Issued Patents All Time
Showing 51–61 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4255301 | Glycol carbonate ester stabilizers for synthetic resins | Motonobu Minagawa, Naohiro Kubota | 1981-03-10 |
| 4252958 | Process for preparing 2,2,6,6-Tetramethyl-4-oxopiperidine | Bunji Hirai, Naohiro Kubota | 1981-02-24 |
| 4250313 | Process for preparing 4-piperidone spiroketal compounds | Naohiro Kubota, Toshihiro Shibata | 1981-02-10 |
| 4250312 | Process for preparing 4-piperidone spiroketal compounds | Naohiro Kubota, Toshihiro Shibata | 1981-02-10 |
| 4239803 | Ethylene polymer composition | Toshio Ohzeki, Mitsuo Akutsu, Tohru Haruna, Motonobu Minagawa, Masahiro Nonoyama | 1980-12-16 |
| 4233414 | Polyhydric phenol coester stabilizers | William E. Leistner, Motonobu Minagawa, Tohru Haruna | 1980-11-11 |
| 4226991 | Process for preparing 3-alkylthiopropionic acid esters | Tohru Haruna, Kenji Tazima | 1980-10-07 |
| 4225474 | Organophosphonate coester stabilizers | Motonobu Minagawa, Masayuki Takahashi | 1980-09-30 |
| 4222931 | Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethyl-4-piperidyl ether alcohol or ether, phosphonic acid ester and phenolic antioxidant | Motonobu Minagawa, Naohiro Kubota, Toshihiro Shibata | 1980-09-16 |
| 4210577 | Stabilizers for synthetic polymers comprising 2,2,6,6-tetramethyl-4-piperidyl carboxylic acid ester, phosphonic acid ester and phenol | Motonobu Minagawa, Naohiro Kubota, Toshihiro Shibata | 1980-07-01 |
| 4199495 | Thiolcarbonate ester stabilizers | Motonobu Minagawa, Kazumi Kitsukawa | 1980-04-22 |