Inventor

OHNISHI KUNIKAZU

JP39 patents

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

OHNISHI KUNIKAZU

HITACHI LTD

Optical transmission and receiving module and optical communication system using the same

Optical head including electrical circuit which produces focus error signal and tracking error signal unaffected by variations in intensity distributions of reflected light beams

Optical pickup for optical disk apparatus

Tracking method for optical disk apparatus using diffraction light

Optical recording/reproducing apparatus with light beam deflection means including wedge-shaped prism

Optical reproducing apparatus

Optical pickup and optical information recording apparatus using the same

Optical detector, optical pickup and optical information reproducing apparatus using optical pickup

Optical detector, signal processing circuit and optical information reproduction apparatus thereof

Optical disk drive

Optical disc with phase pits and a reproducing apparatus for data recorded on the optical disc

2-laser optical head and recording/reproducing apparatus

Recording/reproducing optical head producing focusing error signal from zero-th order diffracted light and tracking error signal from first order diffracted light

Method of recording and reproducing digital information and apparatus therefor

Optical detector having three light receiving areas

Optical head

Optical detector, optical pickup and optical information reproducing apparatus using optical pickup for detecting at least three light beams separated from one or more light sources

Information reproducing method which reproduces plural components of a focus error signal and a tracking error signal from plural detection regions of plural reflected light beams

Method for recording and reproducing information using at least two energy beams

Optical pickup and optical information recording apparatus using the same

Optical pickup and optical information recording apparatus using the same

Optical pickup and optical information recording apparatus using the same

Optical pickup and optical information recording apparatus using the same

Optical pickup and optical information recording apparatus using the same

HITACHI MEDIA ELECTRON KK

Photodetector, diffraction grating, optical pickup and optical disc apparatus

Optical pickup and optical disc apparatus

Optical information recording apparatus

Photodetector, diffraction grating, optical pickup and optical disc apparatus

Optical pickup and optical information reproducing apparatus using same

Optical pickup and optical disc drive

OHNISHI KUNIKAZU

Optical beam scanning device and image display device using the same

Optical information processing device and tracking control method thereof for use with grooveless multilayer optical disc

Diffraction grating, optical pickup and optical disc device

Optical pickup device

NAKAO TAKESHI

Scan type image display device

ISSHIKI FUMIO

Optical information recording apparatus

HITACHI CONSUMER ELECTRONICS

Light source unit and projection display system using same

IZUMI KATSUHIKO

Optical pickup and optical disc unit

NIHON YAMAMURA GLASS CO LTD

Device for applying release agent to glass bottle finishing mold, method for applying release agent to glass bottle finishing mold, device for manufacturing glass bottle, and method for manufacturing glass bottle