Inventor
KOSHIMA HIROAKI
JP19 patents
⚠️ This page may combine multiple inventors who share the name “KOSHIMA HIROAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
IDEMITSU KOSAN CO
9 patentsUS5686398ANov 11, 1997
Additive for lubricant or fuel, lubricating oil composition or fuel composition containing it, and substituted hydroxyaromatic ester derivative
IDEMITSU KOSAN CO24 citations90
US5326488AJul 5, 1994
Mannich reaction product and process for producing the same and use of the product
IDEMITSU KOSAN CO24 citations89
US5244588ASep 14, 1993
Overbased sulfurized alkaline earth metal phenates and process for preparing same
IDEMITSU KOSAN CO22 citations89
US6906191B2Jun 14, 2005
Succinimide compounds and use thereof
IDEMITSU KOSAN CO7 citations73
US11390825B2Jul 19, 2022
Dispersing agent for lubricating oil, method for producing same, and lubricating oil composition
IDEMITSU KOSAN CO1 citations61
US11332687B2May 17, 2022
Friction adjusting agent and lubricating oil composition
IDEMITSU KOSAN CO0 citations57
US9074158B2Jul 7, 2015
Detergent-dispersant, additive composition for lubricant, and lubricant composition
IDEMITSU KOSAN CO0 citations50
US9803155B2Oct 31, 2017
Lubricating oil composition, and sliding mechanism using lubricating oil composition
IDEMITSU KOSAN CO0 citations36
US9593291B2Mar 14, 2017
Lubricating oil composition, and sliding mechanism using lubricating oil composition
IDEMITSU KOSAN CO0 citations36
ACE K COMP CO LTD
2 patentsKOSHIMA HIROAKI
2 patentsUS8748358B2Jun 10, 2014
Lubricating oil additive, lubricating oil composition containing the same, various low-friction sliding members, rolling bearing, and sliding bearing
KOSHIMA HIROAKI0 citations46
US8598100B2Dec 3, 2013
Lubricating oil additive and lubricating oil composition
KOSHIMA HIROAKI1 citations45