Inventor
Naoto Takehana
Inventor
Matsumoto, JP
Overview
Patents· 12 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G03Bprimary
G03BApparatus or arrangements for taking photographs or for projecting or viewing them48%
G02BOptical elements, systems or apparatus36%
H04NPictorial communication, e.g. television16%
PatentTitleYear
10,656,505Optical projection device and projector202010,571,784Projection optical device and projector202010,564,529Projection lens and projector202010,503,057Projection lens and projector201910,180,560Optical projection device and projector that corrects the inclination of the movable lens frame with respect to the optical axis201910,146,109Projection system and projector20189,885,943'Projection lens and projector'20189,690,176'Projection optical apparatus and projector'20179,667,927'Projector'20179,354,420'Lens barrel and projector'20168,974,063'Exhaust port shutter apparatus and projector'20158,641,199'Projector'2014Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2014–2020Patents assigned to SEIKO EPSON CORP (12)· patent assignee history
2014–2015Patents assigned to TAKEHANA NAOTO (2)· patent assignee history
2014–2020Based in Matsumoto, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEIKO EPSON CORP | 12 | 2014–2020 |
| TAKEHANA NAOTOself | 2 | 2014–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Matsumoto, JP | 12 | 2014–2020 |