RH

Ritsuko Hirakawa

SK Showa Denko K.K.: 2 patents #639 of 1,736Top 40%
Overall (All Time): #2,116,014 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7696366 Production process of bifunctional epoxy monomer by selective oxidation of diolefin compound Hiroshi Uchida, Yuko Sakata, Kazuhiko Sato, Masanori Ookoshi 2010-04-13
7642334 Polymer of polycarbonate diol having an alicyclic structure and production process thereof Hiroshi Uchida 2010-01-05