Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6657097 | Fluidized bed reactor | Kazuhiro Shimizu | 2003-12-02 |
| 6620948 | Process for the preparation of maleic anhydride | Hideo Suwa, Yasunori Ishimura, Yoshiaki Iizuka, Mineo Izumi | 2003-09-16 |
| 6458971 | Process for the production of maleic anhydride | Yoshiaki Iizuka, Tatsuya Ihara, Yasuyuki Yamauchi, Mamoru Sawano | 2002-10-01 |
| 6310219 | Process for the production of maleic anhydride | Hideo Suwa, Yasunori Ishimura, Yoshiaki Iizuka, Mineo Izumi | 2001-10-30 |
| 6294685 | Method for gas phase catalytic oxidation of hydrocarbon | Takashi Ushikubo, Kazunori Oshima, Ken Shiraga, Satoshi Kobayakawa, Hideaki Takumi | 2001-09-25 |
| 6093835 | Process for producing maleic anhydride | Hideo Suwa, Yasunori Ishimura, Tatsuya Ihara | 2000-07-25 |
| 5472925 | Catalyst for the production of nitriles | Takashi Ushikubo, Kazunori Oshima, Atsushi Kayo, Tiaki Umezawa, Ken-ichi Kiyono +1 more | 1995-12-05 |
| 5422328 | Process for preparing a catalyst useful for producing a nitrile | Takashi Ushikubo, Kazunori Oshima, Kei Inumaru, Satoshi Kobayakawa, Ken-ichi Kiyono | 1995-06-06 |
| 5281745 | Process for producing nitriles | Takashi Ushikubo, Kazunori Oshima, Atsushi Kayo, Tiaki Umezawa, Ken-ichi Kiyono | 1994-01-25 |