Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4704471 | Process for producing DL-phenylalanine | Kiyotaka Oyama | 1987-11-03 |
| 4594450 | Process for producing an .alpha.-halogeno-.beta.-phenylpropionic acid | Kiyotaka Oyama | 1986-06-10 |
| 4587214 | Process for preparation of aspartylphenylalanine alkyl esters | Hisao Takemoto, Tatsuo Igarashi | 1986-05-06 |
| 4536342 | Process for producing a halogen-containing ethylbenzene derivative | Kiyotaka Oyama | 1985-08-20 |
| 4534909 | Process for producing a halogen-containing ethylbenzene derivative | Kiyotaka Oyama | 1985-08-13 |