Issued Patents All Time
Showing 26–31 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6052661 | Speech encoding apparatus and speech encoding and decoding apparatus | Hirohisa Tasaki, Shinya Takahashi | 2000-04-18 |
| 5724480 | Speech coding apparatus, speech decoding apparatus, speech coding and decoding method and a phase amplitude characteristic extracting apparatus for carrying out the method | — | 1998-03-03 |
| 5175840 | Microcomputer having a PROM including data security and test circuitry | Terumi Sawase, Hideo Nakamura, Yoshimune Hagiwara, Toshimasa Kihara, Kiyoshi Matsubara | 1992-12-29 |
| 4905142 | Semiconductor integrated circuit device with built-in arrangement for memory testing | Kiyoshi Matsubara | 1990-02-27 |
| 4860087 | Semiconductor device and process for producing the same | Kiyoshi Matsubara, Toshimasa Kihara, Norishige Kawashimo | 1989-08-22 |
| 4777586 | Semiconductor integrated circuit device with built-in arrangement for memory testing | Kiyoshi Matsubara | 1988-10-11 |