Midori
Midori Precisions (株式会社緑測器) is a Japanese manufacturer founded in 1952 specializing in precision position sensors — potentiometers, optical and magnetic encoders, and tilt sensors — sold globally to industrial OEMs in construction, marine, medical, aerospace, semiconductor, and civil engineering markets.
- Company typePrivate
- Founded1952
- Headquarters羽村市 (Hamura City), Japan
- Headcount11–50
- GTM typeB2B
- OfferingHardware or Manufacturing
What Midori does
Midori Precisions (株式会社緑測器) is a Japanese specialist manufacturer of precision position sensors, founded in 1952 and headquartered in Hamura City, Tokyo. Its product portfolio spans rotary, linear, and tilt/inclinometer potentiometers (in both contact and contactless/magnetic variants), optical and magnetic rotary and linear encoders, and dial/ratiometer measuring instruments. Core technologies include proprietary contactless magnetic angle sensing, reflective optical detection for encoders, multi-turn angle detection, and dual-axis tilt measurement, with precision levels reaching ±0.05% FS in high-end potentiometer models (CPP-60 series) and resolutions up to 144,000 P/R with 2 MHz response frequency in the CExxR encoder series. Products range in size from ultra-compact Φ16mm sensors to Φ66mm units, with waterproof, vibration-resistant, and multi-turn options serving demanding environments.
The company operates as a member of the Nidec Components Group and reaches global customers through a multi-channel model: a domestic dealer network covering Hokkaido, Tohoku, Kanto, Kansai, and Chugoku/Shikoku regions; an international distributor network spanning the Americas, Europe (Switzerland, Finland, Sweden), China, Hong Kong, India, Korea, Taiwan, South Africa, and Australia; and a direct e-commerce online shop for catalog purchases. End markets are diverse and include construction machinery, industrial vehicles, marine equipment, instrumentation, medical and welfare devices, aerospace (rockets, satellites, aircraft), civil engineering and infrastructure monitoring, semiconductor manufacturing equipment, and precision/general machinery. Revenue is generated through one-time sales of sensor units (catalog and custom/small-batch), with prices disclosed per product page; custom orders are supported directly.
The business is privately held with no public listing or disclosed revenue. Midori employs approximately 24 people according to firmographics (a figure that appears low relative to operational scope, including East Japan and West Japan sales offices plus a global distributor network) and continues to invest in product line extensions, most recently launching new optical encoder families in 2022 and 2024. A Representative Director transition was announced on 2026-06-23, with the incoming president dispatched from Nidec Copal Electronics, reinforcing the subsidiary's integration within the Nidec Components Group.
Midori firmographics
Firmographics- Name
- Midori
- Legal name
- 株式会社緑測器
- Website
- https://midori.co.jp
- Company type
- Private
- Founded year
- 1952
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Midori Precisions (株式会社緑測器) is a Japanese manufacturer founded in 1952 specializing in precision position sensors — potentiometers, optical and magnetic encoders, and tilt sensors — sold globally to industrial OEMs in construction, marine, medical, aerospace, semiconductor, and civil engineering markets.
- Ownership category
- akta.pro rank
Midori industry classification
Industry- Product category
- Precision Position Sensors
- NAICS
- Other Measuring and Controlling Device Manufacturing (334519), Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables (334513)
- SIC
- Industrial Instruments For Measurement, Display, And Control (3823)
- akta.pro primary industry
- Industrial-Grade Sensors & Transducer Components (Discrete sensing elements, transducers, MEMS sensors) (IMAGAJAO)
- akta.pro secondary industries
- Machine Vision & Optical Sensing (Cameras, 3D vision, LiDAR, illumination) (IMAGAFAB), Inertial & Motion Sensors (Accelerometers/Gyroscopes/IMUs) (HDAHALAA)
Keywords
Where Midori is headquartered
LocationHeadquarters
- HQ city
- 羽村市 (Hamura City)
- HQ country
- Japan
- HQ region
- Asia
Offices3 records
Markets served
Midori business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Technology or R&D, Operations, Marketing or Sales
Revenue model
- Sensor Product Sales: Primary revenue from manufacturing and selling position sensors (potentiometers, encoders, tilt sensors) and measuring instruments/dials. Products are sold through a network of domestic dealers, international distributors, and direct online shop. Both standard catalog products and custom/small-quantity products are offered.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Standard product catalog pricing listed per product page |
Go-to-market motion2 records
Distribution channels3 records
Marketing channels4 records
Midori product offering
Product offeringCore offering
Midori manufactures and sells precision position sensors, including rotary potentiometers (contact and non-contact/magnetic types), linear potentiometers, dual-axis tilt/inclinometer sensors, optical and magnetic rotary and linear encoders, and dial indicators/ratiometers. Products are offered in standard catalog configurations and custom/small-quantity variations, with outer diameters from ø16mm to ø66mm and precision from ±3%FS to ±0.05%FS, serving industrial equipment manufacturers in construction, marine, medical, aerospace, semiconductor, and precision machinery sectors.
Product overview
Midori Precisions is a manufacturer of precision sensors, primarily offering a unified portfolio of potentiometers, encoders, and measuring instruments. The product line includes: (1) Potentiometers—available in rotary (contact and non-contact/magnetic types from φ16mm to φ66mm), linear displacement sensors, and tilt/inclinometer sensors with dual-axis detection; (2) Encoders—optical and magnetic rotary and linear encoders featuring hollow shaft designs and high resolution up to 144,000 P/R; (3) Dials and Ratiometers for measurement display. These sensors are used across industrial applications including construction machinery, industrial vehicles, marine equipment, medical devices, aerospace, and civil engineering. The company is part of the Nidec Components Group and has been in operation since 1952.
Differentiator
Problem solved
Functional benefit
Products and services
- CP-45F Series Potentiometer
- CP-2FL Series Potentiometer
- CP36U Series Potentiometer
- CP-1HX Series Potentiometer
- THD4000Z Series Tilt Angle Sensor
- CE32R Series Optical Incremental Rotary Encoder
- CExxR Series Optical Rotary Encoder
- Rotary Potentiometers (Contact and Non-Contact)
- Linear Potentiometers
- Tilt Angle Potentiometers
- Rotary Encoders
- Linear Encoders
- Dial Indicators and Ratiometers
Quantifiable outcome
- Precision levels up to ±0.05% FS achieved in CPP-60 series
- +2 more outcomes
Companies that use Midori
Customer profileNamed customers9 records
Segments3 records
Ideal customer profiles2 records
Midori technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Midori partnerships and signals
Strategic signalPartnerships
Nine partnerships are on record, tiered core and minor.
- Nidec Components (ニデック componeンツ株式会社)coreMidori Precisions is a member company of the Nidec Components Group (ニデック componeンツグループ). As part of the Nidec Components group, Midori operates under the umbrella of Nidec, a major Japanese multinational corporation specializing in motors and electronic components. The company is positioned as 'a Nidec Components Group company' on its corporate materials.
- Artron America, Inc.minorAuthorized distributor for Midori products covering USA, Canada, and South America. Contact: +1-281-313-8811. Operates an online shop at artronamerica-shop.com.
- Angst+Pfister Sensors and Power AGminorAuthorized distributor for Midori products covering the European region. Contact: +41 44 877 35 25. Email: [email protected].
- TOMY Industrial Co., Ltd.minorAuthorized distributor for Midori products covering China and Hong Kong. Contact: +852-2765-6486 (Hong Kong), +86-755-8236-2956 (China).
- DongYang Electric Ind. Co., LtdminorAuthorized distributor for Midori products covering Korea. Contact: +82-2-716-6737. Email: [email protected].
- San Lien Technology Corp.minorAuthorized distributor for Midori products covering Taiwan. Contact: +886-2-2708-1730. Email: [email protected].
- ADM Instrument EngineeringminorAuthorized distributor for Midori products covering Australia. Contact: +61-3-9580-1788. Email: [email protected].
- Inaba Denki Sangyo Co., Ltd. (因幡電機産業株式会社)minorNational-level domestic dealer covering all of Japan. Website: inaba.co.jp.
- Nichiden Corporation (株式会社日伝)minorNational-level domestic dealer covering all of Japan. Website: nichiden.com.
Scale indicators2 records
Recent moves5 records
Expansion highlights5 records
Midori competitors and assessment
Company assessmentBroad incumbents
- SICK AG: German industrial sensor manufacturer with a broad portfolio including encoders, tilt sensors, and position sensors. Larger incumbent serving factory automation, automotive, and process industries with overlapping product categories.
- Renishaw: UK-based global metrology and encoder manufacturer with a broad portfolio of optical encoders and position measurement systems. Larger incumbent with overlapping encoder technology for industrial and scientific applications.
- TE Connectivity: Global manufacturer of sensors and connectors with a position sensor portfolio including rotary and linear position sensors. Larger incumbent with broader product range and stronger global OEM relationships.
- Honeywell Sensing & Safety: Division of Honeywell producing position sensors, encoders, and tilt sensors for industrial, aerospace, and medical applications. Overlapping customer base in aerospace and industrial verticals with broader portfolio.
- Panasonic Industrial Devices: Division of Panasonic manufacturing sensors including position sensors, encoders, and inertial sensors. Larger incumbent with broader product portfolio serving industrial automation and automotive markets.
Direct peers
- HEIDENHAIN: German manufacturer of high-precision linear and angle measurement encoders, including rotary encoders and angle encoders for industrial and machine tool applications. HEIDENHAIN is a direct competitor in optical and magnetic encoders serving similar industrial OEMs.
- Bourns: US-based manufacturer of precision potentiometers, encoders, and position sensors. Bourns is a direct competitor in rotary and linear potentiometers serving industrial, automotive, and consumer applications.
- ALPS Alpine: Japanese manufacturer of potentiometers, sensors, and switches. ALPS Alpine directly competes with Midori in rotary potentiometers and position sensors, particularly in Japanese consumer electronics and automotive markets.
- Vishay Precision Group: Manufacturer of precision sensors, including position sensors, encoders, and weighing/force measurement devices. Overlapping product portfolio in precision potentiometers and resistive position sensing technologies.
- Novotechnik: German manufacturer of precision angle and linear position sensors, including contactless potentiometers and rotary encoders. Novotechnik is a direct competitor in non-contact rotary position sensors serving industrial, automotive, and medical markets.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
Midori social profiles
Digital presenceMidori financial estimates
Financial estimateRevenue estimate
Valuation estimate
Midori leadership team
Management profileNumber of profiles
Profiles1 record
Midori funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Midori M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Midori
What does Midori do?
Midori manufactures and sells precision position sensors, including rotary potentiometers (contact and non-contact/magnetic types), linear potentiometers, dual-axis tilt/inclinometer sensors, optical and magnetic rotary and linear encoders, and dial indicators/ratiometers. Products are offered in standard catalog configurations and custom/small-quantity variations, with outer diameters from ø16mm to ø66mm and precision from ±3%FS to ±0.05%FS, serving industrial equipment manufacturers in construction, marine, medical, aerospace, semiconductor, and precision machinery sectors.
Is Midori a public or private company?
Midori is a private company. It is classified as corporate owned and is currently operating.
When was Midori founded?
Midori was founded in 1952. It employs 11 to 50 people.
Where is Midori based?
Midori is headquartered in 羽村市 (Hamura City), Japan, in the Asia region.
How does Midori make money?
One revenue line is on record: sensor Product Sales.
Who are Midori's main competitors?
Broad incumbents on record are SICK AG, Renishaw, TE Connectivity, Honeywell Sensing & Safety and Panasonic Industrial Devices. Direct peers are HEIDENHAIN, Bourns, ALPS Alpine, Vishay Precision Group and Novotechnik.
Does Midori have an API?
No public API is recorded for Midori.
What industry is Midori in?
Midori's product category is Precision Position Sensors. Its primary akta.pro industry code is IMAGAJAO, Industrial-Grade Sensors & Transducer Components (Discrete sensing elements, transducers, MEMS sensors), with a secondary code of IMAGAFAB, Machine Vision & Optical Sensing (Cameras, 3D vision, LiDAR, illumination). Its NAICS code is 334519 and its SIC code is 3823.