Inventor

SUGIYAMA GENROKU

JP94 patents

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

SUGIYAMA GENROKU

HITACHI CONSTRUCTION MACHINERY

Construction machine managing method and system, and arithmetic processing device

Failure measure outputting method, output system, and output device

Method and system for managing construction machine, and arithmetic processing apparatus

Hydraulic drive traveling system

Working machine, trouble diagnosis system of working machine, and maintenance system of working machine

Work machine maintenance system

Working machine, failure diagnosis system for work machine and maintenance system for work machines

Oil pressure circuit for working machines

Method of detection of actual operating time of machinery deployed at construction sites, data collection and management system, and base station

Method and system for managing construction machine, and arithmetic processing apparatus

Hydraulic circuit system for hydraulic working machine

Hydraulic circuit system for hydraulic working machine

Hydraulic control system

Hydraulic circuit system for hydraulic excavator

Hydraulic circuit system for civil engineering and construction machines

Hydraulic drive system for hydraulic working machines

Hydraulic recovery device

Hydraulic drive system for hydraulic working machines

Hydraulic drive system and directional control valve

Hydraulic drive system for construction machines

Hydraulic drive system

Hydraulic drive system for construction machines

Hydraulic drive system for civil engineering and construction machine

Construction machine dual-dump hydraulic circuit with piloted arm-boom cylinder supply priority switching valves

Location confirmation method and location display system of construction machine and such construction machine

Hydraulic circuit of construction machinery

Construction machine management apparatus and construction machines management system

Communication system for working machines

Hydraulic circuit of construction machinery

Method for managing construction machine, and arithmetic processing apparatus

Pipe breakage control valve device

Hydraulic drive system for construction machine

Auto-acceleration system for prime mover of hydraulic construction machine and control system for prime mover and hydraulic pump

Control system for prime mover and hydraulic pump of hydraulic construction machine

Hydraulic by-pass circuit for a hydraulic shovel

Hydraulic drive system for construction machines

Hydraulic system having tandem hydraulic function

Hydraulic pump control system

Hydraulic control system for construction machines

Hydraulic control valve apparatus and hydraulic drive system

Hydraulic control system for construction machine

Hydraulic driving apparatus

Control system for hydraulically-operated construction machinery

Security system of construction machine

Hydraulic drive system for hydraulic work vehicle

Hydraulic drive system for construction machines

Control device for working vehicle

Traveling hydraulic working machine

Construction machine management apparatus and construction machines management system

ZEXEL CORP

Hydraulic control valve system