Inventor

SUGITA RYUJI

JP43 patents

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

SUGITA RYUJI

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Master information carrier, process for producing the carrier, and method and apparatus for recording master information signal on magnetic recording medium by using the carrier

Vertical magnetic recording medium

Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier

Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier

Magnetic recording and reproduction apparatus ring-type magnetic head for recording signals to recording medium having oblique axis of easy magnetization

Method of fabricating a thin-film magnetic recording medium and thin-film magnetic recording medium

Perpendicular magnetic playback head and a perpendicular magnetic recording and reproducing device

Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier

Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier

Magnetic recording media

Magnetic recording and reproducing apparatus

Magnetic recording and reproducing apparatus having ring-type magnetic head with metallic soft magnetic films of differing thicknesses

Magnetic recording media fabrication method

Continuous fabrication of thin film magnetic recording medium with vacuum deposition

Magnetic recording medium

Magnetic recording medium having a ferromagnetic thin film in which 70% to 90% of the total magnetic particles have residual magnetization vectors within ±10° of the easy axis direction

Magnetic recording medium and method for producing the same

Method and apparatus for producing magnetic recording medium

Magnetic recording medium and method for producing the same

Method of producing thin film

Method of manufacturing magnetic recording medium

Magnetic recording medium with vacuum deposited magnetic layer

Master information carrier, method for producing the carrier, method and apparatus for writing information into magnetic record medium using the carrier

Master information carrier, method for producing the carrier, and method apparatus for writing information into magnetic record medium using the carrier

Magnetic recording medium and method for making the same

Method of producing a magnetic recording medium

Magnetic recording media, magnetic recording media fabrication method, and fabrication equipment

Magnetic recording medium and method for producing the same

Manufacturing method of magnetic recording medium

Method for producing magnetic recording medium

Magnetic recording medium and method for producing the same

Production of magnetic recording medium

Method for making a magnetic recording medium

Method for manufacturing perpendicular magnetic recording medium

Method for providing a perpendicular recording medium for use with a ring-shaped recording and reproducing head

Method for manufacturing magnetic recording medium

Magnetic recording medium comprising specific backcoat layer

FUJIFILM CORP

Amplitude servo pattern, magnetic recording medium and the manufacturing method, patterned magnetic transfer master substrate used in the manufacturing method, and magnetic recording/reproducing apparatus

Magnetic transfer master carrier, magnetic transfer method, and magnetic recording medium

Magnetic transfer master carrier and magnetic transfer method

FUJI PHOTO FILM CO LTD

Master carrier for magnetic transfer and method for transfer

Master information carrier for magnetic transfer

JOHNSON CONTROLS TECH CO

Locking device for seat back