Inventor

OYAMA HAJIME

JP126 patents

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

OYAMA HAJIME

RICOH KK

Image forming apparatus

Image forming apparatus and an image forming process unit

Image forming apparatus, monocolor image forming apparatus, toner recycling apparatus and intermediate transfer member

Development method apparatus, image formation and process cartridge for suppressing variation in toner charge

Developing device for an image forming apparatus having developer distribution features

Developing device using a toner and carrier mixture

Developing device for an image forming apparatus

Image density control method for an image forming apparatus for reducing background contamination of a photoconductive drum

Developing device for an image forming apparatus and toner cartridge

Image forming apparatus

Toner support member and developing device prevented from charging toner by friction

Image forming apparatus, developing device therefor and image forming process unit

Image forming apparatus having a toner concentration control capability with a toner concentration sensor disposed in a developing unit

Developing device

Developing device and process cartridge for an image forming apparatus

Developing device, image forming apparatus, and process cartridge

Developing unit for an image forming apparatus having a magnetic rotating blade agitator

Developing machine which uses a developing agent including a toner and magnetic particles

Developing device capable of automatic toner content control

Image density control method and color image forming apparatus

Color-balance control method

Development apparatus

Apparatus for developing electrostatic image

Development apparatus

Developing device for image forming apparatus

Toner end detecting method for an electrophotographic copier

Developing device, and image forming apparatus and process cartridge using the developing device

Developing device, image forming apparatus and process cartridge including replenishment openings

Developing unit and image forming apparatus

Image transferring device for an image forming apparatus and method of forming same

Exposing apparatus for color copier

Electrophotographic apparatus comprising improved imaging system

Magnetic brush developing process for electrostatic images

Toner charging apparatus

FUJI HEAVY IND LTD

Lane keeping assistance equipment for automotive vehicles

Wakefulness estimating apparatus and method

Driver&#39;s arousal level estimating apparatus for vehicle and method of estimating arousal level

Travel control apparatus for vehicle

Wakefulness estimating apparatus and method

Awakening level estimation apparatus for a vehicle and method thereof

Steering control apparatus

Steering control apparatus

SUBARU CORP

Travel control apparatus for vehicle

Travel control apparatus for vehicle

Automatic driving control apparatus for vehicle based on driving skill of driver

MITSUBISHI ENG PLASTICS CORP

Integrally molded articles of polyamide resins

Vibration welded hollow moldings of polyamide resin composition

SAITO TORU

Traffic lane deviation preventing system for a vehicle

MITSUBISHI ELECTRIC CORP

Electric power steering apparatus

OYAMA HAJIME

Lane line estimating apparatus

Driver's arousal level estimating apparatus for vehicle and method of estimating arousal level