Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7966691 | Dust collector | Masahiro Inaniwa, Yoshimasa Hayama, Daisuke Kakegawa | 2011-06-28 |
| 7871463 | Dust collection device | Yoshimasa Hayama, Daisuke Kakegawa, Masahiro Inaniwa | 2011-01-18 |
| 5477154 | An EDP checker including a matching circuit | Shun Suzuki, Toshiaki Koizumi | 1995-12-19 |