Issued Patents All Time
Showing 25 most recent of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6896858 | Gas refining system | Atsushi Tatani, Makoto Susaki, Taku Shimizu, Toshikuni Sera, Kenji Inoue | 2005-05-24 |
| 6863875 | Flue gas treating system and process | Shinichiro Kotake, Kazumitsu Suzuki, Naohiko Ukawa, Toru Takashina | 2005-03-08 |
| 6773680 | Combustion exhaust gas treatment system | Taku Shimizu, Kiyoshi Okazoe, Atsushi Tatani, Naohiko Ukawa, Masao Hino +4 more | 2004-08-10 |
| 6759982 | Radio direction and position finding apparatus | Hayato Akazawa, Eiji Kobayashi, Tsugihiro Kurihara, Kazutaka Iwase | 2004-07-06 |
| 6740297 | Combustion exhaust gas treatment system | Taku Shimizu, Kiyoshi Okazoe, Atsushi Tatani, Naohiko Ukawa, Masao Hino +4 more | 2004-05-25 |
| 6517792 | Combustion exhaust gas treatment system | Taku Shimizu, Kiyoshi Okazoe, Atsushi Tatani, Naohiko Ukawa, Masao Hino +4 more | 2003-02-11 |
| 6511636 | Combustion exhaust gas treatment system | Taku Shimizu, Kiyoshi Okazoe, Atsushi Tatani, Naohiko Ukawa, Masao Hino +4 more | 2003-01-28 |
| 6480264 | Laser beam detecting device | Yoshiyuki Usami | 2002-11-12 |
| 6450267 | Construction equipment control system | Fumio Ohtomo | 2002-09-17 |
| 6442862 | Displacement measuring apparatus | Jun Sasagawa, Yohei Ogawa, Yasutaka Katayama, Shuichi Sasaki | 2002-09-03 |
| 6427780 | Communication system for surveying instrument | — | 2002-08-06 |
| 6203598 | Flue gas treating process and system | Shigeo Hasegawa, Naohiko Ukawa, Susumu Okino, Koichiro Iwashita, Atsushi Yoshioka +4 more | 2001-03-20 |
| 6171018 | Automatic control system for construction machinery | Fumio Ohtomo, Vernon Joseph Brabec, Satoshi Hirano, Makoto Omori | 2001-01-09 |
| 6113863 | Combustion exhaust gas treatment system | Taku Shimizu, Kiyoshi Okazoe, Atsushi Tatani, Naohiko Ukawa, Masao Hino +4 more | 2000-09-05 |
| 6096279 | Flue gas treating process and system | Koichiro Iwashita, Toyoshi Nakagawa, Naohiko Ukawa, Susumu Okino, Kiyoshi Okazoe | 2000-08-01 |
| 6051055 | Exhaust gas desulfurization system | Naohiko Ukawa, Toru Takashina, Susumu Okino, Koichiro Iwashita, Kouji Ikeda +1 more | 2000-04-18 |
| 6023326 | Surveying system | Yasutaka Katayama, Jun Sasagawa, Kazushige Koshikawa | 2000-02-08 |
| 6016455 | Automatic control system for construction machinery | Fumio Ohtomo, Vernon Joseph Brabec, Satoshi Hirano, Makoto Omori | 2000-01-18 |
| 6014220 | Automatic control system for construction machinery | — | 2000-01-11 |
| 6001154 | Gas-liquid contact apparatus | Shinichiro Kotake, Eiji Ochi, Toru Takashina, Susumu Okino | 1999-12-14 |
| 5980846 | Gas refining system | Atsushi Tatani, Makoto Susaki, Toshikuni Sera, Kenji Inoue | 1999-11-09 |
| 5902555 | Wet flue gas desulfurization process and system | Atsushi Tatani, Yoshio Nakayama, Yukio Kitamura, Masakazu Onizuka | 1999-05-11 |
| 5878675 | Flue gas desulfurizer, boiler equipment and thermal electric power generation equipment | Masaki Iijima, Atsushi Tatani, Koichiro Iwashita, Satoshi Yajima, Toru Takashina +1 more | 1999-03-09 |
| 5824273 | Gas refining system | Atsushi Tatani, Makoto Susaki, Taku Shimizu, Toshikuni Sera, Kenji Inoue | 1998-10-20 |
| 5771978 | Grading implement elevation controller with tracking station and reference laser beam | Richard W. Davidson, Fumio Ohtomo, Satoshi Hirano | 1998-06-30 |