Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5015526 | Radiation-resistant high molecular composition | Masashige Kubo, Fumio Okisaki, Shunichi Fujimura, Teruo Fukuda | 1991-05-14 |
| 5004567 | Process for producing fluorine-containing aliphatic carboxylic acids | Mitsuru Takahashi, Hideo Shuyama, Osamu Miyano | 1991-04-02 |
| 4980507 | Process for producing polyethylenepolyamine | Norimasa Mizui, Keiji Mitarai | 1990-12-25 |
| 4914247 | Process for preparing para-substituted halogenobenzene derivatives | Kazuhiko Sekizawa, Toshio Hironaka, Masao Nakano | 1990-04-03 |
| 4906782 | Process for preparation of alkyleneamines | Yasushi Hara, Sadakatsu Kumoi | 1990-03-06 |
| 4900766 | Radiation-resistant high molecular composition | Masashige Kubo, Fumio Okisaki, Shunichi Fujimura, Teruo Fukuka | 1990-02-13 |
| 4898998 | Process for producing brominated acenaphthylene condensates | Masashige Kubo, Hideo Sakka | 1990-02-06 |
| 4861929 | Process for producing halogenated benzene derivative using zeolite catalyst | Takanori Miyake, Kazuhiko Sekizawa, Toshio Hironaka | 1989-08-29 |
| 4849560 | Process for preparation of halogenated benzene derivatives | Kazuhiko Sekizawa, Takanori Miyake, Toshio Hironaka | 1989-07-18 |
| 4845297 | Process for producing polyamines | Sadakatsu Kumoi, Keiji Mitarai | 1989-07-04 |
| 4792644 | Preparation of halogenated benzene derivatives | Toshio Hironaka, Kazuhiko Sekizawa | 1988-12-20 |
| 4760211 | Process for producing brominated acenaphthylene and its condensates | Masahige Kubo, Koji Kawabata | 1988-07-26 |
| 4740641 | Producing a halogenated benzene derivative using zeolite catalyst treated with alkali solution of pH 11 or more | Masao Nakano, Kazuhiko Sekizawa, Satoshi Fujii | 1988-04-26 |
| 4731493 | Process for producing condensed bromoacenaphthylene | Masashige Kubo, Mitsuaki Yoshimitsu | 1988-03-15 |
| 4625064 | Method for producing bis [.beta.(N,N-dimethylamino)ethyl]ether | Sadakatsu Kumoi, Keiji Mitarai | 1986-11-25 |
| 4617286 | Catalyst for polyurethane having delay property | Shoji Arai, Yutaka Tamano | 1986-10-14 |
| 4528410 | Process for preparation of alcohols by hydration of olefins | Teruhisa Sakamoto, Satoshi Ishida, Toshio Hironaka | 1985-07-09 |
| 4492803 | Method for producing bis[.beta.-(N,N-dimethylamino)alkyl]-ether | Sadakatsu Kumoi, Keiji Mitarai | 1985-01-08 |
| 4490556 | Method for preparing bis[.beta.-(N,N-dimethylamino)ethyl]ether | Sadakatsu Kumoi, Hideo Sakka | 1984-12-25 |
| 4277414 | Process for producing catalyst | Toshihiro Saito, Shoji Arai, Hideaki Matsunaga | 1981-07-07 |
| 4275243 | Process for producing hydroxybutyraldehyde | Toshihiro Saito, Shoji Arai | 1981-06-23 |
| 4263449 | Process for producing alcohols | Toshihiro Saito, Shoji Arai | 1981-04-21 |
| 4247708 | Method for rendering fine oxide powder hydrophobic | Yutaka Fukuda, Kenichi Matsubara | 1981-01-27 |