Inventor · disambiguated record
Sunao Ishizaka
Also filed as: ARAKI YOSHITAKA · ISHIZAKA SUNAO
17 granted patents·134 citations·filing 1976–1985
93Inventor score
Files withNIPPON KOGAKU KK17
Top patents by PatentIndex Score
17 records- 0190US4314752AMount device of a focal length changing auxiliary lensNIPPON KOGAKU KK·Filed 1980·Granted Feb 9, 1982·27 cites·9 claims
- 0281US4391488AMount device of an interchangeable lensNIPPON KOGAKU KK·Filed 1980·Granted Jul 5, 1983·16 cites·9 claims
- 0378US4561741ACamera film feed control apparatusNIPPON KOGAKU KK·Filed 1984·Granted Dec 31, 1985·14 cites·8 claims
- 0475US4134661AExposure indicating device in a single lens reflex camera having a built-in TTL exposure meterNIPPON KOGAKU KK·Filed 1976·Granted Jan 16, 1979·10 cites·6 claims
- 0572US4269497ALens barrel for both priorities or shutter speed priority mode automatic exposure systemNIPPON KOGAKU KK·Filed 1979·Granted May 26, 1981·8 cites·6 claims
- 0672US4200381APhotographing mode switching mechanism in cameraNIPPON KOGAKU KK·Filed 1979·Granted Apr 29, 1980·8 cites·6 claims
- 0771US4187016AViewfinder focusing screen supporting apparatus for single-lens reflex cameraNIPPON KOGAKU KK·Filed 1978·Granted Feb 5, 1980·8 cites·2 claims
- 0863US4538890ACamera provided with a mechanism for detecting the film speed of a filmNIPPON KOGAKU KK·Filed 1984·Granted Sep 3, 1985·7 cites·11 claims
- 0958US4579433AFilm sensitivity setting device for cameraNIPPON KOGAKU KK·Filed 1984·Granted Apr 1, 1986·6 cites·5 claims
- 1054US4329040ASignal transmitting device of an intermediate lens barrel of a cameraNIPPON KOGAKU KK·Filed 1981·Granted May 11, 1982·13 cites·5 claims
- 1149US4326788AInformation transmission means in an intermediate lens tube for cameraNIPPON KOGAKU KK·Filed 1981·Granted Apr 27, 1982·4 cites·6 claims
- 1249US4034392AExposure indicator device in a single lens reflex camera with a TTL exposure meter contained thereinNIPPON KOGAKU KK·Filed 1976·Granted Jul 5, 1977·3 cites·6 claims
- 1345US4550991ADevice for detecting code on film cartridgeNIPPON KOGAKU KK·Filed 1984·Granted Nov 5, 1985·3 cites·2 claims
- 1443US4558935ACamera provided with means for detecting information on film cartridgeNIPPON KOGAKU KK·Filed 1984·Granted Dec 17, 1985·3 cites·7 claims
- 1537US4283133ALarge aperture ratio interchangeable lens for a single lens reflex cameraNIPPON KOGAKU KK·Filed 1979·Granted Aug 11, 1981·1 cites·4 claims
- 1637US4085416AAperture interlocking device for a single lens reflex camera of the interchangeable viewfinder typeNIPPON KOGAKU KK·Filed 1976·Granted Apr 18, 1978·1 cites·6 claims
- 1736US4624540AFilm speed setting device for cameraNIPPON KOGAKU KK·Filed 1985·Granted Nov 25, 1986·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →