Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5116949 | Benzoyl urea compound-albumin complex | Tsunetaka Nakajima, Tadao Okamoto, Nobuo Kondo, Masahiro Watanabe, Kazumasa Yokoyama +4 more | 1992-05-26 |
| 4605786 | Perfluoro ether compound containing perfluorocycloalkyl moiety | Kazumasa Yokoyama, Yoshihisa Inoue, Taizo Ono, Chikara Fukaya, Yoshio Arakawa +2 more | 1986-08-12 |