Inventor
Yukio Takaoka
Inventor
Tokyo, JP
Overview
Patents· 13 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 them63%
G02BOptical elements, systems or apparatus19%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy6%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
PatentTitleYear
5,666,580'Pseudo telephotographic camera and camera having pseudo telephotographic mode'19975,266,992'Zoom lens camera having macro photographing function'19935,233,472'Method of controlling a zoom lens assembly'19935,170,294'Method of controlling the zoom lens assembly'19924,863,812'Battery receptacle'19894,525,046'Caseless camera'19854,486,083'Exposure counter disc mechanism for cameras'19844,365,883'Focusing screen holding device'19824,226,521'Camera aperture controlling brake'19804,219,262'Camera electrical self-timer'19804,179,201'Lens stop braking in automatic exposure cameras of stop value control type'19794,149,785'Diaphragm-type exposure control system having braking arrangement'19794,139,290'Lens stop auxiliary brake control device in automatic exposure camera of the lens stop value control type'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1997Patents assigned to ASAHI OPTICAL CO LTD (12)· patent assignee history
1979–1982Based in Asaka, JP· patent location history
1984–1997Based in Tokyo, JP· patent location history
1992Patents assigned to ASAHI KOGAKU KK (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ASAHI OPTICAL CO LTD | 12 | 1979–1997 |
| ASAHI KOGAKU KK | 1 | 1992 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 7 | 1984–1997 |
| Asaka, JP | 6 | 1979–1982 |