P

Inventor

OKAMURA HARUKI

JP31 patents
⚠️ This page may combine multiple inventors who share the name “OKAMURA HARUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SUMITOMO CHEMICAL CO

21 patents
US5049604ASep 17, 1991

Process for producing piperidine derivative and stabilized resin composition containing said derivative

SUMITOMO CHEMICAL CO22 citations92
US4774274ASep 27, 1988

Thermally stabilized butadiene resins containing a hindered phenolic acrylate or methacrylate

SUMITOMO CHEMICAL CO30 citations90
US4721744AJan 26, 1988

Stabilized polyurethane compositions

SUMITOMO CHEMICAL CO21 citations81
US4576734AMar 18, 1986

Stabilizer for synthetic resins

SUMITOMO CHEMICAL CO24 citations81
US4308180ADec 29, 1981

Sulfide resin for rubber

SUMITOMO CHEMICAL CO10 citations74
US4769479ASep 6, 1988

Hydroxyphenylpropionic acid ester with novel crystalline structure and production thereof

SUMITOMO CHEMICAL CO6 citations73
US4739080AApr 19, 1988

Purification of hydroxyphenylpropionic acid ester

SUMITOMO CHEMICAL CO7 citations73
US4725634AFeb 16, 1988

Stabilizer for synthetic resins

SUMITOMO CHEMICAL CO14 citations73
US4721792AJan 26, 1988

N,N',N",N'"-tetrakis(substituted benzyl)-acetylenecarbamide derivatives

SUMITOMO CHEMICAL CO10 citations73
US4719257AJan 12, 1988

Polyolefin resin composition

SUMITOMO CHEMICAL CO13 citations73
US4717745AJan 5, 1988

Stabilized polyacetal resin compositions

SUMITOMO CHEMICAL CO13 citations73
US4670488AJun 2, 1987

Piperidine derivatives, their production and use as stabilizers

SUMITOMO CHEMICAL CO17 citations73
US4670489AJun 2, 1987

Piperidine derivatives, their production and use as stabilizers

SUMITOMO CHEMICAL CO9 citations73
US5302746AApr 12, 1994

Process for producing carboxylic acid ester

SUMITOMO CHEMICAL CO9 citations69
US4687756AAug 18, 1987

Vulcanization accelerator, a means for accelerating vulcanization and an improved rubber product containing said accelerator therein

SUMITOMO CHEMICAL CO9 citations69
US4845244AJul 4, 1989

Production of hydroxyphenylpropionic acid ester having a novel crystalline structure

SUMITOMO CHEMICAL CO3 citations62
US4754045AJun 28, 1988

Method for producing hydroxyphenylpropionic acid ester

SUMITOMO CHEMICAL CO5 citations62
US4745195AMay 17, 1988

Ultraviolet ray absorbing agent

SUMITOMO CHEMICAL CO4 citations62
US4603159AJul 29, 1986

Phenolic compounds and stabilizers containing the same

SUMITOMO CHEMICAL CO5 citations59
US4851551AJul 25, 1989

Ultraviolet ray absorbing agent

SUMITOMO CHEMICAL CO0 citations51
US4719037AJan 12, 1988

Piperidine derivatives, production process therefor, and stabilizers for organic substances containing said derivatives as an active component

SUMITOMO CHEMICAL CO1 citations51

HAYASHIBARA BIOCHEM LAB

7 patents

HYOGO COLLEGE MEDICINE

1 patent

HAY ASHIBARA SEIBUTSU KAGAKU K

1 patent

OKAMURA HARUKI

1 patent