Inventor
SHIGEO HAYASHI
Inventor
JP
Overview
Patents· 24 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H10Hprimary
H10HInorganic light-emitting semiconductor devices having potential barriers23%
H01LSemiconductor devices18%
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 systems14%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1012%
F21SNon-portable lighting devices8%
B23KSoldering or unsoldering5%
F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to uses or applications of lighting devices or systems5%
F21KNon-electric light sources using luminescence3%
F21VFunctional features or details of lighting devices or systems thereof3%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution3%
PatentTitleYear
12,457,825Semiconductor light-emitting element202512,413,156Capacitor balancing control in an HVDC MMC202512,308,763Power conversion device202512,294,291Power conversion system202512,273,045Power conversion device with individual cell and arm balancing202512,256,580Semiconductor device202512,255,278Semiconductor light emitting element and semiconductor light emitting device202512,255,546Power conversion device that converts electric power between DC circuit and AC circuit202512,087,897Semiconductor device202412,081,112Power conversion device202412,002,914Semiconductor light-emitting element and semiconductor light-emitting device202411,929,353White light emitting device202411,784,291Light-emitting device202311,742,461Semiconductor device202311,722,069Power conversion system202311,629,827Illumination device and light-emitting module202311,569,424Semiconductor device202311,417,805Semiconductor device202211,309,787Power conversion device202211,258,001Semiconductor light-emitting element and semiconductor light-emitting device202211,211,531Light-emitting device202111,181,245Light source device and light projecting device202111,183,615Semiconductor device202111,159,092Power conversion device2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2025Patents assigned to NUVOTON TECHNOLOGY CORP JAPAN (15)· patent assignee history
2021–2025Patents assigned to MITSUBISHI ELECTRIC CORP (9)· patent assignee history
2021Patents assigned to PANASONIC SEMICONDUCTOR SOLUTIONS CO LTD (2)· patent assignee history
2021Patents assigned to PANASONIC IP MAN CO LTD (1)· patent assignee history
2021–2025Based in JP· patent location history
2022Patents assigned to MITSUBISHII ELECTRIC CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NUVOTON TECHNOLOGY CORP JAPAN | 15 | 2021–2025 |
| MITSUBISHI ELECTRIC CORP | 9 | 2021–2025 |
| PANASONIC SEMICONDUCTOR SOLUTIONS CO LTD | 2 | 2021 |
| MITSUBISHII ELECTRIC CORP | 1 | 2022 |
| PANASONIC IP MAN CO LTD | 1 | 2021 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 24 | 2021–2025 |