Inventor · disambiguated record
Masami Ito
Also filed as: ITO MASAMI
14 granted patents·6 pending applications·25 citations·filing 1988–2014
87Inventor score
Top patents by PatentIndex Score
20 records- 0182US7709172B2Oxidized mixed cyclic phenol sulfides, and charge control agents and toners using the sameHODOGAYA CHEMICAL CO LTD·Filed 2008·Granted May 4, 2010·6 cites·8 claims
- 0281US7402369B2Mono azo iron complex compound, and charge controlling agent and toner using the sameHODOGAYA CHEMICAL CO LTD·Filed 2006·Granted Jul 22, 2008·5 cites·10 claims
- 0377US7901858B2Mixed cyclic phenol sulfides, and charge control agents and toners using the sameHODOGAYA CHEMICAL CO LTD·Filed 2008·Granted Mar 8, 2011·5 cites·3 claims
- 0476US7820832B2Oxidized mixed cyclic phenol sulfides, and charge control agents and toners using the sameHODOGAYA CHEMICAL CO LTD·Filed 2009·Granted Oct 26, 2010·4 cites·8 claims
- 0575US8232429B2Methods for producing oxidized cyclic phenol sulfidesYASUMURA MASATERU·Filed 2009·Granted Jul 31, 2012·2 cites·12 claims
- 0672US9703223B2Toner, developer, and toner cartridgeHODOGAYA CHEMICAL CO LTD·Filed 2014·Granted Jul 11, 2017·2 cites·9 claims
- 0754US8624065B2Methods for producing oxidized cyclic phenol sulfidesYASUMURA MASATERU·Filed 2012·Granted Jan 7, 2014·0 cites·14 claims
- 0854US8222428B2Method for continuously producing oxidized cyclic phenol sulfidesYASUMURA MASATERU·Filed 2009·Granted Jul 17, 2012·0 cites·14 claims
- 0954US2014205945A1Charge controlling agent and toner using sameHODOGAYA CHEMICAL CO LTD·Filed 2014·Application pending·0 cites
- 1050US9835965B2Charge control agent and toner using sameHODOGAYA CHEMICAL CO LTD·Filed 2014·Granted Dec 5, 2017·0 cites·9 claims
- 1148US8263786B2Methods for producing cyclic phenol sulfidesYASUMURA MASATERU·Filed 2007·Granted Sep 11, 2012·0 cites·6 claims
- 1243US2013149641A1Charge controlling agent and toner using sameKIMURA IKUO·Filed 2011·Application pending·0 cites
- 1342US2011045396A1Charge Controlling Agent and Toner Using Metal Compound of Cyclic Phenol SulfideHODOGAYA CHEMICAL CO LTD·Filed 2009·Application pending·0 cites
- 1436US2013177844A1Charge control agent and toner using sameYASUMURA MASATERU·Filed 2011·Application pending·0 cites
- 1531US5240898AHeat sensitive recording materialHODOGAYA CHEMICAL CO LTD·Filed 1992·Granted Aug 31, 1993·0 cites·6 claims
- 1631US4798913AMethod for separating a trihalogenobenzene isomerHODOGAYA CHEMICAL CO LTD·Filed 1988·Granted Jan 17, 1989·1 cites·10 claims
- 1731US2012315576A1Charge controlling agent and toner using sameYASUMURA MASATERU·Filed 2011·Application pending·0 cites
- 1828US8790855B2Charge control agent and toner using sameKIMURA IKUO·Filed 2011·Granted Jul 29, 2014·0 cites·12 claims
- 1926US8900785B2Charge control agent and toner using the sameKIMURA IKUO·Filed 2011·Granted Dec 2, 2014·0 cites·7 claims
- 2026US2012141931A1Polymerized Toner Comprising Cyclic Phenol SulfideYASUMURA MASATERU·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →