Inventor

YAMAMOTO MASAKUNI

JP49 patents

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

YAMAMOTO MASAKUNI

CANON KK

Optical information reproducing apparatus

Semiconductor laser and beam splitting devices, and optical information recording/reproducing, optical communication, and optomagnetic recording/reproducing apparatuses using semiconductor laser and beam splitting devices

Recording and reproducing method and apparatus compensating for predicted deviation based on detected relative skewing of recording medium

Medium and related method and apparatus for recording and reproducing information in cells using multiple interference

Image communication apparatus for communicating binary and multi-value color image data

Stereoscopic compression processing with added phase reference

Magnetooptical information recording/reproducing apparatus

Information recording method, method for reproducing recorded information, and apparatus therefor

Optical head for controlling light irradiation in a magneto-optical recording and/or reproducing apparatus

Information reproducing method and apparatus for counting the number of errors and warning

Optical information recording/reproduction apparatus with super-resolution optical filter

Optical information recording and reproducing apparatus utilizing a plurality of recording light spots

Information recording-reproducing method utilizing domain wall displacement, and magneto optical medium

Method and apparatus for verifying recording data and for determining recording error using a detected light amount

Magneto-optical recording method using a magneto-optical recording medium having two or more magnetic layers to allow recording and reproduction to be effected simultaneously and magneto-optical recording medium used in the method

Method of recording information on a recording medium having at least two magnetic layers

Optical information recording medium with a separating part between information tracks

Magneto-optical reproducing method using a magnified magnetic domain

Information reproducing apparatus for reproducing information by magnetic wall movement

Apparatus for reproducing magneto-optical information utilizing magnetic domain displacement, method therefor, and method for information recording

Signal reproducing apparatus using movement of magnetic wall

Optical information recording/reproducing apparatus that produces verifying reproduction signals by executing a computation using detection signals of multi-divided detection surfaces of a photo-detector

Optical head

Optical information recording/reproduciing apparatus having two-division detectors

Information processing method and system

Optical information processing apparatus having a neural network for inducing an error signal

Optical information recording/reproducing apparatus including means for varying intensity of a preheating light beam

Optical head device having a light splitter with a diffraction grating structure

Information reproducing method and apparatus including comparison of a parity valve counted by a flip-flop with a parity bit attached to a data unit

Optical information recording/reproducing apparatus for accurately detecting magnetic domain edges

Optical Information recording/reproducing apparatus

Multi-level information reproducing method

Light exposure method

Magnetooptical information recording and reproducing apparatus which reproduces information by detecting only portions of light from a recording medium not shielded by a shielding device

Optical head and magneto-optical reproducing apparatus using the same

Optical information recording-reproducing apparatus including a light beam detector being divided by a division line extending in a direction perpendicular to an information track

Information recording carrier

Optical information reproducing method

Optical information reproducing method

Optical information reproducing method

Method and apparatus for reproducing optical information

Recording strategy in multilevel recording

Method and apparatus of reproducing multilevel information

Optical information recording/reproducing method

Method and apparatus for recording and reproducing multi-level information

SHINETSU CHEMICAL CO

Process for producing vinyl chloride polymer in the presence of a chelating agent

Process for producing vinyl chloride polymer, with iron chelates in coated vessel

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Method and apparatus for recording information on information recording medium

YUASA MAKOTO

Catalyst material and process for preparing the same