NM

Nobuyuki Murakami

NC Nippon Piston Ring Co.: 1 patents #2 of 7Top 30%
TO Toyota: 1 patents #227 of 840Top 30%
Overall (2004): #144,945 of 270,089Top 55%
1
Patents 2004

Issued Patents 2004

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6682078 Ring groove for oil ring with coil expander of piston Hideshi Hitosugi, Taro Itoh 2004-01-27