YY

Yasukichi Yanagihara

TK Tomei Sangyo Kabushiki Kaisha: 2 patents #9 of 35Top 30%
Overall (All Time): #2,339,706 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4788227 Contact lens formed from a hydrogel fundamental material Takuo Kato 1988-11-29
4699946 Hydrogel fundamental material Takuo Kato 1987-10-13