Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6487164 | Optical recording medium capable of assuring sufficient levels of signals required for reading/writing data, and stamper for manufacture of the same | Sohmei Endoh, Katsuhiko Ohtomo, Tomiji Tanaka, Hiroshi Nakayama, Masayoshi Kanno +1 more | 2002-11-26 |