Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7320759 | Sludge treatment method | Nozomu Yasunaga, Toshiyuki Kamiya, Naoki Nakatsugawa | 2008-01-22 |
| 7288191 | Sludge treatment apparatus | Nozomu Yasunaga, Toshiyuki Kamiya, Naoki Nakatsugawa | 2007-10-30 |
| 7070747 | Process of eluting and recovering phosphorus from sludge | Nozomu Yasunaga, Seiji Furukawa | 2006-07-04 |
| 7063794 | Water treatment apparatus | Miki Kamimura, Seiji Furukawa, Satoshi Ueyama | 2006-06-20 |
| 6884355 | Process for treating organic wastewater and apparatus for treating the organic wastewater | Toshiyuki Kamiya, Nozomu Yasunaga, Seiji Furukawa, Naoki Nakatsugawa | 2005-04-26 |
| 6878284 | Method and apparatus of treating water containing a nitrogen compound | Yoshitaka Hasegawa, Brahim Messaoudi, Toshiyuki Kamiya | 2005-04-12 |
| 6589397 | Electric energy converting/storing method | Yasuhiro Tanimura, Masaki Kuzumoto, Shigeki Nakayama, Osamu Matsuoka, Masao Nozaki | 2003-07-08 |
| 6537508 | Electric energy converting/storing system | Yasuhiro Tanimura, Masaki Kuzumoto, Shigeki Nakayama, Osamu Matsuoka, Masao Nozaki | 2003-03-25 |
| 6495109 | Ozone supplying apparatus | Yasuhiro Tanimura, Shigeki Nakayama, Hisao Amitani, Hiroshi Yuge, Tateki Ozawa | 2002-12-17 |
| 6315962 | Ozone producing apparatus | Yasuhiro Tanimura, Shigeki Nakayama, Hisao Amitani, Hiroshi Yuge, Tateki Ozawa | 2001-11-13 |
| 6303034 | Waste water ozonization process and apparatus | Toshiyuki Kamiya, Satoru Shiono, Seiji Furukawa | 2001-10-16 |
| 6228331 | Ozone supplying apparatus | Yasuhiro Tanimura, Shigeki Nakayama, Hisao Amitani, Hiroshi Yuge, Tateki Ozawa | 2001-05-08 |
| 6214298 | Ozone producing apparatus responsive to an abnormal driving condition | Yasuhiro Tanimura, Shigeki Nakayama, Hisao Amitani, Hiroshi Yuge, Tateki Ozawa | 2001-04-10 |
| 6214240 | Method for ozone treatment using a mixture of ozone and hydrogen peroxide | Nozomu Yasunaga, Seiji Furukawa, Yoshitaka Kawaai, Shigeki Nakayama | 2001-04-10 |
| 6086772 | Method and apparatus for preventing biofouling in cooling water system | Yasuhiro Tanimura, Shigeki Nakayama, Hisao Amitani, Hiroshi Yuge, Tateki Ozawa | 2000-07-11 |
| 6083464 | Ozone supplying apparatus with fluid purification and recycling | Yasuhiro Tanimura, Shigeki Nakayama, Hisao Amitani, Hiroshi Yuge, Tateki Ozawa | 2000-07-04 |
| 6054102 | Ozone producing apparatus utilizing feedback control from ozone density measurement | Yasuhiro Tanimura, Shigeki Nakayama, Hisao Amitani, Hiroshi Yuge, Tateki Ozawa | 2000-04-25 |
| 5888271 | Ozone storing method and ozone storage system | Yasuhiro Tanimura, Masaki Kuzumoto, Shigeki Nakayama | 1999-03-30 |