Granted Patent
Utility
US 6,712,914 · App. 10/459,476
Non-heat treated crankshaft
Inventors:
Daisuke Suzuki, Hitoshi Matsumoto, Yuzuru Tahara, Shingo Shimizu, Toru Taniguchi, Yoshikazu Yamada
Patented Case
View Patent ↗
Granted: Mar 30, 2004
Filed: Jun 12, 2003
Inventors
Daisuke Suzuki
Hitoshi Matsumoto
Yuzuru Tahara
Shingo Shimizu
Toru Taniguchi
Yoshikazu Yamada
Assignees (at issue)
SUMITOMO METAL INDUSTRIES, LTD.
HONDA MOTOR 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.