Inventor · disambiguated record
Tsuyoshi Yuki
Also filed as: YUKI TSUYOSHI
14 granted patents·3 pending applications·149 citations·filing 1995–2025
91Inventor score
Top patents by PatentIndex Score
17 records- 0189US10941368B2Lubricating oil composition comprising dispersant comb polymersEVONIK OPERATIONS GMBH·Filed 2017·Granted Mar 9, 2021·2 cites·20 claims
- 0288US6284362B1Absorbent compositions, methods for producing thereof and absorbent productsSANYO CHEMICAL IND LTD·Filed 2000·Granted Sep 4, 2001·44 cites·28 claims
- 0386US6746993B2Viscosity index improver and lube oil containing the sameSANYO CHEMICAL IND LTD·Filed 2002·Granted Jun 8, 2004·32 cites·18 claims
- 0470US12234354B2Viscosity index improversEVONIK OPERATIONS GMBH·Filed 2020·Granted Feb 25, 2025·0 cites·6 claims
- 0567US2025154351A1Viscosity index improversEVONIK OPERATIONS GMBH·Filed 2025·Application pending·0 cites
- 0666US7557241B2Method for producing α,β-unsaturated carboxylic acid ester, α,β-unsaturated carboxylic acid ester, and lubricating oil additiveSANYO CHEMICAL IND LTD·Filed 2007·Granted Jul 7, 2009·1 cites·10 claims
- 0764US11795413B2Viscosity index improver and lubricant compositions thereofEVONIK OPERATIONS GMBH·Filed 2022·Granted Oct 24, 2023·0 cites·19 claims
- 0857US11639481B2Lubricant additive compositionEVONIK OPERATIONS GMBH·Filed 2022·Granted May 2, 2023·0 cites·20 claims
- 0955US5747570AWater-absorbing resin compositionSANYO CHEMICAL IND LTD·Filed 1995·Granted May 5, 1998·12 cites·6 claims
- 1044US6156678AWater absorbing agent absorbent materialSANYO CHEMICAL IND LTD·Filed 1997·Granted Dec 5, 2000·20 cites·4 claims
- 1143US2004077509A1Viscosity index improver and lube oil containing the sameFiled 2003·Application pending·0 cites
- 1242US7579305B2Friction regulator for lubricating oil and lubricating oil compositionSANYO CHEMICAL IND LTD·Filed 2003·Granted Aug 25, 2009·0 cites·13 claims
- 1340US5789507AMethod for preparing water absorbent resinSANYO CHEMICAL IND LTD·Filed 1996·Granted Aug 4, 1998·17 cites·9 claims
- 1439US2003036488A1Viscosity index improver and lube oil containing the sameSANYO CHEMICAL IND LTD·Filed 2002·Application pending·0 cites
- 1538US5801238AMethod for producing water absorbent resin and water absorbentSANYO CHEMICAL IND LTD·Filed 1996·Granted Sep 1, 1998·14 cites·6 claims
- 1638US5728792AMethod for preparing water absorbent resinSANYO CHEMICAL IND LTD·Filed 1996·Granted Mar 17, 1998·5 cites·6 claims
- 1732US5886120AMethod for preparing water absorbent resinSANYO CHEMICAL IND LTD·Filed 1997·Granted Mar 23, 1999·2 cites·4 claims
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