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Inventor

Yukio Narita

Inventor
Yokohama, JP

Overview

5→
Patents
1983–1987
Patent span
Chemistry
Primary field (CPC C)

Patents· 5 as inventor

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

C07Dprimary
C07DHeterocyclic compounds42%
Y02PClimate change mitigation technologies in the production or processing of goods33%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations25%
PatentTitleYear
4,659,812'Cephalosporin intermediates'19874,525,473'Cephalosporins'19854,500,526'Cephalosporin derivatives'19854,486,586'Cephalosporin derivatives'19844,406,899'Cephalosporins'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–1987Patents assigned to BRISTOL MYERS CO (5)· patent assignee history
1983–1987Based in Yokohama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BRISTOL MYERS CO51983–1987
Locations
LocationPatentsSpan
Yokohama, JP51983–1987