Inventor

NAKAMURA SHIGERU

JP208 patents

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

NAKAMURA SHIGERU

HITACHI LTD

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

Short wavelength optical disk head having a changeable aperture

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

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

Optical head and information recording apparatus

Optical tape apparatus with a tracking control mechanism and/or a focusing control mechanism

Semiconductor laser device

Optical information processor for compensating offset

Solid-state laser device including uniaxial laser crystal emitting linearly polarized fundamental wave and nonlinear optical crystal emitting linearly polarized harmonic wave

Polarizing diffraction grating and magneto-optical head made by using the same

Optical head and apparatus for recording and reproducing optical information through the use of the optical head

Information recording/reproducing apparatus and method and information recording medium

Phase change optical disk medium

Laser device driven by a periodic waveform optimized for reducing laser noise

Magneto-optical recording and reproducing method, magneto-optical memory apparatus and magneto-optical recording medium therefor

Prism optics and optical information processing apparatus

Autofocusing control system

Optical recording apparatus

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

Focus error detecting method and optical head using the same

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

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

Stack type optical disc apparatus, sealed and separate type optical head therefor and optical disc medium

Focal position detecting optical apparatus

Focus error detection apparatus utilizing focusing an front and rear sides of focal planes

Disc recording system

Optical head and optical information processor using the same

FUJI PHOTO FILM CO LTD

Photoelectric conversion device and photo cell

Light-emitting element and method of producing the same

Negative electrode material for nonaqueous secondary battery and nonaqueous secondary battery comprising same negative electrode material

Photographic processing solution having a stabilizing ability and a method for processing a silver halide color photographic light-sensitive material

Processing solution for silver halide color photographic materials and method for processing the materials with the processing solution

NEC CORP

Semiconductor optical waveguide type switch including light control means

Wavelength converter

Nonlinear optical switch

Optical circuit element and configuration method for the optical circuit element

KANSAI PAINT CO LTD

Scratch resistant top coating composition

Method for film formation and product thereof

Method of forming coating films

Method of forming coating films

TOKIMEC INC

Accelerometer and spherical sensor type measuring instrument

Acceleration-detection type gyro

Electrostatic rate gyroscope

OPHTECS CORP

Perfusate preparation for ophthalmic operation

One-pack preparation for disinfection, neutralization and cleaning of contact lenses and method of disinfection, neutralization and cleaning

HITACHI CABLE

Magneto-optical head employing optical fiber connected stationary and movable portions

Focusing error detecting system for optical head

SUMITOMO METAL IND

High toughness steel material and method of producing steel pipes using same

HITACHI MAXELL

Optical information recording/reproducing system including novel tracking system

NAKAMURA SHIGERU

Popcorn processing machine