IK

Isao Kurihara

NO Nippon Oil: 2 patents #264 of 773Top 35%
HI Hitachi: 1 patents #17,742 of 28,497Top 65%
JE Jx Nippon Oil & Energy: 1 patents #195 of 416Top 50%
NO Nippon Mitsubishi Oil: 1 patents #70 of 158Top 45%
Overall (All Time): #987,931 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
10087389 Lubricating oil composition Shingo MATSUKI, Go Tatsumi, Hironori Isoh, Masaaki Itou 2018-10-02
8415283 Lubricating oil composition for diesel engine Mineo Kagaya 2013-04-09
7612025 Lubricating oil composition Kazuhiro Yagishita, Shouzaburou Konishi 2009-11-03
6704386 Fuel channel box and a method of manufacturing the same Michio Nakayama, Takehiro Seto, Tatsuo Seki 2004-03-09
6642189 Engine oil compositions Jinichi Igarashi, Kiyoshi Inoue 2003-11-04