Inventor
DAISUKE KASAI
Inventor
JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus20%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein17%
H10HInorganic light-emitting semiconductor devices having potential barriers12%
H01LSemiconductor devices10%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1010%
F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted7%
C21DModifying the physical structure of ferrous metals5%
F21VFunctional features or details of lighting devices or systems thereof5%
B21BRolling of metal2%
B21CManufacture of metal sheets, wire, rods, tubes, profiles or like semi-manufactured products otherwise than by rolling2%
PatentTitleYear
12,378,620Quenching method202511,808,966Light-emitting module202311,808,969Planar light source and method of manufacturing planar light source202311,616,169Light emitting module with concave surface light guide plate202311,612,921Rolling mill, and method for setting rolling mill202311,598,913Light-emitting module202311,508,706Light-emitting module202211,480,725Planar light source and method of manufacturing planar light source202211,342,314Light-emitting module202211,326,244Steel material for CVT sheave, CVT sheave, and method for manufacturing CVT sheave202211,307,455Light-emitting module having array of light sources, some aligned and others offset with array of lense structures202211,187,842Light emitting module2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2023Patents assigned to NICHIA CORP (9)· patent assignee history
2021–2025Based in JP· patent location history
2022–2025Patents assigned to AISIN CORP (2)· patent assignee history
2022–2023Patents assigned to NIPPON STEEL CORP (2)· patent assignee history
2022Patents assigned to NIPPON STEEL & SUMITOMO METAL CORP (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NICHIA CORP | 9 | 2021–2023 |
| AISIN CORP | 2 | 2022–2025 |
| NIPPON STEEL CORP | 2 | 2022–2023 |
| NIPPON STEEL & SUMITOMO METAL CORP | 1 | 2022 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 12 | 2021–2025 |