Granted Patent
Utility
US 6,052,178 · App. 09/015,929
Method for aligning optical elements one another on V-groove substrate
Inventor:
Yoshimasa Hirano
Patented Case
View Patent ↗
Granted: Apr 18, 2000
Filed: Jan 30, 1998
Inventor
Yoshimasa Hirano
Assignee (at issue)
OKI ELECTRIC INDUSTRY CO., LTD.
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.