Inventor · disambiguated record
Ryuji Ukai
Also filed as: UKAI Ryuji
17 granted patents·3 pending applications·15 citations·filing 2015–2022
88Inventor score
Files withHITACHI-LG DATA STORAGE INC14SENJU METAL INDUSTRY CO3HITACHI HIGH TECH CORP2HITACHI CHEMICAL CO LTD1
Top patents by PatentIndex Score
20 records- 0184US11112610B2Image display device and head mounted display using the sameHITACHI LG DATA STORAGE INC·Filed 2020·Granted Sep 7, 2021·2 cites·19 claims
- 0284US10771772B2Image display deviceHITACHI LG DATA STORAGE INC·Filed 2018·Granted Sep 8, 2020·3 cites·13 claims
- 0382US10401631B2Image display deviceHITACHI LG DATA STORAGE INC·Filed 2015·Granted Sep 3, 2019·2 cites·20 claims
- 0477US10976554B2Light guide plate and image display apparatusHITACHI LG DATA STORAGE INC·Filed 2019·Granted Apr 13, 2021·2 cites·10 claims
- 0576US11143872B2Waveguide and video image display deviceHITACHI LG DATA STORAGE INC·Filed 2018·Granted Oct 12, 2021·2 cites·14 claims
- 0673US11106040B2Video display apparatus and video display systemHITACHI LG DATA STORAGE INC·Filed 2019·Granted Aug 31, 2021·1 cites·15 claims
- 0772US10304369B2Image display device having a light source and a control unit configured to control a driving current at first and second gradation valuesHITACHI LG DATA STORAGE INC·Filed 2017·Granted May 28, 2019·1 cites·16 claims
- 0869US10839732B2Video display deviceHITACHI LG DATA STORAGE INC·Filed 2017·Granted Nov 17, 2020·1 cites·5 claims
- 0964US12233484B2Flux and solder pasteSENJU METAL INDUSTRY CO·Filed 2021·Granted Feb 25, 2025·0 cites·13 claims
- 1062US10859839B2Head mounted displayHITACHI LG DATA STORAGE INC·Filed 2019·Granted Dec 8, 2020·0 cites·14 claims
- 1161US10645818B2Soldering methodSENJU METAL INDUSTRY CO·Filed 2017·Granted May 5, 2020·1 cites·4 claims
- 1257US11442353B2Virtual image projection deviceHITACHI LG DATA STORAGE INC·Filed 2021·Granted Sep 13, 2022·0 cites·9 claims
- 1357US2025012732A1Surface inspection apparatusHITACHI HIGH TECH CORP·Filed 2022·Application pending·0 cites
- 1454US11428939B2Light-guiding plate, light-guiding plate manufacturing method, and video display deviceHITACHI LG DATA STORAGE INC·Filed 2018·Granted Aug 30, 2022·0 cites·13 claims
- 1553US12298510B2Head-mounted displayHITACHI LG DATA STORAGE INC·Filed 2020·Granted May 13, 2025·0 cites·14 claims
- 1653US11543648B2Virtual image projection deviceHITACHI LG DATA STORAGE INC·Filed 2018·Granted Jan 3, 2023·0 cites·12 claims
- 1750US12459060B2Solder pasteSENJU METAL INDUSTRY CO·Filed 2020·Granted Nov 4, 2025·0 cites·7 claims
- 1850US2025314484A1Sample surface quality management deviceHITACHI HIGH TECH CORP·Filed 2022·Application pending·0 cites
- 1938US12306427B2Video display device and video display systemHITACHI LG DATA STORAGE INC·Filed 2020·Granted May 20, 2025·0 cites·13 claims
- 2034US2018203338A1Illumination Device, Illumination Method, and Video Projection Apparatus Using the SameHITACHI CHEMICAL CO LTD·Filed 2015·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Ryuji Ukai files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →