Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5284552 | Method for refining methylnaphthalene-containing oil | Yoshinori Takagi, Tatsuya Nobusawa | 1994-02-08 |
| 5276234 | Process for producing 2-methylnaphthalene | Tatsuya Nobusawa, Akinori Matsuura | 1994-01-04 |