Inventor · disambiguated record
Hiroyuki Tokimatsu
Also filed as: TOKIMATSU HIROYUKI
35 granted patents·8 pending applications·429 citations·filing 1992–2025
97Inventor score
Top patents by PatentIndex Score
43 records- 0192US10786998B2Inkjet recording device having controller for bubble discharging operationKONICA MINOLTA INC·Filed 2017·Granted Sep 29, 2020·4 cites·6 claims
- 0291US9931860B2Inkjet printing apparatusKONICA MINOLTA INC·Filed 2015·Granted Apr 3, 2018·5 cites·9 claims
- 0391US8369752B2Image forming apparatusKONICA MINOLTA BUSINESS TECH·Filed 2010·Granted Feb 5, 2013·7 cites·7 claims
- 0490US6345169B1Fixing apparatus with heat ray generating deviceKONISHIROKU PHOTO IND·Filed 2000·Granted Feb 5, 2002·37 cites·24 claims
- 0588US5754210AOptical system assembling device for an image forming apparatusKONISHIROKU PHOTO IND·Filed 1996·Granted May 19, 1998·44 cites·17 claims
- 0682US6057866AColor image forming apparatus and method using color compensationKONISHIROKU PHOTO IND·Filed 1997·Granted May 2, 2000·33 cites·19 claims
- 0781US5752133AElectrophotographic color image forming apparatus with image exposure means inside of photoreceptor drumKONISHIROKU PHOTO IND·Filed 1996·Granted May 12, 1998·31 cites·41 claims
- 0880US5666605ACharging unitKONISHIROKU PHOTO IND·Filed 1995·Granted Sep 9, 1997·29 cites·18 claims
- 0979US6393230B1Fixing device and image forming apparatus therewithKONISHIROKU PHOTO IND·Filed 2001·Granted May 21, 2002·18 cites·4 claims
- 1079US2025381782A1Droplet ejection apparatus, droplet ejection apparatus contamination suppressing method, and storage mediumKONICA MINOLTA INC·Filed 2025·Application pending·0 cites
- 1173US5758243AColor image forming apparatusKONISHIROKU PHOTO IND·Filed 1997·Granted May 26, 1998·23 cites·4 claims
- 1268US12358300B2Image forming apparatusKONICA MINOLTA INC·Filed 2023·Granted Jul 15, 2025·0 cites·7 claims
- 1367US6282399B1Fixing apparatusKONISHIROKU PHOTO IND·Filed 2000·Granted Aug 28, 2001·10 cites·12 claims
- 1467US5886728AImage forming apparatus having a plurality of exposure devices which are radially arranged on a common supporting member with respect to a rotation axis of an image forming bodyKONISHIROKU PHOTO IND·Filed 1996·Granted Mar 23, 1999·24 cites·16 claims
- 1567US5722009AColor image forming apparatus having a transparent image forming drum with detectors inside of the drumKONISHIROKU PHOTO IND·Filed 1996·Granted Feb 24, 1998·18 cites·24 claims
- 1662US5729809AColor image forming apparatus with intermediate transferKONISHIROKU PHOTO IND·Filed 1996·Granted Mar 17, 1998·15 cites·21 claims
- 1761US6308039B1Apparatus for fixing toner images on a transfer materialKONISHIROKU PHOTO IND·Filed 2000·Granted Oct 23, 2001·8 cites·24 claims
- 1861US2025128512A1Inkjet recording apparatus and ink heating unitKONICA MINOLTA INC·Filed 2024·Application pending·0 cites
- 1961US2025187330A1Inkjet recording apparatus and abnormality detection method for ink channelKONICA MINOLTA INC·Filed 2024·Application pending·0 cites
- 2060US5840461AProcess for producing cylindrical substrate for image formationKONISHIROKU PHOTO IND·Filed 1997·Granted Nov 24, 1998·14 cites·22 claims
- 2160US5784666AColor image forming apparatusKONISHIROKU PHOTO IND·Filed 1995·Granted Jul 21, 1998·14 cites·21 claims
- 2259US6134403AColor image forming apparatus having developing devices located within a central angle of 180°KONISHIROKU PHOTO IND·Filed 1997·Granted Oct 17, 2000·14 cites·13 claims
- 2359US5615002AElectrophotographic color image forming apparatus with a plurality of image exposing devices arranged around outer circumference of photoreceptorKONISHIROKU PHOTO IND·Filed 1995·Granted Mar 25, 1997·13 cites·43 claims
- 2456US5722013AColor image forming apparatus having a supporting member and a plurality of image exposure devices mounted inside a cylindrical image forming bodyKONISHIROKU PHOTO IND·Filed 1996·Granted Feb 24, 1998·12 cites·20 claims
- 2552US8031358B2Image forming system including a plurality of image forming apparatusesKONICA MINOLTA BUSINESS TECH·Filed 2010·Granted Oct 4, 2011·0 cites·13 claims
- 2652US6157805AFixing apparatusKONISHIROKU PHOTO IND·Filed 1999·Granted Dec 5, 2000·10 cites·28 claims
- 2752US5930002AImage forming apparatus having a single-body image forming drum unitKONISHIROKU PHOTO IND·Filed 1997·Granted Jul 27, 1999·10 cites·10 claims
- 2850US2004257609A1Image forming systemKONICA MINOLTA BUSINESS TECH·Filed 2004·Application pending·0 cites
- 2949US6892045B2Image forming apparatus and convey control method for recycle tonerKONISHIROKU PHOTO IND·Filed 2003·Granted May 10, 2005·5 cites·12 claims
- 3049US2021062936A1Valve device, image forming apparatus, and method for determining deterioration degree of valveKONICA MINOLTA INC·Filed 2020·Application pending·0 cites
- 3148US2022105730A1Cleaning device, image forming apparatus, winding control method, and programKONICA MINOLTA INC·Filed 2021·Application pending·0 cites
- 3245US6041204AColor image forming apparatus with an organic photoconductorKONISHIROKU PHOTO IND·Filed 1998·Granted Mar 21, 2000·7 cites·9 claims
- 3344US2018370238A1Maintenance method, image formation method, maintenance device, and image formation deviceKONICA MINOLTA INC·Filed 2016·Application pending·0 cites
- 3443US7817941B2Color image forming apparatus having developing devices with different storage capacitiesKONICA MINOLTA BUSINESS TECH·Filed 2007·Granted Oct 19, 2010·0 cites·16 claims
- 3542US9498957B2Inkjet recording apparatus and recording head maintenance methodKONICA MINOLTA INC·Filed 2014·Granted Nov 22, 2016·0 cites·11 claims
- 3642US2020282722A1Inkjet recording device and maintenance methodKONICA MINOLTA INC·Filed 2020·Application pending·0 cites
- 3741US10464346B2Ink jet recording apparatusKONICA MINOLTA INC·Filed 2016·Granted Nov 5, 2019·0 cites·12 claims
- 3841US5325637ADeveloping apparatus with an improved sleeveKONISHIROKU PHOTO IND·Filed 1992·Granted Jul 5, 1994·9 cites·5 claims
- 3938US5708930AColor image forming apparatus having a transparent image forming bodyKONISHIROKU PHOTO IND·Filed 1996·Granted Jan 13, 1998·4 cites·12 claims
- 4037US5697025AColor image forming apparatusKONISHIROKU PHOTO IND·Filed 1996·Granted Dec 9, 1997·4 cites·5 claims
- 4135US5850247AImage forming apparatusKONISHIROKU PHOTO IND·Filed 1997·Granted Dec 15, 1998·3 cites·11 claims
- 4235US5708934AColor image forming apparatus with well-registrated imagewise exposure meansKONISHIROKU PHOTO IND·Filed 1995·Granted Jan 13, 1998·3 cites·19 claims
- 4331US5784672AColor image forming apparatus having integrally formed/removable image forming body and exposive deviceKONISHIROKU PHOTO IND·Filed 1997·Granted Jul 21, 1998·1 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when Hiroyuki Tokimatsu 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 →