Inventor

Toshikazu Kawai

Inventor

Kawagoe, JP

Overview

30→

Patents

1983–2007

Patent span

Chemistry

Primary field (CPC C)

Patents· 30 as inventor

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

C07Cprimary

C07CAcyclic or carbocyclic compounds59%

A61KPreparations for medical, dental or toiletry purposes10%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations10%

B01JChemical or physical processes, e.g. catalysis or colloid chemistry8%

A61BDiagnosis5%

A61MDevices for introducing media into, or onto, the body3%

G01NInvestigating or analysing materials by determining their chemical or physical properties3%

Y10TTechnical subjects covered by former us classification3%

PatentTitleYear

7,230,142'Process for purifying fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether'2007 7,083,616'Medical manipulator system and operating method thereof'2006 6,677,492'Fluoroether compositions and methods for inhibiting their degradation in the presence of a Lewis acid'2004 6,666,876'Forceps and manipulator with using thereof'2003 6,444,859'Fluoroether compositions and methods for inhibiting their degradation in the presence of a Lewis acid'2002 6,288,127'Fluoroether compositions and methods for inhibiting their degradation in the presence of a Lewis acid'2001 5,990,176'Fluoroether compositions and methods for inhibiting their degradation in the presence of a Lewis acid'1999 5,811,596'Method of producing fluoromethyl 1,1,1,3,3,3-hexafluoroisopropyl ether'1998 5,763,684'Method of purifying fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether'1998 5,684,210'Method of purifying fluoromethyl-1,1,1,3,3,3, hexafluoroisopropyl ether'1997 5,684,211'Method of purifying fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether'1997 5,679,576'Gas chromatographic analysis of fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether'1997 5,600,036'2-trifluoromethyl-4-chlorobenzalchloride and 2-methyl-3-nitro-5-chlorobenzotrifluoride useful as intermediates for preparing 2-methyl-3-aminobenzotrifluoride'1997 5,449,831'Process of preparing 2-methyl-3-aminobenzotrifluoride'1995 5,390,667'Absorption of carbon dioxide gas contained in exhalation of inhalation anesthetic subject'1995 5,017,730'Process of preparing bis (trifluoromethylphenyl) methanol'1991 4,968,852'Trifluoromethylbenzoyl bromide and conversion of same to bromobenzotrifluoride'1990 4,929,753'Preparation of trifluoromethylbenzoic acid from hexafluoroxylene'1990 4,876,404'Preparation of dichlorotrifluoromethyltoluenes including novel isomers'1989 4,876,382'Process for making fluorobenzoic acid fluorophenylesters'1989 4,849,557'Preparation of trifluoromethyltoluene from halomethylbenzotrifluoride'1989 4,845,279'Method of preparing 4-trifluoromethyl-2-nitrobenzoic acid and novel isomer'1989 4,808,746'Preparation of trifluoromethylbenzonitrile from trifluoromethylbenzaldehyde'1989 4,620,042'Preparation of 2-chloro-4-fluorophenol from 4-fluorophenol'1986 4,564,716'Preparation of 1,1,1,3,3,3-hexafluoropropane-2-ol by hydrogenolysis of hexafluoroacetone hydrate'1986 4,544,772'Method of purifying hexafluoroacetone hydrate'1985 4,540,835'Preparation of 2-trifluoromethylpropanol by vapor phase hydrogenation of 2-trifluoromethylpropanal'1985 4,523,041'Method of purifying 4-fluorophenol'1985 4,467,124'Preparation of 1,1,1,3,3,3-hexafluoropropane-2-ol by vapor phase catalytic reaction of hexafluoroacetone hydrate with hydrogen'1984 4,386,223'Method of purifying hexafluoroacetone containing chlorofluoroacetones'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2007Patents assigned to CENTRAL GLASS CO LTD (28)· patent assignee history

1983–1985Based in Kamifukuoka, JP· patent location history

1985Patents assigned to SAGAMI CHEM RES (1)· patent assignee history

1985–1997Based in Kawagoe, JP· patent location history

1991–2007Based in Saitama, JP· patent location history

1997–1999Based in Tsurugashima, JP· patent location history

1999–2004Patents assigned to ABBOTT LAB (4)· patent assignee history

2003–2006Patents assigned to HITACHI LTD (2)· patent assignee history

2006Based in Kashiwa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
CENTRAL GLASS CO LTD	28	1983–2007
ABBOTT LAB	4	1999–2004
HITACHI LTD	2	2003–2006
SAGAMI CHEM RES	1	1985

Locations

Location	Patents	Span
Kawagoe, JP	15	1985–1997
Saitama, JP	8	1991–2007
Kamifukuoka, JP	3	1983–1985
Tsurugashima, JP	2	1997–1999
Kashiwa, JP	1	2006