Inventor

Hirosada Sugihara

Inventor

Osaka, JP

Overview

31→

Patents

1976–1996

Patent span

Chemistry

Primary field (CPC C)

Patents· 31 as inventor

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

C07Dprimary

C07DHeterocyclic compounds37%

A61KPreparations for medical, dental or toiletry purposes22%

C07KPeptides15%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations13%

C07CAcyclic or carbocyclic compounds7%

Y02PClimate change mitigation technologies in the production or processing of goods3%

C07BGeneral methods of organic chemistry1%

PatentTitleYear

5,550,131'2-piperazinone compounds and their use'1996 5,294,713'2-piperazinone compounds and their use'1994 4,997,836'Trisubstituted piperazine compounds, their production and use'1991 4,954,625'Piperidine derivatives, their production and use'1990 4,937,246'PAF antagonist, 1,4-disubstituted piperazine compounds and production thereof'1990 4,880,809'1,4-disubstituted piperazines (or homopiperazines) as platelet-activating factor antagonists'1989 4,871,842'Piperidine derivatives'1989 4,816,466'Piperidine derivatives'1989 4,751,316'1,5-benzoxathiepin derivatives'1988 4,739,066'Intermediates for the preparation of condensed seven-membered ring compounds'1988 4,736,031'2-(piperazinylalkyl)-1-benzothiepin, 1-benzoxepin, and 1,5-benzodioxepin derivatives'1988 4,672,064'1,5-benzoxathiepin derivatives, their production and use'1987 4,638,000'Condensed seven-membered ring compounds, their production and use'1987 4,591,458'3-amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine derivatives'1986 4,564,612'Condensed, seven-membered ring compounds and their use'1986 4,558,068'Spirobenzofuranones and their use in treating peptic ulcers'1985 4,548,932'3-Amino-4-oxo-2,3,4,5-tetrahydro-1,5-benzoxazepine derivatives'1985 4,362,740'Spiro compounds, their production and use'1982 4,342,779'7-Acetylspirobenzofuranone compound'1982 4,330,554'Spirobenzofuranone compounds'1982 4,299,963'1-Azaxanthone derivatives'1981 4,284,644'Spirobenzofuranone compounds'1981 4,255,576'1-Azaxanthone derivatives'1981 4,143,042'1-Azaxanthone-3-carboxylic acids'1979 4,104,402'5,6-Dihydroxy aminotetralol compounds'1978 4,041,079'Bicyclic compounds'1977 4,035,512'Aminotetralols'1977 4,029,699'3,(2,4,5-Trisubstituted benzoyl)-propionic acid and the salts thereof'1977 4,017,517'2-(Trisubstituted benzoyl)-propionic acid and a method for the production thereof'1977 4,010,202'5,6-Dihydroxy aminotetralol compounds'1977 3,943,169'3-(Trisubstituted benzoyl)-propionic acid'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–1996Patents assigned to TAKEDA CHEMICAL INDUSTRIES LTD (31)· patent assignee history

1976Based in Suita, JP· patent location history

1977–1991Based in Osaka, JP· patent location history

1994Based in Mishima, JP· patent location history

1996Based in Tsukuba, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
TAKEDA CHEMICAL INDUSTRIES LTD	31	1976–1996

Locations

Location	Patents	Span
Osaka, JP	28	1977–1991
Tsukuba, JP	1	1996
Mishima, JP	1	1994
Suita, JP	1	1976