Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6214240 | Method for ozone treatment using a mixture of ozone and hydrogen peroxide | Nozomu Yasunaga, Junji Hirotsuji, Seiji Furukawa, Shigeki Nakayama | 2001-04-10 |
| 5323567 | Plant cultivating apparatus | Shigeki Nakayama, Akira Ikeda, Kenji Ezaki, Yasuko Taniguchi, Yoshinori Hattori +3 more | 1994-06-28 |