Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Daisuke Tsugawa — 1 Patent

ZEZeon: 1 patents #435 of 734Top 60%
Kawasaki, JP: #10,242 of 15,035 inventorsTop 70%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
Daisuke Tsugawa has been granted 1 US patent while listed as an inventor at Zeon. All of these patents were granted in 2004. Daisuke Tsugawa ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list Daisuke Tsugawa in Kawasaki, JP.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6689843 Acrylic rubber composition, crosslinkable acrylic rubber composition, and crosslinked object obtained therefrom Isao Kubota, Koichi Nishimura 2004-02-10