Granted Patent
Utility
US 6,587,602 · App. 10/099,951
Resolution conversion system and method
Inventors:
Shinji Wakisawa, Naruhiko Kasai, Hiroko Sato, Youichi Watanabe, Hiroyuki Koizumi
Patented Case
View Patent ↗
Granted: Jul 1, 2003
Filed: Mar 19, 2002
Inventors
Shinji Wakisawa
Naruhiko Kasai
Hiroko Sato
Youichi Watanabe
Hiroyuki Koizumi
Assignees (at issue)
HITACHI, LTD.
Hitachi Device Engineering 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.