Inventor · disambiguated record
Toshitaka Fujii
Also filed as: FUJII TOSHITAKA
26 granted patents·6 pending applications·139 citations·filing 1987–2017
95Inventor score
Files withPHOENIX ELECTRIC CO LTD15FUJITSU LTD3MINEBEA CO LTD2OYAMA TAKASHI2TOSHIBA MATERIALS CO LTD2
Top patents by PatentIndex Score
32 records- 0190US7306340B2Projection system using a high-pressure discharge lamp adapted to d.c. lighting, and method of operating the samePHOENIX ELECTRIC CO LTD·Filed 2005·Granted Dec 11, 2007·15 cites·4 claims
- 0284US8226921B2Raw coke for electricity storage carbon material and needle cokeOYAMA TAKASHI·Filed 2011·Granted Jul 24, 2012·4 cites·4 claims
- 0382US8197788B2Raw coke for electricity storage carbon material and needle cokeOYAMA TAKASHI·Filed 2011·Granted Jun 12, 2012·4 cites·7 claims
- 0479US9732278B2Petroleum coke and production method for sameJX NIPPON OIL & ENERGY CORP·Filed 2014·Granted Aug 15, 2017·2 cites·8 claims
- 0579US7959888B2Raw coke for electricity storage carbon material and needle cokeNIPPON OIL CORP·Filed 2006·Granted Jun 14, 2011·8 cites·9 claims
- 0675US6788009B2Method and device for lighting ultra-high pressure discharge lampsPHOENIX ELECTRIC CO LTD·Filed 2001·Granted Sep 7, 2004·19 cites·4 claims
- 0774US10368408B2Light emitting device and LED light bulbTOSHIBA MATERIALS CO LTD·Filed 2016·Granted Jul 30, 2019·2 cites·14 claims
- 0869US6262949B1Multilayer resonance device and magneto-optical recording medium with magnetic center layer of a different thickness than that of the components of the reflecting layersFUJITSU LTD·Filed 1998·Granted Jul 17, 2001·20 cites·19 claims
- 0968US7504780B2Power supply unit for light source and method of controlling the sameRUBYCON CORP·Filed 2007·Granted Mar 17, 2009·5 cites·8 claims
- 1067US7517093B2Projection-type system and method of operating the samePHOENIX ELECTRIC CO LTD·Filed 2004·Granted Apr 14, 2009·7 cites·10 claims
- 1162US7348737B2Lighting circuit for high-pressure discharge lampPHOENIX ELECTRIC CO LTD·Filed 2006·Granted Mar 25, 2008·7 cites·2 claims
- 1260US8040077B2Starting circuit of starting device for high-pressure discharge lamp including auxiliary light source, starting device including the starting circuit, and lighting system including the starting devicePHOENIX ELECTRIC CO LTD·Filed 2009·Granted Oct 18, 2011·1 cites·6 claims
- 1360US7227827B2Optical information recording apparatus, optical information reproducing apparatus, optical information recording/reproducing apparatus, and optical information recording mediumOPTWARE CORP·Filed 2001·Granted Jun 5, 2007·4 cites·10 claims
- 1460US6914393B2Method and device for lighting high pressure discharge lampsPHOENIX ELECTRIC CO LTD·Filed 2003·Granted Jul 5, 2005·8 cites·5 claims
- 1555US9148926B2LED lampPHOENIX ELECTRIC CO LTD·Filed 2014·Granted Sep 29, 2015·0 cites·7 claims
- 1652US2009224667A1Auxiliary light source and lighting system having the samePHOENIX ELECTRIC CO LTD·Filed 2009·Application pending·0 cites
- 1749US10368409B2Light emitting device and LED light bulbTOSHIBA MATERIALS CO LTD·Filed 2017·Granted Jul 30, 2019·0 cites·16 claims
- 1849US6359722B1Optical isolator with a compact dimensionMINEBEA CO LTD·Filed 2000·Granted Mar 19, 2002·2 cites·4 claims
- 1948US2010026726A1Image projection system by means of direct current type high voltage dischargePHOENIX ELECTRIC CO LTD·Filed 2006·Application pending·0 cites
- 2047US7478928B2Light source devicePHOENIX ELECTRIC CO LTD·Filed 2006·Granted Jan 20, 2009·0 cites·4 claims
- 2145US5164349AElectromagnetic effect materialUBE INDUSTRIES·Filed 1991·Granted Nov 17, 1992·9 cites·12 claims
- 2245US2009230888A1Discharge lamp operation devicePHOENIX ELECTRIC CO LTD·Filed 2007·Application pending·0 cites
- 2344US6743465B2Magnetic optical member with a polymer substrateMINEBEA CO LTD·Filed 2001·Granted Jun 1, 2004·1 cites·2 claims
- 2444US6421303B1Multilayer resonance device and magneto-optical recording medium with magnetic center layer of a different thickness than that of the components of the reflecting layers, and method of reproducing the sameFUJITSU LTD·Filed 1998·Granted Jul 16, 2002·6 cites·11 claims
- 2543US7808167B2High-pressure discharge lamp and light sources device using the samePHOENIX ELECTRIC CO LT D·Filed 2008·Granted Oct 5, 2010·0 cites·12 claims
- 2641US2008042538A1Metallic Concave Reflection Mirror, Light Source and Light Source Apparatus Using the Same, and Lighting Circuit ThereofPHOENIX ELECTRIC CO LTD·Filed 2004·Application pending·0 cites
- 2739US6285130B1Metal halide lampPHOENIX ELECTRIC CO LTD·Filed 1998·Granted Sep 4, 2001·4 cites·4 claims
- 2838US2010171421A1High-pressure discharge lampPHOENIX ELECTRIC CO LTD·Filed 2010·Application pending·0 cites
- 2938US2001048643A1Multilayer resonance deviceFUJITSU LTD·Filed 2001·Application pending·0 cites
- 3036US7576494B2High voltage discharge lamp lighting method, lighting apparatus and image device using that lighting apparatusPHOENIX ELECTRIC CO LTD·Filed 2004·Granted Aug 18, 2009·1 cites·13 claims
- 3132US4802300AFishing hookFUJII TOSHITAKA·Filed 1987·Granted Feb 7, 1989·10 cites·1 claims
- 3224US5273836AMagnetooptic recording materialYAMAHA CORP·Filed 1992·Granted Dec 28, 1993·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →