Inventor · disambiguated record
Masateru Yasumura
Also filed as: YASUMURA MASATERU
8 granted patents·4 pending applications·18 citations·filing 2005–2012
80Inventor score
Top patents by PatentIndex Score
12 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
- 0277US7901858B2Mixed 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
- 0376US7820832B2Oxidized 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
- 0475US8232429B2Methods for producing oxidized cyclic phenol sulfidesYASUMURA MASATERU·Filed 2009·Granted Jul 31, 2012·2 cites·12 claims
- 0573US7964626B2Process for producing N,N′-carbonyldiimidazoleHODOGAYA CHEMICAL CO LTD·Filed 2005·Granted Jun 21, 2011·1 cites·10 claims
- 0654US8624065B2Methods for producing oxidized cyclic phenol sulfidesYASUMURA MASATERU·Filed 2012·Granted Jan 7, 2014·0 cites·14 claims
- 0754US8222428B2Method for continuously producing oxidized cyclic phenol sulfidesYASUMURA MASATERU·Filed 2009·Granted Jul 17, 2012·0 cites·14 claims
- 0848US8263786B2Methods for producing cyclic phenol sulfidesYASUMURA MASATERU·Filed 2007·Granted Sep 11, 2012·0 cites·6 claims
- 0942US2011045396A1Charge Controlling Agent and Toner Using Metal Compound of Cyclic Phenol SulfideHODOGAYA CHEMICAL CO LTD·Filed 2009·Application pending·0 cites
- 1036US2013177844A1Charge control agent and toner using sameYASUMURA MASATERU·Filed 2011·Application pending·0 cites
- 1131US2012315576A1Charge controlling agent and toner using sameYASUMURA MASATERU·Filed 2011·Application pending·0 cites
- 1226US2012141931A1Polymerized 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 →