Inventor
YUKI TSUYOSHI
JP14 patents
⚠️ This page may combine multiple inventors who share the name “YUKI TSUYOSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANYO CHEMICAL IND LTD
10 patentsUS6156678ADec 5, 2000
Water absorbing agent absorbent material
SANYO CHEMICAL IND LTD20 citations92
US6746993B2Jun 8, 2004
Viscosity index improver and lube oil containing the same
SANYO CHEMICAL IND LTD32 citations91
US6284362B1Sep 4, 2001
Absorbent compositions, methods for producing thereof and absorbent products
SANYO CHEMICAL IND LTD44 citations91
US5789507AAug 4, 1998
Method for preparing water absorbent resin
SANYO CHEMICAL IND LTD17 citations82
US5801238ASep 1, 1998
Method for producing water absorbent resin and water absorbent
SANYO CHEMICAL IND LTD14 citations72
US5747570AMay 5, 1998
Water-absorbing resin composition
SANYO CHEMICAL IND LTD12 citations72
US5728792AMar 17, 1998
Method for preparing water absorbent resin
SANYO CHEMICAL IND LTD5 citations72
US5886120AMar 23, 1999
Method for preparing water absorbent resin
SANYO CHEMICAL IND LTD2 citations61
US7557241B2Jul 7, 2009
Method for producing α,β-unsaturated carboxylic acid ester, α,β-unsaturated carboxylic acid ester, and lubricating oil additive
SANYO CHEMICAL IND LTD1 citations48
US7579305B2Aug 25, 2009
Friction regulator for lubricating oil and lubricating oil composition
SANYO CHEMICAL IND LTD0 citations41
EVONIK OPERATIONS GMBH
4 patentsUS10941368B2Mar 9, 2021
Lubricating oil composition comprising dispersant comb polymers
EVONIK OPERATIONS GMBH2 citations72
US11795413B2Oct 24, 2023
Viscosity index improver and lubricant compositions thereof
EVONIK OPERATIONS GMBH0 citations61
US12234354B2Feb 25, 2025
Viscosity index improvers
EVONIK OPERATIONS GMBH0 citations51
US11639481B2May 2, 2023
Lubricant additive composition
EVONIK OPERATIONS GMBH0 citations51