Issued Patents All Time
Showing 51–53 of 53 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4210577 | Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethyl-4-piperidyl carboxylic acid ester, phosphonic acid ester and phenol | Motonobu Minagawa, Yutaka Nakahara, Naohiro Kubota | 1980-07-01 |
| 4189409 | Process for preparing a methylenebis(2-hydroxy-4-alkoxybenzophenone) and acyloxymethyl 2-OH 4-alkoxy benzophenones | Motonobu Minagawa, Naohiro Kubota | 1980-02-19 |
| 4186151 | Process for preparing a 5,5'-methylenebis(2-hydroxy-4-alkoxybenzophenone) | Naohiro Kubota, Kazuo Sugibuchi | 1980-01-29 |