Issued Patents All Time
Showing 76–87 of 87 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4682152 | Digital data companding | Hiroo Okamoto, Takao Arai | 1987-07-21 |
| 4590524 | Multitrack PCM reproducing apparatus | Hiroo Okamoto, Masaharu Kobayashi, Masami Nishida | 1986-05-20 |
| 4539605 | PCM Tape recording and reproducing apparatus having a dropout-immune data recording format | Takao Arai, Keizo Nishimura | 1985-09-03 |
| 4497055 | Data error concealing method and apparatus | Takao Arai | 1985-01-29 |
| 4491880 | Magnetic recording and/or reproducing apparatus | Noboru Kojima, Yoshizumi Watatani, Takao Arai, Toshifumi Shibuya | 1985-01-01 |
| 4467370 | PCM Recorder with pause controlled signal rearranging | Hiromichi Tanaka | 1984-08-21 |
| 4420775 | Circuit and method for protecting a horizontal synchronous signal | Shigeru Yamazaki, Takao Arai, Masaharu Kobayashi, Chitoshi Hibino, Harukuni Kobari | 1983-12-13 |
| 4393419 | Synchronizing signal detection protective circuit | Takao Arai, Masaharu Kobayashi | 1983-07-12 |
| 4367499 | Tape searching device in PCM recording and reproducing apparatus | Takao Arai | 1983-01-04 |
| 4309726 | Muting circuit in a PCM recording and reproducing apparatus | Hiromichi Tanaka, Takao Arai | 1982-01-05 |
| 4242472 | Vulcanizable rubber composition improved in sulfur blooming with metal alkylxanthate | Setsuko Imaizumi, Seisuke Tomita | 1980-12-30 |
| 4238770 | Vertical synchronizing signal detector circuit | Masaharu Kobayashi, Takao Arai, Hiroyuki Kimura, Keizo Nishimura | 1980-12-09 |