RM

Ryoji Matsukawa

DC Delta Kogyo Co.: 1 patents #54 of 132Top 45%
DC Delta Tooling Co.: 1 patents #50 of 93Top 55%
Overall (All Time): #2,077,790 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8528982 Seat Etsunori Fujita, Yumi Ogura, Seiji Kawasaki, Eiji Sugimoto, Soichi Makita +4 more 2013-09-10
7121626 Headrest lock structure with lock slots, method for forming lock slots in headrest pole and method for producing headrest pole Yoso Akehi, Hiroyuki Ishikawa 2006-10-17