Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7384553 | Method for operating anaerobic ammonium oxidation vessel and anaerobic ammonium oxidation equipment | Kazuichi Isaka | 2008-06-10 |
| 7267764 | Apparatus for removing nitrogen | Kazuichi Isaka | 2007-09-11 |
| 7192765 | Method for producing a nitrification carrier and for removing nitrogen | Kazuichi Isaka | 2007-03-20 |
| 7144508 | Method and apparatus of removing nitrogen | Kazuichi Isaka | 2006-12-05 |
| 7105337 | Method of removing exogenous endocrine-disrupting chemical in water | Kazuichi Isaka | 2006-09-12 |
| 6916651 | Heat treated immobilized microorganism support for enviroment remediation | — | 2005-07-12 |
| 6576451 | Oligomers for polymerizing to produce hydrous gels entrapping microorganisms | Naomichi Mori, Tamio Igarashi, Hiroyoshi Emori, Minoru Kayanoki, Takayuki Nakamura +2 more | 2003-06-10 |
| 6033569 | Method of biologically removing nitrogen and system therefor | Nobuko Hashimoto, Hiroki Nakamura, Kazuhiko Noto, Takako Ogasawara, Masaaki Shirai +2 more | 2000-03-07 |
| 5997736 | Method of biologically removing nitrogen and system therefor | Nobuko Hashimoto, Hiroki Nakamura, Kazuhiko Noto, Takako Ogasawara, Masaaki Shirai +2 more | 1999-12-07 |
| 5976378 | Method and system for removing nitrogen and immobilized microorganisms | Nobuko Hashimoto, Kazuhiko Noto, Takako Ogasawara | 1999-11-02 |
| 5876603 | Method of biologically removing nitrogen and system therefor | Nobuko Hashimoto, Hiroki Nakamura, Kazuhiko Noto, Takako Ogasawara, Masaaki Shirai +2 more | 1999-03-02 |
| 5849180 | Method of biologically removing nitrogen and system therefor | Nobuko Hashimoto, Hiroki Nakamura, Kazuhiko Noto, Takako Ogasawara, Masaaki Shirai +2 more | 1998-12-15 |
| 5061368 | System for treating waste water by nitrification | Minoru Tada, Syouji Harada, Syuzo Koike, Yukio Kawaguchi, Tamotsu Mizuguchi +7 more | 1991-10-29 |
| 4791061 | Immobilization of microorganisms by entrapment | Yasutomo Ohtake, Hiroki Nakamura, Masahiro Kon, Naomichi Mori, Kazuo Nakajima | 1988-12-13 |