Inventor
Hiroto Tsuyuki
Inventor
Yotsukaido, JP
Overview
Patents· 6 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 them57%
G02BOptical elements, systems or apparatus29%
H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h1014%
PatentTitleYear
5,883,386'Light-receiving apparatus having a position detectable portion on a sealing frame and its manufacturing method'19995,602,613'Lens driving device'19975,045,873'Motor driven shutter'19915,028,946'Shutter for a single lens reflex camera'19914,974,006'Camera lens driving device'19904,929,977'Flash photography changeover device'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990–1991Patents assigned to SEIKOSHA KK (4)· patent assignee history
1990Based in Tokyo, JP· patent location history
1990Based in Chiba, JP· patent location history
1991–1999Based in Yotsukaido, JP· patent location history
1997–1999Patents assigned to SEIKO PRECISION KK (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SEIKOSHA KK | 4 | 1990–1991 |
| SEIKO PRECISION KK | 2 | 1997–1999 |
Locations
| Location | Patents | Span |
|---|---|---|
| Yotsukaido, JP | 4 | 1991–1999 |
| Tokyo, JP | 1 | 1990 |
| Chiba, JP | 1 | 1990 |