IY

Itaru Yokoyama

KC Kawasaki Kasei Chemicals: 1 patents #4 of 10Top 40%
YC Yoshino Gypsum Co.: 1 patents #1 of 3Top 35%
Overall (2003): #206,209 of 273,478Top 80%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6638356 Gypsum-based building material Yoshiaki Ishibashi, Masanobu Seki 2003-10-28