Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5885917 | Porous lithium aluminate carrier of spinel structure for catalyst | Tokuo Matsuzaki, Mikio Hidaka | 1999-03-23 |
| 5688984 | Porous lithium aluminate carrier of spinel structure for catalyst | Tokuo Matsuzaki, Mikio Hidaka | 1997-11-18 |
| 5164349 | Electromagnetic effect material | Toshitaka Fujii, Atsushi Kajima, Ryoji Sugise, Iwao Okamoto | 1992-11-17 |
| 4778734 | Barium ferrite magnetic powder and magnetic recording medium containing the same | Takayuki Kimura, Hiroshi Miura, Kazuo Hashimoto | 1988-10-18 |
| 4444907 | Methacrylic acid production catalyst | Toshihiko Hogami, Masataka Fujinaga | 1984-04-24 |
| 4364844 | Catalyst for production of unsaturated carboxylic acid, preparation thereof and production of unsaturated carboxylic acid | Sumio Umemura, Fumihiko Sakai, Kenichi Suzuki, Yasuo Bando, Toshihiko Hogami +1 more | 1982-12-21 |
| 4290922 | Ammoxidation catalyst for the production of acrylonitrile from propylene and process for producing the same | Sumio Umemura, Mikio Hidaka, Toshio Kurafuji | 1981-09-22 |
| 4278614 | Process for the catalytical preparation of acrylonitrile | Sumio Umemura, Tokuo Matsuzaki, Hiroyuki Asada, Masao Tsuruoka | 1981-07-14 |
| 4267385 | Process for the catalytic preparation of acrolein and methacrolein | Sumio Umemura, Hiroyuki Asada | 1981-05-12 |
| 4264476 | Catalyst for producing acrylonitrile in a fluidized bed reactor | Sumio Umemura, Mikio Hidaka, Toshio Kurafuji | 1981-04-28 |
| 4256914 | Catalytic oxidation of methacrolein | Sumio Umemura, Fumihiko Sakai, Kenichi Suzuki, Toshihiko Hogami, Masataka Fuginaga | 1981-03-17 |
| 4217309 | Process for producing methacrolein | Sumio Umemura, Kenichi Suzuki, Yasuo Bando, Terumi Hisayuki | 1980-08-12 |
| 4205010 | Method for the catalytical production of acrylonitrile | Sumio Umemura, Taizo Uda, Tokuo Matsuzaki, Mikio Hidaka, Yasuo Nakamura +1 more | 1980-05-27 |