Inventor

Tadashi Wakazawa

Inventor

Yokohama, JP

Overview

6→

Patents

1982–1987

Patent span

Chemistry

Primary field (CPC C)

Patents· 6 as inventor

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

C07Dprimary

C07DHeterocyclic compounds50%

Y02PClimate change mitigation technologies in the production or processing of goods20%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations10%

C07FAcyclic, carbocyclic or heterocyclic compounds containing elements other than carbon, hydrogen, halogen, oxygen, nitrogen, sulfur, selenium or tellurium10%

C07HSugars10%

PatentTitleYear

4,645,769'1-oxa-1-dethia-cephalosporin compounds and antibacterial agent comprising the same'1987 4,556,513'Process for the production of antibiotic 1-oxadethiacephalosporins, and intermediate'1985 4,534,898'1-Oxa-1-dethia-cephalosporin derivatives'1985 4,497,811'1-Oxadethiacephalosporin compound and antibacterial agent containing the _same'1985 4,472,576'Processes for the production of antibiotic 1-oxadethiacephalosporins'1984 4,337,336'Derivative of kanamycin A and a process for the preparation thereof'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982Patents assigned to MICROBIAL CHEM RES FOUND (1)· patent assignee history

1982–1987Based in Yokohama, JP· patent location history

1984–1987Patents assigned to MERCK & CO INC (3)· patent assignee history

1985Patents assigned to FUTKATSU SHUNZO (1)· patent assignee history

1985Patents assigned to MEIJI SEIKA KAISHA (1)· patent assignee history

1985Patents assigned to MURAI YASUSHI (1)· patent assignee history

1985Based in Kanagawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MERCK & CO INC	3	1984–1987
FUTKATSU SHUNZO	1	1985
MEIJI SEIKA KAISHA	1	1985
MICROBIAL CHEM RES FOUND	1	1982
MURAI YASUSHI	1	1985

Locations

Location	Patents	Span
Yokohama, JP	5	1982–1987
Kanagawa, JP	1	1985