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Inventor

Takayuki Tomizawa

Inventor
Tokyo, JP

Overview

5→
Patents
1983–1993
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.

C07Hprimary
C07HSugars20%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations15%
C12NMicroorganisms or enzymes15%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%
C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture10%
C12RIndexing scheme associated with subclasses c12c - c12q, relating to microorganisms10%
C07DHeterocyclic compounds5%
G01NInvestigating or analysing materials by determining their chemical or physical properties5%
G03CPhotosensitive materials for photographic purposes5%
PatentTitleYear
5,214,048'Oxetanocins'19934,904,585'Novel antibiotic NK84-0218 and process for the production of the same'19904,845,215'Purine derivative'19894,743,689'Antibiotic derivative of adenine'19884,416,813'Artificial carrier for immobilization of biological proteins'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to FUJIZOKI SEIYAKU KK (1)· patent assignee history
1983–1990Based in Tokyo, JP· patent location history
1988–1993Patents assigned to NIPPON KAYAKU KK (4)· patent assignee history
1989–1993Based in Machida, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
NIPPON KAYAKU KK41988–1993
FUJIZOKI SEIYAKU KK11983
Locations
LocationPatentsSpan
Tokyo, JP31983–1990
Machida, JP21989–1993