Inventor

Kouji Yoshikawa

Inventor

Toyonaka, JP

Overview

12→

Patents

1998–2014

Patent span

Chemistry

Primary field (CPC C)

Patents· 12 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds47%

C07BGeneral methods of organic chemistry12%

C07DHeterocyclic compounds12%

H01FMagnets12%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry6%

C01BNon-metallic elements6%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium6%

PatentTitleYear

8,680,328'Method for producing optically active cyclopropane carboxylic acid ester compound, asymmetric copper complex, and optically active salicylideneaminoalcohol compound'2014 8,461,370'Process for producing 3-(2-cyano-1-propenyl)-2,2- dimethylcyclopropanecarboxylic acid or salt thereof'2013 8,263,797'Method for producing cyclopropane carboxylic acid compound and intermediate therefor'2012 8,168,816'Method for producing purified formylcyclopropane compound and intermediate of such formylcyclopropane compound'2012 8,158,787'Process for producing trichloropyrimidine compound'2012 7,985,872'Method for producing olefin compound'2011 7,893,294'Process for production of trans-2, 2-dimethyl-3-formylcyclopropanecarboxylic acid ester'2011 7,700,799'Method for producing (2-formyl-1-alkenyl) cyclopropane compound'2010 7,262,320'Process for production of 3,3-dimethyl-2-formylcyclopropanecarboxylic acid derivatives'2007 7,179,439'Method for preparing disodium paraperiodate'2007 5,781,092'Ignition coil for an internal combustion engine'1998 5,764,124'Ignition coil for an internal combustion engine'1998

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1998Patents assigned to AISAN IND (2)· patent assignee history

1998Based in Obu, JP· patent location history

2007–2014Patents assigned to SUMITOMO CHEMICAL CO (10)· patent assignee history

2007–2014Based in Toyonaka, JP· patent location history

2012–2014Patents assigned to YOSHIKAWA KOUJI (5)· patent assignee history

2012–2013Patents assigned to KOMOTO ICHIRO (2)· patent assignee history

2012–2013Patents assigned to OHSHITA JUN (2)· patent assignee history

2012Based in Osaka, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SUMITOMO CHEMICAL CO	10	2007–2014
YOSHIKAWA KOUJIself	5	2012–2014
AISAN IND	2	1998
KOMOTO ICHIRO	2	2012–2013
OHSHITA JUN	2	2012–2013

Locations

Location	Patents	Span
Toyonaka, JP	9	2007–2014
Obu, JP	2	1998
Osaka, JP	1	2012