Granted Patent
Utility
US 6,560,233 · App. 09/266,635
Data processing apparatus and network relaying apparatus
Inventors:
Satoshi Hatanaka, Nobuhito Matsuyama, Kazuo Sugai, Yukisada Yamakawa
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: Mar 11, 1999
Inventors
Satoshi Hatanaka
Nobuhito Matsuyama
Kazuo Sugai
Yukisada Yamakawa
Assignees (at issue)
HITACHI, LTD.
Hitachi Information Technology 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.