Inventor

ISHIKAWA HIROYUKI

JP150 patents

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

ISHIKAWA HIROYUKI

BROTHER IND LTD

Ink ejecting device

Ink droplet ejecting method and apparatus

Ink droplet ejecting method and apparatus

Ink droplet ejecting method and apparatus

Ink droplet ejecting method and apparatus

Method for producing an ink jet head

Liquid delivery apparatus

Droplet-jetting device with pressure chamber expandable by elongation of pressure-generating section

Method and apparatus for effecting the volume of an ink droplet

Liquid ejection apparatus

Droplet ejecting apparatus that contains an actuator plate having a communication hole

Ink jet head for ejecting ink by exerting pressure on ink in ink channels

Ink ejecting device having ink chambers of differing shapes

NEC CORP

Picture encoding apparatus

Method for detecting a scene change and image editing apparatus

Moving picture encoding method and moving picture encoding apparatus

Moving-picture compressing technique

Apparatus and method for coding a moving picture

Picture compression managing apparatus and picture compression managing method used therefor

Device and method of retrieving high-speed motion

SEIKO EPSON CORP

Ink-jet head, ink jet printer, and its driving method

Ink jet recording apparatus, and an ink jet head

Ink jet recording apparatus

Drive method for an electrostatic ink jet head for eliminating residual charge in the diaphragm

Optical reporting reproducing device having fixed and movable optical systems

Ink-jet head and ink-jet printer

Inkjet printer

KAWASAKI STEEL CO

Ultrafine spherical nickel powder for use as an electrode of laminated ceramic capacitors

Atomized steel powder excellent machinability and sintered steel manufactured therefrom

Method of making iron-based powder mixture

Water-atomized iron powder and method

ROHM CO LTD

Stabilized power supply unit having a current limiting function

Stabilized power supply unit having a current limiting function

DC/DC converter and audio device incorporating the same

EL element driving circuit and EL element lighting device using the same

TOSHIBA TEC KK

Ink circulation device and ink ejection device

Liquid circulation device, liquid discharge device and control method for the same

Liquid circulation device and liquid discharging apparatus

SONY CORP

Method for assembling a disc-shaped recording medium

Apparatus for assembling a disc-shaped recording medium and a method for assembling disc-shaped recording medium using the apparatus

MATSUSHITA ELECTRIC WORKS LTD

Timber surface improving treatment process

Method of manufacturing modified wood material

NISSAN MOTOR

Method of preparing composite sintered body

CASIO COMPUTER CO LTD

Electronic cash register

DELTA KOGYO CO

Headrest lock structure with lock slots, method for forming lock slots in headrest pole and method for producing headrest pole

CHUGAI PHARMACEUTICAL CO LTD

Antigen-binding domain, and polypeptide including conveying section

NAKAZAWA KOJI

High-pressure hydrogen producing apparatus

YONEMARU MASAO

Driving circuit for light emitting diode

ISHIKAWA HIROYUKI

Driving circuit for light emitting diode

CALSONIC CORP

Method for welding metal honeycomb carrier