Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Keisuke Tanaka — 4 Patents

ITItoki: 3 patents #17 of 73Top 25%
Osaka, JP: #8,571 of 24,344 inventorsTop 40%
Overall (All Time): #1,080,739 of 4,157,543Top 30%
4 Patents All Time
Keisuke Tanaka has been granted 4 US patents while listed as an inventor at Itoki. The first was granted in 2017 and the most recent in September 2024. Keisuke Tanaka ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Keisuke Tanaka in Osaka, JP.

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12089751 Chair, seat portion, and backrest Taisuke OHSHIMA, Ryu YAMAMOTO, Koki Sato, Naoki UEHARA 2024-09-17
D805338 Chair Yasuhiro Nakamura, Yoshihiro Matsuzawa, Minoru Hashimoto 2017-12-19
D804878 Chair Yasuhiro Nakamura, Yoshihiro Matsuzawa, Minoru Hashimoto 2017-12-12
D801742 Chair Yasuhiro Nakamura, Yoshihiro Matsuzawa, Minoru Hashimoto 2017-11-07