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filter Product List and Ranking from 878 Manufacturers, Suppliers and Companies

Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.

filter Manufacturer, Suppliers and Company Rankings

Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.

  1. 日本ドナルドソン Tokyo//Industrial Machinery
  2. industria Saitama//Industrial Machinery
  3. 富士フィルター工業 本社 Tokyo//others
  4. 4 日本コベッタ Osaka//Electronic Components and Semiconductors
  5. 5 アドバンテック東洋 Tokyo//Testing, Analysis and Measurement
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Last Updated： Aggregation Period:Oct 22, 2025～Nov 18, 2025
This ranking is based on the number of page views on our site.

  1. The vaporization deodorization device "Sō" uses a unique deodorization method that completely vaporizes the deodorizing liquid.
  2. Sand flow filter "Movable upward flow continuous sand filter" 日本インカ
  3. Fuji Plate 富士フィルター工業 本社
  4. 4 Elementless Filter "FILSTAR eco" industria
  5. 5 Domnic Hunter Low Pressure Loss High Performance Air Filter

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Etching filter [Ideal for preventing foreign matter contamination as it does not open!]

Etching filter [Ideal for preventing foreign matter contamination as it does not open!]

The perfect etching filter for preventing foreign matter contamination! It does not open up, is less likely to break and become foreign matter, and there is no overlapping of wires, so foreign matter cannot get caught!

The "Etching Filter" is a filter made using a photochemical etching method that has high strength and is less likely to become a foreign object due to disconnection. Compared to conventional woven filters, it has 370% greater strength and 50% better elongation. Since there are no overlaps in the woven lines, it prevents foreign objects from getting caught and excels in hygiene. It is also possible to select materials with excellent corrosion resistance, and free design is available for thickness, outer shape, and mesh size. 【Features】 ■ Does not allow for opening (foreign object contamination prevention) ■ Less likely to become a foreign object due to disconnection (foreign object contamination prevention) ■ Capable of creating fine shapes (foreign object contamination prevention) ■ No overlaps in lines, preventing foreign objects from getting caught (hygiene management) ■ No fraying at the outer edge (improved productivity) *For details, please request materials or view the PDF data from the download.

  • filter

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Etching process

Etching process

A technique born from the application of precision photography and photo corrosion methods! An ideal processing method for ultra-small, ultra-thin, and complex-shaped products.

"Etching processing" involves applying corrosion protection treatment through masking, followed by the removal of unnecessary parts using a corrosive solution. This processing method is suitable for ultra-precision requirements that cannot be achieved with press punching, allowing for the production of extremely small, thin, and complex-shaped products. Additionally, "photo etching processing" is a precision processing technology that combines etching processing techniques with precise photographic and imaging technologies. Through the application of precision photography and corrosion processing, it demonstrates high processing accuracy for extremely small parts, ultra-thin products, and complex components in electronics products. [Processing Steps (Excerpt)] ■ Pattern Drawing ■ Pre-treatment (Surface Smoothing, Degreasing) ■ Resist ■ Exposure *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract
  • Etching Equipment

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[Processing Example] Etching Process for Power Devices

[Processing Example] Etching Process for Power Devices

In addition to printed resist, we are implementing innovations using the photo-etching process!

We are performing etching processing on materials that consist of 1.0mm thick copper (Cu) bonded with glass epoxy resin from one side. Hirai Precision Industry has a track record of processing up to 2.0mm thick copper. While copper (Cu) is the mainstream material, aluminum (AL) is also possible. For the insulating layer, we have experience with materials other than glass epoxy resin, including ceramics (aluminum nitride substrates, silicon nitride substrates, etc.), polyimide, and PET film. We often receive materials supplied by customers for etching processing. 【About Etching Processing】 - In addition to printed resist, we employ a photo-etching process for improvements. - This allows for finer finishes and enhanced linearity. - The dimensions of the tapered section of the cross-section can be kept to less than half the thickness of the plate. *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract

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[Processing Example] Etching Processing - Thickness Adjustment of Material - Reducing Plate Thickness

[Processing Example] Etching Processing - Thickness Adjustment of Material - Reducing Plate Thickness

Short delivery response! By applying etching solution to the entire surface of the metal plate and causing corrosion, the thickness of the metal can be adjusted.

A rich lineup of metal materials (including variations in thickness) is one of the advantages of Hirai Precision Industry. We have established a system to meet various needs, and by utilizing our etching processing technology, we can customize the thickness of the base material freely. Thickness adjustment through etching processing can be done at a lower cost compared to creating the base material from scratch. **Advantages of thickness adjustment processing with etching solution:** - **Cost-effective production:** It is possible to respond at a lower cost compared to creating the base material from scratch. - **Short delivery times:** The delivery time for thickness adjustment processing can typically be accommodated with an additional few days on top of the usual etching processing lead time. - **Small lot production:** There is no need to specify a minimum production quantity; we can accommodate orders starting from just one piece. *For more details, please refer to the PDF materials or feel free to contact us.*

  • Processing Contract

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[Processing Example] Etching Processing Cross-Section Shape Taper Shape

[Processing Example] Etching Processing Cross-Section Shape Taper Shape

Utilizing the unique "taper" of etching processing! We can assist you from the prototype stage.

Hirai Precision Industry is a metal processing manufacturer specializing in etching processing. Etching processing uses chemical solutions to dissolve metal and create the necessary shapes. When metal is dissolved during this etching process, a protrusion can form at the center of the cross-section. This is referred to as a "taper." Utilizing this unique "taper" from the etching process, our company assists in various items across different industries. [Types] ■ Front and back difference taper ■ Step taper ■ Indentation taper ■ Protrusion taper *For more details, please refer to the PDF materials or feel free to contact us.

  • Processing Contract

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[Processing Example] Etching Process - Metal Foreign Matter (Contamination)

[Processing Example] Etching Process - Metal Foreign Matter (Contamination)

With fine etching processing, it is possible to reproduce metal foreign substances (contaminants) in arbitrary shapes!

Hirai Precision Industries' etching process uses a film or glass plate known as a master plate for processing. Therefore, even if the requested size of the design drawn on the plate is a small shape, it is possible to carry out the processing. Taking advantage of that feature, there are also requests to intentionally create metal foreign objects (contaminants). This serves the purpose of evaluating the removal of foreign objects that may occur during manufacturing. [Case Overview] ■ Product Shape: Individual numbers from 0 to 9 ■ Material: SUS304-CSP-H ■ Plate Thickness: 0.01t ■ Minimum Residual Width: 0.05mm ■ Minimum Cutting Width: 0.05mm ■ Comparison Object: 0.5mm wide mechanical pencil lead *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract

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[Processing Examples] Etching Processing: Advantages and How to Choose

[Processing Examples] Etching Processing: Advantages and How to Choose

We can also accommodate small quantities! We can deliver without any deformation or distortion!

I would like to introduce the benefits that customers feel regarding the etching processing by Hirai Precision Industry, which leads them to place orders. We can process metal sheets with a thickness ranging from 0.005mm for thin sheets to about 2mm for thicker sheets. Since it is a chemical processing technology that does not apply heat or force, we can deliver products without deformation or distortion, and there will be no burrs in the thickness direction. Furthermore, the more complex the shape, the more we can provide advantages in delivery time and cost compared to other metal processing methods. 【In the following situations】 ■ When the thickness of the metal sheet to be processed is thin ■ When you want to avoid burrs in the thickness direction (Z direction) ■ When you want to manufacture complex and fine shapes ■ When you want to mass-produce fine parts ■ When you want to procure prototypes quickly and cheaply *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract

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[Processing Example] Power Semiconductor (Power Device) Etching Processing

[Processing Example] Power Semiconductor (Power Device) Etching Processing

Etching processing, which Hirai Precision Industry excels at, is sometimes used in "heat dissipation plates"!

Power semiconductors (power devices) refer to semiconductors capable of handling large currents and high voltages. Our company primarily collaborates in the support and fixation of power semiconductor (power device) chips through lead frames and their heat sinks, as well as in the production processes using jigs and metal masks. In lead frames, we possess a variety of materials ranging from pure copper to copper alloys (such as TAMAC and KFC), and we are capable of etching processing. 【Features】 ■ In lead frames, we have a variety of materials ranging from pure copper to copper alloys (such as TAMAC and KFC), and we are capable of etching processing. ■ For heat sinks, we can handle thick copper through precision machining by Hirai Precision Industry (fiber laser processing and wire electrical discharge machining). *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract

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[Processing Example] Regarding the Fine Residual Width in Etching Processing

[Processing Example] Regarding the Fine Residual Width in Etching Processing

By innovating processing techniques, we can achieve fine residual widths while preserving the surface condition!

Hirai Precision Industry specializes in metal etching processing. With this etching process, it is possible to create fine residual widths. We will consider the material, plate thickness, and shape according to your application. If you have previously considered and abandoned a project, please feel free to consult with us, and we will consider conducting a test trial. 【Case Study (1) Overview】 ■ Processing Method: Etching ■ Material: SUS304-HTA ■ Plate Thickness: 0.03mm ■ Residual Width Dimensions: 0.012mm to 0.020mm *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract

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[Processing Example] Etching Process Through-Holes of φ0.05mm or Smaller

[Processing Example] Etching Process Through-Holes of φ0.05mm or Smaller

It is possible to create fine holes through metal etching processing! We will positively try to implement it.

We would like to introduce a case where we finished fine holes with a diameter of φ0.05mm (50 microns) using our specialty photochemical etching process. We can handle materials such as Cu (copper), AL (aluminum), Fe (iron), and Ni alloys (Kovar, 42 alloy, Amber), as well as special materials like silicon steel sheets. For fine hole processing of materials other than SUS, confirmation through prototyping and testing is necessary. We will consider processing according to your desired material, plate thickness, and required shape. 【Case Study (1) Overview】 ■ Processing Method: Etching ■ Material: SUS304-HTA, Plate Thickness 0.02mm ■ Hole Diameter: 0.025mm to 0.035mm (25 microns to 35 microns) ■ Product Size: φ30mm ■ Number of Sample Holes: 5 *For more details, please refer to the PDF document or feel free to contact us.

  • Processing Contract

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[Processing Example] Etching Processing, Black Dyeing, Black Treatment

[Processing Example] Etching Processing, Black Dyeing, Black Treatment

Produced while suppressing warping and distortion in the finish! Depending on your request, partial black dyeing can also be accommodated.

Etched products are used as light shields (aperture plates) for built-in camera modules in smartphones and mobile phones. To absorb light, they are generally black in appearance. There are also specifications that stack multiple plates to allow for fine adjustments of hole sizes. The holes are usually circular, but can also be of irregular shapes. However, with Hirai Precision Industry's etching process, it is possible to easily create irregular shapes. **Advantages of creating apertures through etching:** - Compared to machining (laser processing, wire electrical discharge machining, cutting), etching can produce parts with reduced warping and distortion. - It can process thin foils with a thickness of 0.005mm. - Not only etching, but also black surface treatment can be processed and delivered consistently. *For more details, please refer to the PDF document or feel free to contact us.*

  • Processing Contract

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Optical thin film component - infrared filter

Optical thin film component - infrared filter

Multilayer interference filter used in the infrared range of approximately 0.7 to 1000 μm.

It is a filter that controls infrared light by forming a multilayer film on optical substrates such as quartz, sapphire, Si, and Ge, utilizing the interference effect of the film. The selection of the optical substrate used takes advantage of the optical properties of the materials.

  • Other optical parts

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All-dielectric interference filter DIF-A/B/C Type

All-dielectric interference filter DIF-A/B/C Type

Japan Vacuum Optics, meeting various optical needs.

It is a filter that utilizes the interference phenomenon of reflected light occurring at the interface of a thin film to selectively transmit light of specific wavelengths.

  • Other optical parts

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Cold Filter CF

Cold Filter CF

Japan Vacuum Optics meets various optical needs.

The multilayer film without light absorption separates infrared and visible light, which are sources of heat in lighting, or separates ultraviolet and visible light.

  • Other optical parts

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