Issued Patents All Time
Showing 26–50 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4491643 | Bis(2,2,6,6-tetramethylpiperidyl-1,3,5-triazinyl)-spirodiamines and spiroglycol ethers and synthetic resin compositions containing the same | Motonobu Minagawa, Toshihiro Shibata, Etsuo Tobita | 1985-01-01 |
| 4487900 | Diallyl 4-(2,2,6,6-tetramethyl piperidyl) amines as monomers and polymers and stabilized synthetic resin compositions | Ryoji Kimura | 1984-12-11 |
| 4487887 | Diallyl amino-4-(2,2,6,6-tetramethyl piperidyl) carboxylic acid esters and amides as monomers and polymers and stabilized synthetic resin compositions | Ryoji Kimura | 1984-12-11 |
| 4481317 | Hindered bisphenol diphosphonites and stabilized synthetic resin compositions containing the same | Tohru Haruna, Etsuo Tobita | 1984-11-06 |
| 4477616 | Tetra-(2,2,6,6- tetramethyl-4-piperidinyl)-3-methyl-5-(1'2'-biscarboxylate)-ethyl-cyclohe xane or 3-cyclohexene-1,2-dicarboxylates and synthetic resin compositions containing the same | Motonobu Minagawa, Toshihiro Shibata | 1984-10-16 |
| 4468488 | Poly(piperidylamine) alkanes and synthetic resin compositions stabilized thereby | Motonobu Minagawa, Toshihiro Shibata, Ryozo Arata | 1984-08-28 |
| 4463113 | Bis-phenol phosphates as clarifiers for polyolefin resins | Mitsuo Akutsu, Tohru Haruna, Masayuki Takahashi | 1984-07-31 |
| 4463112 | Phenylethylidene-substituted phenyl polyphosphites | William E. Leistner, Motonobu Minagawa, Kazumi Kitsukawa | 1984-07-31 |
| 4418196 | Process for preparing triacetone amine | Naohiro Kubota, Bunji Hirai, Tohru Haruna | 1983-11-29 |
| 4415688 | Poly(piperidylamine) alkanes and synthetic resin compositions stabilized thereby | Motonobu Minagawa, Toshihiro Shibata, Ryozo Arata | 1983-11-15 |
| 4415689 | Synthetic resin compositions containing 2,2,6,6-tetramethyl piperidinyl triazines | Motonobu Minagawa, Toshihiro Shibata | 1983-11-15 |
| 4405736 | 2,2,6,6-Tetramethyl-4-piperidyl spiro aliphatic ethers and stabilizers for synthetic polymers | Naohiro Kubota, Toshihiro Shibata, Kazuo Sugibuchi | 1983-09-20 |
| 4371647 | 2,6-Di-tertiary butyl phenyl pentaerythritol spiro bis-phosphites enhancing the stability to heat and light of synthetic resin | Motonobu Minagawa, Etsuo Tobita | 1983-02-01 |
| 4371646 | 2,6-Di-tertiary butyl phenyl phosphites and synthetic resin compositions having enhanced stability to heat and light | Motonobu Minagawa | 1983-02-01 |
| 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 |
| 4298520 | Phenolic ester synthetic resin stabilizers | Motonobu Minagawa, Masayuki Takahashi | 1981-11-03 |
| 4293472 | Stabilized synthetic resin composition | Motonobu Minagawa, Tohru Haruna | 1981-10-06 |
| 4282141 | Ortho-substituted phenyl phosphite additive composition | Motonobu Minagawa, Kazumi Kitsukawa | 1981-08-04 |
| 4257927 | Inorganic organic coester stabilizers | William E. Leistner, Motonobu Minagawa, Tohru Haruna | 1981-03-24 |