KO

Kouichi Ohkawa

NK Nippon Kayaku: 3 patents #255 of 1,103Top 25%
Overall (All Time): #1,633,525 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
5900503 Process for producing optically active cyanohydrins Yoshinobu Miyazawa, Taichi Koshigoe, Jouji Sekine, Shinichiro Saeki 1999-05-04
5637680 Process for the preparation of etoposide phosphate and intermediate thereof Yoshinobu Miyazawa, Hitoshi Sato, Hiroshi Yoshikawa, Noriko Tomiyoshi 1997-06-10
5606039 Etoposide phosphate and preparative intermediates Yoshinobu Miyazawa, Hitoshi Sato, Hiroshi Yoshikawa, Noriko Tomiyoshi 1997-02-25