Inventor

MATSUI TSUTOMU

JP57 patents

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

MATSUI TSUTOMU

NEC CORP

Objective lens actuator for optical head and used for high speed access

Land/groove detecting method and apparatus for an optical disk

Optical head apparatus

Device for initializing an optical disc

Astigmatic difference correcting method for optical head and apparatus therefor

Objective lens actuator for optical head

Objective lens actuator and method for manufacturing the same

Objective lens actuator and method for manufacturing the same

Phase change optical disk initializing apparatus

Optical recording medium having multiple recording layers and method for recording and reproducing thereof

Optical disc apparatus with sensing circuitry to judge a movement direction of a beam spot

Optical disk initializing apparatus

Method and apparatus for controlling track kick for optical disk drive

Thin type optical head

Apparatus for detecting a focus error and a tracking error of an optical head

Actuator for an optical head

Objective-lens actuator

Astigmatic difference correcting method for optical head and apparatus therefor

Astigmatic difference correcting method for optical head and apparatus therefor

Apparatus and method for playing back optical recording having high linear density

Optical head with a plurality of optical sensors to receive reflected light beams for reproducing focusing, tracking and RF signals

Tracking signal detection with a photodetector receiving one of a ∓1st-order polarized light

Concurrent recording and reproducing optical disc and optical head apparatus for the same

Method for erasing rewritable optical disk using two laser beams

Method for erasing rewritable optical disk using two laser beams and an erasingspacehead therefor

FUNAI ELECTRIC CO

Hard disc device

Objective lens driving device for optical head

Optical pickup device for supporting a plurality of types of optical disks

Optical disk device having mirror in micro electrical mechanical system

Data recording and reproducing device

Objective lens supporting apparatus and optical pickup

MEMS mirror device and optical disk apparatus

Optical pickup device

Optical head disk device

TOSHIBA KK

Battery including branched current collector sections

Battery with wound electrode group and positive and negative electrode insulating covers

Battery

Battery with wound electrode group and positive and negative electrode insulating covers

Battery comprising multiple insulating covers

Battery with wound electrode group and positive and negative electrode insulating covers

TOSHIBA BATTERY

Battery device

Battery device having a turbulence accelerator for disordering a coolant flow

Battery module of parallel electric cell rod bodies

Battery, lead member for battery connection, and battery pack using the same

MITSUBISHI RAYON CO

Process for preparation of modified methacrylic resin molding material

ISHII HIDEYUKI

Battery comprising a conductive nipping member

MITSUBISHI PLASTICS INC

Gas barrier film laminate

SHINODA TATSUYA

Battery with wound electrode group and positive and negative electrode insulating covers

TOKYO ELECTRIC CO LTD

Dot printer

MATSUI TSUTOMU

Gas barrier film laminate