YT

Yasuharu Tahaka

SC Shin-Etsu Chemical Co.: 1 patents #1,340 of 2,176Top 65%
TC Toyo Contact Lens Co.: 1 patents #17 of 29Top 60%
📍 Koka, JP: #90 of 142 inventorsTop 65%
Overall (All Time): #3,997,057 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4594401 Oxygen permeable hard contact lens formed from styrene monomer containing a silyl or siloxane group Kozo Takahashi, Kenichi Isobe, Shoji Ichinohe 1986-06-10