Inventor · disambiguated record
Kazuhiko Hirokawa
Also filed as: HIROKAWA KAZUHIKO
15 granted patents·2 pending applications·30 citations·filing 2007–2017
88Inventor score
Top patents by PatentIndex Score
17 records- 0191US9550902B1Aqueous ink, ink cartridge, ink drying system, ink drying method, recording apparatus, and recording methodFUJI XEROX CO LTD·Filed 2016·Granted Jan 24, 2017·4 cites·17 claims
- 0290US7910733B2Image-forming materialFUJI XEROX CO LTD·Filed 2008·Granted Mar 22, 2011·11 cites·6 claims
- 0377US7985291B2Perimidine-substituted squarylium dye, dispersion medium, detection medium and image forming materialFUJI XEROX CO LTD·Filed 2009·Granted Jul 26, 2011·2 cites·6 claims
- 0475US7679807B2Display medium, display device and display methodFUJI XEROX CO LTD·Filed 2008·Granted Mar 16, 2010·4 cites·10 claims
- 0573US8120819B2Image processing device and image forming device for generating corrected image data for a source image according to absorption wavelength characteristics of invisible coloring materialHIROKAWA KAZUHIKO·Filed 2009·Granted Feb 21, 2012·4 cites·11 claims
- 0673US7667047B2ColorantFUJI XEROX CO LTD·Filed 2008·Granted Feb 23, 2010·2 cites·3 claims
- 0766US10494535B2Near-infrared absorbent dispersion, aqueous ink for ink jet recording, and aqueous ink set for ink jet recordingFUJI XEROX CO LTD·Filed 2017·Granted Dec 3, 2019·0 cites·19 claims
- 0866US8676098B2Developing device and image forming apparatusHIROKAWA KAZUHIKO·Filed 2011·Granted Mar 18, 2014·1 cites·10 claims
- 0959US8017291B2Image-forming materialFUJI XEROX CO LTD·Filed 2009·Granted Sep 13, 2011·2 cites·9 claims
- 1054US7951960B2Black color material and tonerFUJI XEROX CO LTD·Filed 2008·Granted May 31, 2011·0 cites·7 claims
- 1153US9782976B2Liquid supply device and droplet ejecting apparatusFUJI XEROX CO LTD·Filed 2016·Granted Oct 10, 2017·0 cites·17 claims
- 1252US8343701B2Image forming materialFUJI XEROX CO LTD·Filed 2009·Granted Jan 1, 2013·0 cites·6 claims
- 1348US8007975B2Colorant and tonerFUJI XEROX CO LTD·Filed 2007·Granted Aug 30, 2011·0 cites·4 claims
- 1446US8268523B2Black color material and tonerHASEGAWA SHINJI·Filed 2008·Granted Sep 18, 2012·0 cites·4 claims
- 1543US10407585B2Aqueous ink for ink jet recording, aqueous ink set for ink jet recording, and ink jet recording methodFUJI XEROX CO LTD·Filed 2017·Granted Sep 10, 2019·0 cites·16 claims
- 1640US2009075196A1Toner, electrostatic latent image developer, magnetic latent image developer, toner cartridge, process cartridge, and image forming apparatusFUJI XEROX CO LTD·Filed 2008·Application pending·0 cites
- 1734US2017266985A1Droplet ejection deviceFUJI XEROX CO LTD·Filed 2016·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →