Inventor · disambiguated record
Toshifumi Sakai
Also filed as: SAKAI TOSHIFUMI
67 granted patents·13 pending applications·613 citations·filing 1985–2025
98Inventor score
Files withSEIKO EPSON CORP45TOYODA MACHINE WORKS LTD11JTEKT CORP4SAKAI TOSHIFUMI4TOYOTA MOTOR CO LTD4
Top patents by PatentIndex Score
80 records- 0198US9994037B2Liquid containerSEIKO EPSON CORP·Filed 2016·Granted Jun 12, 2018·19 cites·5 claims
- 0295US4905808ATorque transmission device for a four-wheel drive vehicleTOYODA MACHINE WORKS LTD·Filed 1988·Granted Mar 6, 1990·66 cites·18 claims
- 0393US11789678B2Printing apparatus and printing systemSEIKO EPSON CORP·Filed 2022·Granted Oct 17, 2023·2 cites·9 claims
- 0493US8541971B2Driving system of permanent magnet synchronous motorSAKAI TOSHIFUMI·Filed 2010·Granted Sep 24, 2013·22 cites·20 claims
- 0593US6109408ADriving force transmission systemTOYOTA MOTOR CO LTD·Filed 1998·Granted Aug 29, 2000·50 cites·39 claims
- 0690US5056640ATorque transmission device for a four-wheel drive vehicleTOYOTA MOTOR CORP·Filed 1989·Granted Oct 15, 1991·42 cites·3 claims
- 0788US11262907B2Display device and non-transitory computer-readable storage medium storing display programSEIKO EPSON CORP·Filed 2020·Granted Mar 1, 2022·2 cites·9 claims
- 0886US10601103B2AntennaFURUNO ELECTRIC CO·Filed 2018·Granted Mar 24, 2020·5 cites·20 claims
- 0986US5988713ABumper reinforcementDAIKO KK·Filed 1997·Granted Nov 23, 1999·72 cites·4 claims
- 1082US11460978B2Display apparatus and non-transitory computer-readable storage medium storing display control programSEIKO EPSON CORP·Filed 2020·Granted Oct 4, 2022·2 cites·12 claims
- 1178US9224379B2Acoustic decorative materialTAKEDA YOSHIHIKO·Filed 2012·Granted Dec 29, 2015·9 cites·16 claims
- 1278US7938228B2Process for producing sound absorber and produced by the process, sound absorber and sound absorbing structurePRIME POLYMER CO LTD·Filed 2006·Granted May 10, 2011·5 cites·6 claims
- 1377US6920968B2Clutch plate, friction clutch, and coupling deviceTOYODA MACHINE WORKS LTD·Filed 2002·Granted Jul 26, 2005·12 cites·11 claims
- 1477US6510932B2Driving force transmission systemTOYOTA MOTOR CO LTD·Filed 2001·Granted Jan 28, 2003·11 cites·7 claims
- 1576US7677375B2Drive force transmission deviceJTEKT CORP·Filed 2006·Granted Mar 16, 2010·5 cites·8 claims
- 1676US5197583ATorque transmission deviceTOYODA MACHINE WORKS LTD·Filed 1991·Granted Mar 30, 1993·41 cites·5 claims
- 1774US5031743ADriving power transmissionTOYODA MACHINE WORKS LTD·Filed 1989·Granted Jul 16, 1991·25 cites·7 claims
- 1873US6494510B2Impact absorbing mechanism and bumper reinforcement having the mechanismG P DAIKYO CORP·Filed 2001·Granted Dec 17, 2002·23 cites·9 claims
- 1973US5954173ADrive force transmission apparatusTOYODA MACHINE WORKS LTD·Filed 1997·Granted Sep 21, 1999·25 cites·6 claims
- 2073US5007885ADriving torque transmitting deviceTOYODA MACHINE WORKS LTD·Filed 1989·Granted Apr 16, 1991·29 cites·5 claims
- 2172US2025229541A1Printing system, printed object production method, and non-transitory computer-readable storage medium storing programSEIKO EPSON CORP·Filed 2025·Application pending·0 cites
- 2271US10447885B2Scanner system and image data generating methodSEIKO EPSON CORP·Filed 2017·Granted Oct 15, 2019·1 cites·6 claims
- 2371US10158766B2Scanner, and image data generating methodSEIKO EPSON CORP·Filed 2017·Granted Dec 18, 2018·1 cites·9 claims
- 2470US11654696B2Printing apparatusSEIKO EPSON CORP·Filed 2021·Granted May 23, 2023·0 cites·9 claims
- 2570US6315099B1Driving force transmission systemTOYOTA MOTOR CO LTD·Filed 2000·Granted Nov 13, 2001·8 cites·12 claims
- 2669US5305858ARotary shock absorber having vanes with radial flow clearanceTOYODA MACHINE WORKS LTD·Filed 1992·Granted Apr 26, 1994·34 cites·4 claims
- 2767US12456026B2Printing system and printed matter production methodSEIKO EPSON CORP·Filed 2023·Granted Oct 28, 2025·0 cites·10 claims
- 2866US12008281B2Job execution deviceSEIKO EPSON CORP·Filed 2023·Granted Jun 11, 2024·0 cites·7 claims
- 2966US7270205B2Vehicle drive device, and front-and-rear wheel-driven vehicle formed of the deviceJTEKT CORP·Filed 2003·Granted Sep 18, 2007·16 cites·9 claims
- 3065US10909361B2Receipt processing apparatus, program, and report production methodSEIKO EPSON CORP·Filed 2019·Granted Feb 2, 2021·1 cites·13 claims
- 3165US7864355B2Apparatus and method for transmitting imageSEIKO EPSON CORP·Filed 2007·Granted Jan 4, 2011·2 cites·12 claims
- 3264US12153842B2Printing device, non-transitory computer- readable storage medium storing program, and printing methodSEIKO EPSON CORP·Filed 2023·Granted Nov 26, 2024·0 cites·7 claims
- 3364US11738566B2Printing program and producing method for printSEIKO EPSON CORP·Filed 2021·Granted Aug 29, 2023·0 cites·11 claims
- 3464US11455091B2Display device and non-transitory computer-readable storage medium storing display control programSEIKO EPSON CORP·Filed 2021·Granted Sep 27, 2022·0 cites·12 claims
- 3564US8184346B2Status sending facsimile transmission system, status sending facsimile receiving device, and status sending facsimile receiving methodOZAWA TAKAO·Filed 2007·Granted May 22, 2012·3 cites·12 claims
- 3663US7364014B2Sound absorbing body, sound absorbing structural body, and method of manufacturing these bodiesPRIME POLYMER CO LTD·Filed 2003·Granted Apr 29, 2008·8 cites·19 claims
- 3763US2024100776A1Printing system and method of producing replicaSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 3862US11914908B2Print management system and print management methodSEIKO EPSON CORP·Filed 2023·Granted Feb 27, 2024·0 cites·9 claims
- 3962US5072657ABlowing louver with swinging fins for air conditionersDAIKO KK·Filed 1990·Granted Dec 17, 1991·26 cites·8 claims
- 4061US11068142B2Display device and non-transitory computer-readable storage medium storing display control programSEIKO EPSON CORP·Filed 2020·Granted Jul 20, 2021·0 cites·6 claims
- 4161US8025370B2Liquid ejecting head and liquid ejecting apparatusSEIKO EPSON CORP·Filed 2008·Granted Sep 27, 2011·2 cites·5 claims
- 4260US11104148B2PrinterSEIKO EPSON CORP·Filed 2020·Granted Aug 31, 2021·0 cites·11 claims
- 4360US7815028B2Clutch plate, friction clutch, and coupling deviceJTEKT CORP·Filed 2003·Granted Oct 19, 2010·5 cites·24 claims
- 4460US4599051AVane type rotary pumpTOYOTA MOTOR CO LTD·Filed 1985·Granted Jul 8, 1986·16 cites·2 claims
- 4559US12106000B2Printed material production system, printing method, and non-transitory computer-readable storage medium storing printed material production programSEIKO EPSON CORP·Filed 2023·Granted Oct 1, 2024·0 cites·5 claims
- 4659US11590767B2Printing program and producing method for printSEIKO EPSON CORP·Filed 2021·Granted Feb 28, 2023·0 cites·6 claims
- 4758US11849096B2Printer for two-color copyingSEIKO EPSON CORP·Filed 2022·Granted Dec 19, 2023·0 cites·9 claims
- 4858US2024144563A1Printed matter production system and non-transitory computer-readable storage medium storing signature image production programSEIKO EPSON CORP·Filed 2023·Application pending·0 cites
- 4956US11720293B2Printing apparatus and method of producing printed itemSEIKO EPSON CORP·Filed 2022·Granted Aug 8, 2023·0 cites·10 claims
- 5055US12309331B2Method executing function via scanner to display first button causing screen transition to setting screen, second and third buttons causing scanner to perform scan, non-transitory computer-readable storage medium storing program for display functionSEIKO EPSON CORP·Filed 2023·Granted May 20, 2025·0 cites·7 claims
Showing the top 50 of 80 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →