Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348308 | Ortho-substituted aryl phosphite additive composition | Motonobu Minagawa, Yutaka Nakahara | 1982-09-07 |
| 4346025 | Stabilized vinyl chloride polymer comprising a phenylethylidene aryl phosphite | William E. Leistner, Motonobu Minagawa, Yutaka Nakahara | 1982-08-24 |
| 4309335 | Polyphenylene oxide resin composition stabilizer | Mitsuo Akutsu, Yutaka Nakahara | 1982-01-05 |