Inventor

SAKATA HAJIME

JP43 patents

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

SAKATA HAJIME

CANON KK

Liquid crystal light modulation device

Projection display device

Surface plasmon resonance sensor apparatus using surface emitting laser

Oscillation polarization mode selective semiconductor laser, modulation method therefor and optical communication system using the same

Diffraction grating type liquid crystal display device in viewfinder

Optical apparatus using wavelength selective photocoupler

Semiconductor laser element capable of changing emission wavelength, and method of driving the same

Liquid crystal light modulation device

Display element and observation apparatus having the same

Optical modulation device

Optical waveguide, method of fabricating the waveguide, and optical interconnection device using the waveguide

Light deflection device and array thereof

Light deflection device and array thereof

Optical integrated nodes, and optical communication systems and networks using the optical integrated nodes

Optical semiconductor apparatus driving method therefor light source apparatus and optical communication system using the same

Display device having a mesomorphic diffraction grating layer adjacent a polymer dispersed layer

Optical semiconductor apparatus, a method of driving the same and an optical transmission system using the same

Optical device used wavelength selective photocoupler

Optical apparatus using wavelength selective photocoupler

Optical waveguide modulator communications device and method of modulating light using same

Optical analog-digital converter provided with a nonlinear optical element and an optical feedback system for the output lights of said element

Compound semiconductor device and fabrication method of producing the compound semiconductor device

Multi-wavelength light detecting and/or emitting apparatuses having serially arranged grating directional couplers

Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus

Light wavelength converting apparatus, control method of the same, and image projecting apparatus using the same

Optical wavelength converting apparatus, and optical wavelength converting method

Harmonic generator, method for driving harmonic generator, image-displaying apparatus, image-forming apparatus, optical storage apparatus that employs harmonic generator

Image display apparatus

Surface optical device apparatus, method of fabricating the same, and apparatus using the same

Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus

Surface emitting semiconductor laser, and its fabrication method

Nonlinear optical element having electrodes on two side surfaces of nonlinear medium through insulating layers

Method and apparatus for image conversion with multiple exposures for filtering

Integrated type optical node and optical information system using the same

Integrated type optical node and optical information system using the same

Control method of distributed Bragg reflection semiconductor laser, and image projecting apparatus

Optical wavelength converting apparatus and optical wavelength converting method

Process for producing solid-state color image pickup array

Integrated type optical node and optical information system using the same

NAGANO AKIHIKO

Optical modulation element having two-dimensional phase type diffraction grating

IBM

Semiconductor laser element capable of changing emission wavelength, and method of driving the same

OLYMPUS CORP

Endoscope

NAKA TOMOMI

Memory device with test mechanism