YY

Yoshiaki Yonekawa

JR Japan Synthetic Rubber: 1 patents #256 of 558Top 50%
TK Toa Nenryo Kogyo: 1 patents #121 of 220Top 60%
Overall (All Time): #2,284,300 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5385975 Polysiloxane-composite polymer particles Katsuhiro Nakamura, Minoru Kato, Yasuhisa Watanabe, Yasunori Matsubara, Yorinobu Ikeda +6 more 1995-01-31
4726525 Vibrating element for ultrasonic injection Yoshinobu Nakamura, Yoshiyasu Oba 1988-02-23