Granted Patent
Utility
US 6,614,208 · App. 09/805,936
Soft switching DC-to-DC converter and controlling method thereof
Inventor:
Yuki Narita
Patented Case
View Patent ↗
Granted: Sep 2, 2003
Filed: Mar 15, 2001
Inventor
Yuki Narita
Assignee (at issue)
Kawasaki Microelectronics, 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.