Granted Patent
Utility
US 6,677,950 · App. 08/996,151
Graphics computer
Inventors:
Mamoru Ohba, Mitsuru Watabe, Rika Minami, Koyo Katsura
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Dec 22, 1997
Inventors
Mamoru Ohba
Mitsuru Watabe
Rika Minami
Koyo Katsura
Assignee (at issue)
HITACHI, 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.