Inventor · disambiguated record
Hiroshi Tohmatsu
Also filed as: TOHMATSU HIROSHI
23 granted patents·1 pending application·111 citations·filing 1995–2016
94Inventor score
Top patents by PatentIndex Score
24 records- 0196US7985711B2Thermosensitive recording material and recording method using the sameRICOH CO LTD·Filed 2008·Granted Jul 26, 2011·31 cites·12 claims
- 0294US8283287B2Thermosensitive recording materialAIHARA HIDEO·Filed 2008·Granted Oct 9, 2012·29 cites·10 claims
- 0383US9304427B2Carrier for developing an electrostatic latent image, developer and image forming apparatusIWATSUKI HITOSHI·Filed 2013·Granted Apr 5, 2016·3 cites·19 claims
- 0482US8916325B2Carrier for developing electrostatic latent image, tow-component developer and image forming methodYAGUCHI SHIGENORI·Filed 2013·Granted Dec 23, 2014·3 cites·9 claims
- 0582US8663892B2Latent electrostatic image developing carrier, process cartridge and image forming apparatusYAGUCHI SHIGENORI·Filed 2012·Granted Mar 4, 2014·3 cites·13 claims
- 0679US9229347B2Carrier for two-component developer, two-component developer using the carrier, and process cartridge and image forming method and apparatus using the two component developerKISHIDA HIROYUKI·Filed 2013·Granted Jan 5, 2016·2 cites·8 claims
- 0779US8227379B2Thermosensitive recording medium and recording methodOKADA SHINJI·Filed 2009·Granted Jul 24, 2012·3 cites·18 claims
- 0877US9261817B2Replenishing developer housing container and image forming apparatusRICOH CO LTD·Filed 2014·Granted Feb 16, 2016·2 cites·20 claims
- 0975US9298119B2Carrier for two-component developer, two-component developer using the carrier, and image forming method and process cartridge using the two-component developerYAGUCHI SHIGENORI·Filed 2014·Granted Mar 29, 2016·2 cites·8 claims
- 1075US8652738B2Contact developing method, image forming apparatus, and process cartridgeYAMAGUCHI KIMITOSHI·Filed 2011·Granted Feb 18, 2014·2 cites·10 claims
- 1170US8637218B2Carrier for developing electrostatic latent image and developerSAKATA KOICHI·Filed 2012·Granted Jan 28, 2014·1 cites·11 claims
- 1269US8918025B2Image forming method and image forming apparatusTOHMATSU HIROSHI·Filed 2012·Granted Dec 23, 2014·2 cites·8 claims
- 1369US8512928B2Carrier for developing electrostatic latent image, and two-component developer, supplemental developer, image forming apparatus, process cartridge, and image forming method using the carrierKISHIDA HIROYUKI·Filed 2011·Granted Aug 20, 2013·1 cites·18 claims
- 1468US8652735B2Carrier, developer, method of manufacturing carrier, developer container, image forming method, process cartridge, image forming apparatus, and supplemental developerSAKATA KOICHI·Filed 2011·Granted Feb 18, 2014·1 cites·14 claims
- 1555US10234783B2Carrier, developer, image forming apparatus, developer stored unit, and image forming methodSAKATA KOICHI·Filed 2016·Granted Mar 19, 2019·0 cites·12 claims
- 1655US9519234B2Carrier, two-component developer, supplemental developer, image forming method, process cartridge and image forming apparatusKISHIDA HIROYUKI·Filed 2013·Granted Dec 13, 2016·0 cites·13 claims
- 1752US9146487B2Carrier for developing electrostatic latent image, and electrostatic latent image developerSAWADA TOYOSHI·Filed 2013·Granted Sep 29, 2015·0 cites·8 claims
- 1852US5952103AThermal image transfer recording mediumRICOH KK·Filed 1997·Granted Sep 14, 1999·13 cites·2 claims
- 1952US5773153AThermal image transfer recording mediumRICOH KK·Filed 1995·Granted Jun 30, 1998·13 cites·10 claims
- 2051US8778587B2Carrier for electrostatic latent image developer, electrostatic latent image developer formed of carrier and toner, and process cartridge using the developerYAMAGUCHI KIMITOSHI·Filed 2012·Granted Jul 15, 2014·0 cites·9 claims
- 2144US10067438B2Electrostatic latent image developing white developer, image forming method, image forming apparatus, and process cartridgeMURASAWA YOSHIHIRO·Filed 2015·Granted Sep 4, 2018·0 cites·8 claims
- 2240US2014080052A1Carrier for two-component developer, electrostatic latent image developer, and image forming methodYAGUCHI SHIGENORI·Filed 2013·Application pending·0 cites
- 2336US10197948B2Developing device and image forming apparatusIWATSUKI HITOSHI·Filed 2015·Granted Feb 5, 2019·0 cites·11 claims
- 2430US8404321B2Thermal transfer recording mediumTOHMATSU HIROSHI·Filed 2010·Granted Mar 26, 2013·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Hiroshi Tohmatsu files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →