Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4865321 | Memory cartridge and information processor unit using such cartridge | Katsuya Nakagawa | 1989-09-12 |
| D299726 | Video game control unit | — | 1989-02-07 |
MY
Masayuki Yukawa
Overall (1989): #20,201 of 140,708Top 15%
2
Patents 1989