Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479026 | Method of denitrating exhaust gas | Kozo Iida, Shigeru Nojima, Yoshiaki Obayashi | 2002-11-12 |
| 6156698 | Honeycomb catalyst and manufacturing method therefor | Kozo Iida, Shigeru Nojima, Yoshiaki Obayashi, Osamu Naito | 2000-12-05 |
| 6025298 | Catalyst and process for the production thereof | Kiyoaki Imoto, Jun Tanabe, Osamu Naito, Shuya Nagayama | 2000-02-15 |
| 6025292 | Method for the regeneration of a denitration catalyst | Yoshiaki Obayashi, Kouzo Iida, Osamu Naito, Akira Hattori | 2000-02-15 |
| 5897687 | Ammonia adsorption apparatus | Teruko Shimada, Toshiyuki Onishi, Satoru Serizawa, Osamu Naito, Shigeyuki Nishijima | 1999-04-27 |
| 5869419 | Nitrogen oxide removal catalyst | Yoshiaki Obayashi, Kozo Iida, Shigeru Nojima, Osamu Naito | 1999-02-09 |
| 5697403 | Denitrification system | Toshiyuki Onishi, Shigeyuki Nishijima | 1997-12-16 |
| 5687656 | Denitration apparatus for a caol-fired boiler | Shozo Kaneko, Norihisa Kobayashi, Kouhei SUYAMA | 1997-11-18 |
| 5680884 | Rectifying device | Shigeyuki Nishijima, Masaaki Taniguchi, Osamu Naito | 1997-10-28 |
| 5679314 | Method for recovering ammonia adsorbent | Satoru Serizawa, Osamu Naito, Toshiyuki Onishi, Kouzo Iida | 1997-10-21 |
| 5677254 | Catalyst for purifying an exhaust gas | Shigeru Nojima, Kozo Iida, Norihisa Kobayashi, Satoru Serizawa | 1997-10-14 |
| 5589146 | Method for treating ammonia | Osamu Naito, Toshiyuki Onishi, Hitoshi Nakamura, Kouzo Iida | 1996-12-31 |
| 5505919 | Method for the denitration of exhaust gas | Satoru Serizawa, Osamu Naito, Masanori Demoto, Toshiyuki Onishi, Norihisa Kobayashi +1 more | 1996-04-09 |
| 5431894 | Prevention of ammonia decomposition | Toshiyuki Onishi, Shozo Kaneko, Satoru Serizawa, Toshihiko Imamoto, Osamu Naito | 1995-07-11 |
| 4925640 | Method for denitration of exhaust gas containing arsenic compounds by catalysts and method | Toshio Koyanagi, Hiromu Takatsuka, kouzou Iida | 1990-05-15 |
| 4869735 | Adsorbent for arsenic compound and method for removing arsenic compound from combustion gas | Masaki Miyazawa, Norihisa Kobayashi, Hiromu Takatsuka, Toshio Koyanagi, Touru Seto +9 more | 1989-09-26 |
| 4857276 | Apparatus for treating exhaust gas | Toru Seto, Shigeaki Mitsuoka, Norihisa Kobayashi | 1989-08-15 |
| 4796545 | Apparatus for treating combustion exhaust gas | Katsuo Hashizaki, Toshio Koyanagi | 1989-01-10 |