Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4714767 | Process for the separation of a basic amino acid from a fermentation broth using cation exchange resins | Kiyoshi Tanaka, Masaru Saeki, Yoshihiro Koga, Tetsuya Kawakita | 1987-12-22 |
| 4691054 | Method for separating a basic amino acid | Takafumi Tosa, Yoshihiro Koga | 1987-09-01 |
| 4399304 | L-phenylalanine 1/2 sulfate and its use | Hiromasa Maruyama, Toshio Kitahara, Akemi Kabashima, Ryuta Toyomasu | 1983-08-16 |