Inventor · disambiguated record
Yasufumi Mizuta
Also filed as: MIZUTA YASUFUMI
20 granted patents·1 pending application·189 citations·filing 1989–2015
94Inventor score
Top patents by PatentIndex Score
21 records- 0188US5550290ABenzidine derivative and electrophotosensitive material using the sameMITA INDUSTRIAL CO LTD·Filed 1994·Granted Aug 27, 1996·35 cites·9 claims
- 0281US5994012ANaphthoquinone derivative and electrophotosensitive material using sameMITA INDUSTRIAL CO LTD·Filed 1997·Granted Nov 30, 1999·19 cites·20 claims
- 0381US5863688ANaphthoquinone derivativeMITA INDUSTRIAL CO LTD·Filed 1996·Granted Jan 26, 1999·26 cites·21 claims
- 0478US6127076ANaphthalenetetracarboxylic acid diimide derivatives and photosensitive material for electrophotographyKYOCERA MITA CORP·Filed 1999·Granted Oct 3, 2000·26 cites·17 claims
- 0571US9285692B2Positively-charged single-layer electrophotographic photoreceptor and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2013·Granted Mar 15, 2016·1 cites·8 claims
- 0671US7555241B2Image forming device using a single-layer-type electrophotographic photoconductor and image forming method using the sameKYOCERA MITA CORP·Filed 2006·Granted Jun 30, 2009·4 cites·9 claims
- 0766US9217981B2Positively-charged single-layer electrophotographic photoreceptor and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2013·Granted Dec 22, 2015·1 cites·6 claims
- 0862US6174638B1Naphthalenetetracarboxylic acid diimide derivatives and photosensitive materials for electrophotographyKYOCERA MITA CORP·Filed 1999·Granted Jan 16, 2001·16 cites·21 claims
- 0958US5063126AElectrophotographic photosensitive materialMITA INDUSTRIAL CO LTD·Filed 1989·Granted Nov 5, 1991·10 cites·16 claims
- 1057US9298112B2Method of manufacturing positively-charged single-layer electrophotographic photoreceptor, positively-charged single-layer electrophotographic photoreceptor, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2013·Granted Mar 29, 2016·0 cites·13 claims
- 1155US5424157AElectrophotosensitive material containing disazo compound as charge-generating agentMITA INDUSTRIAL CO LTD·Filed 1993·Granted Jun 13, 1995·10 cites·6 claims
- 1253US5773613ATryptoanthrinimine derivative and electrophotosensitive material using the sameMITA INDUSTRIAL CO LTD·Filed 1995·Granted Jun 30, 1998·11 cites·7 claims
- 1350US2015160571A1Method of manufacturing positively-charged single-layer electrophotographic photoreceptor, positively-charged single-layer electrophotographic photoreceptor, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2015·Application pending·0 cites
- 1448US5185228AElectrophotosensitive material containing p-benzylbiphenylMITA INDUSTRIAL CO LTD·Filed 1990·Granted Feb 9, 1993·7 cites·12 claims
- 1547US5260157AElectrophotographic photosensitive element comprising a surface protective layer comprising an etherified melamine-formaldehyde resinMITA INDUSTRIAL CO LTD·Filed 1990·Granted Nov 9, 1993·7 cites·12 claims
- 1646US5616441ATryptoanthorine derivative contained in electrophotosensitive materialMITA INDUSTRIAL CO LTD·Filed 1995·Granted Apr 1, 1997·8 cites·8 claims
- 1746US5336576AElectrophotographic photosensitive member having a photosensitive layer comprising the azo compoundMITA INDUSTRIAL CO LTD·Filed 1992·Granted Aug 9, 1994·3 cites·21 claims
- 1837US5705694ATrinitrofluoroenonimine derivative and electrophotosensitive material using the sameMITA INDUSTRIAL CO LTD·Filed 1995·Granted Jan 6, 1998·1 cites·8 claims
- 1935US5274084ABisazo compounds which contain a diphenoquinone tetraazo component and an electrophotographic photosensitive member having a photosensitive layer comprising the bisazo compoundMITA INDUSTRIAL CO LTD·Filed 1992·Granted Dec 28, 1993·1 cites·17 claims
- 2035US5135834AElectrophotographic polyvinyl acetal layer containing element and process of producingMITA INDUSTRIAL CO LTD·Filed 1990·Granted Aug 4, 1992·3 cites·9 claims
- 2129US5288576AElectrophotographic member having an azo compound with diphenoquinoneMITA INDUSTRIAL CO LTD·Filed 1992·Granted Feb 22, 1994·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →