Inventor
SEIJI OKA
Inventor
JP
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F24Fprimary
F24FAir-conditioning13%
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 systems13%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1013%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications13%
F25BRefrigeration machines, plants or systems6%
G01NInvestigating or analysing materials by determining their chemical or physical properties6%
G05BControl or regulating systems in general6%
G06FElectric digital data processing6%
H01LSemiconductor devices6%
H02PControl or regulation of electric motors, electric generators or dynamo-electric converters6%
PatentTitleYear
12,352,674Test method and method for manufacturing semiconductor device202511,846,436Floor-standing air conditioner202311,835,245Air conditioning system, and indoor unit of same202311,735,514Semiconductor device and power conversion device202311,368,094Control system and power supply unit2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022Patents assigned to OMRON TATEISI ELECTRONICS CO (1)· patent assignee history
2022–2025Based in JP· patent location history
2023Patents assigned to DAIKIN IND LTD (2)· patent assignee history
2023–2025Patents assigned to MITSUBISHI ELECTRIC CORP (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DAIKIN IND LTD | 2 | 2023 |
| MITSUBISHI ELECTRIC CORP | 2 | 2023–2025 |
| OMRON TATEISI ELECTRONICS CO | 1 | 2022 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 5 | 2022–2025 |