Inventor · disambiguated record
Tsutomu Katsumata
Also filed as: KATSUMATA TSUTOMU
27 granted patents·9 pending applications·318 citations·filing 1978–2022
96Inventor score
Top patents by PatentIndex Score
36 records- 0189US5198154AHigh temperature baking pasteASAHI CHEMICAL IND·Filed 1991·Granted Mar 30, 1993·81 cites·13 claims
- 0288US6083428AFlame-retardant resin compositionASAHI CHEMICAL IND·Filed 1996·Granted Jul 4, 2000·50 cites·2 claims
- 0388US4443556ACatalyst compositionASAHI CHEMICAL IND·Filed 1982·Granted Apr 17, 1984·26 cites·5 claims
- 0486US7900320B2Opening/closing device for document pressing deviceKATSUMATA TSUTOMU·Filed 2007·Granted Mar 8, 2011·12 cites·1 claims
- 0585US9921504B2Toner having low temperature fixing and high durability characteristicsTOSHIBA KK·Filed 2016·Granted Mar 20, 2018·2 cites·9 claims
- 0684US5242511ACopper alloy compositionsASAHI CHEMICAL IND·Filed 1991·Granted Sep 7, 1993·57 cites·16 claims
- 0782US9785073B2TonerTOSHIBA KK·Filed 2015·Granted Oct 10, 2017·2 cites·8 claims
- 0882US4517389AProcess for methylating the ortho position of a phenolASAHI CHEMICAL IND·Filed 1983·Granted May 14, 1985·18 cites·3 claims
- 0981US10663877B2Image forming apparatus, toner cartridge set, toner image, and image forming methodTOSHIBA KK·Filed 2018·Granted May 26, 2020·1 cites·10 claims
- 1080US10591829B2Toner having low temperature fixing and high durability characteristicsTOSHIBA KK·Filed 2018·Granted Mar 17, 2020·1 cites·16 claims
- 1178US10078284B2TonerTOSHIBA KK·Filed 2017·Granted Sep 18, 2018·1 cites·7 claims
- 1276US4599145ARecovery process for producing purified methacrylonitrileASAHI CHEMICAL IND·Filed 1983·Granted Jul 8, 1986·13 cites·9 claims
- 1369US10620559B2Image forming apparatus, toner cartridge set, toner image, and image forming methodTOSHIBA KK·Filed 2018·Granted Apr 14, 2020·0 cites·18 claims
- 1468US11022907B2Image forming apparatus, toner cartridge set, toner image, and image forming methodTOSHIBA KK·Filed 2020·Granted Jun 1, 2021·0 cites·20 claims
- 1563US4228098AProcess for the preparation of acrylonitrileASAHI CHEMICAL IND·Filed 1978·Granted Oct 14, 1980·15 cites·8 claims
- 1662US8302262B2Hinge device of plane displayKATSUMATA TSUTOMU·Filed 2008·Granted Nov 6, 2012·4 cites·8 claims
- 1761US7789364B2Opening device for display monitor of projector systemSIMOTEC INC·Filed 2007·Granted Sep 7, 2010·1 cites·4 claims
- 1860US7639481B2Hinge device of plane displaySIMOTEC INC·Filed 2007·Granted Dec 29, 2009·6 cites·6 claims
- 1954US12026504B2Control system and control method of control systemTOYOTA MOTOR CO LTD·Filed 2022·Granted Jul 2, 2024·0 cites·7 claims
- 2053US8013107B2Process for producing polyalkylene terephthalate, process for producing polyalkylene terephthalate molding and polyalkylene terephthalate moldingASAHI KASEI CHEMICALS CORP·Filed 2004·Granted Sep 6, 2011·1 cites·11 claims
- 2151US6153749AProcess for the preparation of acylated hexaazaisowurtzitane derivativesASAHI CHEMICAL IND·Filed 1997·Granted Nov 28, 2000·5 cites·26 claims
- 2251US4541964AProduction of methacrylonitrileASAHI KASEI KASYO KABUSHIKI KA·Filed 1984·Granted Sep 17, 1985·10 cites·7 claims
- 2350US2008149800A1Flat display drive apparatusKATSUMATA TSUTOMU·Filed 2007·Application pending·0 cites
- 2447US2007199178A1HingeKATSUMATA TSUTOMU·Filed 2007·Application pending·0 cites
- 2547US2008010777A1Hinge damper in opening/closing deviceKATSUMATA TSUTOMU·Filed 2007·Application pending·0 cites
- 2645US4456563AProcess for producing malononitrileASAHI CHEMICAL IND·Filed 1981·Granted Jun 26, 1984·7 cites·5 claims
- 2742US7758006B2Swivel device for monitorSIMOTEC INC·Filed 2007·Granted Jul 20, 2010·0 cites·1 claims
- 2841US5279494ASheet finisher with standard type staplerCANON KK·Filed 1992·Granted Jan 18, 1994·5 cites·35 claims
- 2941US2009075194A1Developing agent, method for manufacturing a developing agent, and image forming apparatusTOSHIBA KK·Filed 2008·Application pending·0 cites
- 3040US2008241725A1Toner for developing agent and method for producing the sameTOSHIBA KK·Filed 2008·Application pending·0 cites
- 3139US10197932B2TonerTOSHIBA KK·Filed 2015·Granted Feb 5, 2019·0 cites·8 claims
- 3238US7963648B2Original cover closerSIMOTEC INC·Filed 2007·Granted Jun 21, 2011·0 cites·2 claims
- 3337US2011183251A1Developing agent and method for manufacturing the sameTOSHIBA KK·Filed 2011·Application pending·0 cites
- 3436US2011281210A1Developing agentKATSUMATA TSUTOMU·Filed 2011·Application pending·0 cites
- 3536US2011008063A1Toner cartridgeTOSHIBA KK·Filed 2010·Application pending·0 cites
- 3629US2009154974A1Original cover closer with quickly adjustable energy absorption capabilitySIMOTEC INC·Filed 2007·Application pending·0 cites
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