Inventor · disambiguated record
Masafumi Okada
Also filed as: OKADA MASAFUMI
44 granted patents·14 pending applications·1,819 citations·filing 1999–2025
97Inventor score
Top patents by PatentIndex Score
58 records- 0197US11537001B2Lighting deviceJAPAN DISPLAY INC·Filed 2022·Granted Dec 27, 2022·4 cites·7 claims
- 0297US11294223B2Lighting deviceJAPAN DISPLAY INC·Filed 2021·Granted Apr 5, 2022·7 cites·14 claims
- 0396US11378841B2Light emitting device and illumination deviceJAPAN DISPLAY INC·Filed 2021·Granted Jul 5, 2022·3 cites·5 claims
- 0495US11703710B2Lighting device of thin, small light distribution angle and less power consumptionJAPAN DISPLAY INC·Filed 2022·Granted Jul 18, 2023·2 cites·15 claims
- 0595US7273488B2High-rigidity forceps tip assembly for active forceps and active forceps equipped with the sameUNIV TOKYO·Filed 2003·Granted Sep 25, 2007·590 cites·11 claims
- 0695US6793669B2Active forcepsUNIV TOKYO·Filed 2002·Granted Sep 21, 2004·1.1k cites·9 claims
- 0794US11513279B2Lighting deviceJAPAN DISPLAY INC·Filed 2022·Granted Nov 29, 2022·2 cites·17 claims
- 0885US6494588B1Spread illuminating apparatus with an optical path conversion meansMINEBEA CO LTD·Filed 2000·Granted Dec 17, 2002·32 cites·9 claims
- 0982US7396591B2Wiring substrateJAPAN AVIATION ELECTRON·Filed 2006·Granted Jul 8, 2008·10 cites·4 claims
- 1081US6293683B1Spread illuminating apparatusMINEBEA CO LTD·Filed 1999·Granted Sep 25, 2001·41 cites·2 claims
- 1179US12013610B2Light emitting device and illumination deviceJAPAN DISPLAY INC·Filed 2023·Granted Jun 18, 2024·0 cites·6 claims
- 1278US12099273B2Lighting device with LED facing a disc shaped light guideJAPAN DISPLAY INC·Filed 2023·Granted Sep 24, 2024·0 cites·5 claims
- 1378US11852303B2Lighting deviceJAPAN DISPLAY INC·Filed 2023·Granted Dec 26, 2023·0 cites·8 claims
- 1478US11747670B2Lighting deviceJAPAN DISPLAY INC·Filed 2022·Granted Sep 5, 2023·0 cites·9 claims
- 1577US8815065B2Electrochemical gas sensor and mounting structure thereforFIGARO ENG·Filed 2013·Granted Aug 26, 2014·4 cites·8 claims
- 1675US11668976B2Light emitting device and illumination deviceJAPAN DISPLAY INC·Filed 2022·Granted Jun 6, 2023·0 cites·6 claims
- 1773US11789193B2Lighting deviceJAPAN DISPLAY INC·Filed 2022·Granted Oct 17, 2023·0 cites·4 claims
- 1870US12282224B2Backlight and display deviceJAPAN DISPLAY INC·Filed 2024·Granted Apr 22, 2025·0 cites·12 claims
- 1970US11768325B2Display device, illumination device, and light guiding memberJAPAN DISPLAY INC·Filed 2022·Granted Sep 26, 2023·0 cites·21 claims
- 2070US6343867B1Spread illuminating apparatusMINEBEA CO LTD·Filed 2000·Granted Feb 5, 2002·13 cites·6 claims
- 2169US12197075B2Backlight and liquid crystal display deviceJAPAN DISPLAY INC·Filed 2024·Granted Jan 14, 2025·0 cites·8 claims
- 2268US11333818B2Display device, illumination device, and light guiding memberJAPAN DISPLAY INC·Filed 2021·Granted May 17, 2022·0 cites·12 claims
- 2367US12320497B2Lighting deviceJAPAN DISPLAY INC·Filed 2024·Granted Jun 3, 2025·0 cites·10 claims
- 2467US11655944B2Lighting deviceJAPAN DISPLAY INC·Filed 2022·Granted May 23, 2023·0 cites·15 claims
- 2566US12085270B2Illumination apparatusJAPAN DISPLAY INC·Filed 2023·Granted Sep 10, 2024·0 cites·12 claims
- 2666US8382527B2Connector enabling increased density of contactsJAPAN AVIATION ELECTRON·Filed 2010·Granted Feb 26, 2013·1 cites·12 claims
- 2766US6334691B1Spread illuminating apparatusMINEBEA CO LTD·Filed 2000·Granted Jan 1, 2002·10 cites·12 claims
- 2864US12038648B2Illumination device and display deviceJAPAN DISPLAY INC·Filed 2023·Granted Jul 16, 2024·0 cites·14 claims
- 2963US12292593B2Lighting deviceJAPAN DISPLAY INC·Filed 2023·Granted May 6, 2025·0 cites·10 claims
- 3063US12248167B2Illumination deviceJAPAN DISPLAY INC·Filed 2024·Granted Mar 11, 2025·0 cites·5 claims
- 3163US12018831B2Lighting deviceJAPAN DISPLAY INC·Filed 2023·Granted Jun 25, 2024·0 cites·8 claims
- 3262US12196410B2Lighting deviceJAPAN DISPLAY INC·Filed 2023·Granted Jan 14, 2025·0 cites·14 claims
- 3362US11898709B2Lighting deviceJAPAN DISPLAY INC·Filed 2023·Granted Feb 13, 2024·0 cites·15 claims
- 3462US10559528B2Semiconductor device including external terminal groupsROHM CO LTD·Filed 2016·Granted Feb 11, 2020·1 cites·10 claims
- 3562US2024337787A1Illumination deviceJAPAN DISPLAY INC·Filed 2024·Application pending·0 cites
- 3661US2024219622A1Illumination deviceJAPAN DISPLAY INC·Filed 2024·Application pending·0 cites
- 3760US12331909B2Lighting deviceJAPAN DISPLAY INC·Filed 2023·Granted Jun 17, 2025·0 cites·13 claims
- 3860US11828454B2Lighting deviceJAPAN DISPLAY INC·Filed 2022·Granted Nov 28, 2023·0 cites·11 claims
- 3960US2025264655A1Backlight and display deviceJAPAN DISPLAY INC·Filed 2025·Application pending·0 cites
- 4060US2025264654A1Backlight and display deviceJAPAN DISPLAY INC·Filed 2025·Application pending·0 cites
- 4158US11815259B2Lighting deviceJAPAN DISPLAY INC·Filed 2022·Granted Nov 14, 2023·0 cites·7 claims
- 4257US2025110368A1Liquid crystal display deviceJAPAN DISPLAY INC·Filed 2024·Application pending·0 cites
- 4355US11739909B2Lighting deviceJAPAN DISPLAY INC·Filed 2022·Granted Aug 29, 2023·0 cites·6 claims
- 4455US11442215B2Light emitting device including a plurality of first and second protrusionsJAPAN DISPLAY INC·Filed 2021·Granted Sep 13, 2022·0 cites·8 claims
- 4554US6948400B2Backlash clutch and joint mechanism for a robot comprising the clutchUNIV TOKYO·Filed 2003·Granted Sep 27, 2005·8 cites·12 claims
- 4654US6505946B2Spread illumination apparatusMINEBEA CO LTD·Filed 1999·Granted Jan 14, 2003·17 cites·18 claims
- 4753US2022066266A1Illuminating device and display apparatusJAPAN DISPLAY INC·Filed 2021·Application pending·0 cites
- 4852US2022012665A1Work instruction device, work instruction system, and work instruction methodHITACHI LTD·Filed 2021·Application pending·0 cites
- 4951US2025020311A1Lighting deviceJAPAN DISPLAY INC·Filed 2024·Application pending·0 cites
- 5049US2008196798A1Surface modification method for conductive metal materialJAPAN AVIATION ELECTRON·Filed 2008·Application pending·0 cites
Showing the top 50 of 58 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →