Granted Patent
Utility
US 6,809,316 · App. 10/221,844
Electrospray ionization mass analysis apparatus and system thereof
Inventor:
Yoshiaki Kato
Patented Case
View Patent ↗
Granted: Oct 26, 2004
Filed: Feb 11, 2003
Inventor
Yoshiaki Kato
Assignee (at issue)
Hitachi High-Technologies Corporation
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.