Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6351449 | Optical disk with recesses inside an inner circumference of an information recording area and method of making same | Hiroyuki Takemoto | 2002-02-26 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6351449 | Optical disk with recesses inside an inner circumference of an information recording area and method of making same | Hiroyuki Takemoto | 2002-02-26 |