Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5144058 | Colorless grained alpha-form crystals of tetrakis [3-(3,5-di-t-butyl-4-hydroxyphenyl)propionyloxymethyl]methane and process for its manufacture | — | 1992-09-01 |
| 4946358 | Mold mounting apparatus | Masahisa OKUDA, Hiroaki Kitagawa, Koichi Kaku | 1990-08-07 |
| 4871793 | Polyphenylene sulfide resin compositions having improved resistance to deterioration when exposed to light and containing alkylidene bis (benzotriazolylphenols) | Yutaka Nakahara, Toshio Nakajima | 1989-10-03 |
| 4812498 | Polycarbonate resin compositions having improved resistance to deterioration when exposed to light and containing alkylidene bis(benzotriazolyl phenols) | Yutaka Nakahara, Toshio Nakajima | 1989-03-14 |
| 4684679 | Polyacetal resin compositions having improved resistance to deterioration when exposed to light and containing alkylidene bis(benzotriazolyl phenols) | Naohiro Kubota | 1987-08-04 |
| 4684680 | Thermosetting synthetic resin lacquer compositions having improved light stability | Naohiro Kubota, Toshihiro Shibata | 1987-08-04 |
| 4681905 | Stabilizer compositions for synthetic resins imparting improved light stability | Naohiro Kubota | 1987-07-21 |
| 4663459 | Method for preparing 2,2,6,6-tetramethyl-4-oxopiperidine | Tohru Haruna, Kazuo Sugibuchi | 1987-05-05 |
| 4661597 | Process for preparing 2,2,6,6-tetramethyl-4-oxopiperidine | Tohru Haruna, Kazuo Sugibuchi | 1987-04-28 |
| 4619958 | Mixed 2,2,6,6-tetramethyl piperidinyl carboxylic acid ester and amide light stabilizers and stabilized synthetic polymers | Tohru Haruna | 1986-10-28 |
| 4529760 | Oligomers of 2,2,6,6-tetramethylpiperidinol polycarboxylic acid esters and synthetic polymer compositions | William E. Leistner, Motonobu Minagawa, Yutaka Nakahara, Tohru Haruna | 1985-07-16 |