Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6469696 | Position detector | Yoshifumi Ishimura | 2002-10-22 |
| 6297812 | Information display system for electronically reading a book | Makoto Ohara, Shinichirou Sugiura | 2001-10-02 |
| 6052117 | Information display system for electronically reading a book | Makoto Ohara, Shinichirou Sugiura | 2000-04-18 |
| 5485176 | Information display system for electronically reading a book | Makoto Ohara, Shinichirou Sugiura | 1996-01-16 |
| 5092808 | Air action toy system | Akira Takasaka, Eiji Takuma | 1992-03-03 |