YH

Yorihisa Hamada

TC Toyo Seikan Co.: 2 patents #321 of 888Top 40%
Overall (All Time): #2,182,710 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6929836 Multi-layered preform and multi-layered bottle manufactured by using the same Atsushi Kikuchi, Makoto Etoh, Kazunobu Watanabe 2005-08-16
5409750 Stretched molded structure and a process for its production Yoshitsugu Maruhashi 1995-04-25