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, Hirohide Munakata, Satoshi Yuasa, Etsuko Sugawa | 1989-10-10 |
YK
Yoko Kuwae
Overall (1989): #40,851 of 140,708Top 30%
1
Patents 1989