Inventor

MIYAGAWA NAOYASU

JP54 patents

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

MIYAGAWA NAOYASU

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Optical recording/reproducing medium and apparatus using land and groove encoded information signals and identification signals including position information

Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses

Optical information recording/reproducing device and method for recording, reproducing and erasing information on an optical information recording medium utilizing light beam radiation

Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses

Optical information recording medium

Optical information recording method, device, and recording medium with plural recording layers

Optical information recording medium, optical information recording apparatus, and method of recording test signal on the same

Optical information recording/reproducing method and optical information recording/reproducing apparatus

Optical information recording medium, optical information recording apparatus, and method of recording test signal on the same

Optical information recording medium offset pre-pit array indicating identification information

Optical recording medium permitting detection of identification signals in land areas and groove areas, optical information recording/reproducing apparatus and apparatus for producing an original disk for forming a disk substrate

Optical disc apparatus with tracking error compensation

Optical pickup head wherein an error signal is produced by detecting a phase difference in diffraction beams from a holographic optical element

Optical information recording medium having convex and concave portions for recording information and an additional portion for condition data, and recording and reproducing apparatus for using the medium

Optical information recording medium, optical measuring method and optical information recording/reproducing method

Optical information recording medium and optical information recording and reproducing apparatus

Optical information recording medium and an optical information recording/reproduction device

Optical information recording medium

Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses

Optical information recording method, optical information recording device and optical information recording medium

Optical system with tracking controller

Optical information recording medium and optical information recording and reproducing apparatus

Optical information recording medium, optical information recording apparatus, and method of recording test signal on the same

Optical information recording medium, optical information recording apparatus, and method of recording test signal on the same

Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses

Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses

Optical information recording method and apparatus for multiple recording layer medium

Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses

Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses

Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses

Optical information recording medium and optical information recording and reproducing apparatus

Optical information recording medium and optical information recording and reproducing apparatus

Apparatus for recording information in information recording medium, information recording medium, method for recording information in information recording medium, program for recording information in information recording medium, and program product

PANASONIC CORP

Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses

Optical recording/reproducing apparatus for optical disks with various disk substrate thickness

Optical information recording medium, method for manufacturing the same, and initialization device

Optical information recording method, optical information recording device and optical information recording medium

Method of recording information, equipment thereof and information recording medium

Optical recording/reproducing apparatus for optical disks with various disk substrate thicknesses

Optical recording medium, method for manufacturing the same, recording/playback method, and recording/playback apparatus

Method for recording to and reproducing from an optical recording medium, optical recording medium, and recording and reproduction apparatus for the same

Optical information recording medium and optical information recording/reproducing system

Optical information recording method, optical information recording and reproducing device, and optical information recording medium

Reading device and reading method for an optical data recording medium

NAKAMURA ATSUSHI

Method and device for optical recording onto optical disc medium

Method and device for optical recording onto optical disc medium

Method and device for optical recording onto optical disc medium

Optical information recording medium, information recording apparatus, information reproducing apparatus, information recording method, information reproducing method and method for producing optical information recording medium

(unassigned)

Optical information recording media and optical information read/write device

LSI LOGIC CORP

High density analog recording using write symbols having distinguishable readout waveforms