CITIZEN FINEDEVICE is engaged in the manufacture and sales of precise metal machined components for automobiles, quartz devices and related components, ceramic components, ferroelectric liquid crystal display devices, combustion pressure sensors, measuring devices and motors, and develops products in a diverse range of business areas. What supports these products is our unique core technologies that we have built up over the years ; precise metal part machining technology, thin-film technology, brittle material machining technology, assembly technology and sealing technology. In addition, we use manufacturing equipment developed in house in order to maintain our unique value.
Crystal Devices
Thinner, smaller and higher precision!Product management through integrated manufacturing
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Precision Measuring Instruments
Pursuing durability and functionality Craftsmanship that continues to be used throughout the world
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Thin-film Submount
High demand submount , we meet customer demands promptly by providing our wide range of knowledge and technologies.
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MEMS
Highly accurate measurement of minute liquids using MEMS technology and functional thin film technology! Control!
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Magnets
We can produce high quality miniature magnets smaller than φ2mm in size, with our advanced brittle material machining technology.
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Aluminaruby
Aluminaruby, our core technology, has been supporting CITIZEN brand watch. We achieve consistent high-quality production from materials to processing
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Ceramic parts, bearings
Ceramic products are receiving increased attention in these years as a replacement for metal materials. We have been developing miniature bearings which have achieved miniaturization status, high speed rotation, high precision, and noise reduction.
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Ferroelectric LCDs
Ultra-compact / high-definition ferroelectric LCDs
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Combustion Pressure Sensor
Directly measuring combustion pressure inside cylinders Helps optimize combustion in engines
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Compact Automotive Components
High accuracy × mass production achieved through integrated production Precision machining technology honed by machining watch components
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TECHNOLOGY
What supports products of CITIZEN DEVICE is our unique core technologies that we have built up over the years for precise metal part machining technology, thin-film technology, brittle material machining technology, assembly technology, and sealing technology. We apply these core technologies to high value-added products and meet a wide range of needs in the electronic components and medical, bio, clock fields.
Microfabrication for Super Precision
Etching（Crystal）
Photolithography
MEMS
Machining
Turning
Grinding
Plastic press processing
Electric Discharge Machining
Cutting off
Lapping and Polishing
Molding
Extrusion
CIP
Press
Surface Treatment
Plating
Blasting
Chemical polishing
Barrel polishing
Heat Treatment
Sintering of Ceramics
Metal Heat Treatment
Thin Films
Optical thin film
Electrode film
Water-repellent / hydrophobic film
Magnetic film
Solder film
Junctions
Implementation
Sealing
