Inventor · disambiguated record
Tohru Sakuwa
Also filed as: SAKUWA TOHRU
13 granted patents·3 pending applications·217 citations·filing 2001–2021
90Inventor score
Top patents by PatentIndex Score
16 records- 0196US6501521B2Transmission/reflection type color liquid crystal display deviceSHARP KK·Filed 2002·Granted Dec 31, 2002·133 cites·11 claims
- 0292US6885418B2Transmission/reflection type color liquid crystal display deviceSHARP KK·Filed 2002·Granted Apr 26, 2005·55 cites·18 claims
- 0378US8139974B2Exhaust device, image forming apparatus including the same, recording medium on which control program for exhaust device is recordedSAKUWA TOHRU·Filed 2010·Granted Mar 20, 2012·4 cites·8 claims
- 0477US7934316B2Charging roller, process cartridge and image forming apparatusSHARP KK·Filed 2009·Granted May 3, 2011·4 cites·3 claims
- 0574US9778590B2Charging device, process cartridge, and image forming apparatusSHARP KK·Filed 2016·Granted Oct 3, 2017·1 cites·16 claims
- 0672US7285158B2Recording agent, image forming device, and image forming methodSHARP KK·Filed 2004·Granted Oct 23, 2007·11 cites·6 claims
- 0762US7706703B2Changing the charging applied voltage control in an image forming apparatus based on an increase in the cumulative number of times of execution of image formingSHARP KK·Filed 2007·Granted Apr 27, 2010·2 cites·21 claims
- 0858US11625000B2Process unit and image forming apparatusSHARP KK·Filed 2021·Granted Apr 11, 2023·0 cites·4 claims
- 0957US7869743B2Image forming apparatus, process cartridge used therein, and production method of charging rollerSHARP KK·Filed 2007·Granted Jan 11, 2011·1 cites·13 claims
- 1056US7894741B2Cleaning device which cleans a contact charging member that is disposed in contact with an image bearing memberSHARP KK·Filed 2008·Granted Feb 22, 2011·1 cites·14 claims
- 1154US6639645B2Warp resistant liquid crystal display deviceSHARP KK·Filed 2001·Granted Oct 28, 2003·5 cites·2 claims
- 1246US2007271792A1Charging roller, process cartridge and image forming apparatusSHARP KK·Filed 2007·Application pending·0 cites
- 1345US10146171B2Image forming apparatus capable of preventing waste toner from entering into processing unitSHARP KK·Filed 2016·Granted Dec 4, 2018·0 cites·8 claims
- 1441US7668484B2Charging roller and image forming apparatus incorporating sameSHARP KK·Filed 2007·Granted Feb 23, 2010·0 cites·7 claims
- 1539US2007212111A1Electric charging device, and image forming apparatusSHARP KK·Filed 2007·Application pending·0 cites
- 1638US2007253738A1Charging device, process cartridge, image forming apparatus and charging methodSHARP KK·Filed 2007·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →