YI

Yasutoshi Isayama

KA Kao: 4 patents #816 of 3,221Top 30%
Overall (All Time): #1,293,078 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
5444099 Tertiary aminoalcohol ane process for producing the same, and, polyurethane and process for producing the same Hiroshi Abe, Tetsuaki Fukushima, Kohshiro Sotoya, Shoichiro Harada, Hiroshi Kitagawa +1 more 1995-08-22
5315041 Tertiary aminoalcohol and process for producing the same, and, polyurethane and process for producing the same Hiroshi Abe, Tetsuaki Fukushima, Kohshiro Sotoya, Shoichiro Harada, Hiroshi Kitagawa +1 more 1994-05-24
5306735 Polyurethane, process for producing the same, and process for producing polyurethane foam Shoichiro Harada, Tetsuaki Fukushima, Masayoshi Morii, Hiroshi Kitagawa, Hiroshi Abe 1994-04-26
5223547 Polyurethane, process for producing the same, and process for producing polyurethane foam Shoichiro Harada, Tetsuaki Fukushima, Masayoshi Morii, Hiroshi Kitagawa, Hiroshi Abe 1993-06-29