Inventor · disambiguated record
Yoshio Sawada
Also filed as: SAWADA YOSHIO
22 granted patents·148 citations·filing 1975–2001
95Inventor score
Files withASAHI OPTICAL CO LTD17ASAKI KOGAKU KOGYO KABUSHIKI K1HOUSE FOOD INDUSTRIAL CO1HOUSE FOODS CORP1NIPPON PRECISION CIRCUITS1
Top patents by PatentIndex Score
22 records- 0189US4250413ACamera power supply maintaining circuitASAHI OPTICAL CO LTD·Filed 1978·Granted Feb 10, 1981·19 cites·7 claims
- 0273US6465967B2Control circuit of light emitting elementNIPPON PRECISION CIRCUITS·Filed 2001·Granted Oct 15, 2002·14 cites·8 claims
- 0361US4084166ACircuit for locking led light meter display in response to meter display in response to mirror movement in slr cameraASAHI OPTICAL CO LTD·Filed 1976·Granted Apr 11, 1978·5 cites·4 claims
- 0459US4329032AAutomatic focus indicating device for cameraASAHI OPTICAL CO LTD·Filed 1980·Granted May 11, 1982·16 cites·4 claims
- 0557US5565710AProcess for manufacturing granular igniterNOF CORP·Filed 1995·Granted Oct 15, 1996·24 cites·23 claims
- 0654US4171884AElectrically controlled camera deviceASAHI OPTICAL CO LTD·Filed 1977·Granted Oct 23, 1979·4 cites·7 claims
- 0749US4298259AFocus detecting device for photographic cameraASAKI KOGAKU KOGYO KABUSHIKI K·Filed 1979·Granted Nov 3, 1981·12 cites·4 claims
- 0848US4319813AAutomatic focus indicating device for cameraASAHI OPTICAL CO LTD·Filed 1980·Granted Mar 16, 1982·10 cites·8 claims
- 0945US4320946ACamera focus detecting deviceASAHI OPTICAL CO LTD·Filed 1980·Granted Mar 23, 1982·9 cites·6 claims
- 1045US4092653AMirror movement disable circuit for led display in light finder of slr cameraASAHI OPTICAL CO LTD·Filed 1976·Granted May 30, 1978·2 cites·3 claims
- 1143US4149785ADiaphragm-type exposure control system having braking arrangementASAHI OPTICAL CO LTD·Filed 1978·Granted Apr 17, 1979·2 cites·6 claims
- 1242US4112439ADigital display circuit for a photographic exposure meterASAHI OPTICAL CO LTD·Filed 1976·Granted Sep 5, 1978·6 cites·6 claims
- 1339US4293207ACamera focus detecting deviceASAHI OPTICAL CO LTD·Filed 1980·Granted Oct 6, 1981·6 cites·3 claims
- 1439US4209245ALong time exposure preventing device for camera with electronic flashASAHI OPTICAL CO LTD·Filed 1978·Granted Jun 24, 1980·1 cites·10 claims
- 1536US4180310APhotometric circuitASAHI OPTICAL CO LTD·Filed 1978·Granted Dec 25, 1979·1 cites·3 claims
- 1636US4139290ALens stop auxiliary brake control device in automatic exposure camera of the lens stop value control typeASAHI OPTICAL CO LTD·Filed 1978·Granted Feb 13, 1979·1 cites·1 claims
- 1735US4252425ACamera focus detecting deviceASAHI OPTICAL CO LTD·Filed 1979·Granted Feb 24, 1981·4 cites·6 claims
- 1834US4106035APhotometric circuitASAHI OPTICAL CO LTD·Filed 1976·Granted Aug 8, 1978·1 cites·2 claims
- 1934US4099195ACamera having automatic and manual exposure-time determinationASAHI OPTICAL CO LTD·Filed 1975·Granted Jul 4, 1978·1 cites·9 claims
- 2032US5238695ADyeing agent, dyeing solution and method for dyeing strawberryHOUSE FOOD INDUSTRIAL CO·Filed 1991·Granted Aug 24, 1993·5 cites·14 claims
- 2131US4326127AFocus detecting deviceASAHI OPTICAL CO LTD·Filed 1980·Granted Apr 20, 1982·2 cites·4 claims
- 2221US5370887ADyeing agent and dyeing solutionHOUSE FOODS CORP·Filed 1991·Granted Dec 6, 1994·3 cites·13 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →