Granted Patent
Utility
US 6,449,021 · App. 09/448,837
Information processing apparatus, information processing method, and distribution media
Inventors:
Masashi Ohta, Taro Suito, Katsunari Miyata
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Nov 23, 1999
Inventors
Masashi Ohta
Taro Suito
Katsunari Miyata
Assignee (at issue)
SONY GROUP 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.