Inventor · disambiguated record
Yoshifumi Kuroki
Also filed as: KUROKI YOSHIFUMI
13 granted patents·137 citations·filing 1981–2013
90Inventor score
Files withASAHI OPTICAL CO LTD5KUROKI YOSHIFUMI2MATSUSHITA ELECTRIC WORKS LTD2HIRAMATU AKINORI1KUMADA KAZUHIRO1
Top patents by PatentIndex Score
13 records- 0192US4333719AMultiple flash adaptorASAHI OPTICAL CO LTD·Filed 1981·Granted Jun 8, 1982·36 cites·1 claims
- 0288US8502463B2LED driver circuit with open load detection and associated control methodMIZUKAWA HIROMITSU·Filed 2011·Granted Aug 6, 2013·22 cites·20 claims
- 0375US9167654B2Solid light source lighting device, illumination apparatus, and illumination systemPANASONIC IP MAN CO LTD·Filed 2013·Granted Oct 20, 2015·3 cites·15 claims
- 0472US8487539B2Power supply for an LED illumination deviceKUROKI YOSHIFUMI·Filed 2010·Granted Jul 16, 2013·4 cites·20 claims
- 0571US7378804B2Ballast for a discharge lamp with integrated control circuit for controlling switching element of dc power supply and inverter circuitMATSUSHITA ELECTRIC WORKS LTD·Filed 2002·Granted May 27, 2008·27 cites·6 claims
- 0670US5502423ADischarge lamp lighting deviceMATSUSHITA ELECTRIC WORKS LTD·Filed 1994·Granted Mar 26, 1996·31 cites·21 claims
- 0769US8154214B2Switching power supply for an illumination device with precision current controlKUROKI YOSHIFUMI·Filed 2010·Granted Apr 10, 2012·3 cites·20 claims
- 0852US4500190ACamera system including flash and status indicating control circuitASAHI OPTICAL CO LTD·Filed 1984·Granted Feb 19, 1985·5 cites·4 claims
- 0947US4502775ACamera flash photographing control deviceASAHI OPTICAL CO LTD·Filed 1983·Granted Mar 5, 1985·4 cites·6 claims
- 1041US8482222B2Lighting device and light fixture using lighting deviceHIRAMATU AKINORI·Filed 2011·Granted Jul 9, 2013·0 cites·20 claims
- 1138US8390213B2LED power-source circuit and illumination fixture using the sameKUMADA KAZUHIRO·Filed 2010·Granted Mar 5, 2013·0 cites·6 claims
- 1238US4595267AMethod of sending and receiving signals in photography with camera and camera flash device for that methodASAHI OPTICAL CO LTD·Filed 1982·Granted Jun 17, 1986·2 cites·4 claims
- 1330US4521094AAperture value control device utilizing frequency signal from flash unit for cameraASAHI OPTICAL CO LTD·Filed 1984·Granted Jun 4, 1985·0 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →