Inventor
RYOHEI YAMASHITA
Inventor
JP
Overview
Patents· 17 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus24%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein24%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1016%
H10HInorganic light-emitting semiconductor devices having potential barriers14%
H01LSemiconductor devices12%
E02FDredging4%
F15BSystems acting by means of fluids in general4%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form2%
PatentTitleYear
12,284,852Light emitting module202512,189,175Planar light source202512,117,691Method of producing light-emitting device and planar light source202411,934,003Planar light source202411,719,975Light-emitting module and surface-emitting light source202311,650,365Surface light source202311,513,389Light emitting module202211,506,934Light-emitting device and planar light source202211,508,881Light emitting module and method of manufacturing the same202211,493,803Display device and light-diffusing sheet stacked body202211,415,741Surface light source202211,391,878Light emitting module202211,380,826Light emitting module202211,346,081Construction machine202211,329,201Light-emitting device202211,230,819Construction machine202211,143,807Method of manufacturing light emitting module and light emitting module2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2025Patents assigned to NICHIA CORP (15)· patent assignee history
2021–2025Based in JP· patent location history
2022Patents assigned to HITACHI CONSTRUCTION MACH CO (2)· patent assignee history
2022Patents assigned to KEIWA INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NICHIA CORP | 15 | 2021–2025 |
| HITACHI CONSTRUCTION MACH CO | 2 | 2022 |
| KEIWA INC | 1 | 2022 |
Locations
| Location | Patents | Span |
|---|---|---|
| JP | 17 | 2021–2025 |