Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11130092 | Method for concentrating ozone gas and apparatus for concentrating ozone gas | Koichi Izumi, Naohisa Makihira | 2021-09-28 |
| 11123679 | Method for concentrating ozone gas and apparatus for concentrating ozone gas | Koichi Izumi, Naohisa Makihira | 2021-09-21 |
| 9080131 | Method for producing high concentration ozonated water and device for producing high concentration ozonated water | Kunihiko Koike, Naohisa Makihira, Koichi Izumi, Goichi Inoue, Norikazu Hohshi +1 more | 2015-07-14 |
| 8945278 | Method and apparatus for concentrating ozone gas | Naohisa Makihira, Goichi Inoue, Kunihiko Koike | 2015-02-03 |
| 8404022 | Method of concentrating ozone gas and apparatus therefor | Kunihiko Koike, Naohisa Makihira, Koichi Izumi, Shigenori Takatori | 2013-03-26 |
| 8012241 | Method and apparatus for condensing ozone gas | Kunihiko Koike, Koichi Izumi, Goichi Inoue | 2011-09-06 |