MK

Makoto Kajiwara

NC Nippon Piston Ring Co.: 1 patents #15 of 40Top 40%
Overall (2019): #360,091 of 560,194Top 65%
1
Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10330198 Multi-piece oil ring Atsushi Chiba, Kazuhiro Fujimura, Iwao Hiraishi 2019-06-25