Inventor

Osamu Takahashi

Inventor

Chiba, JP

Overview

12→

Patents

1991–2014

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.

C07Dprimary

C07DHeterocyclic compounds35%

C07CAcyclic or carbocyclic compounds19%

A01NPreservation of bodies of humans or animals or plants or parts thereof15%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations15%

A61KPreparations for medical, dental or toiletry purposes8%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

PatentTitleYear

8,796,320'1,3,4-Oxadiazole-2-carboxamide compound'2014 8,466,290'STAT3 inhibitor containing quinolinecarboxamide derivative as active ingredient'2013 5,965,774'Substituted anilide derivative'1999 5,914,344'Substituted carboxanilide derivative and plant disease control agent comprising same as active ingredient'1999 5,877,318'Hydroquinone derivative and pharmaceutical use thereof'1999 5,869,427'Substituted thiophene derivative and plant disease control agent comprising the same as active ingredient'1999 5,821,247'Hydroquinone derivative and pharmaceutical use thereof'1998 5,747,518'Substituted thiophene derivative and agricultural and horticultural fungicide containing the same as active ingredient'1998 5,644,028'Process for producing peptide derivatives and salts therefor'1997 5,587,303'Production process of L-amino acids with bacteria'1996 5,126,482'Process for producing fluorine-containing carboxylic acids'1992 5,041,641'Pentafluorophenyl derivatives, methods of production thereof, and method of optical resolution of chiral carboxylic acids'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1991–1996Based in Toda, JP· patent location history

1992–1999Based in Saitama, JP· patent location history

1996–1999Patents assigned to JAPAN ENERGY CORP (4)· patent assignee history

1997–2013Based in Tokyo, JP· patent location history

1998–1999Based in Chiba, JP· patent location history

1999Patents assigned to MITSUI CHEMICALS INC (3)· patent assignee history

2013–2014Patents assigned to AKIYAMA YASUTO (2)· patent assignee history

2013–2014Patents assigned to ASAI AKIRA (2)· patent assignee history

2013–2014Patents assigned to ASHIZAWA TADASHI (2)· patent assignee history

2014Based in Chuo-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
JAPAN ENERGY CORP	4	1996–1999
MITSUI CHEMICALS INC	3	1999
AKIYAMA YASUTO	2	2013–2014
ASAI AKIRA	2	2013–2014
ASHIZAWA TADASHI	2	2013–2014

Locations

Location	Patents	Span
Chiba, JP	4	1998–1999
Saitama, JP	3	1992–1999
Tokyo, JP	2	1997–2013
Toda, JP	2	1991–1996
Chuo-ku, JP	1	2014