Granted Patent
Utility
US 6,514,307 · App. 09/934,428
Iron-based sintered powder metal body, manufacturing method thereof and manufacturing method of iron-based sintered component with high strength and high density
Inventors:
Naomichi Nakamura, Satoshi Uenosono, Shigeru Unami, Masashi Fujinaga, Takashi Yoshimura, Mitsumasa Iijima, Shin Koizumi, Hiroyuki Anma, Yasuo Hatai
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Aug 21, 2001
Inventors
Naomichi Nakamura
Satoshi Uenosono
Shigeru Unami
Masashi Fujinaga
Takashi Yoshimura
Mitsumasa Iijima
Shin Koizumi
Hiroyuki Anma
Yasuo Hatai
Assignees (at issue)
Kawasaki Steel Corporation
Unisia Jecs 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.