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  3. セイホープロダクツ 業務本部
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セイホープロダクツ 業務本部

capital6500Ten thousand
addressFukuoka/Onojo-shi/Niu Neck 2364-3 SGG Building 3F
phone092-595-0704
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last updated:May 29, 2026
セイホープロダクツlogo
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  • Company information
  • Products/Services(54)
  • catalog(61)
  • news(14)

セイホープロダクツ Company Overview

A deeper and newer vision of what should be - "Learning from the past to create the future."

In the 21st century, the way human society exists on a global scale is being questioned. In this era of rapid change, what kind of aspirations should we have when engaging in business? SEIHO's new concept naturally arose from such inquiries. "Compassion" is the new concept. Rather than pursuing extravagant ideas, we want to delve deeper into a common concept that everyone can be confident in. To realize this concept, we wish to return to our origins once again. In a time when a diverse array of information is overflowing, if we misinterpret the clear distinction between "purpose" and "means," even effective technology can become futile. SEIHO will firmly place "principles, fundamentals, and roots" as the axis of our management decisions, learning from the wisdom of past sages while creating genuine technologies and services that benefit society.

Business Activities

Design, development, and sales of residential-related equipment.

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Products/Services (54)

Seihou Products General Catalog product image
Seihou Products General Catalog
Underfloor Ventilation Series "Turbine Unit Type Ai" product image
Underfloor Ventilation Series "Turbine Unit Type Ai"
Underfloor Ventilation Series "Turbine Unit Type Bi" product image
Underfloor Ventilation Series "Turbine Unit Type Bi"
Underfloor Ventilation Series "Fuutaro Blower 24 Set" product image
Underfloor Ventilation Series "Fuutaro Blower 24 Set"

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catalog(61)

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Underfloor Ventilation Series "Turbine Unit"

Underfloor Ventilation Series "Turbine Unit"

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Underfloor electronic dehumidification unit 'DRY PRO' Ver3

Underfloor electronic dehumidification unit 'DRY PRO' Ver3

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Underfloor electronic dehumidifying and air blowing unit 'Dry Pro'

Underfloor electronic dehumidifying and air blowing unit 'Dry Pro'

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news(14)

SEIHO-WEB260518.jpg

The SEIHO official website has been renewed.

  • COMPANY

In this renewal, we have completely revamped the structure and design to deliver clearer and more specialized information. 【Main Changes】 - Optimized the TOP page from the end-user perspective, allowing intuitive access to necessary information. - Established a neutral "Living Environment Lab" for both users and businesses to share insights on living environments. - Added a "note" as the president's NEWS to bring the company's thoughts and initiatives closer to the audience. - Updated the product logo to symbolize technological prowess, advancement, and professionalism, serving as the "face of the company." 【Upcoming Changes】 - Restructuring the landing page "Underfloor and Attic Ventilation Consultation Room" to strengthen the problem-solving pathway. We will continue to provide information and value focused on the future of living environments. Please take a look at the new SEIHO-WEB.

May 18, 2026

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About the "Automatic Stop Function after 10 Years" for the Underfloor and Attic Ventilation Fan Series.

  • PRODUCT

Regarding the "Automatic Stop Function after 10 Years" Automatic stop has been implemented in products manufactured from 2015 onwards. ■ Overview of Inspection Period Notification Function The dedicated controllers and timers for underfloor and attic ventilation fans sold since 2015 are equipped with the safety function mentioned on the left. Starting from November 2025, this automatic stop function will be activated sequentially for products manufactured in 2015. ■ Response Procedure at the Time of Automatic Stop It is anticipated that customers will contact the sales and installation stores. We ask that the sales and installation stores respond according to the following steps: 1. Conduct a safety inspection based on the "Underfloor and Attic Ventilation Fan Inspection Checklist." * Please be sure to check for looseness and retighten the connections of the controller and timer. If any liquids such as water, oil, or detergent have come into contact, the internal components may corrode, leading to ignition or fire, necessitating the replacement of the main unit. 2. If there are no issues, press and hold the set button to restart operation. ■ Start of Shipment for Controllers/Timers with Inspection Period Notification Function For details regarding the shipment history of timers, please contact our company: your sales representative or the Quality Control Department.

Jan 05, 2026

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Effect of using a moisture-absorbing agent (bamboo charcoal) in conjunction with a underfloor ventilation fan.

  • PRODUCT

We highly recommend that customers who have already installed moisture control materials (such as bamboo charcoal) consider adding a subfloor ventilation fan. We will compare and verify the moisture control effects/performance of using only subfloor moisture control agents (bamboo charcoal) versus using both subfloor moisture control agents and mechanical ventilation through moisture absorption and desorption tests. *The operation time of the ventilation fan will be under desorption conditions. By adding a ventilation fan to the subfloor where bamboo charcoal mats are installed, we have confirmed improvements in ventilation and airflow effects, leading to enhanced moisture absorption and release efficiency of the bamboo charcoal mats and reduced drying time. Furthermore, it is expected that the combined use of the ventilation fan will further improve moisture control performance, leading to a decrease in subfloor humidity and enhanced drying effects on the moisture content of the wood. Please be sure to read the [related materials] and [related links]. ↓ ↓ ↓

Dec 19, 2025

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Detailed information

Company name セイホープロダクツ 業務本部
Contact addresspostalcode 816-0971 Fukuoka/ Onojo-shi/ Niu Neck 2364-3 SGG Building 3FView on map TEL:092-595-0704 FAX:092-595-0931
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