Granted Patent
Utility
US 6,730,407 · App. 09/924,737
Soluble lubricating surface-treated stainless steel sheet with excellent shapability for fuel tank and method for manufacturing fuel tank
Inventors:
Yoichiro Mori, Akihiro Miyasaka, Hiroshi Kanai, Ikuro Yamaoka, Tsutomu Tawa, Chikako Kouda, Mitsuhiro Nishimura
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Aug 8, 2001
Inventors
Yoichiro Mori
Akihiro Miyasaka
Hiroshi Kanai
Ikuro Yamaoka
Tsutomu Tawa
Chikako Kouda
Mitsuhiro Nishimura
Assignees (at issue)
NIPPON STEEL CORPORATION
Mitsui Takeda Chemicals, 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.