YK

Yoshio Kawatake

NC Nakanishi Metal Works Co.: 4 patents #10 of 95Top 15%
OT Otics: 2 patents #31 of 78Top 40%
Overall (All Time): #1,205,971 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
9422981 Roller bearing cage and manufacturing method therefor as well as roller bearing manufacturing method Michiyuki Kamiji, Masaki Okano, Hiroyuki Maeda, Kenji Teshima, Yasuki Yabubayashi +1 more 2016-08-23
8037601 Manufacturing method for rocker arm 2011-10-18
7673605 Rocker arm and method of manufacturing same Naoki Hiramatsu, Akira Takeuchi, Kimihiko Todo, Tomiyasu Hirano 2010-03-09
7631425 Method for manufacturing rocker arm Michiyuki Kamiji 2009-12-15