Inventor · disambiguated record
Kazumasa Hayashi
Also filed as: HAYASHI KAZUMASA
18 granted patents·4 pending applications·589 citations·filing 1981–2009
94Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD16SHARP KK3NINOMIYA KOHJI1SANWA DENPUN IND CO LTD1TOKURA SHINICHI1
Top patents by PatentIndex Score
22 records- 0196US6625845B2Cyclonic vacuum cleanerSHARP KK·Filed 2001·Granted Sep 30, 2003·299 cites·32 claims
- 0295US6553613B2Electric vacuum cleanerSHARP KK·Filed 2001·Granted Apr 29, 2003·157 cites·9 claims
- 0386US7391998B2Developing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Jun 24, 2008·9 cites·20 claims
- 0479US8307938B2Electric power steering apparatusTOKURA SHINICHI·Filed 2009·Granted Nov 13, 2012·11 cites·9 claims
- 0573US6567625B1Image forming apparatus and process cartridge with delayed rotation of photosensitive memberMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted May 20, 2003·13 cites·56 claims
- 0668US6148167ADeveloping apparatus with a developing regulating memberMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Nov 14, 2000·20 cites·14 claims
- 0766US8627531B2Vacuum cleaner and device having ion generatorNINOMIYA KOHJI·Filed 2009·Granted Jan 14, 2014·4 cites·11 claims
- 0865US7591043B2Vacuum cleaner and device having ion generatorSHARP KK·Filed 2002·Granted Sep 22, 2009·11 cites·3 claims
- 0963US5539502AMulti-chamber electro-photographic developing unit for image forming apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jul 23, 1996·18 cites·20 claims
- 1059US7412194B2Developing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Aug 12, 2008·2 cites·10 claims
- 1159US7313351B2One-component type developing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Dec 25, 2007·2 cites·9 claims
- 1254US7269381B2Developing apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Sep 11, 2007·1 cites·7 claims
- 1348US5640648AElectrophotographic apparatus having sealing memberMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jun 17, 1997·9 cites·14 claims
- 1448US4425452ACoating color for paper and method for preparation of the sameSANWA DENPUN IND CO LTD·Filed 1981·Granted Jan 10, 1984·15 cites·14 claims
- 1546US5550619AElectrophotographic apparatus of improved low image densityMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Aug 27, 1996·7 cites·17 claims
- 1643US2008094461A1Printing Method, Printing Apparatus, And Printing PaperMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Application pending·0 cites
- 1741US5648839AImage forming apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jul 15, 1997·6 cites·35 claims
- 1839US6049688AToner layer forming device for non-magnetic tonerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Apr 11, 2000·5 cites·18 claims
- 1939US2009232524A1Developer supply device, developer supply control method, and developer supply control programMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Application pending·0 cites
- 2038US2007166064A1Image output apparatus, output image control method and output image control programMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Application pending·0 cites
- 2136US2005286086A1Image output apparatus, output image control method, and output image control programMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Application pending·0 cites
- 2224US4689285AMethod for developing electrostatic image using magnetic brush and one component magnetic tonerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1985·Granted Aug 25, 1987·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →