Inventor · disambiguated record
Yoshinobu Okumura
Also filed as: OKUMURA YOSHINOBU
21 granted patents·7 pending applications·268 citations·filing 1992–2013
95Inventor score
Top patents by PatentIndex Score
28 records- 0191US7668494B2Fixing apparatusSHARP KK·Filed 2006·Granted Feb 23, 2010·13 cites·6 claims
- 0290US5700593AMetal thin film magnetic recording medium and manufacturing method thereofKUBOTA KK·Filed 1994·Granted Dec 23, 1997·53 cites·19 claims
- 0387US7790647B2Catalyst layer for polymer electrolyte fuel cell, process for producing the catalyst layer, and polymer electrolyte fuel cellCANON KK·Filed 2006·Granted Sep 7, 2010·7 cites·9 claims
- 0484US7727674B2Nonaqueous secondary batterySANYO ELECTRIC CO·Filed 2006·Granted Jun 1, 2010·6 cites·13 claims
- 0583US7258948B2Non-aqueous electrolyte secondary battery and manufacturing methods of an electrode used thereinSANYO ELECTRIC CO·Filed 2004·Granted Aug 21, 2007·24 cites·8 claims
- 0682US6599660B2Battery module and method of manufacturing thereofSANYO ELECTRIC CO·Filed 2001·Granted Jul 29, 2003·26 cites·12 claims
- 0782US5314745AMagnetic recording medium having a glass substrate, heat retaining non magnetic metal layer formed over the substrate, amorphous nip layer, Cr layer and magnetic layerKUBOTA KK·Filed 1992·Granted May 24, 1994·32 cites·6 claims
- 0869US5480733AMetal thin film magnetic recording mediumKUBOTA KK·Filed 1994·Granted Jan 2, 1996·29 cites·10 claims
- 0965US7366447B2Image forming apparatus having non-contact charging rollerSHARP KK·Filed 2004·Granted Apr 29, 2008·9 cites·9 claims
- 1064US8603697B2Catalyst layer for solid polymer electrolyte fuel cell including catalyst with dendritic structure and method of producing the sameMIYAZAKI KAZUYA·Filed 2005·Granted Dec 10, 2013·1 cites·12 claims
- 1163US6030076AInk jet dyeing apparatusSHARP KK·Filed 1997·Granted Feb 29, 2000·20 cites·20 claims
- 1260US7841596B2Sheet feederSHARP KK·Filed 2007·Granted Nov 30, 2010·2 cites·6 claims
- 1358US5789090AMetallic thin-film magnetic recording mediaSTORMEDIA INC·Filed 1996·Granted Aug 4, 1998·25 cites·7 claims
- 1455US8737884B2Charging member and electrophotographic image forming apparatusCANON KK·Filed 2012·Granted May 27, 2014·0 cites·7 claims
- 1554US2009239118A1Catalyst layer for solid polymer fuel cell, membrane electrode assembly, and fuel cellCANON KK·Filed 2009·Application pending·0 cites
- 1653US6783887B2Method and apparatus for manufacturing battery module and unit battery cell for use in battery moduleSANYO ELECTRIC CO·Filed 2001·Granted Aug 31, 2004·2 cites·13 claims
- 1750US2013156992A1Antistatic polyester resin molded bodyCANON KK·Filed 2012·Application pending·0 cites
- 1849US6049345AImage forming apparatus selectively charging toner using doctor bladeSHARP KK·Filed 1995·Granted Apr 11, 2000·10 cites·5 claims
- 1947US2009311578A1Water repellent catalyst layer for polymer electrolyte fuel cell and manufacturing method for the sameCANON KK·Filed 2007·Application pending·0 cites
- 2046US7163565B2Electrode plate for secondary battery, method of manufacturing the same, and secondary battery using the sameSANYO ELECTRIC CO·Filed 2004·Granted Jan 16, 2007·3 cites·14 claims
- 2146US2009130514A1Membrane electrode assembly for fuel cell, method of producing same, and fuel cellCANON KK·Filed 2005·Application pending·0 cites
- 2245US2008268326A1Catalyst layer, membrane electrode assembly, fuel cell having membrane electrode assembly, method of producing catalyst layer, and method of producing membrane electrode assemblyCANON KK·Filed 2008·Application pending·0 cites
- 2345US2013337254A1Polyester molded body and method for producing the sameCANON KK·Filed 2013·Application pending·0 cites
- 2444US7280947B2Gear-driving-system designing systemSHARP KK·Filed 2003·Granted Oct 9, 2007·0 cites·20 claims
- 2543US5585893AImage forming apparatusSHARP KK·Filed 1995·Granted Dec 17, 1996·6 cites·28 claims
- 2639US2013114978A1Charging member, electrophotographic image forming apparatus and electrophotographic image forming processCANON KK·Filed 2012·Application pending·0 cites
- 2729US5837389AMetal thin film magnetic recording medium having a Cr Ta Cu underlayer and a copt magnetic layerSTORMEDIA INC·Filed 1997·Granted Nov 17, 1998·0 cites·1 claims
- 2826US6014292AMagnetic recording medium and magnetic head assembly with a medium magnetic coating having a high product of residual magnetization and thicknessSILMAG SA·Filed 1997·Granted Jan 11, 2000·0 cites·4 claims
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