Inventor

SUMI KOJI

JP79 patents

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

SUMI KOJI

SEIKO EPSON CORP

Ink-jet recording head with piezoelectric device and method for manufacturing the same

Ink jet recording head containing a sealed fluid for protecting a piezoelectric vibrator

Actuator device, liquid-jet head and liquid-jet apparatus

Piezoelectric actuator, ink-jet type recording head, manufacturing method therefor, and ink-jet printer

Method for manufacturing piezoelectric material

Piezoelectric luminous element, display device and method for manufacturing same

Display device having anti-reflective electrodes and/or insulating film

Piezoelectric actuator, ink jet printing head, printer, method for manufacturing piezoelectric actuator, and method for manufacturing ink jet printing head

Liquid ejection head and liquid ejection apparatus

Piezoelectric actuator and liquid jet head

Piezoelectric device, liquid jetting head, ferroelectric device, electronic device and methods for manufacturing these devices

Piezoelectric actuator, liquid jetting head and liquid jetting device using the same

Piezoelectric element, liquid-jet head and liquid-jet apparatus

Liquid jet head and a piezoelectric element

Liquid ejecting head and method for manufacturing the same

Actuator device, liquid-jet head and liquid-jet apparatus

Method for driving liquid-jet head and liquid-jet apparatus

Piezoelectronic actuator and liquid jetting head

Piezoelectric actuator and liquid discharge head

Method for manufacturing piezoelectric luminous element

Process for producing a piezoelectric element using a first SOL and a second SOL having a lead content greater than the first SOL

Liquid ejection head and liquid ejection apparatus

Piezoelectric material, piezoelectric element, liquid ejecting head, liquid ejecting apparatus, ultrasonic sensor, piezoelectric motor, and power generator

Piezoelectric material, piezoelectric element, liquid ejecting head, liquid ejecting apparatus, ultrasonic sensor, piezoelectric motor, and power generator

Piezoelectric material, piezoelectric element, liquid ejecting head, liquid ejecting apparatus, ultrasonic sensor, piezoelectric motor, and power generator

Actuator device, liquid-jet head and liquid-jet apparatus

Optical panel and method of fabrication

Method of manufacturing dielectric layer and method of manufacturing liquid jet head

Method of forming a piezoelectric layer in forming a piezoelectric element including a lower electrode on one surface of a substrate

Liquid ejection head and liquid ejection apparatus

Liquid ejection head and liquid ejection apparatus

Composite for forming ferroelectric thin film, ferroelectric thin film, method of manufacturing ferroelectric thin film, and liquid-jet head

Piezoelectric element, actuator device, liquid-jet head and liquid-jet apparatus

Piezoelectric element, actuator device, liquid-jet head and liquid-jet apparatus

Piezoelectric element, liquid-jet head using piezoelectric element and liquid-jet apparatus

Drive unit for liquid ejection head

Drive unit for liquid ejection head and liquid ejection apparatus provided with such unit

Piezoelectric element and method of manufacturing same

Method for producing piezoelectric actuator

Piezoelectric element, piezoelectric element application device, and method of manufacturing piezoelectric element

Liquid discharge head and printer

Piezoelectric element and piezoelectric element applied device

Piezoelectric element and piezoelectric element applied device

Dielectric film and piezoelectric element

Actuator device, liquid-jet head and liquid-jet apparatus

Piezoelectric device and liquid jet head

DAIKIN IND LTD

Method and device for drying substrate

Method and device for drying substrate

SEIK EPSON CORP

Method for manufacturing piezoelectric element, and piezoelectric element, ink-jet recording head and printer

SEIKO EPSON CORP A JAPANESE CO

Display device having anti-reflective electrodes and/or insulating film