Inventor

Yoshiharu Daiku

Inventor

Ibaraki, JP

Overview

1984–1997

Patent span

Chemistry

Primary field (CPC C)

Patents· 14 as inventor

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

C07Dprimary

C07DHeterocyclic compounds54%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations35%

C07CAcyclic or carbocyclic compounds12%

PatentTitleYear

5,663,414'Benzenesulfonamide derivatives'1997 5,606,073'Diazole-propenoic acid compounds'1997 5,541,213'Propenoic acid derivatives diazole propenoic acid compounds which have useful pharmaceutical utility'1996 5,530,118'Benzenesulfonamide derivatives'1996 5,281,626'Benzenesulfonamide derivatives'1994 5,246,946'Piperidine derivatives and therapeutic and preventive agents for arrhythmia containing same'1993 5,179,095'Piperidine derivative and pharmaceutical composition containing the same'1993 5,162,347'Piperidine derivatives and therapeutic and preventive agents for arrhythmia containing same'1992 5,118,689'Piperidine derivative and pharmaceutical composition containing the same'1992 5,082,850'Piperidine derivatives and therapeutic and preventive agents for arrhythmia containing same'1992 4,996,215'Piperidine derivative and pharmaceutical composition containing the same'1991 4,876,262'Piperidine derivative and pharmaceutical composition containing the same'1989 4,564,617'Theophylline and theobromine derivatives'1986 4,426,383'Theophylline and theobromine derivatives'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–1997Patents assigned to EISAI CO LTD (14)· patent assignee history

1984–1986Based in Tokyo, JP· patent location history

1991–1993Based in Sakuramura, JP· patent location history

1992–1993Based in Tsukuba, JP· patent location history

1994–1997Based in Ibaraki, JP· patent location history

1996–1997Based in Tsuchiura, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EISAI CO LTD	14	1984–1997

Locations

Location	Patents	Span
Ibaraki, JP	3	1994–1997
Tsukuba, JP	3	1992–1993
Sakuramura, JP	3	1991–1993
Tsuchiura, JP	2	1996–1997
Tokyo, JP	2	1984–1986