Inventor
CHANG-YU TSAI
Inventor
TW
Overview
Patents· 11 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Lprimary
H01LSemiconductor devices18%
H10HInorganic light-emitting semiconductor devices having potential barriers18%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding14%
B25HWorkshop equipment, e.g. for marking-out work14%
H10DInorganic electric semiconductor devices9%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h109%
B23BTurning5%
B62BHand-propelled vehicles, e.g. hand carts or perambulators5%
F21VFunctional features or details of lighting devices or systems thereof5%
G01BMeasuring length, thickness or similar linear dimensions5%
PatentTitleYear
12,528,178Tool box assembly202612,491,567Hand tool holding structure202512,455,153Tape structure202512,439,734Semiconductor device comprising electron blocking layer202512,311,525Hand tool holder structure202512,300,764Semiconductor device comprising electron blocking layer202512,064,863Tool box structure202411,787,018Rotation wrench202311,688,690Semiconductor device comprising electron blocking layer202311,629,845Clamp lamp202311,600,746Semiconductor device comprising electron blocking layer2023Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2023–2026Patents assigned to TSAI CHANG YU (6)· patent assignee history
2023–2025Patents assigned to EPISTAR CORP (4)· patent assignee history
2023Patents assigned to QISDA CORP (1)· patent assignee history
2023–2026Based in TW· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TSAI CHANG YUself | 6 | 2023–2026 |
| EPISTAR CORP | 4 | 2023–2025 |
| QISDA CORP | 1 | 2023 |
Locations
| Location | Patents | Span |
|---|---|---|
| TW | 11 | 2023–2026 |