Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5302187 | Concentration process of gaseous chlorine | Hiroyuki Itoh, Yoshitsugu Kono, Yukihiro Yoshikawa, Isao Kikuchi, Teruo Hirayama | 1994-04-12 |
| 5254323 | Industrial process for the separation and recovery of chlorine | Hiroyuki Itoh, Yoshitsugu Kono, Isao Kikuchi, Masanobu Ajioka, Mitsuo Kudoh | 1993-10-19 |
| 5169823 | Method for stabilizing treatment of catalytic activity | Yukihiro Yoshikawa, Tooru Hihara, Teruo Hirayama, Kunihiro Yamada | 1992-12-08 |
| 5112580 | Reactor for the production of chlorine | Masanobu Ajioka, Hiroyuki Itoh, Masafumi Kataita, Yoshitsugu Kohno | 1992-05-12 |
| 5112593 | Production process of chlorine | Hiroyuki Itoh, Yoshitsugu Kono, Isao Kikuchi, Masanobu Ajioka | 1992-05-12 |
| 5108558 | Process for the electroreduction of aromatic carboxylic acids | Ryu Oi, Chitoshi Shimakawa | 1992-04-28 |
| 5093292 | Chromium oxide catalyst impregnation regeneration method | Yukihiro Yoshikawa, Tooru Hihara, Kunihiro Yamada, Kazunori Kawahara, Jun Kitagawa | 1992-03-03 |
| 5068459 | Process for producing m-phenoxybenzyl alcohol | Ryu Oi, Chitoshi Shimakawa | 1991-11-26 |
| 5034209 | Production process of chlorine | Masanobu Ajioka, Hiroyuki Itoh, Masafumi Kataita, Yoshitsugu Kohno | 1991-07-23 |
| 5000006 | Industrial process for the separation and recovery of chlorine | Hiroyuki Itoh, Yoshitsugu Kono, Isao Kikuchi, Masanobu Ajioka, Mitsuo Kudoh | 1991-03-19 |
| 4956169 | Production process of chlorine | Masanobu Ajioka, Hiroyuki Itoh, Masafumi Kataita, Yoshitsugu Kohno | 1990-09-11 |
| 4803065 | Production process of chlorine | Hiroyuki Itoh, Yoshitsugu Kono, Masanobu Ajioka, Masafumi Kataita | 1989-02-07 |
| 4774070 | Production process of chlorine | Hiroyuki Itoh, Yoshitsugu Kono, Masanobu Ajioka, Masafumi Kataita | 1988-09-27 |
| 4694110 | Process for production of m-phenoxybenzyl alcohol | Ryu Oi | 1987-09-15 |
| 4684449 | Process for producing m-hydroxybenzyl alcohol | Ryu Oi, Chitoshi Shimakawa | 1987-08-04 |
| 4670607 | Method for producing 2-(substituted aryl) propionaldehyde | Sadayuki Maeda, Yasutaka Shinoo, Susumu Arashida, Iwao Shimizu | 1987-06-02 |
| 4476335 | Process for preparing mononitrochlorobenzene | Takeshi Nishida, Joshiro Kanemoto | 1984-10-09 |