Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7410573 | Waste water purification apparatus and waste water purification method including the regeneration of used coagulant | Norihide Saho, Hisashi Isogami | 2008-08-12 |
| 6093318 | Magnetic purifying apparatus for purifying a fluid | Norihide Saho, Hisashi Isogami, Minoru Morita, Fumitaka Handa | 2000-07-25 |
| 5932096 | Magnetic purifying apparatus for purifying a fluid | Norihide Saho, Hisashi Isogami, Minoru Morita, Fumitaka Handa | 1999-08-03 |
| 4975405 | Hydrated silica gel for stabilization treatment of beer | Katsutoshi Okamura, Yasuo Esaki, Koichi Matsuzawa | 1990-12-04 |
| 4887059 | Iron core of electromagnet and method of producing the same | Hiroshi Hashimoto | 1989-12-12 |
| 4880650 | Method for stabilization treatment of beer with hydrated silica gel | Katsutoshi Okamura, Yasuo Esaki, Koichi Matsuzawa | 1989-11-14 |
| 4654961 | Method for producing superconducting coil | Isao Kurita, Isamu Kamishita | 1987-04-07 |