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USPTO Patent Rankings Data through Dec 31, 2025
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Youichi Ooki — 4 Patents

HDHitachi Displays: 2 patents #384 of 752Top 55%
JDJapan Display: 2 patents #741 of 1,204Top 65%
HCHitachi Device Engineering Co.: 1 patents #292 of 514Top 60%
Panasonic: 1 patents #13,316 of 21,108Top 65%
Tokyo, JP: #30,468 of 90,295 inventorsTop 35%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Youichi Ooki has been granted 4 US patents while listed as an inventor at Hitachi Displays. The first was granted in 2007 and the most recent in August 2019. Youichi Ooki ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Youichi Ooki in Tokyo, JP.

Patents per Year

Patents granted per year, 2007 to 2019Bar chart with a peak of 1 patents in 2007.peak 12007: 1 patents20072012: 1 patents20122015: 1 patents20152019: 1 patents2019

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10395573 Display apparatus Hiroki Uchiyama 2019-08-27
9111474 Display device Yoshihiro Kotani 2015-08-18
8144096 Liquid crystal display device Hiroyuki Takahashi, Shigeo Adachi 2012-03-27
7167141 Liquid crystal display device Mitsuru Goto, Yuichi Numata, Masato Sawahata, Yoshinori Aoki 2007-01-23 $138,000

Frequent Collaborators

Mitsuru Goto1 shared
Hiroyuki Takahashi1 shared
Shigeo Adachi1 shared
Masato Sawahata1 shared
Hiroki Uchiyama1 shared
Yoshinori Aoki1 shared

Nearby-Ranked Inventors

Jagadeesh Kandasamy4
Ross CABOT4
George Ueda4
Franz A. Gruswitz4
Tommy Glimberg4
Vinayakaraddy Gulabal4
Sandra Bittorf4
Aviel FOGEL4
Eric Matthew Walton4