Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5049604 | Process for producing piperidine derivative and stabilized resin composition containing said derivative | Takeo Fujii, Tamaki Ishii, Shinichi Yachigo, Tatsuo Kaneoya, Yuzo Maegawa +2 more | 1991-09-17 |
| 4985479 | Stabilized polyolefin composition | Hideo Nagasaki, Shinichi Yachigo, Takeshi Takata, Hiroki Yamamoto | 1991-01-15 |
| 4812494 | Stabilized styrene polymer | Hideo Nagasaki, Shinichi Yachigo, Tamaki Ishii, Masakatsu Yoshimura, Hiroki Yamamoto | 1989-03-14 |
| 4774274 | Thermally stabilized butadiene resins containing a hindered phenolic acrylate or methacrylate | Takeshi Takata, Shin-ichi Yachigo, Tatsuo Kaneoya, Haruki Okamura | 1988-09-27 |
| 4732923 | Butadiene polymer composition | Takeshi Takata, Shinichi Yachigo, Manji Sasaki, Taisuke Okita | 1988-03-22 |
| 4725634 | Stabilizer for synthetic resins | Tamaki Ishii, Shinichi Yachigo, Haruki Okamura, Yuzo Maegawa, Eizo Okino +1 more | 1988-02-16 |
| 4719037 | Piperidine derivatives, production process therefor, and stabilizers for organic substances containing said derivatives as an active component | Yuzo Maegawa, Hiroki Yamamoto, Tatsuo Kaneoya, Haruki Okamura, Shinichi Yachigo +1 more | 1988-01-12 |
| 4670489 | Piperidine derivatives, their production and use as stabilizers | Tatsuo Kaneoya, Eizo Okino, Yuzo Maegawa, Haruki Okamura, Shinichi Yachigo +1 more | 1987-06-02 |
| 4670488 | Piperidine derivatives, their production and use as stabilizers | Yuzo Maegawa, Eizo Okino, Tatsuo Kaneoya, Haruki Okamura, Shinichi Yachigo +1 more | 1987-06-02 |
| 4578410 | Piperidine derivatives, their production and stabilized polymer compositions containing same | Takeo Fujii, Masahisa Shionoya, Shinichi Yachigo, Tamaki Ishii | 1986-03-25 |
| 4562281 | Production of bisphenol derivatives | Yutaka Terada, Shinichi Yachigo, Tamaki Ishii | 1985-12-31 |
| 4539355 | Phosphorus-containing compounds, their production and their use as antioxidants | Shinichi Yachigo, Tamaki Ishii | 1985-09-03 |
| 4525514 | Stabilizer for polymeric substance and polymeric substance composition containing the same | Shinichi Yachigo, Tamaki Ishii, Yutaka Terada | 1985-06-25 |
| 4511491 | Stabilizers for synthetic resins | Tamaki Ishii, Shinichi Yachigo | 1985-04-16 |
| 4507417 | Stabilizers for synthetic resins | Tamaki Ishii, Shinichi Yachigo | 1985-03-26 |
| 4448915 | Acetylene carbamide derivatives, processes for their production, and antioxidants for organic substances which comprise such derivatives as active ingredients | Yutaka Terada, Shinichi Yachigo, Tamaki Ishii | 1984-05-15 |