YA

Yoshinori Asanuma

SK Seibu Polymer Kasei Kabushiki Kaisha: 3 patents #1 of 11Top 10%
Overall (All Time): #1,632,549 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5879032 Flexible joint for a culvert — 1999-03-09
5794987 Flexible joint for a culvert — 1998-08-18
5704657 Flexible joint for a culvert — 1998-01-06