Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7018570 | Ultraviolet absorber composition and resin composition stabilized therewith | Shinichi Ishikawa | 2006-03-28 |
| 6103828 | Macromolecular material composition and a modifier for macromolecular material | Yuji Kobayashi, Takayuki Saitoh, Atsushi Fujioka, Akihiro Kobayashi, Fumiaki Kanega +2 more | 2000-08-15 |
| 5238979 | Synthetic resins and stabilizer compositions for synthetic resin compositions containing the same | Kazunori Nishikawa | 1993-08-24 |
| 5112891 | Polycarbonate resin composition | Masayuki Takahashi, Toshinori Yukino | 1992-05-12 |
| 5077328 | Polyolefin resin composition | Takashi Takeuchi | 1991-12-31 |
| 5055507 | Synthetic resins and stabilizer compositions for synthetic resin compositions containing the same | Kazunori Nishikawa | 1991-10-08 |
| 5039723 | Stabilized synthetic resin composition | Kazunori Nishikawa | 1991-08-13 |
| 4999393 | Phosphonite compound and synthetic resin composition | Kazunori Nishikawa | 1991-03-12 |
| 4912156 | Polyolefin composition | Masaki Yagi, Takashi Takeuchi, Toshinori Yukino | 1990-03-27 |
| 4894400 | Stabilized synthetic polymer composition | Masayuki Takahashi, Kazunori Nishikawa | 1990-01-16 |
| 4885326 | Composition of stabilized synthetic resin | Kazunori Nishikawa, Mitsuhiro Hamajima | 1989-12-05 |
| 4670492 | Cyclic bis and tris phosphites and stabilized synthetic resin compositions | Yutaka Nakahara, Etsuo Tobita | 1987-06-02 |
| 4663459 | Method for preparing 2,2,6,6-tetramethyl-4-oxopiperidine | Atsushi Nishimura, Kazuo Sugibuchi | 1987-05-05 |
| 4661597 | Process for preparing 2,2,6,6-tetramethyl-4-oxopiperidine | Atsushi Nishimura, Kazuo Sugibuchi | 1987-04-28 |
| 4619958 | Mixed 2,2,6,6-tetramethyl piperidinyl carboxylic acid ester and amide light stabilizers and stabilized synthetic polymers | Atsushi Nishimura | 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, Atsushi Nishimura | 1985-07-16 |
| 4481317 | Hindered bisphenol diphosphonites and stabilized synthetic resin compositions containing the same | Yutaka Nakahara, Etsuo Tobita | 1984-11-06 |
| 4469828 | Alkylthiopropionyl hydrazino triazines and synthetic resin compositions | Motonobu Minagawa, Masayuki Takahashi | 1984-09-04 |
| 4463113 | Bis-phenol phosphates as clarifiers for polyolefin resins | Yutaka Nakahara, Mitsuo Akutsu, Masayuki Takahashi | 1984-07-31 |
| 4418196 | Process for preparing triacetone amine | Yutaka Nakahara, Naohiro Kubota, Bunji Hirai | 1983-11-29 |
| 4349468 | Stabilizer for polyolefin resin | Yutaka Nakahara | 1982-09-14 |
| 4321191 | Stabilized composition comprising a dihydric alcohol thiodipropionic acid ester | Motonobu Minagawa, Yutaka Nakahara | 1982-03-23 |
| 4293472 | Stabilized synthetic resin composition | Motonobu Minagawa, Yutaka Nakahara | 1981-10-06 |
| 4257927 | Inorganic organic coester stabilizers | William E. Leistner, Motonobu Minagawa, Yutaka Nakahara | 1981-03-24 |
| 4239803 | Ethylene polymer composition | Toshio Ohzeki, Mitsuo Akutsu, Yutaka Nakahara, Motonobu Minagawa, Masahiro Nonoyama | 1980-12-16 |