What Hokko Kogyo does

JTEKT Fluid Power Systems (株式会社ジェイテクトフルードパワーシステム; operating under the Toyooki brand and historically referenced as Hokko Kogyo) is a Japanese manufacturer of hydraulic and pneumatic equipment, founded in 1958 and headquartered in Okazaki, Aichi Prefecture. The company is a wholly-owned subsidiary of JTEKT Corporation (TSE: 6473), and its technology is built on Pascal's principle — using fluid pressure to transmit and control force across pumps, motors, cylinders, and valves. Core products include the Toyopack family of energy-saving hydraulic units (ECO II Plus, ECO II, NII, Smallpack, Motion), the HD1E ultra-low power directional control valve line (7MPa to 35MPa), aluminum die-casting systems (vacuum shutoff valves and pressure pin feedback control), and the patented Babukes II mechanical defoaming device. The HD1E series was awarded the 2024 Energy Conservation Center Chairman's Prize for achieving a 30% power reduction versus conventional valves.

The company sells directly through sales offices in Okazaki, Tokyo, and Osaka to enterprise customers in industrial machinery (machine tools, factory automation), automotive (AT/CVT oil pump gear sets for OEMs including Toyota, which is also a joint-development partner for die-casting systems), housing/elevators, construction machinery, and shipbuilding. Revenue is generated through one-time equipment sales, hardware sales of automotive components, and custom hydraulic system engineering services under quote-based, multi-year contracts; pricing is not publicly disclosed. The firm is certified to ISO 9001, ISO 14001, and the 2026 Health Management Excellence standard, and distributes through a combination of direct field sales, industry exhibitions (ENEX 2025, MEX Kanazawa 2026), an educational blog ("Oil Pressure Lab"), and digital channels including Monotaro (B2B MRO platform) and a JTEKT-group lease portal.

Name

Hokko Kogyo

Legal name

株式会社ジェイテクトフルードパワーシステム

Website

https://toyooki.jp

Company type

Private

Founded year

1958

Operating status

Operating

Headcount range

1–10 employees

Short description

JTEKT Fluid Power Systems, founded 1958 in Okazaki, Japan, is a wholly-owned subsidiary of JTEKT Corporation that designs, manufactures, and sells hydraulic and pneumatic equipment — including energy-saving hydraulic units, directional control valves, and die-casting systems — for industrial machinery, automotive, housing, and transportation customers.

Ownership category

akta.pro rank

Product category

Industrial Hydraulic and Pneumatic Equipment Manufacturing

NAICS

Fluid Power Pump and Motor Manufacturing (333996), Fluid Power Valve and Hose Fitting Manufacturing (332912)

SIC

Pumps & Pumping Equipment (3561)

akta.pro primary industry

Hydraulic Power Units & Systems (HPUs, Manifolds, Integrated Circuits) (IMAHAGAB)

akta.pro secondary industries

Hydraulic Components (Pumps, Motors, Cylinders) (IMAHAGAA), Pneumatic Components (FRLs, Cylinders, Valves) (IMAHAGAC), Proportional & Servo Hydraulics (Electrohydraulic Valves, Servo Systems) (IMAHAGAF)

Keywords

• Hydraulic equipment manufacturing
• Pneumatic components
• Solenoid control valves
• Energy-saving hydraulic units
• Die-casting equipment

Headquarters

HQ city

Okazaki

HQ country

Japan

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. Hydraulic and pneumatic equipment manufacturing and sales: Designs, manufactures, and sells hydraulic pumps, valves, hydraulic units, pneumatic equipment, and custom hydraulic packages to industrial machinery, automotive, shipbuilding, construction, and other manufacturing customers.
2. Automotive components (AT/CVT oil pump gear sets): Manufactures and supplies transmission oil pump gear sets and drive components for automotive manufacturers.
3. Custom hydraulic systems and engineering services: Provides custom-designed hydraulic systems and engineering solutions packaged to customer specifications, including after-sales service.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Hokko Kogyo (operating as JTEKT Fluid Power Systems) designs, manufactures, and sells hydraulic and pneumatic equipment based on Pascal's principle, including directional control valves, hydraulic power units, energy-saving hydraulic systems, and specialized die-casting equipment. The company packages pumps, motors, cylinders, and control valves into custom hydraulic systems for industrial machinery, automotive, construction, housing, and shipbuilding manufacturers in Japan. It also produces AT/CVT transmission oil pump gear sets for automotive OEMs and operates an after-sales hydraulic consultation service.

Product overview

JTEKT Fluid Power Systems manufactures hydraulic and pneumatic equipment based on Pascal's principle, offering a comprehensive portfolio of directional control valves, hydraulic power units, and specialized systems. The product line includes energy-saving hydraulic units (Toyopack ECOII Plus, Toyopack NII, Smallpack), directional control valves (HD1E series ultra-low power solenoid valves, HDD3 series electro-hydraulic valves), servomotor-driven hydraulic systems (Toyopack Motion), die-casting equipment (vacuum shutoff valves, pressure pin feedback control systems), defoaming devices (Babukesu II), and automotive components (AT/CVT oil pump gearsets). The company serves diverse industries including machine tools, automotive, construction machinery, die-casting, and industrial equipment, with a focus on energy efficiency and custom system design.

Differentiator

Problem solved

Functional benefit

Brands

• トヨパック ECOⅡプラス (Toyopack ECO II Plus): Energy-saving hydraulic unit with inverter drive, achieving approximately 50% power consumption reduction, 35% electricity cost reduction, and 35% CO2 reduction.
• トヨパック ECOⅡ (Toyopack ECO II)
• スモールパック (Small Pack)
• バブけスⅡ (Bubble-less II)
• HD1E series
• 真空遮断弁 (Vacuum Shut-off Valve)
• 加圧ピンフィードバック制御システム (Pressure Pin Feedback Control System)

Products and services

• HD1E Series Ultra-Low Power Solenoid Directional Control Valve (超低電力電磁切換弁 HD1Eシリーズ) Ultra-low power solenoid directional control valve for hydraulic systems, achieving 30% power reduction (from 4.8W to 3.4W) compared to conventional products and enabling direct PLC control without additional relay components. Aimed at machine tool hydraulic control and other industrial hydraulic applications.
• Directional Control Valves (方向制御弁) Complete line of directional control valves including solenoid-operated, pilot-operated, check, and manual valves for hydraulic systems ranging from 7 MPa to 35 MPa applications. For industrial machinery and hydraulic system builders.
• Toyopack ECO II Plus Energy-Saving Hydraulic Unit (省エネ油圧ユニット トヨパック ECO II +) Inverter-driven energy-saving hydraulic unit achieving approximately 50% power consumption reduction, 35% electricity cost reduction, and 35% CO2 emission reduction through variable speed motor control. For machine tools and industrial equipment requiring energy-efficient hydraulic power.
• Toyopack ECO II Hydraulic Unit (トヨパックECO II) Energy-saving hydraulic unit featuring improved mechanical volumetric efficiency of variable capacity vane pumps, compact design, and reduced noise levels compared to previous models. For machine tool and general industrial applications.
• Toyopack N II Hydraulic Unit (トヨパックN II) Standard hydraulic unit with enhanced optional features including cartridge-type filtering system for running cost reduction and fluid cleanliness, compliant with top-runner IE3 efficiency regulation. For industrial hydraulic applications.
• Small Pack SP*A Ultra-Compact Hydraulic Unit (スモールパック SP*A) Ultra-compact hydraulic unit designed for clamp devices, achieving significant energy savings through intermittent motor operation and compact integration of motor, tank, pump, and solenoid valves. For space-constrained industrial applications.
• Toyopack Motion Servomotor-Driven Hydraulic System (トヨパックモーション) Servomotor-driven bidirectional pump system enabling advanced speed, position, and pressure control of hydraulic cylinders via high-response, bidirectional, high-speed pump rotation. For precision industrial motion control.
• Power Package PSA2 (パワーパッケージ PSA2) Compact, lightweight hydraulic power source integrating electric motor, hydraulic pump, relief valve, check valve, and oil tank with low power loss and built-in safety valve. For general industrial hydraulic applications.
• Home Elevator Hydraulic Unit (ホームエレベータ用油圧ユニット) Hydraulic power units for home elevators featuring smooth operation and space-saving design compared to traditional rope-type systems, with a proven safety record for passenger transport applications. For home elevator OEMs and installers.
• Vacuum Shutoff Valve for Aluminum Die-Casting (真空遮断弁) Aluminum die-casting vacuum shutoff valve with high-speed closing (7ms or less) using molten metal sensors, electric forced-closing mechanism eliminating valve clogging, and maintenance cycle exceeding 30,000 shots (up to 100,000+ shots achieved). For aluminum die-casting manufacturers.
• Press Pin Feedback Control System (Local Pressurization Device) (加圧ピンフィードバック制御システム) Aluminum die-casting technology developed jointly with Toyota Motor Corporation that measures casting conditions and provides real-time computer feedback control of press pin speed for optimal localized pressure application, minimizing defect rates from blowholes. For automotive and industrial aluminum die-casting operations.
• Defoaming Device Babukes II (消泡装置 バブケス II) Mechanical defoaming device that eliminates foam overflow by quickly dispersing floating foam on liquid surfaces using centrifugal force from an internal rotating body, eliminating the need for chemical defoaming agents. For liquid processing manufacturers in chemicals, food, coatings, plating, and water treatment.
• Custom Hydraulic System Design and Engineering Services Custom engineering service that packages pumps, motors, cylinders, and control valves into application-specific hydraulic systems, including after-sales service and hydraulic troubleshooting consultation. For industrial machinery and OEM customers with non-standard requirements.
• AT/CVT Transmission Oil Pump Gear Sets and Drive Components Manufactures and supplies AT/CVT transmission oil pump gear sets and drive components for automotive manufacturers requiring high-volume precision transmission components.

Quantifiable outcome

• HD1E ultra-low power solenoid valve achieves 30% reduction in power consumption (4.8W to 3.4W)
• +3 more outcomes

Named customers4 records

Segments4 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

One partnership is on record.

• Toyota Motor Corporation (トヨタ自動車株式会社)coreStrategic or Co-development PartnerJoint development partner for the press pin feedback control system (local pressurization device). Toyota and JTEKT Fluid Power Systems co-developed technology that measures casting conditions and controls press pin speed in real-time for optimal die-casting quality, minimizing blowhole defects.

Scale indicators1 record

Recent moves6 records

Expansion highlights5 records

Direct peers

• Atos: Italian manufacturer of hydraulic valves, proportional and servo valves, and electronic controllers. Directly comparable in directional control and proportional/servo hydraulic valves for industrial machinery.
• Bosch Rexroth: Global market leader in hydraulic and pneumatic components, systems and services. Closest direct competitor to JTEKT Fluid Power Systems across hydraulic units, valves, and motion control for industrial machinery, machine tools, and automotive applications.
• Parker Hannifin: Diversified motion and control technologies company with a major fluid power division making hydraulic pumps, valves, cylinders, and power units. Direct peer in custom hydraulic system design for industrial and automotive customers.
• Bucher Hydraulics: Swiss manufacturer of hydraulic pumps, motors, valves, and power units for mobile and industrial applications. Comparable in custom hydraulic system design and energy-efficient drive solutions.
• Hawe Hydraulik: German manufacturer specializing in hydraulic valves, pumps, and compact power units for industrial and mobile applications. Comparable in custom-engineered hydraulic packages, particularly for machine tool and press applications.
• Nachi-Fujikoshi: Japanese manufacturer of hydraulic equipment, bearings, and machine tools. Competes with JTEKT Fluid Power Systems in hydraulic components and integrated systems for industrial machinery OEMs in Japan.
• Kawasaki Heavy Industries (Hydraulic & Precision Machinery): Japanese manufacturer of hydraulic pumps, motors, and valves for construction, agricultural, and industrial machinery. Directly comparable product portfolio and end-market mix to JTEKT Fluid Power Systems, with stronger scale and global reach.
• Daikin Industries (Hydraulics): Operates a hydraulics business manufacturing hydraulic pumps, motors, and power units for machine tools and industrial machinery. Direct Japanese competitor with similar product structure and customer base.
• Moog Inc. Manufacturer of high-performance motion control products including electrohydraulic servo valves and proportional hydraulics. Comparable in the servo-hydraulic and proportional valve niche that JTEKT Fluid Power Systems serves via its Toyopack Motion and HD* series products.
• Eaton: Industrial manufacturer with a strong hydraulics business producing pumps, motors, valves and integrated hydraulic power units. Overlaps directly with JTEKT Fluid Power Systems in machine-tool and mobile-equipment hydraulic solutions.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Hokko Kogyo