Inventor

ARIMOTO AKIRA

JP88 patents

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

ARIMOTO AKIRA

HITACHI LTD

Prism plate for efficiently emitting light flux within a predetermined range, and liquid crystal indicator and indicator illumination method using the same

Directional reflection screen and display system using the same

Directional reflection screen and projection display

Reflective liquid crystal display apparatus which does not require a back light

Prism plate for efficiently emitting light flux within a predetermined range, and liquid crystal indicator and indicator illumination method using the same

Liquid crystal substrate having 3 metal layers with slits offset to block light from reaching the substrate

Optical head and information recording apparatus

Optical scanning apparatus and asymmetrical aspheric scanning lens

Light beam scanning apparatus with controller for varying spacing between a plurality of scanning beams

Object lens and optical head for reproducing data from optical disks in different thickness of substrate

Optical head having two lasers of different wavelength and an objective lens made of one material having a rectangular groove shifting phase to decrease focused laser beam spot aberration for focusing laser beams on different thickness substrates

Tracking method for optical disk apparatus using diffraction light

Non-linear optical saturable absorber layer in an optical disk to discriminate wavelength above or below a threshold level of intensity

Laser beam scanning apparatus having a variable focal distance device and the variable focal distance device for use in the apparatus

Variable density scanning apparatus

Fabrication method and equipment for diffraction gratings

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

Prism optics and optical information processing apparatus

Optical reproducing apparatus

Optical system for changing laser beam spot size during scanning of scanning line

System for holding plural light beams in predetermined relative positions

Optical system for information processing

Directional reflection screen and display system using the same

Reflective liquid crystal display having a hologram color filter

Light insensitive type active matrix with P and N regions connected to a reference potential

Light beam scanning apparatus which controls power and spot shape of light beam

Image forming method and apparatus using energy beam impingement on image forming particles to move the same

Optical information processing apparatus and method of controlling position of optical spot and reproducing signals

Recording medium having a plurality of nonlinear transmission characteristics

Scanning optical device and method for making a hybrid scanning lens used therefor

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

Optical neural network system

Optical pickup using a waveguide

LCD and projection type display using same

LCD and projection type display using same

LCD and projection type display using three metalization layers and black layer

Optical beam scanning system with rotating beam compensation

Laser beam scanning apparatus for scanning a laser beam obtained by composing a plurality of beams

Method of fabricating article having aspheric figure and tool for use in carrying out the method

Semiconductor laser array device

HITACHI KOKI KK

Laser printing apparatus with device for combining a plurality of optical beams provided with an integral-order wave plate

Optical printer

Laser scanner

Optical scanner and method for generating and detecting a composite dot on a scanning medium

Laser printer with harmonic wave separation of the beam

Beam position control device

PENTAX CORP

Optical communication apparatus

Optical lens for optical disc drive with aberration suppression for recording/reproducing for a plurality of optical disc types

FUKUSHIMA ATSUKO

Optical integrated circuit and optical apparatus

HOYA CORP

Digital single-lens reflex camera