Inventor
Sunao Ishizaka
Inventor
Tokyo, JP
Overview
Patents· 18 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 them86%
G02BOptical elements, systems or apparatus14%
PatentTitleYear
4,624,540'Film speed setting device for camera'19864,579,433'Film sensitivity setting device for camera'19864,561,741'Camera film feed control apparatus'19854,558,935'Camera provided with means for detecting information on film cartridge'19854,550,991'Device for detecting code on film cartridge'19854,538,890'Camera provided with a mechanism for detecting the film speed of a film'19854,391,488'Mount device of an interchangeable lens'19834,329,040'Signal transmitting device of an intermediate lens barrel of a camera'1982RE030915'Aperture interlocking device for a single lens reflex camera of the interchangeable viewfinder type'19824,326,788'Information transmission means in an intermediate lens tube for camera'19824,314,752'Mount device of a focal length changing auxiliary lens'19824,283,133'Large aperture ratio interchangeable lens for a single lens reflex camera'19814,269,497'Lens barrel for both priorities or shutter speed priority mode automatic exposure system'19814,200,381'Photographing mode switching mechanism in camera'19804,187,016'Viewfinder focusing screen supporting apparatus for single-lens reflex camera'19804,134,661'Exposure indicating device in a single lens reflex camera having a built-in TTL exposure meter'19794,085,416'Aperture interlocking device for a single lens reflex camera of the interchangeable viewfinder type'19784,034,392'Exposure indicator device in a single lens reflex camera with a TTL exposure meter contained therein'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1986Patents assigned to NIPPON KOGAKU KK (17)· patent assignee history
1977–1986Based in Tokyo, JP· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| NIPPON KOGAKU KK | 17 | 1977–1986 |
Locations
| Location | Patents | Span |
|---|---|---|
| Tokyo, JP | 18 | 1977–1986 |