Granted Patent
Utility
US 6,235,355 · App. 09/101,999
Dioxane derivatives, liquid-crystal compositions containing the same, and liquid-crystal display devices made by using the same
Inventors:
Yasuhiro Haseba, Tomoyuki Kondou, Shuichi Matsui, Kazutoshi Miyazawa, Hiroyuki Takeuchi, Yasusuke Hisatsune, Fusayuki Takeshita, Etsuo Nakagawa
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Jul 21, 1998
Inventors
Yasuhiro Haseba
Tomoyuki Kondou
Shuichi Matsui
Kazutoshi Miyazawa
Hiroyuki Takeuchi
Yasusuke Hisatsune
Fusayuki Takeshita
Etsuo Nakagawa
Assignee (at issue)
Chisso Corporation
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.