Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4873178 | Optical recording medium and method for conducting recording on said medium | Masahiro Haruta, Yoko Kuwae, Hirohide Munakata, Satoshi Yuasa | 1989-10-10 |
ES
Etsuko Sugawa
Overall (1989): #116,056 of 140,708Top 85%
1
Patents 1989