Inventor

Isami Takahashi

Inventor

Tama, JP

Overview

12→

Patents

1989–2004

Patent span

Chemistry

Primary field (CPC C)

Patents· 12 as inventor

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

A61Pprimary

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations21%

C07DHeterocyclic compounds18%

C12PFermentation or enzyme-using processes to synthesise a desired chemical compound or composition or to separate optical isomers from a racemic mixture18%

C12NMicroorganisms or enzymes12%

C12RIndexing scheme associated with subclasses c12c - c12q, relating to microorganisms12%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%

C07HSugars6%

C07CAcyclic or carbocyclic compounds3%

C07JSteroids3%

PatentTitleYear

6,815,449'LK6-A derivatives'2004 6,613,774'Pyrrolo 4,3,2-de quinoline derivatives'2003 5,977,165'Radicicol derivatives'1999 5,843,955'Compound LK6-A'1998 5,236,929'Compound UCA1064-B'1993 5,140,044'UCN-1028D derivatives'1992 5,101,038'Novel substance DC 113 and production thereof'1992 4,999,196'Compound DC-107 produced by Streptomyces sp.'1991 4,992,570'UCN-1028A and UCN-1028C and process for the production thereof'1991 4,935,415'UCN-01 and process for production thereof'1990 4,923,990'Pyrindamycins A and B and duocarmycin A antibiotics derived from certain streptomyces culture'1990 4,847,387'Antibiotic compounds DC-92B and DC-92D'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–2004Patents assigned to KYOWA HAKKO KOGYO KK (12)· patent assignee history

1989–1991Based in Machida, JP· patent location history

1990–2003Based in Tokyo, JP· patent location history

1992–2004Based in Tama, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KYOWA HAKKO KOGYO KK	12	1989–2004

Locations

Location	Patents	Span
Tama, JP	4	1992–2004
Tokyo, JP	4	1990–2003
Machida, JP	4	1989–1991