KK

Koichi Katayama

EI Eisai: 5 patents #240 of 998Top 25%
📍 Ibaraki, JP: #1,893 of 6,779 inventorsTop 30%
Overall (All Time): #1,039,131 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
6703388 Nitrogen-containing tricyclic compounds and drugs containing the same Mitsuaki Miyamoto, Tatsuya Yoshiuchi, Keizo Sato, Makoto Kaino, Masayuki Tanaka +8 more 2004-03-09
6489336 Nitrogen-containing tricyclic compounds and drugs containing the same Mitsuaki Miyamoto, Tatsuya Yoshiuchi, Keizo Sato, Makoto Kaino, Masayuki Tanaka +8 more 2002-12-03
6333322 Nitrogen-containing tricyclic compounds and drugs containing the same Mitsuaki Miyamoto, Tatsuya Yoshiuchi, Keizo Sato, Makoto Kaino, Masayuki Tanaka +8 more 2001-12-25
5385942 Quinone derivatives and pharmacological use Shinya Abe, Yasushi Okamoto, Katsuya Tagami, Shigeki Hibi, Junichi Nagakawa +9 more 1995-01-31
5210239 Ouinone derivatives and pharmacological use Shinya Abe, Yasushi Okamoto, Katsuya Tagami, Shigeki Hibi, Junichi Nagakawa +9 more 1993-05-11