Optical recording method using land/groove recording

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United States of America Patent

PATENT NO 7151721
SERIAL NO

11176367

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Abstract

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An optical reproducing apparatus for reproducing information on a medium includes a light source, an optical system for irradiating a light beam generated by the light source on the medium, a detector for detecting a reflected light from the medium; and a reproducer means for reproducing information on the medium by using a signal from the detector. The medium is a substrate having grooves and lands alternately formed thereon in a radial direction, which serve as recording tracks and have prepits.

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Patent Owner(s)

  • HITACHI CONSUMER ELECTRONICS CO., LTD.;HITACHI MAXELL, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Minemura, Hiroyuki Kodaira, JP 246 2280
Miyamoto, Harukazu Kodaira, JP 251 2424
Sugiyama, Hisataka Kodaira, JP 104 1439

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