Granted Patent
Utility
US 5,262,565 · App. 07/790,541
Naphthalene derivatives
Inventors:
Hiroyuki Yoshimura, Shinya Abe, Tetsuya Kawahara, Takashi Inoue, Hiroshi Shirota, Kenichi Chiba, Kenichi Kusube, Toru Horie, Takeshi Suzuki, Isao Yamatsu, Naoyuki Shimomura, Kazuo Okano, Richard Clark, Takashi Mori, Shuhei Miyazawa, Ryoichi Hashida, Kenzo Muramoto, Koukichi Harada
Patented Case
View Patent ↗
Granted: Nov 16, 1993
Filed: Nov 12, 1991
Inventors
Hiroyuki Yoshimura
Shinya Abe
Tetsuya Kawahara
Takashi Inoue
Hiroshi Shirota
Kenichi Chiba
Kenichi Kusube
Toru Horie
Takeshi Suzuki
Isao Yamatsu
Naoyuki Shimomura
Kazuo Okano
Richard Clark
Takashi Mori
Shuhei Miyazawa
Ryoichi Hashida
Kenzo Muramoto
Koukichi Harada
Assignee (at issue)
Eisai Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.