Inventor · disambiguated record
Ryuichi Arai
Also filed as: ARAI RYUICHI
58 granted patents·10 pending applications·1,583 citations·filing 1983–2025
99Inventor score
Top patents by PatentIndex Score
68 records- 0198US4832984AImage forming methodCANON KK·Filed 1988·Granted May 23, 1989·136 cites·51 claims
- 0298US4785313ARecording medium and image formation process using the sameCANON KK·Filed 1986·Granted Nov 15, 1988·161 cites·38 claims
- 0397US4877680ARecording medium with non-porous ink-receiving layerCANON KK·Filed 1988·Granted Oct 31, 1989·118 cites·10 claims
- 0495US4642654ARecording methodCANON KK·Filed 1986·Granted Feb 10, 1987·58 cites·8 claims
- 0594US4758461ARecording paper and ink jet recording method by use thereofCANON KK·Filed 1987·Granted Jul 19, 1988·66 cites·12 claims
- 0694US4636805ARecord-bearing member and ink-jet recording method by use thereofCANON KK·Filed 1985·Granted Jan 13, 1987·65 cites·17 claims
- 0793US4686118ARecording medium and recording method by use thereofCANON KK·Filed 1986·Granted Aug 11, 1987·71 cites·16 claims
- 0893US4642247ARecording mediumCANON KK·Filed 1985·Granted Feb 10, 1987·82 cites·24 claims
- 0992US4721968AInk jet transparency-mode recorderCANON KK·Filed 1984·Granted Jan 26, 1988·53 cites·2 claims
- 1092US4542059ARecording mediumCANON KK·Filed 1983·Granted Sep 17, 1985·66 cites·34 claims
- 1191US8944573B2Inkjet head and method of manufacturing the sameTOSHIBA TEC KK·Filed 2013·Granted Feb 3, 2015·5 cites·8 claims
- 1291US4868581AInk-receiving composite polymer materialCANON KK·Filed 1986·Granted Sep 19, 1989·51 cites·8 claims
- 1391US4595931ARecording methodCANON KK·Filed 1984·Granted Jun 17, 1986·41 cites·9 claims
- 1490US4701837ALight-transmissive recording medium having a crosslinked-polymer ink receiving layerCANON KK·Filed 1986·Granted Oct 20, 1987·42 cites·33 claims
- 1589US5101218ARecording medium with non-porous ink-receiving layer and method of use thereofCANON KK·Filed 1989·Granted Mar 31, 1992·49 cites·28 claims
- 1689US5041328ARecording medium and ink jet recording method by use thereofCANON KK·Filed 1987·Granted Aug 20, 1991·65 cites·40 claims
- 1787US4956223ARecording medium and recording method utilizing the sameCANON KK·Filed 1987·Granted Sep 11, 1990·34 cites·7 claims
- 1886US8801147B2Inkjet head and inkjet recording apparatusKUSUNOKI RYUTARO·Filed 2012·Granted Aug 12, 2014·4 cites·6 claims
- 1986US4965174ARecording medium and process for forming color image with use of the sameCANON KK·Filed 1989·Granted Oct 23, 1990·17 cites·24 claims
- 2085US4733247AInk jet recording method in which the projected ink droplets have a Weber number of no more than 500CANON KK·Filed 1986·Granted Mar 22, 1988·31 cites·8 claims
- 2185US4636409ARecording mediumCANON KK·Filed 1984·Granted Jan 13, 1987·36 cites·17 claims
- 2285US4550053ARecording mediumCANON KK·Filed 1984·Granted Oct 29, 1985·24 cites·7 claims
- 2384US12148545B2Conductive wire for electrical properties testing and method for producing the sameSWCC CORP·Filed 2023·Granted Nov 19, 2024·2 cites·6 claims
- 2484US9102154B2Ink jet head and ink jet printing apparatus having the sameTOSHIBA TEC KK·Filed 2014·Granted Aug 11, 2015·3 cites·15 claims
- 2584US8967775B2Ink jet head and image forming apparatusTOSHIBA TEC KK·Filed 2013·Granted Mar 3, 2015·3 cites·20 claims
- 2683US9707756B2Inkjet head and inkjet recording apparatusTOSHIBA TEC KK·Filed 2016·Granted Jul 18, 2017·2 cites·15 claims
- 2783US9227403B2Ink jet head and ink jet printing apparatus having the sameTOSHIBA TEC KK·Filed 2014·Granted Jan 5, 2016·3 cites·6 claims
- 2883US8876262B2Inkjet head and inkjet recording apparatusARAI RYUICHI·Filed 2012·Granted Nov 4, 2014·5 cites·16 claims
- 2982US4664952ARecording medium and recording method utilizing the sameCANON KK·Filed 1985·Granted May 12, 1987·37 cites·6 claims
- 3081US10502314B2Vehicle oil pump driving control deviceJATCO LTD·Filed 2016·Granted Dec 10, 2019·3 cites·9 claims
- 3180US9415597B2Ink jet head having nozzle plate equipped with piezoelectric elementsTOSHIBA KK·Filed 2014·Granted Aug 16, 2016·2 cites·16 claims
- 3280US4906894APhotoelectron beam converting device and method of driving the sameCANON KK·Filed 1989·Granted Mar 6, 1990·25 cites·2 claims
- 3377US5334999ADevice for preparing ink jet recording head with channels containing energy generating elementsCANON KK·Filed 1991·Granted Aug 2, 1994·35 cites·15 claims
- 3477US5270990ATracking error signal detecting apparatus using an electron beam and apparatus for effecting recording/reproduction of information by the utilization of a plurality of electron beamsCANON KK·Filed 1992·Granted Dec 14, 1993·26 cites·38 claims
- 3577US4783376ALight-transmissive recording medium and image formation method using the sameCANON KK·Filed 1986·Granted Nov 8, 1988·19 cites·30 claims
- 3676US10377368B2Control device for hybrid vehicleJATCO LTD·Filed 2016·Granted Aug 13, 2019·4 cites·8 claims
- 3775US9914299B2Inkjet head and inkjet recording apparatusTOSHIBA TEC KK·Filed 2016·Granted Mar 13, 2018·1 cites·15 claims
- 3875US4801497ARecording mediumCANON KK·Filed 1986·Granted Jan 31, 1989·29 cites·30 claims
- 3972US9073319B2Inkjet head and inkjet recording apparatus with integrated nozzles and actuatorsTOSHIBA TEC KK·Filed 2014·Granted Jul 7, 2015·1 cites·8 claims
- 4072US5758417AMethod of manufacturing an ink jet head having a coated surfaceCANON KK·Filed 1995·Granted Jun 2, 1998·29 cites·14 claims
- 4171US12305269B2Method of manufacturing sheet material made of copper-silver alloy and method of manufaturing sheet for electrode of probe cardSWCC CORP·Filed 2024·Granted May 20, 2025·0 cites·8 claims
- 4271US2025174858A1Liquid injection jig and liquid injection systemTOSHIBA KK·Filed 2025·Application pending·0 cites
- 4369US9079400B2Ink jet headTOSHIBA TEC KK·Filed 2013·Granted Jul 14, 2015·1 cites·9 claims
- 4468US4636410ARecording methodCANON KK·Filed 1985·Granted Jan 13, 1987·24 cites·13 claims
- 4563US10500856B2Ink jet head and ink jet recording apparatusTOSHIBA TEC KK·Filed 2018·Granted Dec 10, 2019·0 cites·20 claims
- 4662US5984466AInk jet recording method for producing printed images having water-fastnessCANON KK·Filed 1996·Granted Nov 16, 1999·14 cites·18 claims
- 4761US5436650AInk jet recording head, process for producing the head and ink jet recording apparatusCANON KK·Filed 1992·Granted Jul 25, 1995·16 cites·6 claims
- 4859US9937718B2Ink jet head and ink jet recording apparatusTOSHIBA TEC KK·Filed 2017·Granted Apr 10, 2018·0 cites·20 claims
- 4958US9415593B2Ink jet head and manufacturing method of the sameTOSHIBA TEC KK·Filed 2015·Granted Aug 16, 2016·0 cites·12 claims
- 5058US9150008B2Ink jet head and manufacturing method of the sameTOSHIBA TEC KK·Filed 2013·Granted Oct 6, 2015·0 cites·10 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Ryuichi Arai 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 →