The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 25, 1989
Filed:
Jun. 29, 1987
Applicant:
Inventors:
Yozo Todo, Toyama, JP;
Tetsuo Yamafuji, Toyama, JP;
Katsuyuki Nagumo, Kawasaki, JP;
Isao Kitayama, Toyama, JP;
Hideyoshi Nagaki, Toyama, JP;
Mikako Miyajima, Toyama, JP;
Yoshinori Konishi, Takaoka, JP;
Hirokazu Narita, Toyama, JP;
Shuntaro Takano, Toyama, JP;
Isamu Saikawa, Toyama, JP;
Assignee:
Toyama Chemical Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D / ; C07D / ; C07D / ;
U.S. Cl.
CPC ...
546 25 ; 546281 ; 546297 ; 546312 ; 544360 ;
Abstract
This invention relates to a process for industrially producing a 1-substituted aryl-1,4-dihydro-4-oxonaphthyridine derivative and a salt thereof which are useful as an antibacterial agent, and also to intermediates therefor and processes for producing the intermediates.