Inventor

HIRATA TOICHI

JP91 patents

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

HIRATA TOICHI

HITACHI CONSTRUCTION MACHINERY

Construction machine managing method and system, and arithmetic processing device

Failure measure outputting method, output system, and output device

Cab for construction machinery

Engine control system for construction machine

Region limiting excavation control system for construction machine

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

Region limiting excavation control system for construction machine

Hydraulic drive system for construction machine

Control system for load-sensing hydraulic drive circuit

Hydraulic drive traveling system

Hydraulic excavator

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 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

Hydraulic drive system and directional control valve

Hydraulic drive system for construction machines

Hydraulic drive system

Hydraulic drive system for construction machines

Displacement of variable displacement pump controlled by load sensing device having two settings for low and high speed operation of an actuator

Hydraulic drive system for crawler mounted vehicle

Hydraulic drive system for civil engineering and construction machine

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

Construction machine management apparatus and construction machines management system

Communication system for working machines

Signal processing system for construction machine

Method for managing construction machine, and arithmetic processing apparatus

Operator&#39;s cab in construction machine

Operator&#39;s cab in construction machine

Excavation area setting system for area limiting excavation control in construction machines

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

Apparatus for controlling rotational speed of prime mover of construction machine

Control system for hydraulically-operated construction machinery

Security system of construction machine

HITACHI CONSTRUCTION CO LTD

Anti-vibration apparatus in a hydraulic system for boom cylinder of working apparatus

Operator's cab in construction machine

Operator's cab in construction machine