RM

Ryuichi Masumori

Shell Oil Compny: 2 patents #1,477 of 4,423Top 35%
NT Ntn: 1 patents #814 of 1,364Top 60%
SK Showa Shell Sekiyu K.K.: 1 patents #27 of 82Top 35%
Overall (All Time): #1,616,703 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6500787 Lubricant composition and its use in a ball joint Keiji Tanaka, Yoshihisa Yatsuzuka 2002-12-31
6403538 Grease composition for constant velocity joints Takahiro Ozaki, Tsutomu Yoshida 2002-06-11
6258760 Grease composition for constant velocity joint Takahiro Ozaki, Tsutomu Yoshida, Takao Nishimura, Keizo Nagasawa, Yukio Asahara 2001-07-10