Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8631804 | Clip for wig | Kazuhiro Umezu, Tetsuhiro Matsuda | 2014-01-21 |
| D630801 | Clip for a wig | Kazuhiro Umezu, Tetsuhiro Matsuda | 2011-01-11 |
| 7836899 | Wig and method of manufacturing the same | Hiroko Sugai, Takashi Sato, Chisato Honma | 2010-11-23 |
| D622004 | Clip for a wig | Kazuhiro Umezu, Tetsuhiro Matsuda | 2010-08-17 |