Granted Patent
Utility
US 6,486,741 · App. 09/970,734
Precise phase comparison even with fractional frequency division ratio
Inventor:
Yasuaki Sumi
Patented Case
View Patent ↗
Granted: Nov 26, 2002
Filed: Oct 4, 2001
Inventor
Yasuaki Sumi
Assignees (at issue)
SANYO ELECTRIC CO., LTD.
TOTTORI SANYO ELECTRIC 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.