Granted Patent
Utility
US 5,751,491 · App. 08/677,277
Method of adjusting beam axis of optical pick-up
Inventors:
Toshiyuki Kase, Hiroshi Nishikawa
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: Jul 9, 1996
Inventors
Toshiyuki Kase
Hiroshi Nishikawa
Assignee (at issue)
Asahi Kogaku Kogyo Kabushiki Kaisha
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.