Issued Patents 1994
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5315032 | Method of producing an N-hydroxycarbamate compound | Keigo Nishihira, Katsuhiko Mizutare, Masahiro Kondo | 1994-05-24 |
| 5311924 | Molten metal level control method and device for continuous casting | Kazuya Asano, Takayuki Kaji, Kazuo Arai, Michio Ibaraki, Yuki Nabeshima +6 more | 1994-05-17 |
| 5292917 | Process for purifying dimethyl carbonate | Keigo Nishihira, Shinichi Yoshida | 1994-03-08 |
| 5276200 | Method of preparing sodium formyl acetone and 4,4-dimethoxy-2-butanone | Keigo Nishihira, Masahiro Kondo | 1994-01-04 |