Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5993974 | Porcelain-enameled steel sheets and frits for enameling | Yasumasa Fukushima, Masato Kumagai, Kyoko Hamahara, Koji Watanabe, Hiroshi Nagaishi +1 more | 1999-11-30 |
| 5284552 | Method for refining methylnaphthalene-containing oil | Yoshinori Takagi, Tatsuya Nobusawa | 1994-02-08 |
| 5276234 | Process for producing 2-methylnaphthalene | Tatsuya Nobusawa, Akinori Matsuura | 1994-01-04 |
| 5243113 | Process for preparing 2-methylnaphthalene | Tatsuya Nobusawa, Yoshinori Takagi, Tsugio Horita | 1993-09-07 |
| 5147624 | Production process of chlorine | Tadamitsu Kiyoura, Masanobu Ajioka, Naoshi Fujimoto, Yasuo Kogure, Tokio Nagayama +1 more | 1992-09-15 |
| 4828815 | Production process of chlorine | Tadamitsu Kiyoura, Masanobu Ajioka, Naoshi Fujimoto, Yasuo Kogure, Tokio Nagayama +1 more | 1989-05-09 |
| 4783565 | Selective preparation of cis-perhydroacenaphthene | Yoshihiro Naruse | 1988-11-08 |
| 4761510 | Selective preparation of trans-perhydroacenaphthene | Yoshihiro Naruse | 1988-08-02 |