株式会社ユナイト

What 株式会社ユナイト does

Unite Co., Ltd. (株式会社ユナイト) is a privately held Japanese precision plastics manufacturer founded in March 1972 and headquartered in Misato, Saitama. The company operates two factories in Misato — a headquarters facility and the Second Factory opened in October 2012 — and employs 50 people including part-time staff. Its core business is custom plastic injection molding for enterprise customers in consumer electronics manufacturing, producing light guide plates for LCD backlights (small-format through 17-inch), ultra-thin 0.6mm light guide plates co-developed with Toshiba Machine Co., Ltd., micrometer-precision polygon mirrors, notebook PC housings, and DVD player enclosures.

The company's technical platform centers on a Class 10,000 equivalent cleanroom integrated with injection molding and inspection, all-electric injection molding machines (350t and 220t) for thin-wall and precision work, and a full-process service spanning mold design, prototyping, mass production, and secondary processing (plating, vapor deposition, printing, painting, assembly) coordinated through partner factories. A documented traceability system for molding conditions and inspection records supports qualification for medical device and food-contact applications. ISO-9001 certification has been held at headquarters since April 2000.

Revenue is generated on a B2B quote-based, project-specific model via direct enterprise sales (telephone and website contact form), with no distributors or marketplace channels and pricing not publicly disclosed. The customer base is concentrated in Japanese electronics OEMs (mobile phones, digital cameras, game consoles, notebook PCs), with medical/food-container manufacturers identified as a secondary vertical leveraging the cleanroom and traceability capabilities. Geographic footprint is domestic Japan, Kanto region, with no disclosed international operations.

Name

株式会社ユナイト

Legal name

株式会社ユナイト

Website

https://unite.jp

Company type

Private

Founded year

1972

Operating status

Operating

Headcount range

1–10 employees

Short description

Unite Co., Ltd. (株式会社ユナイト) is a 50-person precision plastic injection molder in Misato, Saitama, serving Japanese consumer electronics OEMs with light guide plates, optical polygon mirrors, and cleanroom-manufactured housings, plus a growing medical/food-contact line.

Ownership category

akta.pro rank

Product category

Precision Plastic Injection Molding

NAICS

Plastics Product Manufacturing (3261), Other Plastics Product Manufacturing (32619)

SIC

Plastics Products, Nec (3089)

akta.pro primary industry

Custom Injection Molding & Contract Manufacturing (Job Shops/CMs) (IMANAFAJ)

akta.pro secondary industry

Industrial & Machinery Injection Molded Components (Gears, Wear Parts) (IMANAFAF)

Keywords

• Plastic injection molding
• Light guide plates
• Precision optical components
• Cleanroom manufacturing
• Polymer part production

Headquarters

HQ city

三郷市

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

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

Revenue model

1. Plastic Injection Molding Manufacturing: 株式会社ユナイト manufactures custom plastic injection molded parts for industrial customers, including light guide plates, optical precision components, and precision moldings. Revenue is generated through the production and sale of molded parts, with capabilities spanning mold design, prototyping, mass production, and secondary processing (plating, vapor deposition, printing, painting, assembly). Products are supplied to manufacturers of mobile phones, digital cameras, game consoles, notebook PCs, and other electronic devices.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels1 record

Core offering

株式会社ユナイト (Unite Co., Ltd.) is a B2B plastic injection molding manufacturer that designs, prototypes, and mass-produces precision plastic parts — including light guide plates, polygon mirrors, and housings for notebook computers and DVD players. Production takes place in a Class 10,000 cleanroom using all-electric injection molding machines, with secondary processing (plating, vapor deposition, printing, painting, assembly) coordinated through partner factories.

Product overview

株式会社ユナイト is a plastic manufacturing company offering a portfolio of optical precision products and injection molding services. Core products include light guide plates (導光板) for LCD backlight applications in sizes from mobile phones to 17-inch notebooks, ultra-thin light guide plates (0.6mm thickness) developed with Toshiba Machine, and polygon mirrors achieving μm-level precision. Additional products include notebook computer housings and DVD players. The company provides integrated injection molding services encompassing mold design, prototyping, mass production, and secondary processing (plating, vapor deposition, printing, painting, assembly). Manufacturing is supported by a Class 10,000 cleanroom facility with electric injection molding machines.

Differentiator

Problem solved

Functional benefit

Products and services

• Various Light Guide Plates (各種導光板) Plastic light guide plates used in LCD backlight units for mobile phones, digital cameras, game consoles, and notebook computers, manufactured in a range of sizes from small to 17-inch.
• Ultra-Thin Light Guide Plate (超薄肉導光板)
• Polygon Mirrors (ポリゴンミラー)
• Notebook Computer Housings (ノートパソコン筐体)
• DVD Player Housings (DVDプレイヤー筐体)
• Integrated Injection Molding Production Service (射出成形品の一貫生産)

Quantifiable outcome

• Micrometer (μm) level flatness precision achieved for polygon mirror成形品
• +1 more outcomes

Named customers1 record

Segments2 records

Ideal customer profiles2 records

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.

• 東芝機械株式会社 (Toshiba Machine Co., Ltd.)coreStrategic or Co-development Partner株式会社ユナイト co-developed an ultra-thin light guide plate (15-inch, 0.6mm thickness) with Toshiba Machine Co., Ltd. This co-development partnership demonstrates the company's technical capabilities in precision optical components and serves as a reference for their engineering competence in ultra-thin wall injection molding.

Scale indicators4 records

Recent moves10 records

Expansion highlights4 records

Broad incumbents

• Maruwa Co., Ltd. Japanese manufacturer of electronic ceramics and plastic components serving semiconductor, electronics, and communications customers. Comparable as a Japanese specialty plastics/ceramics supplier serving high-tech electronics customers, though with broader materials scope.
• Sumitomo Bakelite Co., Ltd. Japanese manufacturer of plastics, phenolic resins, and semiconductor packaging materials serving electronics and industrial markets. Comparable as a long-tenured Japanese plastics specialist, though with stronger focus on raw materials and packaging rather than finished molded parts.
• Inoac Corporation: Established Japanese manufacturer of plastic and rubber molded products for automotive, electronics, and consumer applications. Comparable as a long-tenured Japanese plastics molder serving enterprise customers, but with broader product and material coverage.
• Nifco Inc. Large Japanese plastic molded parts manufacturer serving automotive, consumer electronics, and industrial customers. Comparable as a domestic Japanese contract injection molder serving electronics OEMs, but operates at much greater scale with a broader customer and product portfolio.
• Flex Ltd. Global contract manufacturer with precision plastic molding, cleanroom capabilities, and end-to-end product realization. Comparable on cleanroom injection molding for electronics OEMs, but as a diversified global EMS rather than a focused specialty molder.
• Jabil Inc. Global contract manufacturer offering plastics injection molding, cleanroom assembly, and full EMS services. Comparable to Unite's precision injection molding and cleanroom capabilities, but at vastly greater scale and as part of integrated electronics manufacturing services.
• Asahi Kasei Corporation: Major Japanese diversified materials and chemicals company with significant plastics product manufacturing serving electronics, automotive, and medical customers. Comparable on plastics manufacturing for Japanese enterprise customers, though operating at conglomerate scale with much broader portfolio.

Direct peers

• Polymatech Japan Co., Ltd. Japanese precision plastic component manufacturer specializing in optical and electronic-grade parts. Closely comparable to Unite in scale, product focus (precision optical/electronic plastics), and Japanese contract manufacturing business model.

Regional players

• Hayashi Telempu Co., Ltd. Japanese plastics and rubber product manufacturer serving automotive interior, electronic, and industrial customers. Comparable as a domestic Japanese custom plastics molder, though with stronger automotive interior emphasis.
• F-Tech Inc. Japanese manufacturer of plastic molded parts primarily for automotive and industrial customers. Comparable as a regional plastics molder serving Japanese OEMs, though F-Tech skews more heavily toward automotive than Unite's electronics/optics focus.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/%E6%A0%AA%E5%BC%8F%E4%BC%9A%E7%A4%BE%E3%83%A6%E3%83%8A%E3%82%A4%E3%83%88

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

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 株式会社ユナイト