TO

Tsutomo Obayashi

HC Hiraoka & Co.: 1 patents #7 of 15Top 50%
Overall (All Time): #3,982,859 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4696830 Process for preparation of water-proof sheets Shinobu Watanabe, Kazuhide Ino 1987-09-29