Inventor

MIYAMOTO HARUKAZU

JP229 patents

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

MIYAMOTO HARUKAZU

HITACHI LTD

Optical disk and optical recording apparatus for said disk

Optical reproducing method

Information recording medium which indicates information according to the wobbling of a track and information recording and reproducing apparatus

Information recording medium and method and apparatus for recording and reproducing information using the same

Magnetic head, magnetic recording method and apparatus for controlling magnetic head with spin torque oscillator in a disk drive

Optical method and device for irradiating domains at predetermined positions

Three-dimensional recording and reproducing apparatus

Optical reproduction apparatus for reproducing information from optical recording medium having wobbled address pits

Optical reproduction apparatus

Information recording medium with tracks having a groove structure having a fixed cycle of wobble

Information recording method and apparatus

Method and apparatus for recording and reproducing information using pseudo identification signal

Optical recording medium with address information prepit for the same track at opposite boundaries of the same track

Optical disk having wobbled information shared between tracks

Three-dimensional recording and reproducing apparatus

Optical disk

Information recording medium and method and apparatus for recording and reproducing information using the same

Information recording medium having wobbled groves

Information recording medium having wobbled groove structure and plural zones

Information recording medium with expanded information recording capability

Optical recording/reproducing apparatus

Optical recording medium using land/groove recording

Optical recording medium having at least wobbled synchronous information shared between tracks

Information recording medium with clock information therein

Optical recording medium using land/groove recording

Optical recording medium having a dummy area at leading and/or trailing positions of recording area

Three-dimensional recording and reproducing apparatus

Method of magnetically recording and reading data, magnetic recording medium, its production method and magnetic recording apparatus

Optical disk

Information recording media, a method for recording/reproducing information, an apparatus for recording/reproducing information

Recording medium, information recording and reproducing method, and recording and reproducing apparatus

Information recording and reproducing method

Method of optical reproduction using pulsed light

Laser control for setting average recording power of &#34;1&#34; equal to average recording power of &#34;0&#34;

Magneto-optical recording and reproducing method, magneto-optical memory apparatus and magneto-optical recording medium therefor

Information recording medium having pair of electrodes

Optical disk having a plurality of information recording units

High-density information recording/reproducing method

High-density information recording/reproducing method

Optical disk device having optical phase compensator

Optical recording medium having unrecordable restricted block(s), and systems incorporating same

Optical recording medium having particular arrangement of prepits and manufacturing method thereof

Optical information detecting method, optical head, and optical disc apparatus utilizing plural photodetectors

Information reproduction apparatus and information reproduction method

Optical disk apparatus and data randomizing method using for optical disk apparatus

Information reproducing method and information reproducing apparatus of multilayer optical disk

Magneto-optical recording medium

HGST Netherlands BV

Heat-assisted magnetic recording (HAMR) write head with recessed near-field transducer and optically transparent protective film

Thermally-assisted magnetic recording head that suppresses effects of mode hopping

INPHASE TECH INC

Monocular holographic data storage system architecture

Laser control for setting average recording power of "1" equal to average recording power of "0"