Inventor · disambiguated record
Yoshiaki Ohtsubo
Also filed as: AKASAKA SHIGEO · OHTSUBO YOSHIAKI · TAKEMAE MIKIO
27 granted patents·281 citations·filing 1977–1994
96Inventor score
Top patents by PatentIndex Score
27 records- 0198US5400113AControl device for preventing red-eye effect on cameraNIKON CORP·Filed 1994·Granted Mar 21, 1995·87 cites·9 claims
- 0288US4269496APower supply circuit for cameraNIPPON KOGAKU KK·Filed 1979·Granted May 26, 1981·17 cites·5 claims
- 0384US4238146ASound alarm device in a cameraNIPPON KOGAKU KK·Filed 1979·Granted Dec 9, 1980·14 cites·5 claims
- 0475US4275953AExposure parameter information generating circuit in a single lens reflex cameraNIPPON KOGAKU KK·Filed 1979·Granted Jun 30, 1981·9 cites·7 claims
- 0574US4160160ACircuit for integrating a quantity of light in an automatic control type flash unitNIPPON KOGAKU KK·Filed 1977·Granted Jul 3, 1979·9 cites·3 claims
- 0672US4407573APop up flash device control for a cameraNIPPON KOGAKU KK·Filed 1981·Granted Oct 4, 1983·11 cites·10 claims
- 0767US4511233ACharge control device in a flash device for a cameraNIPPON KOGAKU KK·Filed 1983·Granted Apr 16, 1985·7 cites·3 claims
- 0867US4441774AFlash device of a cameraNIPPON KOGAKU KK·Filed 1981·Granted Apr 10, 1984·7 cites·10 claims
- 0964US5038165ACamera with built-in self-timerNIKON CORP·Filed 1991·Granted Aug 6, 1991·11 cites·6 claims
- 1063US5006700ADistance-measuring apparatus for cameraNIKON CORP·Filed 1990·Granted Apr 9, 1991·25 cites·8 claims
- 1161US4302085AShutter time adjustment for a flash mode and/or film-leader locationNIPPON KOGAKU KK·Filed 1980·Granted Nov 24, 1981·7 cites·5 claims
- 1260US5367353AOperation control device for a cameraNIKON CORP·Filed 1993·Granted Nov 22, 1994·9 cites·6 claims
- 1354US4122465ADevice for indicating condition of exposure in an automatic control type electronic flash unit for flash photographyNIPPON KOGAKU KK·Filed 1977·Granted Oct 24, 1978·12 cites·5 claims
- 1450US4239358AAlarm device control system in a cameraNIPPON KOGAKU KK·Filed 1979·Granted Dec 16, 1980·3 cites·4 claims
- 1546US5198854ACamera with an electronic flash light apparatusNIKON CORP·Filed 1992·Granted Mar 30, 1993·5 cites·1 claims
- 1645US4389108APower supply control circuit in a cameraNIPPON KOGAKU KK·Filed 1982·Granted Jun 21, 1983·3 cites·2 claims
- 1744US4189219AControl system for flash photographing apparatusNIPPON KOGAKU KK·Filed 1977·Granted Feb 19, 1980·8 cites·5 claims
- 1842US4289388AAutomatic focus adjusting device of a camera having a self-timerNIPPON KOGAKU KK·Filed 1980·Granted Sep 15, 1981·7 cites·6 claims
- 1942US4264164AMemory holding device in a single lens reflex cameraNIPPON KOGAKU KK·Filed 1979·Granted Apr 28, 1981·2 cites·4 claims
- 2040US5003332AElectrically operated camera which selectively inhibits shutter release based on film presenceNIKON CORP·Filed 1990·Granted Mar 26, 1991·3 cites·6 claims
- 2140US4909624AActive distance measuring apparatusNIKON CORP·Filed 1989·Granted Mar 20, 1990·8 cites·9 claims
- 2240US4340284ATemperature-compensated signal transmitting deviceNIPPON KOGAKU KK·Filed 1981·Granted Jul 20, 1982·2 cites·9 claims
- 2339US4362373AShutter control device for a camera having a shutter release lock deviceNIPPON KOGAKU KK·Filed 1981·Granted Dec 7, 1982·2 cites·3 claims
- 2438US4796044AAuto-focus cameraNIKON CORP·Filed 1987·Granted Jan 3, 1989·10 cites·8 claims
- 2537US5216459AOperation control device for a cameraNIKON CORP·Filed 1991·Granted Jun 1, 1993·2 cites·8 claims
- 2636US4089013AFlashlight information signal generating device for a cameraNIPPON KOGAKU KK·Filed 1977·Granted May 9, 1978·1 cites·2 claims
- 2731US4373790ACamera having a flashlight photography recommendation deviceNIPPON KOGAKU KK·Filed 1981·Granted Feb 15, 1983·0 cites·5 claims
Join the waitlist — get patent alerts
Get an alert when Yoshiaki Ohtsubo files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →