Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4805136 | Program protection in a programmable electronic calculator | Yoshiyuki Fujikawa, Isamu Haneda, Tetsuo Myoi | 1989-02-14 |
| 4718029 | Display device for a programmable electronic calculator | Yoshiyuki Fujikawa, Isamu Haneda, Tetsuo Myoi | 1988-01-05 |
| 4655551 | Liquid crystal display with chip projecting above and below flexible film | Isamu Washizuka, Tamaki Mashiba | 1987-04-07 |
| 4636970 | Personal type computer with execution of programs in ROM and RAM | Yoshiyuki Fujikawa, Isamu Haneda, Tetsuo Myoi | 1987-01-13 |
| 4617650 | Memory module for a programmable electronic device | Yuji Takada | 1986-10-14 |
| 4531194 | Tape recorder drive system in a programmable electronic calculator | Yoshiyuki Fujikawa, Isamu Haneda, Tetsuo Myoi | 1985-07-23 |
| 4185170 | Programmable synthetic-speech calculators or micro computers | Shintaro Hashimoto | 1980-01-22 |