Inventor

Yoji Sakito

Inventor

Montreal, CA

Overview

25→

Patents

1981–1997

Patent span

Chemistry

Primary field (CPC C)

Patents· 25 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C07Cprimary

C07CAcyclic or carbocyclic compounds43%

C07DHeterocyclic compounds28%

C07BGeneral methods of organic chemistry17%

A01NPreservation of bodies of humans or animals or plants or parts thereof4%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium4%

Y02PClimate change mitigation technologies in the production or processing of goods4%

PatentTitleYear

5,698,742'Method for producing an optically active azolyl-.alpha., .beta.-unsaturated alcohol'1997 5,684,174'Method for purifying O, S-dimethyl N-acetylphosphoramidothioate'1997 5,616,769'Method for purifying O,S-dimethyl N-acetylphosphoramidothioate'1997 5,231,227'Optically active hydroxybenzylamine derivative and process for producing said compound'1993 5,200,561'Process for producing optically active amines'1993 5,145,998'Method for producing optically active amines'1992 5,144,071'Method for producing an optically active azolyl-.alpha.,.beta.-unsaturated alcohol'1992 5,120,853'Process for producing optically active compounds'1992 5,011,989'Optically active hydroxybenzylamine'1991 4,954,651'Process for preparing trans-2,2-dimethyl-3-(2,2-dihalovinyl)-cyclopropane carboxylic acid halide'1990 4,948,914'Process for preparing trans-2,2-dimethyl-3-(2,2-dihalovinyl)cyclopropane carboxylic acid esters'1990 4,908,455'Method for producing an optically active azolyl-.alpha. .beta.-unsaturated alcohol'1990 4,898,655'Method for racemization of optically active chrysanthemic acid or its derivatives'1990 4,820,864'Method for racemization of optically active chrysanthemic acid or its ester'1989 4,812,264'Method for racemization of optically active chrysanthemic acid derivatives'1989 4,788,323'Method for racemization of optically active chrysanthemic acid or its ester'1988 4,767,882'Tetrahydronaphthalene derivatives and their production'1988 4,616,092'.beta.-formyl-.beta.-hydroxy ester'1986 4,584,387'Acyl and ester derivatives of 1,3-diazabicyclo[3,3,0]octane'1986 4,487,956'Menthyl 2,2-dimethylcyclopropanecarboxylate and resolution of the same'1984 4,424,389'Synthesis of 6-hydroxychroman-2-methanol derivatives'1984 4,383,122'Process for preparing .alpha.-hydroxyaldehyde'1983 4,337,346'.alpha.-Hydroxyaldehyde and a process for preparing the same'1982 4,328,378'2,6-Dimethyl-6-heptene-1,2-diol'1982 4,276,217'Method for producing 1,5-dimethyl-6,8-dioxabicyclo[3.2.1]octane'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1997Patents assigned to SUMITOMO CHEMICAL CO (25)· patent assignee history

1981–1986Based in Ibaraki, JP· patent location history

1982–1986Based in Musashino, JP· patent location history

1984–1993Based in Takarazuka, JP· patent location history

1988–1989Based in Hyogo, JP· patent location history

1990–1997Based in Montreal, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SUMITOMO CHEMICAL CO	25	1981–1997

Locations

Location	Patents	Span
Montreal, CA	8	1990–1997
Takarazuka, JP	4	1984–1993
Ibaraki, JP	4	1981–1986
Hyogo, JP	3	1988–1989
Musashino, JP	3	1982–1986