Inventor

KATAOKA KEIJI

JP53 patents

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

KATAOKA KEIJI

HITACHI LTD

Information recording medium with clock information therein

Optical projection apparatus with the function of controlling laser coherency

Lens-on-disc type optical scanning apparatus

Optical recording apparatus

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

Apparatus for counting particles suspended in a fluid having a polarizing beam splitter

Optical device for generating pattern having uniform light intensity distribution

Light modulating device array

Optical system for semiconductor laser and optical information processing equipment utilizing the same

Wavelength scanning interferometry and interferometer employing laser diode

System for holding plural light beams in predetermined relative positions

Optical system for information processing

Hologram apparatus

Magneto-optical data recording system

Optical projection printing apparatus wherein wafer mark has a grating pitch in the sagittal plane of the first optical system

Optical information recording and reproducing apparatus

Light scanning device using lenses

Laser recorder with piezoelectric bimorph focal length vibrator

Information recording apparatus and method for modulated magneto-optical recording medium

Magneto optical recording medium apparatus and method utilizing light pulse magnetic modulation recording

Magneto-optical data recording system continuously irradiating optical pulsers

Optical information processor and method for accessing rotating record carrier utilizing acousto-optic light deflector including holding a focus error signal during track jumping

Optical focussing and tracking system using a polarization prism for dividing the reflected beam

Hologram lens

Optical system to condense light from a semiconductor laser into a circular spot

Optical pickup using waveguide

Optical scanning system

Magneto-optical data recording apparatus using a sample-servo system for applying heating pulses to record data

Method and apparatus for generating optical information

HITACHI KOKI KK

Light scanner and multi-beam generator using the same

Multi-beam generating element and optical printing apparatus therewith

Light control device

Module for optical fiber receptacle used in a scanning device

Laser beam scanning apparatus and method providing controllable print density

Optical recording apparatus and method for adding information in a sub-scanning direction and for deflecting a light beam to an optimum sub-scanning recording position

Optical recorder having a signal separation circuit and a FIFO memory circuit

Exposure device of electrophotographic apparatus with optical path position deciding device

Optical recording apparatus using optical fibers for guiding laser beams

Optical system for analyzing samples separated by a centrifugal separator

Laser printing device with control of oscillation amplitude

RICOH PRINTING SYS LTD

Multi-beam light source, method for manufacturing the same, light scanning unit using the same, and image forming apparatus using the same

Semiconductor laser module for optical scanner

Semiconductor laser module

Multi-beam generating device and optical recording device using the same

FINE MACHINE KATAOKA CO LTD

Washing device and its work conveying method

Washing device and its work conveying method

Work washing apparatus

HITACHI PRINTING SOLUTIONS LTD

Optical recording apparatus including light-transmitting diffraction grating and multi-channel acousto-optic modulator

Optical recording apparatus

KATAOKA KEIJI

Washing apparatus comprising a capsule-shaped washing chamber