Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
HK

Hideki Kai — 5 Patents

Sony: 3 patents #10,793 of 25,231Top 45%
MIMitutoyo: 1 patents #455 of 721Top 65%
Panasonic: 1 patents #13,316 of 21,108Top 65%
Nagoya, JP: #1,713 of 6,680 inventorsTop 30%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Hideki Kai has been granted 5 US patents while listed as an inventor at Sony. The first was granted in 2013 and the most recent in November 2022. Hideki Kai ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Hideki Kai in Nagoya, JP.

Patents per Year

Patents granted per year, 2013 to 2022Bar chart with a peak of 2 patents in 2014.peak 22013: 1 patents20132014: 2 patents20142016: 1 patents20162022: 1 patents2022

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11513316 Single focus image pickup optical system, and image pickup device and camera system using single focus image pickup optical system Yasunori Touchi 2022-11-29
9291442 Contour measuring apparatus Hiroyuki Hidaka, Mitsuhisa Nakano 2016-03-22
8922907 Variable focal length lens system and imaging apparatus Motoyuki Ohtake, Hiroyuki Matsumoto 2014-12-30 $187,000
8730588 Zoom lens and image pickup unit Syuuji Maki 2014-05-20 $133,000
8446680 Zoom lens and imaging apparatus Makoto Kanai 2013-05-21 $152,000