Inventor

Sachiyuki Hamano

Inventor

Tokyo, JP

Overview

1977–1997

Patent span

Chemistry

Primary field (CPC C)

Patents· 15 as inventor

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

C07Dprimary

C07DHeterocyclic compounds38%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations29%

C07CAcyclic or carbocyclic compounds24%

A61KPreparations for medical, dental or toiletry purposes9%

PatentTitleYear

5,663,414'Benzenesulfonamide derivatives'1997 5,530,118'Benzenesulfonamide derivatives'1996 5,506,238'Biphenylmethane derivative and pharmacological use'1996 5,328,911'Biphenylmethane derivative and pharmacological use'1994 5,298,518'Biphenylmethane derivative and pharmacological use'1994 5,292,521'Solid oral preparation containing a pyrrolidine derivative with a catechol group'1994 5,281,626'Benzenesulfonamide derivatives'1994 4,599,414'Theophylline derivatives'1986 4,493,837'Theobromine derivatives'1985 4,421,763'Cyclohexane derivatives, process for preparation thereof and medicines containing these cyclohexane derivatives'1983 4,350,705'Cyclohexane derivatives, process for preparation thereof and medicines containing these cyclohexane derivatives'1982 4,180,577'Furo[2, 3d]pyrimidine derivatives and anti-ulcer containing the same'1979 4,064,169'Bis-(meta-amidinophenoxy)-compounds and pharmacologically acceptable acid addition salts thereof'1977 4,038,278'4-Aminopyrimidium derivatives and preparation thereof'1977 4,034,010'Bis-(meta-amidinophenoxy)-compounds and pharmacologically acceptable acid addition salts thereof'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1997Patents assigned to EISAI CO LTD (15)· patent assignee history

1977–1996Based in Tokyo, JP· patent location history

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

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EISAI CO LTD	15	1977–1997

Locations

Location	Patents	Span
Tokyo, JP	11	1977–1996
Kanagawa, JP	4	1994–1997