Inventor · disambiguated record
Kazuo Fujioka
Also filed as: FUJIOKA KAZUO
17 granted patents·349 citations·filing 1990–1998
95Inventor score
Files withTODA KOGYO CORP17
Top patents by PatentIndex Score
17 records- 0194US5336421ASpinel-type spherical, black iron oxide particles and process for the producing the sameTODA KOGYO CORP·Filed 1993·Granted Aug 9, 1994·58 cites·3 claims
- 0284US5599627AMagnetic particles comprising magnetite core and process for producing the sameTODA KOGYO CORP·Filed 1994·Granted Feb 4, 1997·40 cites·9 claims
- 0377US5652060ASpherical magnetic particles for magnetic toner and process for producing the sameTODA KOGYO CORP·Filed 1996·Granted Jul 29, 1997·27 cites·15 claims
- 0477US5108862AComposite carrier particles for electrophotography and process for producing the sameTODA KOGYO CORP·Filed 1990·Granted Apr 28, 1992·24 cites·13 claims
- 0574US5874019AMagnetic particles for magnetic toner and process for producing the sameTODA KOGYO CORP·Filed 1996·Granted Feb 23, 1999·23 cites·12 claims
- 0671US5688852AIron oxide particles and process for producing the sameTODA KOGYO CORP·Filed 1995·Granted Nov 18, 1997·24 cites·13 claims
- 0770US5648170ACoated granular magnetite particles and process for producing the sameTODA KOGYO CORP·Filed 1994·Granted Jul 15, 1997·20 cites·8 claims
- 0867US5512405AIron oxide particles and process for producing the sameTODA KOGYO CORP·Filed 1995·Granted Apr 30, 1996·15 cites·3 claims
- 0966US5843610AMagnetic particles for magentic toner and process for producing the sameTODA KOGYO CORP·Filed 1997·Granted Dec 1, 1998·17 cites·5 claims
- 1066US5389482AMagnetic particle powder included in magnetic toners for magnetic image character recognitionTODA KOGYO CORP·Filed 1992·Granted Feb 14, 1995·34 cites·6 claims
- 1164US5470660AIron oxide particles and process for producing the sameTODA KOGYO CORP·Filed 1993·Granted Nov 28, 1995·17 cites·9 claims
- 1258US5858532AMagnetite particles, magnetic iron oxide particles, process for the production of the same and magnetic toner using the sameTODA KOGYO CORP·Filed 1997·Granted Jan 12, 1999·12 cites·17 claims
- 1354US6103437AMagnetic toner particles comprising magnetite particles containing siliconTODA KOGYO CORP·Filed 1998·Granted Aug 15, 2000·10 cites·3 claims
- 1451US5328793AMagnetic particles for magnetic tonerTODA KOGYO CORP·Filed 1992·Granted Jul 12, 1994·8 cites·11 claims
- 1551US5118587AMagnetic particles used for electrostatic latent image developer and process for producing the sameTODA KOGYO CORP·Filed 1990·Granted Jun 2, 1992·9 cites·4 claims
- 1645US5578375AGranular magnetite particles and process for producing the sameTODA KOGYO CORP·Filed 1994·Granted Nov 26, 1996·5 cites·9 claims
- 1735US5232805AMagnetic particles containing iron as the main component and process for producing the sameTODA KOGYO CORP·Filed 1991·Granted Aug 3, 1993·6 cites·20 claims
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