Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5300197 | Distillation apparatus with porous membrane and heat pump | Kenji Mitani, Akira Ashida, Hideaki Kurokawa | 1994-04-05 |
| 5289868 | Absorption chiller heater and unit-type air conditioning system | Yasuo Koseki, Ryuichi Kaji, Hiroaki Yoda, Takashi Nakao, Tomihisa Ohuchi +2 more | 1994-03-01 |
| 5205137 | Absorption air conditioner | Tomihisa Ohuchi, Akira Nishiguchi, Daisuke Hisajima, Seiichiro Sakaguchi, Yoshifumi Kunugi +2 more | 1993-04-27 |
| 5105556 | Vapor washing process and apparatus | Hideaki Kurokawa, Sankichi Takahashi, Harumi Matsuzaki, Hiroaki Yoda, Takahisa Nitta +2 more | 1992-04-21 |
| 5018367 | Cooling energy generator with cooling energy accumulator | Akira Yamada, Isao Ohkouchi, Yasuo Koseki, Hideaki Kurokawa, Sankichi Takahashi +2 more | 1991-05-28 |
| 4986079 | Apparatus and method of generating coldness | Yasuo Koseki, Akira Yamada, Hideaki Kurokawa, Isao Ohkouchi, Sankichi Takahashi | 1991-01-22 |
| 4953694 | Distilling apparatus | Nobuatsu Hayashi, Sankichi Takahashi, Hideaki Kurokawa, Akira Yamada, Yasuo Koseki +2 more | 1990-09-04 |
| 4894355 | Flexible, water-repellent baked carbon plate, its production, fuel cell electrode, fuel cell electrode plate and its production and fuel cell | Seiji Takeuchi, Tomoichi Kamo, Kazuo Iwamoto, Tatsuo Horiba, Teruo Kumagai +2 more | 1990-01-16 |
| 4879041 | Process for producing ultra-pure water and process for using said ultra-pure water | Hideaki Kurokawa, Akira Yamada, Yasuo Koseki, Harumi Matsuzaki, Sankichi Takahashi +5 more | 1989-11-07 |
| 4861383 | Process for recovering subterranean stem starch and protein | Masahiko Ishida, Ryooichi Haga, Yoji Odawara, Sankichi Takahashi | 1989-08-29 |
| 4783277 | Absorption-type refrigerator | Yasuo Koseki, Akira Yamada, Hideaki Kurokawa, Sankichi Takahashi | 1988-11-08 |
| 4746437 | Method and apparatus for concentration aqueous solution and method and apparatus for recovering temperature | Yasuo Koseki, Sankichi Takahashi, Osamu Kuroda, Hideaki Kurokawa | 1988-05-24 |
| 4698153 | Apparatus for producing ultra-pure water by ion exchange resin | Harumi Matsuzaki, Masayoshi Kubota, Sankichi Takahashi, Minoru Kuroiwa | 1987-10-06 |
| 4670137 | Impurity detector | Yasuo Koseki, Sankichi Takahashi, Kazuhiko Matsuoka, Minoru Kuroiwa, Akira Yamada | 1987-06-02 |
| 4638646 | Heat storing apparatus | Yasuo Koseki, Akira Yamada, Hideki Kurokawa, Harumi Matsuzaki, Sankichi Takahashi | 1987-01-27 |
| 4619768 | Method of removing crude oil sludge | Sankichi Takahashi, Harumi Matsuzaki, Toshimi Mukushi, Tsunehiko Takakusagi, Masahiro Yoshida +4 more | 1986-10-28 |
| 4505824 | Method and apparatus for purifying liquid using an electromagnetic filter | Kazuhiko Akamine, Kazuyuki Ito, Shinji Mitani | 1985-03-19 |
| 4389253 | Process for removing crud from ion exchange resin | Shigeoki Nishimura, Toshio Ogawa, Sankichi Takahashi | 1983-06-21 |
| 4255255 | Tubular membrane separation process and apparatus therefor | Toshio Ogawa, Sankichi Takahashi | 1981-03-10 |
| 4198293 | Tubular membrane separation process and apparatus therefor | Toshio Ogawa, Sankichi Takahashi | 1980-04-15 |