Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7905592 | Rimless eyeglasses | — | 2011-03-15 |
| 7210216 | Method of producing superconducting wire | Kunihiko Egawa, Yoshio Kubo, Takayuki Nagai, Takanori Sone, Masayoshi Wake | 2007-05-01 |
| 7131726 | Spectacle frame and lens hanger | — | 2006-11-07 |
| 6767096 | Eyeglass with connection structure for rimless eyeglass and screwless hinge | — | 2004-07-27 |