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:
Jun. 07, 1994
Filed:
Mar. 30, 1993
Applicant:
Inventors:
Hiroyuki Yoshimura, Ibaraki, JP;
Shinya Abe, Ibaraki, JP;
Tetsuya Kawahara, Ibaraki, JP;
Naoyuki Shimomura, Ibaraki, JP;
Kazuo Okano, Ibaraki, JP;
Richard S Clark, Ibaraki, JP;
Takashi Mori, Ibaraki, JP;
Shuhei Miyazawa, Ibaraki, JP;
Ryoichi Hashida, Ibaraki, JP;
Kenzo Muramoto, Ibaraki, JP;
Koukichi Harada, Ibaraki, JP;
Takashi Inoue, Ibaraki, JP;
Hirsohi Shirota, Evanston, IL (US);
Kenichi Chiba, Ibaraki, JP;
Kenichi Kusube, Ibaraki, JP;
Toru Horie, Ibaraki, JP;
Takeshi Suzuki, Ibaraki, JP;
Isao Yamatsu, Ibaraki, JP;
Assignee:
Eisai Co. Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
564173 ; 564163 ; 564169 ; 560139 ; 562444 ; 562450 ; 558417 ;
Abstract
Compounds of the formula: ##STR1## where R.sup.1 is a hydrogen atom or a lower alkyl group;