Contract Coating Service

Gas phase technologies

We offer a variety of methods for both vacuum and atmospheric pressure.
Organic and inorganic (metals, compounds, oxides, nitrides) films can be formed with a thickness of 1 nm to 10 µm with high quality and precision.

Low temperature (room temperature) DLC coating & Low temperature (room temperature) ALD coating. Leave it to us to provide surface treatment coatings such as decorative coatings, surface modification, quality improvement, and long life using electrochromism.

High frequency plasma generates hydrogen ions, which are attracted to the substrate by DC high voltage pulses and react with the raw material gas (CxHy) on the substrate surface, enabling high quality DLC deposition with good adhesion at low temperatures.

The plasma excitation of reduction/oxidation gases enables high-quality deposition at low temperatures, which is said to be difficult in ALD.

Using electrochromism, it is possible to deposit decorative films with variable luminescence color (i.e., change the color to the user’s favorite color) not only on materials and components but also on consumer products.

Introduction of
low-temperature DLC and low-temperature ALD

Coating films generated by high-frequency plasma and DC high-voltage pulses are currently being rapidly adopted in the hard disk industry, precision mold industry, copy machine and automobile industries, and are expected to expand into the field of coating optical components and resin materials in the future.

High frequency excited DLC low temperature deposition

Continuous control of film quality from graphite to DLC.

・Diamond-like properties (transparent, high hardness, and insulating properties) to graphite-like properties (black, soft, and conductive properties) can be controlled, making it possible to form a film that meets your needs!

Transparent DLC film with high light transmittance.

・The colorless and transparent DLC film does not affect the appearance of the product. For example, in the medical field, it strengthens ceramic materials such as dental implants, and in the beverage field, it prevents quality deterioration of PET bottles and glass bottles. The coating can be applied with high functionality and high adhesion without affecting the design of the product.

Film can be deposited regardless of workpiece shape and material.

・No heating source allows for low-temperature coating.
・No restriction on the installation direction of the workpiece.

Ultra-precision, ultra-high accuracy, and long life!

・DLC can be applied at low temperatures (room temperature) and in a thin film, so there is no need to worry about thermal expansion, deformation, or coating thickness on ultra-precision molds. Coating with high performance and high adhesion is possible without affecting complex shapes.

Effect of low-temperature DLC coating

Electrode/electrode protection material
(graphite film)

Improvement of high coating and high conductivity of collecting electrode for Li battery. Thin and soft films can be applied on thin, flexible and porous materials without impairing the function of the product. The electrical conductivity is greatly improved due to the high conductivity characteristic of graphite.

Mold release film
for molds
(DLC film)

Improving high mold release and adhesion. Especially for adhesive resins, it has excellent mold release effect and prevents reattachment.
Effective for better molding, increasing productivity, and reducing maintenance work.

Abrasion resistant coating
(DLC film)

Durability is improved by DLC deposition on automotive parts such as engines and suspensions, metal parts, and medical supplies.

Low friction coating
(Graphite film)

Film formation on films and plastic products to provide friction reduction effects and structural reinforcement.

Low temperature ALD deposition

Application to resin products in the medical field.

・High adhesion SiO2 film can be applied on catheters, syringes, etc. (anti-coagulation film).
・High adhesion TiO2 film on implants (cell adhesion film) is possible.
・Sulfurization inhibiting Nb3O5 film (corrosion inhibiting film) can be applied on the Ag mirror surface of endoscopes.

Application to magnetic materials and battery powders.

・Protective film can be formed on powders as small as 10nm.
・Uniform film formation is possible with the barrel function.

Effect of low-temperature ALD coating

Gas barrier film for resin
(SiO2, Al2O3)

・Alcoholic beverage encapsulation: Lighter weight and longer life for beer and wine
・Pharmaceutical and cosmetic packaging: Cost reduction of containers, possibility of acid-alkali packaging

Functional membrane
for medical use
(SiO2, TiO2)

・Resin catheters and syringes: Anti-coagulant membrane inhibits coagulation of proteins (blood, etc.) due to microstructure of resin.
・Dental implants: cell adhesion membrane increases durability and improves cell retention.
・Ag mirror surface in endoscope: Corrosion inhibitor film protects against sulfur components

Protective film for electrolyte
of all-solid-state battery

・Sulfide system: inhibits H2S generation by forming a protective film on the powder.
・Oxide system: Improvement of electrolyte crystallinity during sintering.
・Addition of functions to positive and negative electrodes.

Protective film
for magnetic materials

・Motor cores: Anti-oxidation
・Inductor cores: increase in magnetic permeability

Introduction of
decorative film and changeable color film deposition


Electrochromism technology enables light control and color change.

・Electromic materials that change color by electrochemical redox.
・Next-generation display devices based on electrochromism.
・Various color changes are possible.

Propose a new lifestyle.

・Color and design changes for fashion and interior accessories such as nail tips and bags.
・Functions such as dimming and shading of glass surfaces and anti-glare mirrors for cars.
・Color and design changes can be made easily at home.

Effects of decorative and color changeable film coatings

Color changeable film

Electrochromic technology is used to create devices that can change the color of small fashion items such as nail tips and bags, small household items such as bottles and bags, and small interior items.

Metallic luster film

・This technology enables the formation of highly adhesive films with vivid colors and gradations on three-dimensional objects and resin surfaces.

FAQ - Frequently Asked Questions -

What kind of films and film types can be formed?

We are capable of depositing not only general metal and alloy films, but also various oxide and nitride films such as reflective, light-shielding, and transparent electrodes.
We also specialize in “carbon films” such as DLC (Diamond-Like Carbon) and graphite, and can provide highly functional films such as high hardness, low friction coefficient, high mold release, and abrasion resistance to meet customer needs.

What kind of workpieces (materials) can be applied on?

Mainly the following base materials can be used.
“Resin, film, and other materials that are sensitive to high temperatures can be coated at low temperatures without losing the performance of the material.
“It is possible to form a film on metal, glass, etc. with uniformity and high adhesiveness.
“It is possible to form a thin, uniform film on various particle diameters and shapes, such as powders and ultra-small parts.

What are the main applications for film formation?

We are capable of general film formation, but are also good at the following cutting-edge fields.
“Also able to provide highly functional films for new materials and new energy fields such as all-individual batteries, lithium-ion batteries, and fuel cells.
“We can provide biocompatible films and gas barriers for medical devices such as medical resin catheters, vials, and implants.

What thickness of film is possible?

“It is possible to form dense, homogeneous and uniform ultra-thin films even at 1nm (nano).
If it is a powder, uniform coating to φ100nm is also possible.
As for the film thickness, we can propose a coating method that meets your needs.

Please let us know the lot number for contract coating.

We are capable of handling small lots to mass production.
We can help you reduce equipment installation costs and make prototypes for research and development.
Our engineers, who are well versed in coating technology, will propose coating methods, selection and adjustment of film types, so please feel free to contact us with your requests.

What if the FAQ doesn't help?

In many cases, we can provide advice and support for any content. Please feel free to contact us first.

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