Yamashin-Filter Corp. engages in the development, design, manufacture, and sale of filter products. The company is headquartered in Yokohama, Kanagawa-Ken and currently employs 751 full-time employees. The company went IPO on 2014-10-08. The firm operates its business through three segments. The Construction Machinery Filter segment mainly develops, manufactures, and sells filters for construction machinery, industrial use, and process use. The Air Filter segment mainly develops, manufactures, and sells air filters. The Healthcare segment mainly develops, manufactures, and sells Yamashin original masks that utilize synthetic polymer-based nanofibers.