Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
KH

Koichi Hatakeyama — 4 Patents in 2021

TCTpr Co.: 3 patents #1 of 14Top 8%
SISeiko Instruments: 1 patents #12 of 40Top 30%
TCTpr Industry Co.: 1 patents #2 of 4Top 50%
Overall (2021): #45,868 of 548,734Top 9%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11168642 Cylinder liner for cast-covering, and method for manufacturing cylinder block Tomoki Takiguchi, Yoshihiko Aoki, Yuusuke Okuyama, Mako Abe 2021-11-09
11141783 Cylinder liner for insert casting Yasutomo TOKAIRIN, Kiyoyuki Kawai 2021-10-12
11047333 Cylinder liner, block manufacturing method and cylinder liner manufacturing method Akira Sato 2021-06-29
10936269 Printing system, printer, and printing control method 2021-03-02