Inventor

OHARA SHUNJI

JP68 patents

⚠️ This page may combine multiple inventors who share the name “OHARA SHUNJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

OHARA SHUNJI

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Optical disk having read-only and rewritable areas with overlapping formats

Optical disk, optical disk recording and reproducing apparatus, method for recording, reproducing and deleting data on optical disk, and information processing system

Optical disc with a rewritable area and a read-only area

Optical disk having a rewritable area and a read-only area

Two-layer optical disk

Method for substituting defective recording of discoid recording medium and discoid recording medium recording and reproducing device

Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium

Optical disk and a recording/reproduction apparatus using multiple address block groups shifted oppositely with multiple address blocks and non-pit data

Optical disk compatible with read-only disk and having read-only and rewritable areas with overlapping formats

Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium

Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium

Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium

Two-layer optical disk

Optical disk and optical disk apparatus having a predetermined pattern of marks on tracks such that a reproduced signal is caused to jitter

Optical disk and an optical disk recording/reproduction device having address blocks located on boundary lines between adjoining tracks

Optical disk and an optical disk recording reproduction device

Optical disk apparatus operative with optimal recording power setting

Optical pickup head with holographic servo signal detection using a spot size detection system

Optical disc record/playback apparatus

Information recording method, information recording/reproducing apparatus, and information recording medium

Optical disk having read-only and rewritable areas

Recording defect substitution method for a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium

Optical disc with a rewritable area and a read-only area

Optical disk having read-only and rewritable areas with overlapping formats

Recording defect substitution method of a disc-shaped recording medium, and a recording and reproducing apparatus for a disc-shaped recording medium

Optical disk having an index mark

Optical head

Optical and reversible recording and reproducing apparatus

Optical data recording and reproducing apparatus

Method and apparatus for optically recording and reproducing information

Optical having index mark and sector mark

Semiconductor laser driving system

Optical disc having oscillating lands and grooves

Optical disk and recording/reproducing apparatus using multiple address block groups shifted oppositely with multiple address blocks

Optical disc having oscillating land and grooves

Optical disk and optical disk reproduction apparatus

Optical information recording medium, and audio and video information recording method

Optical disc reproducing apparatus having an automatic gain control circuit

Optical recording and playback apparatus using plural light spots

Multilayer optical disk, and method and device for recording optical information thereon

Information recording/reproducing apparatus and a method of recording information onto an information recording/reproducing media having a plurality of storage medium types and recording modes

Optical disk apparatus and method for setting control parameters

Method and apparatus for recording/reproducing information with respect to optical recording medium

Information recording method, information recording/reproducing apparatus, and information recording medium

Information recording method, information recording/reproducing apparatus, and information recording medium

Information recording method, information recording/reproducing apparatus, and information recording medium

Optical disc having oscillating lands and grooves

MITSUBISHI ELECTRIC CORP

Optical disc and optical disc driving apparatus

Optical disc

PANASONIC CORP

Authentication server, method and system for detecting unauthorized terminal