Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817724 | Triangular pyramidal cube corner retroreflection element | Ikuo Mimura, Yutaka Hamada, Akihiro Matsuda | 2004-11-16 |
| 6795834 | Apparatus, method, and storage medium for file management | Yasuyuki Higashiura, Takumi Kishino, Seigo Kotani, Keizo Sato, Hiroki Inoue | 2004-09-21 |