Notice of HP Renewal
We have renewed our company website.
Thank you for your continued support of Rihyo Corporation.

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● The production time for casting prototypes can be shortened! Since model making is not required, the production time for prototypes, which previously took about a month, can be significantly reduced. ● Model costs can be reduced! By directly creating sand molds from 3D data, there is no need for model production costs. If changes to the model are necessary, they can be addressed by modifying the 3D data. ● Similar products with different shapes and dimensions can be prototyped simultaneously! Different products, such as similar shapes or variations in dimensions, can be created in a single molding process. This allows for the verification of multiple types in a short period.
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The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If you require a detailed technical explanation, please contact us.
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Fukuda Co., Ltd. has been pursuing leak detection for 60 years and is committed to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing properties. We will propose the appropriate testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)
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We are pleased to announce that we have been featured in the "Yokohama Manufacturing Company Guide 2026-2027." This guide serves as a booklet introducing outstanding manufacturing companies in Yokohama, and it is utilized by many business professionals and job seekers. Information about IIDA's technical capabilities in resin processing, as well as our products and services, is included, so please take a look through the related links. [Limited Company Iida Seisakusho] 21-2 Mizukami, Nukazawa, Motomiya City, Fukushima Prefecture, 969-1204 TEL: 0243-64-2320 FAX: 0243-64-2571
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Among optical components, metal mirrors possess characteristics such as "broadband and stable reflection performance," "minimal variation in properties with respect to incident angle," and "excellent durability," making them a crucial factor that influences the reliability of devices. They can cover not only visible light but also infrared (IR) and even ultraviolet (UV) regions, leading to their widespread adoption from fundamental research to industrial applications. In this article, we will thoroughly compare the types of representative metal mirrors and their features, clearly organizing selection points based on applications and purposes. We aim to provide helpful information for those wondering, "Which metal is best suited for my device?" 1. The mechanism of metal mirrors and representative coating materials 2. Evaluation criteria for major metal mirrors 3. Aluminum mirrors (Al) 4. Silver mirrors (Ag) 5. Gold mirrors (Au) 6. Aluminum enhanced mirrors (Al Enhanced Mirror) 7. Recommended metal mirrors by application (selection guide based on technical background) 8. The added value that Adachi New Industry can provide (technology + proposal capability)
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