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:
Mar. 29, 1994
Filed:
Oct. 10, 1991
Applicant:
Inventors:
Makoto Okita, Tsuchiura, JP;
Hiroshi Shirota, Tsukuba, JP;
Masayuki Tanaka, Ushiku, JP;
Toshihiko Kaneko, Ushiku, JP;
Katsuya Tagami, Ibaraki, JP;
Shigeki Hibi, Tsukuba, JP;
Yasushi Okamoto, Tsukuba, JP;
Seiichiro Nomoto, Ushiku, JP;
Takeshi Suzuki, Ushiku, JP;
Kenichi Chiba, Tsuchiura, JP;
Masaki Goto, Tsukuba, JP;
Ryoichi Hashida, Tsukuba, JP;
Hideki Ono, Tsukuba, JP;
Hideto Ohhara, Tsukuba, JP;
Hideki Sakurai, Tsukuba, JP;
Shigeru Souda, Ushiku, JP;
Yoshimasa Machida, Tsukuba, JP;
Kouichi Katayama, Tsukuba, JP;
Isao Yamatsu, Ushiku, JP;
Assignee:
Eisai Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560 56 ; 562466 ; 564174 ; 546226 ; 544389 ; 544172 ;
Abstract
A naphthalene derivative having the formula is new and useful for medicine. ##STR1## wherein R.sup.1 represents a hydrogen atom, a lower alkyl group or an acyl group;