Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851590 | Method of purifying 2,4-xylenol | Tohru Miura, Katsuju Watanabe, Masayuki Furuya, Teruyuki Nagata | 1989-07-25 |
| 4827891 | Ignition apparatus for preventing unnecessary charging in an internal combustion engine | Nobuo Miura, Nolihisa Ishii, Hidenori Maeda | 1989-05-09 |