Inventor · disambiguated record
Seishi Ojima
Also filed as: OJIMA SEISHI
30 granted patents·3 pending applications·229 citations·filing 1991–2023
96Inventor score
Files withMINOLTA CO LTD12KYOCERA DOCUMENT SOLUTIONS INC8MINOLTA CAMERA KK5KONICA MINOLTA BUSINESS TECH3WADA MINORU2
Top patents by PatentIndex Score
33 records- 0188US5242776AOrganic photosensitive member having fine irregularities on its surfaceMINOLTA CAMERA KK·Filed 1991·Granted Sep 7, 1993·36 cites·11 claims
- 0283US10018932B1Electrostatic latent image developing tonerKYOCERA DOCUMENT SOLUTIONS INC·Filed 2016·Granted Jul 10, 2018·2 cites·4 claims
- 0381US5504560APhotosensitive member-protective shutterMINOLTA CO LTD·Filed 1994·Granted Apr 2, 1996·28 cites·30 claims
- 0479US5504559AMethod for image formationMINOLTA CO LTD·Filed 1994·Granted Apr 2, 1996·24 cites·43 claims
- 0576US5780196AToner and liquid developer, liquid developer, and method of producing sameMINOLTA CO LTD·Filed 1996·Granted Jul 14, 1998·24 cites·15 claims
- 0673US9535352B2Electrostatic latent image developing toner and manufacturing method of the sameKYOCERA DOCUMENT SOLUTIONS INC·Filed 2015·Granted Jan 3, 2017·1 cites·13 claims
- 0772US5242773APhotosensitive member having fine cracks in surface protective layerMINOLTA CAMERA KK·Filed 1991·Granted Sep 7, 1993·18 cites·7 claims
- 0872US2024174873A1Inkjet ink and injket ink production methodKYOCERA DOCUMENT SOLUTIONS INC·Filed 2023·Application pending·0 cites
- 0968US5953566AColor image forming method and apparatus providing for efficient toner transfer based on toner zeta potentialsMINOLTA CO LTD·Filed 1998·Granted Sep 14, 1999·18 cites·20 claims
- 1064US8428497B2Developing device and image forming apparatus provided with sameWADA MINORU·Filed 2010·Granted Apr 23, 2013·1 cites·14 claims
- 1164US8190072B2Developing device and image forming apparatus having the sameWADA MINORU·Filed 2009·Granted May 29, 2012·2 cites·16 claims
- 1264US5981134ALiquid developer for electrophotographyMINOLTA CO LTD·Filed 1998·Granted Nov 9, 1999·15 cites·26 claims
- 1363US5981133ALiquid developer and image forming apparatusMINOLTA CO LTD·Filed 1998·Granted Nov 9, 1999·14 cites·22 claims
- 1462US8494418B2Development device and image forming apparatus having the sameMABUCHI SAYO·Filed 2010·Granted Jul 23, 2013·1 cites·18 claims
- 1559US2021139726A1Inkjet ink and image forming methodKYOCERA DOCUMENT SOLUTIONS INC·Filed 2020·Application pending·0 cites
- 1656US9250551B2Method for manufacturing electrostatic latent image developing tonerKYOCERA DOCUMENT SOLUTIONS INC·Filed 2014·Granted Feb 2, 2016·0 cites·6 claims
- 1755US6991885B2Non-magnetic one-component toner, non-magnetic one-component contact developing device and image-forming apparatusMINOLTA CO LTD·Filed 2003·Granted Jan 31, 2006·5 cites·22 claims
- 1854US10007202B2Positively chargeable tonerKYOCERA DOCUMENT SOLUTIONS INC·Filed 2016·Granted Jun 26, 2018·0 cites·11 claims
- 1954US6146804AElectrophotographic liquid developer and image forming apparatusMINOLTA CO LTD·Filed 1999·Granted Nov 14, 2000·10 cites·19 claims
- 2050US7476481B2Electrostatic charge image developing toner and production process for the sameKONICA MINOLTA BUSINESS TECH·Filed 2004·Granted Jan 13, 2009·4 cites·13 claims
- 2148US10126669B2Electrostatic latent image developing tonerKYOCERA DOCUMENT SOLUTIONS INC·Filed 2017·Granted Nov 13, 2018·0 cites·9 claims
- 2248US5572294AContact charger and image forming apparatus provided with sameMINOLTA CO LTD·Filed 1994·Granted Nov 5, 1996·7 cites·27 claims
- 2344US9436109B2Method of manufacturing resin particles, apparatus for manufacturing resin particles, and image forming apparatusKYOCERA DOCUMENT SOLUTIONS INC·Filed 2013·Granted Sep 6, 2016·0 cites·3 claims
- 2442US7465526B2Electrostatic latent image developing tonerKONICA MINOLTA BUSINESS TECH·Filed 2005·Granted Dec 16, 2008·0 cites·16 claims
- 2542US5623716AProcess for image forming using a photosensitive member having an amorphous carbon layer as an outermost surface layerMINOLTA CAMERA KK·Filed 1994·Granted Apr 22, 1997·5 cites·12 claims
- 2641US5536610APhotosensitive member having surface protective layer with specified optical propertiesMINOLTA CAMERA KK·Filed 1994·Granted Jul 16, 1996·6 cites·27 claims
- 2738US5774169AImage forming apparatusMINOLTA CO LTD·Filed 1996·Granted Jun 30, 1998·5 cites·9 claims
- 2837US5557372AContact charger and image forming apparatus provided with sameMINOLTA CO LTD·Filed 1994·Granted Sep 17, 1996·3 cites·21 claims
- 2937US2002141702A1Diffraction grating, optical element and manufacturing methods of the sameFiled 2002·Application pending·0 cites
- 3035US7175959B2Toner and production process for the sameKONICA MINOLTA BUSINESS TECH·Filed 2004·Granted Feb 13, 2007·0 cites·15 claims
- 3130US5155002AImage forming methodMINOLTA CAMERA KK·Filed 1991·Granted Oct 13, 1992·0 cites·12 claims
- 3229US8583015B2Developing device with a thickness regulating member for regulating a thickness of a developer on a developer carrying body and image forming apparatus comprising sameOJIMA SEISHI·Filed 2010·Granted Nov 12, 2013·0 cites·12 claims
- 3329US6728194B1Optical recording medium, method of making the same and optical memory device using the optical memory mediumMINOLTA CO LTD·Filed 1999·Granted Apr 27, 2004·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →