Issued Patents 1982
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4362830 | Hindered bis-phenol phenyl phosphites and synthetic resin compositions having enhanced stability to heat and light | Motonobu Minagawa | 1982-12-07 |
| 4349468 | Stabilizer for polyolefin resin | Tohru Haruna | 1982-09-14 |
| 4348308 | Ortho-substituted aryl phosphite additive composition | Motonobu Minagawa, Kazumi Kitsukawa | 1982-09-07 |
| 4346025 | Stabilized vinyl chloride polymer comprising a phenylethylidene aryl phosphite | William E. Leistner, Motonobu Minagawa, Kazumi Kitsukawa | 1982-08-24 |
| 4336183 | 2,2,6,6-Tetramethyl-4-piperidyl carboxylic acid esters and amides of mono and poly alcohols, phenols and amines as stabilizers for synthetic polymers | Toshihiro Shibata, Naohiro Kubota | 1982-06-22 |
| 4321191 | Stabilized composition comprising a dihydric alcohol thiodipropionic acid ester | Motonobu Minagawa, Tohru Haruna | 1982-03-23 |
| 4309335 | Polyphenylene oxide resin composition stabilizer | Mitsuo Akutsu, Kazumi Kitsukawa | 1982-01-05 |