion device202612,557,702Semiconductor device comprising plurality of switching elements and rectifier elements for preventing excessive current202612,538,854Semiconductor apparatus202612,395,169Semiconductor device, semiconductor module, relay unit, battery unit, and vehicle202512,381,489Light-weight high power inverter structure with equalized inductance202512,355,365Electric drive unit having arrangement constituting inverter to reduce busbar inductance and installation space202512,316,307Switching device and electronic circuit202512,283,573Semiconductor power module202512,272,996Electric drive unit202512,261,595Semiconductor device202512,249,878Electric drive with arc shaped busbar connected to terminal of smoothing capacitor202512,206,338Electric drive with arc shaped busbar connected to terminal of smoothing capacitor202512,199,525Inverter having capacitor bus plates connecting to power modules202512,143,027Inverter structure202412,128,772Semiconductor unit, battery unit, and vehicle202412,107,029Power module with graphite plate202412,101,917Vehicle drive unit202412,068,741Switching device and electronic circuit202412,063,030Switching device and electronic circuit202411,967,545Semiconductor device202411,936,369Switching device and electronic circuit202411,923,278Semiconductor module202411,909,329Semiconductor unit, semiconductor device, battery unit, and vehicle202411,901,340Semiconductor power module202411,850,953Vehicle drive unit202311,784,639Semiconductor device, semiconductor module, relay unit, battery unit, and vehicle202311,728,801Switching device and electronic circuit202311,664,298Semiconductor module202311,600,602Semiconductor power module2023D0978809Semiconductor module202311,336,275Switching device and electronic circuit202211,328,985Semiconductor module2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2026Patents assigned to ROHM CO LTD (32)· patent assignee history
2022–2026Based in JP· patent location history
2023–2025Patents assigned to MAZDA MOTOR (9)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ROHM CO LTD | 32 | 2022–2026 |
| MAZDA MOTOR | 9 | 2023–2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 32 | 2022–2026 |