Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5304656 | Process for preparing alkylene sulfides | Hitoshi Yano, Yoshinari Yamaguchi, Kimio Ariyoshi, Yuuji Shimasaki, Ryuichi Ishikawa | 1994-04-19 |
| 5262570 | Method of producing ethylenediamines | Yuuji Shimasaki, Hideaki Tsuneki, Youichi Hino, Tetsuro Hayashi | 1993-11-16 |
| 5235107 | Method of producing ethylenediamines | Yuuji Shimasaki, Hideaki Tsuneki, Youichi Hino, Tetsuro Hayashi | 1993-08-10 |
| 5231189 | Process for producing N-substituted aziridine compound | Hideaki Tuneki, Hitoshi Yano, Yuuji Shimasaki, Kimio Ariyoshi, Hideki Masada | 1993-07-27 |
| 5136104 | Method for production of substituted benzaldehyde | Noboru Saito, Isao Nakamura, Kazuhiro Takatsu, Isao Nagai | 1992-08-04 |
| 4977118 | Method for regeneration of catalyst for producing of aziridine compounds | Hideaki Tsuneki, Kimio Ariyoshi, Atusi Moriya | 1990-12-11 |
| 4966980 | Process for producing aziridines | Teruo Kamei, Yuuji Shimasaki, Hideaki Tsuneki, Koichi Yamamoto, Yutaka Morimoto | 1990-10-30 |
| 4841060 | Vapor-phase intramolecular dehydration reaction of alkanolamines | Youichi Hino, Yuuji Shimasaki | 1989-06-20 |
| 4841061 | Process for producing cyclic amines | Yuuji Shimasaki, Hideaki Tuneki, Kimio Ariyoshi | 1989-06-20 |
| 4833248 | Catalyst for vapor-phase intramolecular dehydration reaction of alkanolamines | Yuuji Shimasaki, Hideaki Tuneki, Youichi Hino, Hitoshi Yano | 1989-05-23 |
| 4814512 | Method for the production of p-methoxybenzaldehyde | Yoshiyuki Takahashi, Masatoshi Tsuchino, Noboru Saito | 1989-03-21 |
| 4774218 | Catalyst for vapor-phase intramolecular dehydration reaction of alkanolamines | Yuuji Shimasaki, Hideaki Tuneki, Youichi Hino, Hitoshi Yano | 1988-09-27 |
| 4731488 | Vapor-phase hydrogen transfer reaction of carbonyl compound with alcohol | Yuuji Shimasaki, Youichi Hino | 1988-03-15 |
| 4621155 | Process for preparation of methacrylic acid | Yoshiyuki Takahashi, Ritsuo Kitada, Isao Nagai | 1986-11-04 |
| 4564607 | Heteropolyacid-type catalyst composition containing whiskers | Tadahiro Yoneda | 1986-01-14 |
| 4558028 | Catalyst for production of methacrylic acid | Hideaki Tsuneki, Ryuji Aoki, Isao Nagai | 1985-12-10 |
| 4537874 | Catalyst for production of unsaturated aldehydes | Takahisa Sato, Masahiro Takata, Isao Nagai | 1985-08-27 |
| 4419270 | Oxidation catalyst | Yoshiyuki Takahashi, Ritsuo Kitada, Isao Nagai | 1983-12-06 |
| 4225466 | Catalytic oxide composition for preparing methacrylic acid | Masahiro Wada, Isao Yanagisawa, Michikazu Ninomiya | 1980-09-30 |