SY

Sadao Yonehara

NO Nippon Oil: 1 patents #392 of 773Top 55%
SI Sumitomo Metal Industries: 1 patents #630 of 1,462Top 45%
Overall (All Time): #4,031,362 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4437883 Process for producing metal powder Toshihiko Kubo, Minoru Ichidate, Toshiyuki Kawai, Yoshihisa Koiwai, Kazuhiko Endo 1984-03-20