Inventor · disambiguated record
Toshinori Sugiyama
Also filed as: SUGIYAMA TOSHINORI
95 granted patents·34 pending applications·642 citations·filing 1986–2025
99Inventor score
Files withMAXELL LTD88HITACHI MAXELL27HITACHI HIGH TECH CORP5MITSUBISHI KAGAKU MEDIA CO LTD2NAKAMURA SHIGEO2
Top patents by PatentIndex Score
129 records- 0198US11846776B2Head-up display apparatusMAXELL LTD·Filed 2022·Granted Dec 19, 2023·7 cites·55 claims
- 0296US11586040B2In-vehicle information display system and information display apparatusMAXELL LTD·Filed 2019·Granted Feb 21, 2023·9 cites·15 claims
- 0396US10118537B2Image projection apparatusMAXELL LTD·Filed 2016·Granted Nov 6, 2018·18 cites·5 claims
- 0496US9304145B2Inspection method and its apparatus for thermal assist type magnetic head elementHITACHI HIGH TECH FINE SYSTEMS CORP·Filed 2015·Granted Apr 5, 2016·68 cites·16 claims
- 0595US12038580B2In-vehicle information display system and information display apparatusMAXELL LTD·Filed 2022·Granted Jul 16, 2024·2 cites·20 claims
- 0695US11828938B2Information display apparatusMAXELL LTD·Filed 2021·Granted Nov 28, 2023·2 cites·13 claims
- 0794US10647248B2Image projection apparatusMAXELL LTD·Filed 2019·Granted May 12, 2020·6 cites·19 claims
- 0894US10457199B2Image projection apparatusMAXELL LTD·Filed 2016·Granted Oct 29, 2019·14 cites·19 claims
- 0993US11780365B2Optical device and direction display deviceMAXELL LTD·Filed 2020·Granted Oct 10, 2023·3 cites·15 claims
- 1093US11691560B2Image projection apparatusMAXELL LTD·Filed 2022·Granted Jul 4, 2023·1 cites·5 claims
- 1192US11247605B2Image projection apparatus configured to project an image on a road surfaceMAXELL LTD·Filed 2020·Granted Feb 15, 2022·3 cites·12 claims
- 1292US10890763B2Information display apparatusMAXELL LTD·Filed 2017·Granted Jan 12, 2021·8 cites·6 claims
- 1392US10611296B2Image projection apparatusMAXELL LTD·Filed 2019·Granted Apr 7, 2020·4 cites·10 claims
- 1492US6101153AMagnetic head capable of generating multi-stepped external magnetic fields for magneto-optical recording deviceHITACHI MAXELL·Filed 1998·Granted Aug 8, 2000·62 cites·7 claims
- 1591US11487115B2Head-up display apparatusMAXELL LTD·Filed 2017·Granted Nov 1, 2022·6 cites·17 claims
- 1691US10894508B2Optical device and direction display deviceMAXELL LTD·Filed 2020·Granted Jan 19, 2021·3 cites·17 claims
- 1791US10829036B2Road sign projector and vehicle lampMAXELL LTD·Filed 2019·Granted Nov 10, 2020·6 cites·13 claims
- 1890US10670864B2Information display deviceMAXELL LTD·Filed 2015·Granted Jun 2, 2020·7 cites·20 claims
- 1990US7622915B2Magnetic head test method and magnetic head testerHITACHI HIGH TECH CORP·Filed 2008·Granted Nov 24, 2009·16 cites·21 claims
- 2089US11921287B2Information display apparatusMAXELL LTD·Filed 2018·Granted Mar 5, 2024·4 cites·4 claims
- 2189US6160769AOptical recording medium and optical recording deviceHITACHI MAXELL·Filed 1998·Granted Dec 12, 2000·51 cites·10 claims
- 2288US11752870B2VehicleMAXELL LTD·Filed 2022·Granted Sep 12, 2023·1 cites·6 claims
- 2387US10942353B2Information display deviceMAXELL LTD·Filed 2020·Granted Mar 9, 2021·2 cites·8 claims
- 2487US10434933B2Image projection apparatusMAXELL LTD·Filed 2018·Granted Oct 8, 2019·3 cites·10 claims
- 2587US6434088B1Recording and reproducing apparatus having a magneto-optical head with an objective lens and laser-beam-permeable memberHITACHI MAXELL·Filed 2000·Granted Aug 13, 2002·19 cites·19 claims
- 2687US2024383396A1Image projection apparatusMAXELL LTD·Filed 2024·Application pending·0 cites
- 2787US2025296501A1Optical device and direction display deviceMAXELL LTD·Filed 2025·Application pending·0 cites
- 2886US10661706B2Optical device and direction display deviceMAXELL LTD·Filed 2019·Granted May 26, 2020·2 cites·15 claims
- 2986US2025271670A1VehicleMAXELL LTD·Filed 2025·Application pending·0 cites
- 3085US11414009B2Image projection apparatusMAXELL LTD·Filed 2021·Granted Aug 16, 2022·1 cites·10 claims
- 3185US6781926B2Magneto-optical head having heat sink layerHITACHI MAXELL·Filed 2001·Granted Aug 24, 2004·17 cites·30 claims
- 3285US4710913AOptical recording discHITACHI MAXELL·Filed 1986·Granted Dec 1, 1987·36 cites·10 claims
- 3385US2025123487A1Head-up display apparatusMAXELL LTD·Filed 2024·Application pending·0 cites
- 3485US2025102798A1Information display apparatusMAXELL LTD·Filed 2024·Application pending·0 cites
- 3584US12287480B2Information display apparatusMAXELL LTD·Filed 2024·Granted Apr 29, 2025·0 cites·8 claims
- 3684US12216278B2Light source device and electronic deviceMAXELL LTD·Filed 2024·Granted Feb 4, 2025·0 cites·14 claims
- 3784US12071065B2Image projection apparatusMAXELL LTD·Filed 2023·Granted Aug 27, 2024·0 cites·10 claims
- 3884US11378244B2Headlight apparatusMAXELL LTD·Filed 2019·Granted Jul 5, 2022·3 cites·15 claims
- 3984US10859754B2LED light source device and electronic device using the sameMAXELL LTD·Filed 2017·Granted Dec 8, 2020·3 cites·11 claims
- 4084US2025123485A1Light source device and electronic deviceMAXELL LTD·Filed 2024·Application pending·0 cites
- 4183US12493183B2In-vehicle information display system and information display apparatusMAXELL LTD·Filed 2024·Granted Dec 9, 2025·0 cites·20 claims
- 4283US10933800B2Image projection apparatusMAXELL LTD·Filed 2020·Granted Mar 2, 2021·1 cites·10 claims
- 4383US2025264750A1Display deviceMAXELL LTD·Filed 2025·Application pending·0 cites
- 4483US2025303857A1Light source apparatus, and information display system and head-up display apparatus using the sameMAXELL LTD·Filed 2025·Application pending·0 cites
- 4583US2024345393A1Head-up display apparatus and image display apparatus thereofMAXELL LTD·Filed 2024·Application pending·0 cites
- 4682US12332435B2VehicleMAXELL LTD·Filed 2024·Granted Jun 17, 2025·0 cites·7 claims
- 4782US12204104B2VehicleMAXELL LTD·Filed 2023·Granted Jan 21, 2025·0 cites·55 claims
- 4882US12204101B2Information display apparatusMAXELL LTD·Filed 2023·Granted Jan 21, 2025·0 cites·9 claims
- 4982US2025216677A1Information display apparatusMAXELL LTD·Filed 2025·Application pending·0 cites
- 5081US11571952B2Head up display device and image display apparatus thereforMAXELL LTD·Filed 2017·Granted Feb 7, 2023·3 cites·14 claims
Showing the top 50 of 129 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →