TO

Tetsuo Otsuka

DK Denki Kagaku Kogyo: 1 patents #14 of 48Top 30%
SJ Splice Sleeve Japan: 1 patents #1 of 4Top 25%
Overall (2011): #149,507 of 364,097Top 45%
1
Patents 2011

Issued Patents 2011

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
8080104 Filling material for reinforcing joint and construction method of filling reinforcing joint Tooru Shiraiwa, Tooru Yagi, Masahiro Abukawa 2011-12-20