DS

Denpei Sudo

DS Daikyo Gomu Seiko: 2 patents #6 of 12Top 50%
YC Yamanouchi Pharmaceutical Co.: 2 patents #177 of 516Top 35%
TI Takeda Chemical Industries: 1 patents #745 of 1,420Top 55%
Overall (All Time): #1,659,780 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5078941 Process for the production of a resin-laminated rubber closure for a medical vial Yutaka Tatsumi, Hideo Yoshitaka, Tatsuya Matsunaga, Tamotsu Okuda 1992-01-07
4915243 Resin-laminated rubber closure for a medical vial Yutaka Tatsumi, Hideo Yoshitaka, Tatsuya Matsunaga, Tamotsu Okuda 1990-04-10
4441621 Pierceable closure member for vial Yoshiharu Matukura 1984-04-10