RH

Ryoji Handa

DC Diafloc Co.: 1 patents #1 of 4Top 25%
Mitsubishi Electric: 1 patents #70 of 351Top 20%
NC Nitto Chemical Industry Co.: 1 patents #6 of 18Top 35%
Overall (1982): #32,402 of 81,411Top 40%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4313863 Modification of acrylamide polymers Norimasa Yoshida, Jun Hosoda, Akihisa Furuno 1982-02-02