Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE36675 | Game apparatus and memory cartridge used therefor | Masao Yamamoto, Takahiro Harada | 2000-04-25 |
| 5265888 | Game apparatus and memory cartridge used therefor | Masao Yamamoto, Takahiro Harada | 1993-11-30 |