Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5793199 | Method and apparatus for determining magnetic powder concentration by using the electromagnetic induction method | Yoshihisa Nozawa, Masanori Miyoshi, Osamu Kitamura | 1998-08-11 |
| 4885929 | Ozone gas sensor and ozone gas detecting device having ozone gas sensor | Tadashi Takada | 1989-12-12 |