TH

Tsugane Hirase

NC Nippon Piston Ring Co.: 2 patents #59 of 208Top 30%
Nissan Motor Co.: 1 patents #4,519 of 8,689Top 55%
Overall (All Time): #1,942,014 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10344860 Highly heat conductive piston ring for internal combustion engine Hiromichi Yokokawa, Kazuhiro Fujimura, Junpei Ogawa, Takaaki Kondo, Tomonori Miyazawa +2 more 2019-07-09
7493882 Combination of a cylinder liner and a piston ring Iwao Hiraishi, Katsuaki Ogawa, Hiromi Ishikawa, Kazuhiro Sameshima 2009-02-24