Granted Patent
Utility
US 6,449,409 · App. 09/035,480
End-face lapping apparatus and method of lapping
Inventors:
Kouji Minami, Hiroyuki Tokita, Nobuo Suzuki, Muneo Kawasaki
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Mar 5, 1998
Inventors
Kouji Minami
Hiroyuki Tokita
Nobuo Suzuki
Muneo Kawasaki
Assignee (at issue)
SEIKO INSTRUMENTS 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.