Certificates
PEJ commitment to quality (Japanese)
![PEJ commitment to quality (Japanese).](/images/Certificates/JPG/PEJDeclaration.jpg)
ISO9001 certificate (Japanese)
![ISO9001 certificate (Japanese).](/images/Certificates/JPG/ISO9001JP.jpg)
ISO9001 certificate (English)
![ISO9001 certificate (English).](/images/Certificates/JPG/ISO9001EN.jpg)
Patent of a ventilation unit with heat exchanger (Japanese)
![Patent of a ventilation unit with heat exchanger (Japanese).](/images/Certificates/JPG/Certificate-of-patent.jpg)
Seseragi trademark registration
![Seseragi trademark registration.](/images/Certificates/JPG/SeseragiTM.jpg)
Seseragi α trademark registration
![Seseragi α trademark registration.](/images/Certificates/JPG/SeseragiAlphaTM.jpg)
Gauss Fan trademark registration
![Gauss Fan trademark registration.](/images/Certificates/JPG/GaussFanTM.jpg)
PEJ super ventilation trademark registration
![PEJ super ventilation trademark registration.](/images/Certificates/JPG/PEJSuperKankiTM.jpg)
PEJ ventilation trademark registration
![PEJ ventilation trademark registration.](/images/Certificates/JPG/PEJKankiTM.jpg)
Breathing type ventilation trademark registration
![Breathing type ventilation trademark registration.](/images/Certificates/JPG/KokyugatakankiTM.jpg)
European patent of a fan unit invention
![Eurpean patent of a fan unit invention.](/images/Certificates/JPG/EU-Designation-as--Inventor.jpg)
Certificate of membership | Japan Builders Network
![JCertificate of membership | Japan Builders Network.](/images/Certificates/JPG/JBN.jpg)
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