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

Futoshi Kai — 2 Patents

Canon: 2 patents #12,732 of 19,416Top 70%
Kawasaki, JP: #8,037 of 15,035 inventorsTop 55%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
Futoshi Kai has been granted 2 US patents while listed as an inventor at Canon. The first was granted in 1998 and the most recent in September 1999. Futoshi Kai ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Futoshi Kai in Kawasaki, JP.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
5953062 Exposure control device for optical apparatus Masami Sugimori 1999-09-14 $222,000
5812189 Video camera apparatus Kenichi Kimura, Masahiko Tsuzuki, Takashi Watanabe, Harunobu Ichinose 1998-09-22 $53,000