Inventor

SAKAMOTO KOJI

JP103 patents

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

SAKAMOTO KOJI

RICOH KK

Method and apparatus for forming toner images

Image forming apparatus and cleaning device therefor

Electrostatic copying machine

Method of maintaining the correct conditions of an electrophotographically duplicated image

Development apparatus

Color image forming apparatus having integral multiple length belt

Color image forming apparatus

Image forming apparatus

Holder device for handling an image carrier of an image forming apparatus

Developing device with a developing roller and using a single-component developer and method for producing such developing roller

Image forming apparatus having a removable image forming process kit

Image forming apparatus

Developing device

Developing device with regulated developer supply

Developing device

Developing device having dispersed floating electrodes in a dielectric layer

Exposure control and other component control for electrostatic copying machine

Electrostatographic apparatus comprising document density sensing means

Replacement of a cartridge usable with image forming equipment

Image forming apparatus to form smooth image with inconspicuous granularity

Developing device

Voltage-controlled developing device

Developing device

Device for forming a developer film

Developing apparatus for electrostatic photography

Apparatus for sensing deterioration of developing substance including ferromagnetic carrier and non-magnetic toner particles

Installation and removal structure of a developing unit and a toner cartridge in an image forming apparatus

Developing apparatus for electrostatic photography

Developing apparatus for electrostatic photography

Collection of suspended toner particles

Toner separation and recovery apparatus

Apparatus for sensing toner density using a stationary ferromagnetic mass within the toner to increase sensitivity

Electrostatographic apparatus comprising improved development bias means

Photosensitive member for use in electrophotographic apparatus and method of manufacturing the same

HITACHI LTD

Magnetic recording medium, method for producing the same and magnetic recording apparatus using the same

Magnetic recording medium and magnetic recording apparatus

Magnetic recording medium, producing method of the same and magnetic recording system

Magnetic recording medium, method of fabricating magnetic recording medium, and magnetic storage

DENSO CORP

Vehicle authentication apparatus

Vehicle-mounted device

TOSHIBA KK

Control system for power conversion system

HATTORI MASASHI

Magnetic head with wide sensor back edge, low resistance, and high signal to-noise ratio and methods of production thereof

MATSUSHITA ELECTRIC WORKS LTD

Fire detector unit

PANASONIC CORP

Detector

SUZUKI JUNICHI

Wireless fire alarm system

SAKAMOTO KOJI

Current perpendicular to plane (CPP) magnetic read head

NIPPON SOKEN

Antenna unit having radio absorbing device

KYOCERA CORP

Ceramic heater and method for manufacture thereof

SHIMADA YOSHITAKE

Sensor

DAINICHISEIKA COLOR CHEM

Neutrophil function inhibitors