Issued Patents 2002
Showing 1–2 of 2 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, Manabu Iwai, Katsuhiko Ohtomo, Tomiji Tanaka, Hiroshi Nakayama +1 more | 2002-11-26 |
| 6335916 | Optical recording medium, stamper for use to produce the optical recording medium, and method of producing the stamper | Somei Endo | 2002-01-01 |