Inventor

ICHIMURA ISAO

JP61 patents

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

ICHIMURA ISAO

SONY CORP

optical pickup apparatus

Recording/reproducing apparatus and recording/reproducing method for optical recording media

Apparatus for reproducing sound signals recorded on a motion picture film with digital sound track

Lens driving device, optical head and optical disc system

Position controller and position control method of optical system and recording/reproducing apparatus and driving method thereof

Optical recording and reproducing apparatus and optical recording and reproducing method

Optical disc recording/reproduction apparatus having a lens group, focus, servo, and jog mode adjustment

Recording/reproducing apparatus and method for phase-change optical disc

Optical pick-up device, optical recording/reproducing apparatus and objective lens

Objective lens having a doublet lens with high numerical aperture

Optical disc recording/reproduction apparatus and method

Optical recording medium recording and reproducing apparatus and optical pickup device

Optical pick-up device

Biometrics authentication system with authentication based upon multiple layers

Semiconductor laser drive circuit

Optical element for correction of chromatic aberration, optical pick-up device having optical element for correction of chromatic aberration, optical reproducing device having optical pick-up device and optical recording and reproducing device

Optical head and drive device for optical recording medium

Optimizing a distance between lenses of a two objective lens for minimizing wavefront aberration and offsetting focus control

Laser light generating apparatus

Optical recording medium processing device and focal point control method thereof

Optical recording/reproduction device and focal point control method

Optical recording medium/system with heat-dissipating and light reflecting layers

Optical recording medium with high density track pitch and optical disk device for recording and playback of the same

Focus controlling apparatus and method, and optical disc drive

Optical recording medium, optical pickup and optical recording and/or reproducing apparatus

Optical recording medium, method of producing same, and optical recording and reproduction device

Objective lens unit and recording/reproduction apparatus

Optical pickup and an optical pickup objective lense assembling method

Lens designing method and objective lens apparatus with two lenses

Optical pickup device with a floating element

Optical pickup device for light collection onto an optical recording medium

Apparatus for detecting positive and negative noise signals in a video signal

Dropout detecting circuit with one-half wavelength delay

Motion picture film with digital sound track

Multi-layer optical information recording medium

Optical information reproduction apparatus and optical information reproduction method

Optical disk apparatus and pickup unit

Information recording device and information recording method

Optical recording medium with high density track pitch and optical disk drive for recording and playback of the same

Optical recording medium with high density track pitch and optical disk drive for recording and playback of the same

Information recording disc having an anti-reflection layer and information recording/reproducing apparatus

Optical recording medium, method of producing same, and optical recording and reproduction device

YAMAMOTO KENJI

Biometrics authentication system

Imaging device

Image pickup apparatus

Biometric image pickup apparatus

ICHIMURA ISAO

Image pickup apparatus having a microlens array

Optical disk recording and playback apparatus and signal detection method utilizing a differential push-pull method and a phase difference method

HAYASAKA KENGO

Image pickup apparatus

KAJIHARA JUNJI

Image pickup apparatus and image pickup method