Inventor · disambiguated record
Saburo Koyama
Also filed as: KOYAMA SABURO
7 granted patents·91 citations·filing 1989–2004
85Inventor score
Files withIDEMITSU KOSAN CO7
Top patents by PatentIndex Score
7 records- 0169US6562766B1Metal working oil compositionIDEMITSU KOSAN CO·Filed 2000·Granted May 13, 2003·15 cites·2 claims
- 0268US5376186AHeat treating oil compositionIDEMITSU KOSAN CO·Filed 1993·Granted Dec 27, 1994·20 cites·5 claims
- 0368US5250122AHeat treating oil compositionIDEMITSU KOSAN CO·Filed 1992·Granted Oct 5, 1993·19 cites·10 claims
- 0467US7846319B2Organic compound hydrogenation apparatus and method for hydrogenating organic compoundIDEMITSU KOSAN CO·Filed 2004·Granted Dec 7, 2010·8 cites·8 claims
- 0567US5171903ALubricating oil compositionIDEMITSU KOSAN CO·Filed 1991·Granted Dec 15, 1992·22 cites·14 claims
- 0641US5072067ALubricating oil compositionIDEMITSU KOSAN CO·Filed 1989·Granted Dec 10, 1991·7 cites·6 claims
- 0738US7670474B2Method of reducing/regenerating oil or preventing oxidization/degeneration thereofIDEMITSU KOSAN CO·Filed 2004·Granted Mar 2, 2010·0 cites·23 claims
Join the waitlist — get patent alerts
Get an alert when Saburo Koyama 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 →