Granted Patent
Utility
US 6,146,320 · App. 09/362,105
Conductive roll
Inventors:
Hitoshi Yoshikawa, Shoji Arimura, Kunio Ito, Sumio Oinuma, Akihiko Kaji, Kenichi Ohkuwa, Kazuhiro Takeda, Satoshi Suzuki
Patented Case
View Patent ↗
Granted: Nov 14, 2000
Filed: Jul 28, 1999
Inventors
Hitoshi Yoshikawa
Shoji Arimura
Kunio Ito
Sumio Oinuma
Akihiko Kaji
Kenichi Ohkuwa
Kazuhiro Takeda
Satoshi Suzuki
Assignee (at issue)
TOKAI RUBBER 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.