Granted Patent
Utility
US 6,719,887 · App. 10/221,990
Biosensor
Inventors:
Miwa Hasegawa, Motokazu Watanabe, Tomohiro Yamamoto, Shin Ikeda, Shiro Nankai
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Sep 17, 2002
Inventors
Miwa Hasegawa
Motokazu Watanabe
Tomohiro Yamamoto
Shin Ikeda
Shiro Nankai
Assignee (at issue)
SUMITOMO ELECTRIC INDUSTRIES, 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.