Inventor · disambiguated record
Hirobumi Takahashi
Also filed as: TAKAHASHI HIROBUMI
9 granted patents·55 citations·filing 2003–2022
84Inventor score
Top patents by PatentIndex Score
9 records- 0190US7171142B2Conductive roller, and process cartridge and electrophotographic apparatus which have conductive rollerCANON KASEI KK·Filed 2006·Granted Jan 30, 2007·16 cites·5 claims
- 0285US10558149B2Roller for electrphotography and production method thereof, and electrophotographic image forming apparatusCANON KK·Filed 2018·Granted Feb 11, 2020·2 cites·6 claims
- 0385US6771920B2Charging roller including a conductive cover layer being formed of a seamless tube, process cartridge and electrophotographic image forming apparatus including such a charging rollerCANON KASEI KK·Filed 2003·Granted Aug 3, 2004·25 cites·8 claims
- 0483US9983516B2Roller for electrophotography and production method thereof, and electrophotographic image forming apparatusCANON KK·Filed 2016·Granted May 29, 2018·2 cites·7 claims
- 0562US7171141B2Charging roller, process cartridge and electrophotographic apparatusCANON KASEI KK·Filed 2004·Granted Jan 30, 2007·8 cites·4 claims
- 0661US12346052B2Electrophotographic electro-conductive member, electrophotographic image forming apparatus, and process cartridgeCANON KK·Filed 2022·Granted Jul 1, 2025·0 cites·17 claims
- 0761US7209683B2Charging roller featuring specified ratio of storage elastic modulus and dynamic viscoelasticity values and process cartridge and electrophotographic apparatus featuring the sameCANON KASEI KK·Filed 2006·Granted Apr 24, 2007·2 cites·4 claims
- 0857US12306576B2Electroconductive member, process cartridge, and device for forming electrophotographic imageCANON KK·Filed 2022·Granted May 20, 2025·0 cites·9 claims
- 0941US7283771B2Charging rollerCANON KASEI KK·Filed 2005·Granted Oct 16, 2007·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →