Inventor

Isao Sugiyama

Inventor

Ibaraki, JP

Overview

24→

Patents

1982–2002

Patent span

Chemistry

Primary field (CPC C)

Patents· 24 as inventor

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

C07Dprimary

C07DHeterocyclic compounds56%

Y02PClimate change mitigation technologies in the production or processing of goods23%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations19%

C07CAcyclic or carbocyclic compounds2%

PatentTitleYear

6,372,914'Intermediates useful for the manufacture of carbapenem and a stereoselective manufacturing method therefor'2002 6,218,550'Intermediates useful for the manufacture of carbapenem and a stereoselective manufacturing method therefor'2001 6,037,341'Carbapenem derivatives'2000 5,741,902'7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation'1998 5,604,217'7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation'1997 5,587,473'7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparation'1996 5,563,265'7-acyl-3-(substituted carbamoyloxy) cephem compounds'1996 5,559,225'7-acyl-3-(substituted carbamoyloxy) cephem compound'1996 5,373,000'7Beta-(thiadiazolyl)-2-iminoacetamido-3cephem compounds'1994 5,151,417'3-substituted vinyl cephalosporin derivatives'1992 5,128,465'Process for the preparation of cephem derivatives and intermediates therefor'1992 5,089,491'3-propenylcephem derivative'1992 5,010,188'Cephem derivatives'1991 5,008,260'Cephem derivatives'1991 5,006,649'3-propenylcephem derivative'1991 4,929,612'Thiadiazolylacetamide cephem derivatives'1990 4,921,850'3-propenylcephem derivative'1990 4,748,171'Cephem compounds having at the 3-position a (1,4-methylene-1-piperidinio)methyl group or a (1-quinuclidinio)methyl group'1988 4,721,788'4-cyanopiperidine derivatives'1988 4,698,336'3-(pyrrolidinio)methyl-3-cephem derivatives'1987 4,468,394'Cephalosporin compounds'1984 4,352,801'Cephem derivatives and antibacterial agents comprising said compounds'1982 4,331,606'N-(Substituted chromone-3-carbonyl)-phenylglycine derivatives'1982 4,309,354'Chromone derivatives'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982–2002Patents assigned to EISAI CO LTD (24)· patent assignee history

1982–1984Based in Tokyo, JP· patent location history

1987–2002Based in Ibaraki, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EISAI CO LTD	24	1982–2002

Locations

Location	Patents	Span
Ibaraki, JP	20	1987–2002
Tokyo, JP	4	1982–1984