Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5106913 | Rubber composition | Tetsuo Yamaguchi, Shin-ichi Yachigo, Tamaki Ishii, Masakatsu Yoshimura, Chinehito Ebina | 1992-04-21 |
| 5049604 | Process for producing piperidine derivative and stabilized resin composition containing said derivative | Takeo Fujii, Tamaki Ishii, Shinichi Yachigo, Tatsuo Kaneoya, Yukoh Takahashi +2 more | 1991-09-17 |
| 4725634 | Stabilizer for synthetic resins | Tamaki Ishii, Shinichi Yachigo, Haruki Okamura, Yuzo Maegawa, Yukoh Takahashi +1 more | 1988-02-16 |
| 4687756 | Vulcanization accelerator, a means for accelerating vulcanization and an improved rubber product containing said accelerator therein | Akinori Okamoto, Tetsuo Yamaguchi, Haruki Okamura | 1987-08-18 |
| 4670489 | Piperidine derivatives, their production and use as stabilizers | Yukoh Takahashi, Tatsuo Kaneoya, Yuzo Maegawa, Haruki Okamura, Shinichi Yachigo +1 more | 1987-06-02 |
| 4670488 | Piperidine derivatives, their production and use as stabilizers | Yuzo Maegawa, Yukoh Takahashi, Tatsuo Kaneoya, Haruki Okamura, Shinichi Yachigo +1 more | 1987-06-02 |
| 4360621 | Low viscous p-phenylene diamine stabilizers | Osamu Kimura, Takashi Kojima, Hideo Nagasaki | 1982-11-23 |
| 4326062 | Manufacture of polymerized 2,2,4-trimethyl-1,2-dihydroquinoline | Takashi Kojima, Ryozo Ishimoto | 1982-04-20 |