HS

Hiroshi Sakamaki

NC Nippon Piston Ring Co.: 1 patents #6 of 11Top 55%
TO Toyota: 1 patents #85 of 362Top 25%
Overall (1982): #58,477 of 81,411Top 75%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4315719 Non-lubricated rotary pump with discharge through end heads Toshiyuki Maeda, Fumihiro Ushijima, Tadashi Saitou 1982-02-16