Granted Patent
Utility
US 5,561,566 · App. 08/356,427
Information recording disk and drive system using no sector ID to increase data storage capacity
Inventors:
Yuji Kigami, Koji Kurachi, Takao Matsui, Takashi Nakamura, Tsutomu Numata, Kenji Ogasawara, Mayumi Okada, Yuji Yokoe
Patented Case
View Patent ↗
Granted: Oct 1, 1996
Filed: Dec 15, 1994
Inventors
Yuji Kigami
Koji Kurachi
Takao Matsui
Takashi Nakamura
Tsutomu Numata
Kenji Ogasawara
Mayumi Okada
Yuji Yokoe
Assignee (at issue)
International Business Machines 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.