Inventor · disambiguated record
Yoichi Yamakawa
Also filed as: YAMAKAWA YOICHI
30 granted patents·7 pending applications·414 citations·filing 1989–2025
96Inventor score
Files withFUJIFILM BUSINESS INNOVATION CORP16TOYODA MACHINE WORKS LTD9FUJI XEROX CO LTD4HASEGAWA YOUSUKE2YAMAKAWA YOICHI2
Top patents by PatentIndex Score
37 records- 0196US5715729AMachine tool having parallel structureTOYODA MACHINE WORKS LTD·Filed 1995·Granted Feb 10, 1998·264 cites·7 claims
- 0294US11614709B1Accommodating device and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Mar 28, 2023·2 cites·20 claims
- 0389US8434759B2Sheet transport device and image forming apparatusABE TAKASHI·Filed 2011·Granted May 7, 2013·6 cites·8 claims
- 0486US9022384B2Recording-material transport apparatus and recording-material transport methodHASEGAWA YOUSUKE·Filed 2011·Granted May 5, 2015·8 cites·8 claims
- 0577US9946210B2Sheet transport device and image forming apparatusFUJI XEROX CO LTD·Filed 2015·Granted Apr 17, 2018·3 cites·8 claims
- 0671US11772916B2Container member and image forming apparatus with container body containing and tilting recording mediumFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Oct 3, 2023·0 cites·9 claims
- 0770US7922973B2Combined unit of humidity indicator and desiccant packAP TECH CORP·Filed 2007·Granted Apr 12, 2011·4 cites·7 claims
- 0866US11926501B2Accommodating device and image forming apparatus with accommodating unitFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Mar 12, 2024·0 cites·20 claims
- 0966US9242821B2Transport device and image forming apparatusFUJI XEROX CO LTD·Filed 2014·Granted Jan 26, 2016·2 cites·8 claims
- 1063US12319524B2Sheet containing apparatus and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Jun 3, 2025·0 cites·20 claims
- 1161US4992711APositioning controlling deviceTOYODA MACHINE WORKS LTD·Filed 1990·Granted Feb 12, 1991·23 cites·5 claims
- 1260US7316198B2Humidity indicatorYAMAKAWA YOICHI·Filed 2004·Granted Jan 8, 2008·4 cites·10 claims
- 1360US4920572AObject recognition system for a robotTOYODA MACHINE WORKS LTD·Filed 1989·Granted Apr 24, 1990·27 cites·4 claims
- 1459US12346049B2Driving device and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Jul 1, 2025·0 cites·19 claims
- 1559US11940754B2Container member and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Granted Mar 26, 2024·0 cites·12 claims
- 1658US5229951AApparatus for machining a non-circular workpieceTOYODA MACHINE WORKS LTD·Filed 1990·Granted Jul 20, 1993·14 cites·8 claims
- 1757US8814161B2Sheet transporting device and image forming apparatus with regulating member and first transport member moving togetherYAMAKAWA YOICHI·Filed 2011·Granted Aug 26, 2014·1 cites·9 claims
- 1857US2025245626A1System, terminal device, and methodPREFERRED NETWORKS INC·Filed 2025·Application pending·0 cites
- 1956US5054340AApparatus for machining a non-circular workpieceTOYODA MACHINE WORKS LTD·Filed 1990·Granted Oct 8, 1991·18 cites·7 claims
- 2054US12388936B2Document reading device and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Aug 12, 2025·0 cites·20 claims
- 2150US12328420B2Document reading device and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Granted Jun 10, 2025·0 cites·17 claims
- 2249US11247497B2Attachment structure and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2020·Granted Feb 15, 2022·0 cites·20 claims
- 2348US9242824B2Transport mechanism and image forming apparatusFUJI XEROX CO LTD·Filed 2014·Granted Jan 26, 2016·0 cites·21 claims
- 2446US5329458ADevice and method for detecting position of edge of cutting toolTOYODA MACHINE WORKS LTD·Filed 1992·Granted Jul 12, 1994·12 cites·7 claims
- 2545US5212648AMethod and apparatus for machining a non-circular workpieceTOYODA MACHINE WORKS LTD·Filed 1991·Granted May 18, 1993·12 cites·9 claims
- 2645US2023054282A1Container member and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2021·Application pending·0 cites
- 2744US2023055187A1Container apparatus and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Application pending·0 cites
- 2843US8672320B2Recording-material transport apparatus and recording-material transport methodHASEGAWA YOUSUKE·Filed 2011·Granted Mar 18, 2014·0 cites·14 claims
- 2943US2023053700A1Image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Application pending·0 cites
- 3043US2023058066A1Image processing apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Application pending·0 cites
- 3143US2023055462A1Image reading apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2022·Application pending·0 cites
- 3242US11199800B2Image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2019·Granted Dec 14, 2021·0 cites·10 claims
- 3340US5485752AApparatus for detecting contact with rotating bodyTOYODA MACHINE WORKS LTD·Filed 1993·Granted Jan 23, 1996·9 cites·7 claims
- 3439US2021070563A1Attachment structure and image forming apparatusFUJI XEROX CO LTD·Filed 2020·Application pending·0 cites
- 3537US11347173B2Retracting device, accommodating device, and image forming apparatusFUJIFILM BUSINESS INNOVATION CORP·Filed 2018·Granted May 31, 2022·0 cites·11 claims
- 3637US8867089B2Recording material transporting device and image forming apparatusUEHARA MAKIO·Filed 2011·Granted Oct 21, 2014·0 cites·13 claims
- 3735US5274564AMethod and apparatus for machining a non-circular workpieceTOYODA MACHINE WORKS LTD·Filed 1991·Granted Dec 28, 1993·5 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →