Inventor
An-kai CHANG
Inventor
TW
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus67%
H04NPictorial communication, e.g. television22%
G06VImage or video recognition or understanding11%
PatentTitleYear
12,411,317Lens assembly202512,259,529Lens assembly202512,117,595Lens assembly202411,815,666Wide-angle lens assembly including nine lenses of --+++-++- or --+++-+-+, or ten lenses of --+++--+++ or ---+++-+-+ refractive powers202311,187,874Wide-angle lens assembly202111,143,842Optical lens2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2025Patents assigned to ASIA OPTICAL CO INC (6)· patent assignee history
2021–2025Patents assigned to SINTAI OPTICAL SHENZHEN CO LTD (6)· patent assignee history
2021–2025Based in TW· patent location history
2025Patents assigned to ASI OPTICAL CO INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ASIA OPTICAL CO INC | 6 | 2021–2025 |
| SINTAI OPTICAL SHENZHEN CO LTD | 6 | 2021–2025 |
| ASI OPTICAL CO INC | 1 | 2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| TW | 6 | 2021–2025 |