Granted Patent
Utility
US 5,381,275 · App. 08/102,841
Apparatus and method for recording digital data with a controlled data compression ratio
Inventors:
Hajime Nitta, Masatoshi Takashima, Takehiko Saito, Tomihiro Nakagawa, Keitaro Yamashita
Patented Case
View Patent ↗
Granted: Jan 10, 1995
Filed: Aug 6, 1993
Inventors
Hajime Nitta
Masatoshi Takashima
Takehiko Saito
Tomihiro Nakagawa
Keitaro Yamashita
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.