Inventor · disambiguated record
Hachiroh Tosaka
Also filed as: TOSAKA HACHIROH
8 granted patents·426 citations·filing 1996–2013
89Inventor score
Top patents by PatentIndex Score
8 records- 0198US6503676B2Toner, external additive therefor and image forming method using the tonerRICOH KK·Filed 2001·Granted Jan 7, 2003·174 cites·44 claims
- 0297US6432589B1Image formation method, electrophotographic toners, and printed matterRICOH KK·Filed 2000·Granted Aug 13, 2002·99 cites·10 claims
- 0393US6004715AToner for developing electrostatic imagesRICOH KK·Filed 1996·Granted Dec 21, 1999·75 cites·15 claims
- 0485US6737210B2Image formation method, electrophotographic toners, and printed matterRICOH KK·Filed 2002·Granted May 18, 2004·25 cites·5 claims
- 0582US5882832AOne component developer developing method and dry toner thereforRICOH KK·Filed 1997·Granted Mar 16, 1999·38 cites·18 claims
- 0671US7250240B2Toner, developer, container containing toner, process, cartridge, image forming apparatus and processRICOH KK·Filed 2004·Granted Jul 31, 2007·13 cites·18 claims
- 0765US8372569B2Toner, and image forming method and process cartridge using the tonerRICOH CO LTD·Filed 2007·Granted Feb 12, 2013·2 cites·9 claims
- 0857US9256147B2Toner, and image forming method and process cartridge using the tonerRICOH CO LTD·Filed 2013·Granted Feb 9, 2016·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →