Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5323770 | Mouth cavity sanitary device | Kazumasa Ito, Masaki Ohbayashi, Shoji Koike, Jun Yoshida | 1994-06-28 |
| 5246367 | Mouth cavity sanitary device | Kazumasa Ito, Masaki Ohbayashi, Shoji Koike, Jun Yoshida | 1993-09-21 |
| 5197458 | Mouth cavity sanitary device | Kazumasa Ito, Masaki Ohbayashi, Shoji Koike, Jun Yoshida | 1993-03-30 |
| 5197460 | Mouth cavity sanitary device | Kazumasa Ito, Masaki Ohbayashi, Shoji Koike, Jun Yoshida | 1993-03-30 |