Midori Precisions

What Midori Precisions does

Midori Precisions (株式会社緑測器) is a Japanese manufacturer of precision position and angle sensors, founded in 1952 and headquartered in Hamura, Tokyo. The company designs and produces contact and contactless rotary potentiometers (CP series, ranging from φ16mm to φ66mm with linearity from ±0.05%FS to ±3%FS), linear potentiometers (LP series), multi-axis tilt and inclinometer sensors (THD, PMP, ESC, WR series), and optical and magnetic rotary encoders (CE series, IncOder). Its products are specified into construction machinery, industrial vehicles, marine vessels, instrumentation, medical and welfare equipment, civil engineering and infrastructure monitoring, and aerospace applications including satellite and rocket attitude control. The company also produces dial indicators and ratiometers (D/PA series) for measurement display. Technology differentiation is anchored in proprietary potentiometer and encoder designs delivering precision down to ±0.05%FS absolute linearity (CPP-60, CE36M), multi-turn and 2-axis variants, and IP-rated (water-drip proof, dust-resistant) packaging for harsh industrial environments, supported by ISO 9001 certification.

The company operates a B2B sales-led model. In Japan it runs direct sales through its Tokyo headquarters/East Japan Sales Office and West Japan Sales Office in Osaka; internationally it sells through a network of authorized distributors spanning the Americas (Artron America), Europe (Angst+Pfister Sensors and Power AG), China/Hong Kong (TOMY Industrial), Korea (Dongyang Electric), Taiwan (San Lien Technology), Australia (ADM Instrument Engineering), and South Africa (TILT-TECH), covering 14 countries. Pricing is quote-based, varies by accuracy, size, environmental rating, and customization, with payment via credit card or bank transfer. The company offers small-lot custom production for OEM-specific requirements. Midori Precisions is a wholly-owned member of the Nidec Components Group (a subsidiary of Nidec Corporation), with the current President and Representative Director (Hitoshi Ohira, appointed 2026-06-23) dispatched from Nidec Copal Electronics, reflecting close operational alignment with the parent conglomerate.

Name

Midori Precisions

Legal name

株式会社緑測器

Website

https://midori.co.jp

Company type

Private

Founded year

1952

Operating status

Operating

Short description

Midori Precisions is a Japanese manufacturer of precision position and angle sensors — contact and contactless potentiometers, rotary encoders, and tilt sensors — serving industrial OEMs in construction machinery, marine, medical, aerospace, and civil engineering applications, distributed globally and operating within the Nidec Components Group.

Ownership category

akta.pro rank

Product category

Industrial Sensors and Precision Instrumentation

NAICS

Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513), Navigational, Measuring, Electromedical, and Control Instruments Manufacturing (33451)

SIC

Industrial Instruments For Measurement, Display, And Control (3823), Electronic Components & Accessories (3670)

akta.pro primary industry

Inertial & Motion Sensors (Accelerometers/Gyroscopes/IMUs) (HDAHALAA)

akta.pro secondary industry

Machine Vision & Optical Sensing (Cameras, 3D vision, LiDAR, illumination) (IMAGAFAB)

Keywords

• Precision position sensors
• Potentiometers and encoders
• Industrial angle sensors
• Tilt and inclination sensors
• Linear displacement sensors

Headquarters

HQ city

Hamura

HQ country

Japan

HQ region

Asia

Offices3 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Sensor Hardware Sales: Direct sales of position and angle sensors including potentiometers, encoders, and tilt sensors. Products sold per-unit with pricing based on specifications, accuracy requirements, and environmental ratings.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Midori Precisions manufactures and sells precision position and angle sensors, including contact and non-contact rotary potentiometers, linear potentiometers, tilt/inclinometer sensors, and optical and magnetic rotary encoders. The products are produced in sizes ranging from Ø16mm to Ø66mm with linearity from ±0.05%FS to ±3%FS, and are sold to industrial equipment manufacturers across construction machinery, marine, medical, aerospace, and civil engineering sectors. The company also produces dial indicators and ratiometers for measurement display.

Product overview

Midori Precisions is a manufacturer of position sensors with a 70+ year history, specializing in potentiometers, encoders, and measuring instruments. The product portfolio centers on contact and contactless rotary potentiometers (CP series), linear potentiometers (LP series), tilt/inclinometer sensors (PMP, THD, ESC, WR series), and optical/magnetic rotary encoders (CE series). The company offers precision sensors ranging from compact 16mm units to 66mm models with accuracy from ±0.05%FS to ±3%FS. Additional offerings include dial indicators and ratiometers for industrial measurement display. Applications span construction machinery, industrial vehicles, marine equipment, instrumentation, medical/welfare equipment, civil engineering, and aerospace sectors. Midori Precisions is a member of the Nidec Components Group, established in 1952.

Differentiator

Problem solved

Functional benefit

Products and services

• CP Series Rotary Potentiometers (Contact Type) Contact-type rotary potentiometers for angle measurement, available in sizes from Ø16mm to Ø66mm with accuracy ranging from ±0.05%FS to ±3%FS, intended for industrial equipment manufacturers.
• Non-contact Rotary Potentiometers (CP Series) Non-contact angle sensors using magnetic technology with precision up to ±0.2%FS absolute linearity, offering durability and water-drip proof variants for industrial applications.
• Linear Potentiometers (LP Series) Linear displacement sensors using potentiometer technology for measuring linear position, including small form factors and water-drip proof variants.
• Tilt Angle Sensors (PMP/THD/ESC/WR Series) Inclinometers and tilt angle sensors for detecting inclination, including 2-axis models with various accuracy levels and environmental protection ratings.
• Rotary Encoders (CE/IncOder Series) Optical and magnetic rotary encoders for precise angle measurement and position detection, with high accuracy and environmental resistance.
• Dials and Ratiometers (D/PA Series) Panel meters and ratio indicators for displaying measurement values, including dial indicators and signal converters.
• CE32R Series Optical Incremental Rotary Encoder Optical incremental rotary encoder featuring small hollow shaft design, high resolution, and vibration/shock resistance for industrial applications.
• CE58M Series Magnetic Rotary Encoder Magnetic rotary encoder with 58mm hollow shaft design for industrial applications.
• CExxR Series Optical Rotary Encoder Optical rotary encoder series designed for industrial applications, providing precise angular measurement.
• THD40xx Series Tilt Angle Sensor Tilt angle sensor with ratio output combining environmental resistance and cost efficiency, featuring 2-axis detection.

Named customers7 records

Segments4 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

One partnership is on record.

• Nidec Components (ニデックコンポンツ)coreStrategic or Co-development PartnerMidori Precisions is a member of the Nidec Components Group (Nidec Components Co., Ltd.), a subsidiary of Nidec Corporation. This affiliation provides access to Nidec's global resources, manufacturing capabilities, and corporate stability while maintaining Midori's specialized sensor technology expertise.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Novotechnik: German specialist manufacturer of contactless and contact angle sensors, linear position sensors, and rotary encoders — directly comparable to Midori in product type, precision class, and industrial OEM customer base.
• Megatron Elektronik: German precision potentiometer and encoder manufacturer serving industrial, medical, and aerospace customers; closely overlaps with Midori's contact/non-contact angle sensor portfolio.
• Contelec AG: Swiss manufacturer of angle sensors and potentiometers for harsh-environment industrial and mobile equipment applications; a direct competitor in precision contactless angle sensing.
• Bourns, Inc. US-headquartered manufacturer of precision potentiometers, encoders, and resistive position sensors; competes with Midori in precision contact and non-contact position sensing for industrial markets.
• ALPS Alpine: Japanese competitor in encoders, potentiometers, and tactile/position sensing components; directly comparable product categories and overlapping Japanese industrial customer base.
• TT Electronics: UK-based manufacturer of precision sensors including position and angle sensors for industrial, aerospace, and medical markets; overlaps with Midori's harsh-environment positioning.

Broad incumbents

• TE Connectivity: Global sensor and connector giant with a broad portfolio that includes position and angle sensors; competes with Midori at the OEM level but as one of many product lines rather than a specialist.
• Honeywell International: Diversified industrial conglomerate with a sizable sensors business (position, pressure, inertial); overlaps with Midori in aerospace and industrial sensing but does not specialize in potentiometers.
• Vishay Intertechnology: Major discrete semiconductor and passive component manufacturer; its resistive products and sensors portfolio competes with Midori's potentiometer line as part of a much broader catalog.

Emerging players

• ams-OSRAM: Semiconductor sensor specialist whose MEMS-based position, angle, and time-of-flight sensors increasingly compete with Midori's traditional potentiometers in newer OEM designs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/midori

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

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 Midori Precisions