SH

Seiichi Higashiyama

PC Polyplastics Co.: 2 patents #103 of 292Top 40%
Overall (All Time): #2,330,700 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4831073 Polyacetal composition and method of preparation thereof Susumu Okushiro, Eitaro Ikegami, Hiroyuki Miyaji 1989-05-16
4540773 Method of producing an improved polyacetal polymer Hiroyasu Komazawa, Hiroshi Hotta, Hiroshi Nakatsuji, Kiyoshi Yoko, Tuneyasu Nakashima +1 more 1985-09-10