Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6761173 | Ear plug to be inserted into the external auditory canal | Kenjiro Owada, Masahiko Ohgushi | 2004-07-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6761173 | Ear plug to be inserted into the external auditory canal | Kenjiro Owada, Masahiko Ohgushi | 2004-07-13 |