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

Koushiro Hamaguchi — 2 Patents

DCDaiso Co.: 2 patents #44 of 151Top 30%
Osaka, JP: #12,394 of 24,344 inventorsTop 55%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Koushiro Hamaguchi has been granted 2 US patents while listed as an inventor at Daiso Co.. All of these patents were granted in 2014. Koushiro Hamaguchi ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Koushiro Hamaguchi in Osaka, JP.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8920894 Rubber-resin laminate Toyofumi Otaka, Yoritaka Yasuda, Taro Ozaki 2014-12-30
8871118 Semi-conductive rubber composition and vulcanizate thereof Yoritaka Yasuda, Toyofumi Otaka, Tadahiro Ono 2014-10-28