Inventor · disambiguated record
Seiji Tsuru
Also filed as: TSURU SEIJI
21 granted patents·4 pending applications·504 citations·filing 1985–2023
96Inventor score
Top patents by PatentIndex Score
25 records- 0197US9811021B2Conductive memberCANON KK·Filed 2015·Granted Nov 7, 2017·31 cites·6 claims
- 0295US10678161B2Electrophotographic member having elastic layer with elastic modulus of 0.5 to 3.0 MPA and coating layer with elastic modulus of 5.0 to 100 MPACANON KK·Filed 2019·Granted Jun 9, 2020·10 cites·16 claims
- 0395US9625854B2Developer carrying member, electrophotographic process cartridge, and electrophotographic image forming apparatusCANON KK·Filed 2015·Granted Apr 18, 2017·26 cites·5 claims
- 0495US9023465B2Electroconductive member, process cartridge and electrophotographic image forming apparatusYAMADA SATORU·Filed 2011·Granted May 5, 2015·37 cites·8 claims
- 0594US8449975B2Electroconductive member, process cartridge and electrophotographic apparatusHIRAKOSO YUKA·Filed 2011·Granted May 28, 2013·40 cites·5 claims
- 0694US8298670B2Electro-conductive member for electrophotography, process cartridge, and electrophotographic apparatusMURANAKA NORIFUMI·Filed 2011·Granted Oct 30, 2012·39 cites·5 claims
- 0794US4664601AOperation control system of rotary displacement type vacuum pumpHITACHI LTD·Filed 1985·Granted May 12, 1987·64 cites·9 claims
- 0893US10996581B2Conductive memberCANON KK·Filed 2017·Granted May 4, 2021·7 cites·6 claims
- 0992US10635019B2Developing roller, electrophotographic process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2019·Granted Apr 28, 2020·6 cites·11 claims
- 1089US6679689B2Screw compressorHITACHI LTD·Filed 2000·Granted Jan 20, 2004·27 cites·9 claims
- 1187US5613843APackage-type screw compressorHITACHI LTD·Filed 1995·Granted Mar 25, 1997·47 cites·17 claims
- 1286US11971668B2Electrophotographic roller, process cartridge and electrophotographic image forming apparatusCANON KK·Filed 2023·Granted Apr 30, 2024·2 cites·11 claims
- 1386US4770609ATwo-stage vacuum pump apparatus and method of operating the sameHITACHI LTD·Filed 1987·Granted Sep 13, 1988·38 cites·5 claims
- 1485US5401149APackage-type screw compressor having coated rotorsHITACHI LTD·Filed 1993·Granted Mar 28, 1995·40 cites·30 claims
- 1584US6572350B2Screw compressorHITACHI LTD·Filed 2002·Granted Jun 3, 2003·19 cites·3 claims
- 1681US6517325B2Air compressor and method of operating the sameHITACHI LTD·Filed 2001·Granted Feb 11, 2003·20 cites·10 claims
- 1773US6962746B2Conductive member, and process cartridge and electrophotographic apparatus which make use of the sameCANON KK·Filed 2003·Granted Nov 8, 2005·19 cites·17 claims
- 1868US7172015B2Heat exchanger for air compressorHITACHI PLANT TECHNOLOGIES LTD·Filed 2004·Granted Feb 6, 2007·9 cites·4 claims
- 1965US7136781B2Compressor remote monitoring systemHITACHI PLANT TECHNOLOGIES LTD·Filed 2002·Granted Nov 14, 2006·6 cites·18 claims
- 2064US7054579B2Charging member, process cartridge, and electrophotographic apparatusCANON KK·Filed 2004·Granted May 30, 2006·9 cites·27 claims
- 2157US6599094B2Screw compressor system and operating method thereofHITACHI LTD·Filed 2001·Granted Jul 29, 2003·8 cites·11 claims
- 2253US2012251171A1Conductive memberMURANAKA NORIFUMI·Filed 2012·Application pending·0 cites
- 2351US2013130022A1Member for electrophotography, process cartridge, and electrophotographic apparatusCANON KK·Filed 2013·Application pending·0 cites
- 2442US2002050345A1Heat exchanger for air compressorFiled 2001·Application pending·0 cites
- 2538US2012308261A1Conductive member, process cartridge, and electrophotographic apparatusTSURU SEIJI·Filed 2012·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →