Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8657937 | Dust collector | Ryuuji Akiyama, Shunji Haruna, Toshio Tanaka | 2014-02-25 |
| 8465575 | Dust collector | Toshio Tanaka, Tsunahiro Ohdou | 2013-06-18 |
| 8454733 | Air handling device | Toshio Tanaka, Shunji Haruna, Ryuji Akiyama | 2013-06-04 |
| 8454734 | Charging device, air handling device, method for charging, and method for handling air | Shunji Haruna, Toshio Tanaka, Ryuji Akiyama | 2013-06-04 |
| 8419841 | Air processing device | Toshio Tanaka, Tsunahiro Ohdou | 2013-04-16 |
| 8192535 | Dust collector | Toshio Tanaka, Ryuji Akiyama, Tsunahiro Odo, Shunji Haruna | 2012-06-05 |
| 8192536 | Dust collector | Toshio Tanaka, Ryuji Akiyama, Tsunahiro Odo, Shunji Haruna | 2012-06-05 |
| 7753994 | Discharge device and air purifier | Kenkichi Kagawa, Toshio Tanaka, Ryuji Akiyama | 2010-07-13 |
| 7722707 | Air conditioner | Toshio Tanaka, Kenkichi Kagawa, Ryuji Akiyama | 2010-05-25 |
| 7651548 | Discharge device and air purification device | Toshio Tanaka, Kenkichi Kagawa | 2010-01-26 |
| 7569100 | Air purification device | Toshio Tanaka, Kenkichi Kagawa, Mitsuhisa Nagao, Kiyohito Hamaguchi, Tomoharu Tanzo | 2009-08-04 |
| 7465339 | Air purifier | Toshio Tanaka, Kenkichi Kagawa | 2008-12-16 |
| 7377962 | Electric discharge device and air purifying device | Toshio Tanaka, Kenkichi Kagawa | 2008-05-27 |
| 7332020 | Gas treating device | Toshio Tanaka, Kenkichi Kagawa | 2008-02-19 |
| 7270698 | Discharge device and air purifier | Toshio Tanaka, Kenkichi Kagawa | 2007-09-18 |
| 7042159 | Plasma reactor and purification equipment | Toshio Tanaka, Kenkichi Kagawa, Toshikazu Ohkubo | 2006-05-09 |
| 5314111 | Packaging box and sheet for packaging box | Yutaka Takaku, Toshihiro Suzuki, Jiro Wake, Masakatu Yanazawa | 1994-05-24 |