Inventor · disambiguated record
Goichi Akanuma
Also filed as: AKANUMA GOICHI
23 granted patents·2 pending applications·145 citations·filing 1998–2025
94Inventor score
Top patents by PatentIndex Score
25 records- 0188US7287264B2Objective lens drive apparatus with objective lens portion movable along support member axial directionRICOH KK·Filed 2003·Granted Oct 23, 2007·24 cites·15 claims
- 0285US9291817B2Optical deflection device, apparatus including the same, and method of controlling optical deflecting deviceHASHIGUCHI TSUYOSHI·Filed 2014·Granted Mar 22, 2016·9 cites·19 claims
- 0384US8830551B2Actuator, protective cover for actuator, actuator manufacturing method, and optical deflector incorporating actuator, and two dimensional optical scanner and image projector incorporating optical scannerKITAZAWA TOMOFUMI·Filed 2011·Granted Sep 9, 2014·9 cites·17 claims
- 0483US11785390B2Acoustic transducerYOKOTA WATARU·Filed 2022·Granted Oct 10, 2023·2 cites·11 claims
- 0581US6343053B1Objective lens driving apparatus for driving an objective lens of an optical disk driveRICOH KK·Filed 1999·Granted Jan 29, 2002·36 cites·15 claims
- 0674US8174750B2Optical deflector, optical scanner, image forming apparatus, and image projectorAKANUMA GOICHI·Filed 2010·Granted May 8, 2012·4 cites·14 claims
- 0774US8147069B2Lighting device and projection image display unitSEO MANABU·Filed 2009·Granted Apr 3, 2012·7 cites·16 claims
- 0873US9448402B2Optical deflection device and image forming apparatusAKANUMA GOICHI·Filed 2014·Granted Sep 20, 2016·3 cites·17 claims
- 0972US6177667B1Imaging deviceRICOH KK·Filed 1998·Granted Jan 23, 2001·40 cites·16 claims
- 1071US7489600B2Object lens driving device with reduced tilt during focusing and tracking operations and optical pickup and optical disk drive utilizing the sameRICOH KK·Filed 2005·Granted Feb 10, 2009·2 cites·11 claims
- 1169US8395834B2Deflecting mirror for deflecting and scanning light beamAKANUMA GOICHI·Filed 2010·Granted Mar 12, 2013·3 cites·7 claims
- 1266US2025271660A1Movable device, image projection apparatus, head-up display, laser headlamp, head-mounted display, object recognition apparatus, and moving bodyAKANUMA GOICHI·Filed 2025·Application pending·0 cites
- 1362US12379587B2Light deflector, image projection apparatus, laser headlamp, head-mounted display, distance measurement apparatus, and mobile objectAKANUMA GOICHI·Filed 2022·Granted Aug 5, 2025·0 cites·15 claims
- 1462US9766450B2Light deflector, two-dimensional image display apparatus, optical scanner, and image forming apparatusNAKAGAWA JUN·Filed 2015·Granted Sep 19, 2017·1 cites·13 claims
- 1561US7701584B2Light path circuit apparatus and ring laser gyroRICOH KK·Filed 2008·Granted Apr 20, 2010·4 cites·13 claims
- 1660US11789258B2Light deflector, deflecting device, object recognition device, image projection device, and mobile objectRICOH CO LTD·Filed 2020·Granted Oct 17, 2023·0 cites·20 claims
- 1759US9575312B2Light deflector, and devices incorporating the sameAKANUMA GOICHI·Filed 2015·Granted Feb 21, 2017·1 cites·20 claims
- 1856US2007195658A1Objective lens drive apparatus, optical pickup device, and optical disk driveAKANUMA GOICHI·Filed 2007·Application pending·0 cites
- 1954US11796793B2Optical deflector, deflection apparatus, distance measuring apparatus, image projecting apparatus, and movable bodyYODA MITSUHIRO·Filed 2020·Granted Oct 24, 2023·0 cites·11 claims
- 2052US12140698B2Light deflector, deflecting device, distance measurement device, image projection device, and vehicleRICOH CO LTD·Filed 2020·Granted Nov 12, 2024·0 cites·12 claims
- 2149US10901220B2Movable device, image projection apparatus, heads-up display, laser headlamp, head-mounted display, object recognition device, and vehicleSHINKAWA MIZUKI·Filed 2019·Granted Jan 26, 2021·0 cites·22 claims
- 2247US11750779B2Light deflector, optical scanning system, image projection device, image forming apparatus, and lidar deviceRICOH CO LTD·Filed 2020·Granted Sep 5, 2023·0 cites·19 claims
- 2347US11106031B2Light deflector, optical scanning device, image projection device, and mobile objectRICOH CO LTD·Filed 2017·Granted Aug 31, 2021·0 cites·11 claims
- 2446US8255936B2Objective lens drive apparatus where interaction of drive magnets and drive coils drive a holding member that holds the objective lens and optical pickup and optical disk apparatus including the sameAKANUMA GOICHI·Filed 2007·Granted Aug 28, 2012·0 cites·11 claims
- 2545US11644664B2Light deflector, optical scanning system, image projection device, image forming apparatus, and lidar deviceRICOH CO LTD·Filed 2020·Granted May 9, 2023·0 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →