Inventor · disambiguated record
Hiroaki Koshima
Also filed as: KOSHIMA HIROAKI
15 granted patents·8 pending applications·93 citations·filing 1991–2021
90Inventor score
Top patents by PatentIndex Score
23 records- 0186US8067345B2Refrigerator oil compositionTOKIAI TAKEO·Filed 2007·Granted Nov 29, 2011·7 cites·15 claims
- 0283US11390825B2Dispersing agent for lubricating oil, method for producing same, and lubricating oil compositionIDEMITSU KOSAN CO·Filed 2019·Granted Jul 19, 2022·1 cites·9 claims
- 0383US8137577B2Refrigerator oil composition, and refrigerator compressor and refrigeration system using the compositionKANEKO MASATO·Filed 2006·Granted Mar 20, 2012·6 cites·21 claims
- 0478US5326488AMannich reaction product and process for producing the same and use of the productIDEMITSU KOSAN CO·Filed 1993·Granted Jul 5, 1994·24 cites·12 claims
- 0574US5244588AOverbased sulfurized alkaline earth metal phenates and process for preparing sameIDEMITSU KOSAN CO·Filed 1991·Granted Sep 14, 1993·22 cites·8 claims
- 0670US5686398AAdditive for lubricant or fuel, lubricating oil composition or fuel composition containing it, and substituted hydroxyaromatic ester derivativeIDEMITSU KOSAN CO·Filed 1994·Granted Nov 11, 1997·24 cites·34 claims
- 0769US9074158B2Detergent-dispersant, additive composition for lubricant, and lubricant compositionIDEMITSU KOSAN CO·Filed 2014·Granted Jul 7, 2015·0 cites·7 claims
- 0867US8841242B2Anti-wear agent, additive composition for lubricant, and lubricant compositionKAMANO HIDEKI·Filed 2008·Granted Sep 23, 2014·1 cites·6 claims
- 0966US6906191B2Succinimide compounds and use thereofIDEMITSU KOSAN CO·Filed 2000·Granted Jun 14, 2005·7 cites·14 claims
- 1061US2010184982A1Detergent-dispersant, additive composition for lubricant, and lubricant compositionIDEMITSU KOSAN CO·Filed 2008·Application pending·0 cites
- 1157US8853139B2Detergent-dispersant, additive composition for lubricant, and lubricant compositionIWASAKI JUNYA·Filed 2012·Granted Oct 7, 2014·0 cites·6 claims
- 1253US2023365885A1Complex, and method for producing said complexIDEMITSU KOSAN CO·Filed 2021·Application pending·0 cites
- 1352US11332687B2Friction adjusting agent and lubricating oil compositionIDEMITSU KOSAN CO·Filed 2018·Granted May 17, 2022·0 cites·11 claims
- 1450US2023265353A1Lubricating oil compositionIDEMITSU KOSAN CO·Filed 2021·Application pending·0 cites
- 1548US9803155B2Lubricating oil composition, and sliding mechanism using lubricating oil compositionIDEMITSU KOSAN CO·Filed 2013·Granted Oct 31, 2017·0 cites·5 claims
- 1648US9593291B2Lubricating oil composition, and sliding mechanism using lubricating oil compositionIDEMITSU KOSAN CO·Filed 2013·Granted Mar 14, 2017·0 cites·7 claims
- 1748US8748358B2Lubricating oil additive, lubricating oil composition containing the same, various low-friction sliding members, rolling bearing, and sliding bearingKOSHIMA HIROAKI·Filed 2007·Granted Jun 10, 2014·0 cites·14 claims
- 1843US8598100B2Lubricating oil additive and lubricating oil compositionKOSHIMA HIROAKI·Filed 2004·Granted Dec 3, 2013·1 cites·13 claims
- 1942US2007042918A1Lubricating oil additive and lubricating oil compositionIDEMITSU KOSAN CO·Filed 2004·Application pending·0 cites
- 2041US2005181957A1Lubricating oil additive composition for internal combustion engineFiled 2003·Application pending·0 cites
- 2141US2008161215A1Additive For LubricantIDEMITSU KOSAN CO·Filed 2005·Application pending·0 cites
- 2232US2017198232A1Lubrication oil additive and method for manufacturing same, and lubrication oil composition using sameIDEMITSU KOSAN CO·Filed 2015·Application pending·0 cites
- 2327US2002010102A1Sulfur-containing organophosphorus compoundsFiled 1998·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Hiroaki Koshima files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →