Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5272202 | Hydrogenation process of unsaturated, nitrile-group-containing polymer and aqueous emulsion of hydrogenated polymer | Kiyomori Ohura | 1993-12-21 |
| 5169901 | Method for hydrogenating conjugated diene polymer | Kazuhiro Takahashi | 1992-12-08 |
| 5164457 | Method for hydrogenating nitrile group-containing unsaturated copolymer | Kazuhiro Takahashi | 1992-11-17 |
| 5151333 | Magnetic recording medium comprising a magnetic layer or backcoat layer containing a specified dispersant | Shizuo Kitahara, Eitaro Nakamura | 1992-09-29 |
| 5128297 | Method for hydrogenating conjugated diene polymer | Kazuhiro Takahashi | 1992-07-07 |
| 5013796 | Nitrile group-containing highly saturated copolymer rubber and rubber composition having improved cold resistance | Sachio Hayashi, Noboru Watanabe, Yoshiaki Aimura | 1991-05-07 |
| 5013797 | Nitrile group-containing highly saturated copolymer rubber and rubber composition having improved cold resistance | Sachio Hayashi, Noboru Watanabe, Yoshiaki Aimura | 1991-05-07 |
| 4965323 | Method of vulcanizing rubber at pH 5 to 10 | Noboru Watanabe | 1990-10-23 |
| 4956417 | Nitrile group-containing highly saturated copolymer rubber and rubber composition having improved cold resistance | Sachio Hayashi, Noboru Watanabe, Yoshiaki Aimura | 1990-09-11 |
| 4954576 | Process for hydrogenating conjugated diene polymers | Kiyomori Ohura | 1990-09-04 |
| 4910267 | Oil-resistant and anti-degrading rubber article | Motofumi Oyama, Toshiharu Honda | 1990-03-20 |
| 4786675 | Sealed semiconductor containing an epoxy resin composition | Riso Iwata | 1988-11-22 |
| 4656219 | Rubber member having oil resistance and resistance to deterioration | Motofumi Oyama, Toshiharu Honda | 1987-04-07 |
| 4654404 | Oil-resistant rubber composition | Noboru Watanabe, Tsuyoshi Nakagawa, Hideyoshi Shimoda | 1987-03-31 |
| 4643938 | Belt comprising rubber and fibers | Motofumi Oyama, Toshiharu Honda | 1987-02-17 |
| 4614779 | Oil- and heat-resistant rubber composition comprising nitrile containing rubber and fluorine containing rubber | Noboru Watanabe, Hideyoshi Shomoda | 1986-09-30 |
| 4593070 | Impact-resistant phenolic resin composition | Motofumi Oyama | 1986-06-03 |
| 4560729 | Rubber composition | Noboru Watanabe | 1985-12-24 |
| 4559390 | Method for preventing degradation and deterioration of vulcanized rubber material | Noboru Watanabe, Motofumi Oyama | 1985-12-17 |
| 4510293 | Process for hydrogenating conjugated diene polymers | Takaaki Kohtaki, Kiyomori Oura | 1985-04-09 |
| 4452951 | Process for hydrogenating conjugated diene polymers | Kiyomori Oura | 1984-06-05 |
| 4384081 | Process for production of hydrogenated conjugated diene polymers | Tetsu Ohishi, Kiyomori Ohura | 1983-05-17 |
| 4337329 | Process for hydrogenation of conjugated diene polymers | Kiyomori Ohura | 1982-06-29 |