Issued Patents All Time
Showing 26–36 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5226167 | Microcomputer circuit for attenuating oscillations in a resonant circuit by reversing phase and feeding back resonant circuit output oscillation voltage | — | 1993-07-06 |
| 5160856 | Reference voltage regulator semiconductor integrated circuit | Etsushi Takebayashi | 1992-11-03 |
| 5159183 | IC card | — | 1992-10-27 |
| 5068521 | Non-contact IC card | — | 1991-11-26 |
| 5056089 | Memory device | Shigeru Furuta, Kenichi Takahira, Takesi Inoue, Toshiyuki Matsubara, Shuzo Fujioka | 1991-10-08 |
| 5047924 | Microcomputer | Shuzo Fujioka, Toshiyuki Matsubara, Kenichi Takahira, Shigeru Furuta, Takesi Inoue | 1991-09-10 |
| 5039850 | IC card | — | 1991-08-13 |
| 5036460 | Microprocessor having miswriting preventing function | Kenichi Takahira, Shigeru Furuta, Takesi Inoue, Toshiyuki Matsubara, Shuzo Fujioka | 1991-07-30 |
| 5019970 | IC card | Kenichi Takahira, Shigeru Furuta, Takesi Inoue, Toshiyuki Matsubara, Shuzo Fujioka | 1991-05-28 |
| 5016212 | IC card having system ROM selection inhibit | Shigeru Furuta, Takesi Inoue, Kenichi Takahira, Shuzo Fujioka, Toshiyuki Matsubara | 1991-05-14 |
| 4924465 | Memory with function test of error detection/correction device | Toshiyuki Matsubara, Shuzo Fujioka, Kenichi Takahira, Shigeru Furuta, Takesi Inoue | 1990-05-08 |