Inventor

TSURU SEIJI

JP22 patents

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

TSURU SEIJI

CANON KK

Conductive member

Developer carrying member, electrophotographic process cartridge, and electrophotographic image forming apparatus

Electrophotographic member having elastic layer with elastic modulus of 0.5 to 3.0 MPA and coating layer with elastic modulus of 5.0 to 100 MPA

Conductive member, and process cartridge and electrophotographic apparatus which make use of the same

Conductive member

Developing roller, electrophotographic process cartridge and electrophotographic image forming apparatus

Charging member, process cartridge, and electrophotographic apparatus

Electrophotographic roller, process cartridge and electrophotographic image forming apparatus

Developer feed roller, developing apparatus, electrophotographic image forming apparatus, and process cartridge

HITACHI LTD

Package-type screw compressor

Operation control system of rotary displacement type vacuum pump

Screw compressor

Screw compressor

Air compressor and method of operating the same

Two-stage vacuum pump apparatus and method of operating the same

Package-type screw compressor having coated rotors

Screw compressor system and operating method thereof

HITACHI PLANT TECHNOLOGIES LTD

Heat exchanger for air compressor

Compressor remote monitoring system

YAMADA SATORU

Electroconductive member, process cartridge and electrophotographic image forming apparatus

HIRAKOSO YUKA

Electroconductive member, process cartridge and electrophotographic apparatus

MURANAKA NORIFUMI

Electro-conductive member for electrophotography, process cartridge, and electrophotographic apparatus