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Inventor

Atsushi Tamura

Inventor
Yokohama, JP

Overview

10→
Patents
1995–1999
Patent span
Chemistry
Primary field (CPC C)

Patents· 10 as inventor

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

C07Dprimary
C07DHeterocyclic compounds40%
Y02PClimate change mitigation technologies in the production or processing of goods25%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations20%
C07HSugars10%
A61KPreparations for medical, dental or toiletry purposes5%
PatentTitleYear
5,990,101'Carbapenem derivatives'19995,883,089'Cephem derivatives'19995,827,845'Cephalosporin derivative'19985,663,162'Cephem derivatives'19975,661,144'Cephem derivatives with 3-substituted bis heterocycles'19975,618,795'Dibekacin derivatives and arbekacin derivatives active against resistant bacteria, and the production thereof'19975,607,927'Cephalosporin derivative'19975,488,038'Dibekacin derivatives and arbekacin derivatives active against resistant bacteria'19965,464,829'Cephalosporin derivatives'19955,461,044'Cephalosporin derivatives'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–1998Patents assigned to MEIJI SEIKA KAISHA (4)· patent assignee history
1995–1999Based in Yokohama, JP· patent location history
1995–1999Based in Kanagawa, JP· patent location history
1996–1997Patents assigned to ZAIDAN HOJIN BISEIBUTSU (2)· patent assignee history
1997–1999Patents assigned to MEIJI SEIKA CO (4)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MEIJI SEIKA CO41997–1999
MEIJI SEIKA KAISHA41995–1998
ZAIDAN HOJIN BISEIBUTSU21996–1997
Locations
LocationPatentsSpan
Yokohama, JP61995–1999
Kanagawa, JP41995–1999