Inventor
HAMAMOTO SHIGEKI
JP20 patents
⚠️ This page may combine multiple inventors who share the name “HAMAMOTO SHIGEKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMASAKI TOMOAKI
9 patentsUS9266972B2Feb 23, 2016
Polyrotaxane composition
YAMASAKI TOMOAKI15 citations82
US9068051B2Jun 30, 2015
Method for producing refined polyrotaxane
YAMASAKI TOMOAKI11 citations82
US9409999B2Aug 9, 2016
Production method for hydrophilic modified polyrotaxane
YAMASAKI TOMOAKI3 citations71
US9475908B2Oct 25, 2016
Method for producing pseudopolyrotaxane aqueous dispersion
YAMASAKI TOMOAKI2 citations60
US9120901B2Sep 1, 2015
Method for producing pseudopolyrotaxane
YAMASAKI TOMOAKI2 citations60
US9205104B2Dec 8, 2015
Hydrophilic modified polyrotaxane composition
YAMASAKI TOMOAKI0 citations50
US9150679B2Oct 6, 2015
Saponification product of vinyl ester/ethylenically unsaturated carboxylic acid ester copolymer and process for producing the same
YAMASAKI TOMOAKI0 citations49
US9238696B2Jan 19, 2016
Production method for powdered hydrophilic modified polyrotaxane
YAMASAKI TOMOAKI0 citations40
US9938382B2Apr 10, 2018
Method for producing pseudopolyrotaxane
YAMASAKI TOMOAKI0 citations39
SUMITOMO SEIKA CHEMICALS
8 patentsUS6979722B2Dec 27, 2005
Process for production of alkyllene oxide polymers
SUMITOMO SEIKA CHEMICALS43 citations91
US6933356B2Aug 23, 2005
Particles of carboxylated polymer
SUMITOMO SEIKA CHEMICALS7 citations72
US6869994B1Mar 22, 2005
Carboxylated polymer composition
SUMITOMO SEIKA CHEMICALS11 citations72
US5629395AMay 13, 1997
Process for producing cross-linked polymer containing carboxyl group
SUMITOMO SEIKA CHEMICALS8 citations72
US6599979B2Jul 29, 2003
Carboxylated polymer composition
SUMITOMO SEIKA CHEMICALS3 citations60
US6084032AJul 4, 2000
Carboxylated polymer composition
SUMITOMO SEIKA CHEMICALS4 citations60
US6235828B1May 22, 2001
Aqueous polymerization of acrylamide in the presence of polyvinylpyrrolidone
SUMITOMO SEIKA CHEMICALS1 citations50
US7390865B2Jun 24, 2008
Process for producing water-soluble carboxylated polymer
SUMITOMO SEIKA CHEMICALS0 citations40