Granted Patent
Utility
US 6,788,178 · App. 10/464,389
Magnet roller and process for preparing the same
Inventors:
Shingo Inase, Masami Hosokawa, Osamu Oshima, Masaharu Iwai
Patented Case
View Patent ↗
Granted: Sep 7, 2004
Filed: Jun 18, 2003
Inventors
Shingo Inase
Masami Hosokawa
Osamu Oshima
Masaharu Iwai
Assignees (at issue)
KANEKA CORPORATION
TOCHIGI KANEKA 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.