Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644172 | Sliding device | Seiichi Nakayama, Akira Takenaka | 2003-11-11 |
| 6626084 | Semi-spherical shoe | Seiichi Nakayama, Akira Takenaka | 2003-09-30 |
| 6532664 | Method of manufacturing shoe | Yoshiaki Kitagawa, Masanori Akizuki, Hiroyuki Asano | 2003-03-18 |