TW

Tatsumi Wakai

YK Ykk: 4 patents #176 of 845Top 25%
📍 Toyama, JP: #533 of 1,699 inventorsTop 35%
Overall (All Time): #1,276,358 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6314623 Coil-type slide fastener Sakae Aimono, Shinji Imai 2001-11-13
6230373 Slide fastener made of synthetic resin Yoshiharu Yamaguchi, Mutsuo Hirota, Toyosaku Ogura, Tsutomu Hamatani 2001-05-15
6082148 Warp-knit tape for slide fastener Sadaji Okeya 2000-07-04
5983465 Fastener tape and stringer for a slide fastener chain Muchiji Shimono, Akira Takano, Yoshiharu Yamaguchi 1999-11-16