Inventor · disambiguated record
Ryo Igarashi
Also filed as: IGARASHI RYO
65 granted patents·21 pending applications·1,474 citations·filing 1975–2024
99Inventor score
Files withOKAMURA CORP32NIPPON TELEGRAPH & TELEPHONE21TOYOTA MOTOR CO LTD20WOVEN PLANET HOLDINGS INC3IBM2
Top patents by PatentIndex Score
86 records- 0198USD558995SChairOKAMURA CORP·Filed 2007·Granted Jan 8, 2008·114 cites·1 claims
- 0297USD559572SChairOKAMURA CORP·Filed 2007·Granted Jan 15, 2008·89 cites·1 claims
- 0397US6942300B2Structure for mounting a net member to a frame for a seat or backrest of a chairOKAMURA CORP·Filed 2003·Granted Sep 13, 2005·192 cites·26 claims
- 0496US9578968B2ChairOKAMURA CORP·Filed 2013·Granted Feb 28, 2017·37 cites·17 claims
- 0595US7837272B2Chair and the structure for stretching a mesh over an element of the chairOKAMURA CORP·Filed 2005·Granted Nov 23, 2010·120 cites·14 claims
- 0695US7097249B2Tilting mechanism for a chair and chair having the sameOKAMURA CORP·Filed 2003·Granted Aug 29, 2006·78 cites·12 claims
- 0793US11680822B2Apparatus and methods for managing mapsTOYOTA MOTOR CO LTD·Filed 2021·Granted Jun 20, 2023·2 cites·6 claims
- 0893US8172332B2Chair backrest deviceMASUNAGA HIROSHI·Filed 2007·Granted May 8, 2012·75 cites·6 claims
- 0993USD567522SChairOKAMURA CORP·Filed 2007·Granted Apr 29, 2008·53 cites·1 claims
- 1092USD550977SChairOKAMURA CORP·Filed 2006·Granted Sep 18, 2007·50 cites·1 claims
- 1192US7243993B2Tilting mechanism for a chair and a chair having the sameOKAMURA CORP·Filed 2006·Granted Jul 17, 2007·42 cites·3 claims
- 1291US11933629B2Map data updating device and storage medium storing computer program for map data updatingTOYOTA MOTOR CO LTD·Filed 2021·Granted Mar 19, 2024·2 cites·5 claims
- 1391USD559573SChairOKAMURA CORP·Filed 2007·Granted Jan 15, 2008·46 cites·1 claims
- 1490US11486727B2Map generation device, map generation method, and map generation computer programTOYOTA MOTOR CO LTD·Filed 2020·Granted Nov 1, 2022·2 cites·5 claims
- 1590USD567521SChairOKAMURA CORP·Filed 2007·Granted Apr 29, 2008·41 cites·1 claims
- 1690USD558996SChairOKAMURA CORP·Filed 2007·Granted Jan 8, 2008·41 cites·1 claims
- 1790USD555924SChairOKAMURA CORP·Filed 2006·Granted Nov 27, 2007·44 cites·1 claims
- 1890USD550471SChairOKAMURA CORP·Filed 2006·Granted Sep 11, 2007·43 cites·1 claims
- 1989US7246859B2ChairOKAMURA CORP·Filed 2006·Granted Jul 24, 2007·31 cites·1 claims
- 2088USD558997SChairOKAMURA CORP·Filed 2007·Granted Jan 8, 2008·36 cites·1 claims
- 2187USD587915SChairOKAMURA CORP·Filed 2006·Granted Mar 10, 2009·36 cites·1 claims
- 2287USD512579SChairOKAMURA CORP·Filed 2004·Granted Dec 13, 2005·33 cites·1 claims
- 2385USD512578SChairOKAMURA CORP·Filed 2004·Granted Dec 13, 2005·30 cites·1 claims
- 2483USD514345SChairOKAMURA CORP·Filed 2004·Granted Feb 7, 2006·28 cites·1 claims
- 2581US8191970B2Backrest device in a chairIGARASHI RYO·Filed 2006·Granted Jun 5, 2012·31 cites·8 claims
- 2681USD559574SChairOKAMURA CORP·Filed 2007·Granted Jan 15, 2008·26 cites·1 claims
- 2781USD514838SChairOKAMURA CORP·Filed 2004·Granted Feb 14, 2006·24 cites·1 claims
- 2880US11019928B2Armrest and chairOKAMURA CORP·Filed 2017·Granted Jun 1, 2021·5 cites·4 claims
- 2978US10932575B2Armrest and chairOKAMURA CORP·Filed 2017·Granted Mar 2, 2021·4 cites·8 claims
- 3078USD575542SChairOKAMURA CORP·Filed 2006·Granted Aug 26, 2008·23 cites·1 claims
- 3175US11104476B2Package having a sheet-covered cutoutAMAZON TECH INC·Filed 2018·Granted Aug 31, 2021·3 cites·22 claims
- 3274US11652554B2Optical receiving apparatus, optical transmission system, optical transmission method and computer programNIPPON TELEGRAPH & TELEPHONE·Filed 2019·Granted May 16, 2023·2 cites·7 claims
- 3372US12511939B2Photograph acquisition and object identification method and apparatusTOYOTA MOTOR CO LTD·Filed 2024·Granted Dec 30, 2025·0 cites·20 claims
- 3470US9022482B2Stretching structure of a tension member for a chairMORIO SAYAKA·Filed 2012·Granted May 5, 2015·10 cites·6 claims
- 3570USD568057SChairOKAMURA CORP·Filed 2007·Granted May 6, 2008·16 cites·1 claims
- 3670US2023014725A1Map generation device, map generation method, and map generation ocmputer programTOYOTA MOTOR CO LTD·Filed 2022·Application pending·0 cites
- 3767US12437015B1Object identification and search range adjustment method and apparatusTOYOTA MOTOR CO LTD·Filed 2024·Granted Oct 7, 2025·0 cites·20 claims
- 3867US2025389546A1Object identification and search range adjustment method and apparatusTOYOTA MOTOR CO LTD·Filed 2024·Application pending·0 cites
- 3966US10159350B2ChairOKAMURA CORP·Filed 2014·Granted Dec 25, 2018·4 cites·12 claims
- 4065US11680808B2Map selection device, storage medium storing computer program for map selection and map selection methodTOYOTA MOTOR CO LTD·Filed 2021·Granted Jun 20, 2023·0 cites·4 claims
- 4165USD903354SChairOKAMURA CORP·Filed 2019·Granted Dec 1, 2020·8 cites·1 claims
- 4264US12047710B2Remote monitoring device, remote monitoring system, and remote monitoring methodTOYOTA MOTOR CO LTD·Filed 2022·Granted Jul 23, 2024·0 cites·8 claims
- 4364US2022298485A1Proliferative liver organoid, metabolically activated liver organoid, and use thereofJSR CORP·Filed 2022·Application pending·0 cites
- 4460USD587027SChairOKAMURA CORP·Filed 2006·Granted Feb 24, 2009·11 cites·1 claims
- 4558US11828602B2Location estimating device, storage medium storing computer program for location estimation and location estimating methodTOYOTA MOTOR CO LTD·Filed 2021·Granted Nov 28, 2023·0 cites·8 claims
- 4658US2025341751A1Method of controlling transmission rate of glass in vehicle, system for implementing the same, and vehicleTOYOTA MOTOR CO LTD·Filed 2024·Application pending·0 cites
- 4756US11516442B2Data transmission device and data transmission methodTOYOTA MOTOR CO LTD·Filed 2021·Granted Nov 29, 2022·0 cites·7 claims
- 4855US4001612ALinear resistance element for lsi circuitryIBM·Filed 1975·Granted Jan 4, 1977·10 cites·2 claims
- 4954US11863211B2Optical communication system and optical communication methodNIPPON TELEGRAPH & TELEPHONE·Filed 2020·Granted Jan 2, 2024·0 cites·7 claims
- 5054US2011204694A1Chair backrestOKAMURA CORP·Filed 2009·Application pending·0 cites
Showing the top 50 of 86 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →