Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4620292 | Arithmetic logic unit for floating point data and/or fixed point data | Yoshimune Hagiwara, Shizuo Sugiyama, Narimichi Maeda, Osamu Yumoto, Takashi Akazawa +2 more | 1986-10-28 |
| 4592006 | Adder for floating point data suitable for digital signal processing | Yoshimune Hagiwara, Shizuo Sugiyama, Narimichi Maeda, Osamu Yumoto, Takashi Akazawa +2 more | 1986-05-27 |
| 4531089 | Electric power detecting circuit and gain control circuit using the same | Kohei Ishizuka, Narimichi Maeda, Masahiro Koya, Kazuhiko Takaoka, Yoshiro Kokuryo | 1985-07-23 |
| 4511990 | Digital processor with floating point multiplier and adder suitable for digital signal processing | Yoshimune Hagiwara, Shizuo Sugiyama, Narimichi Maeda, Osamu Yumoto, Takashi Akazawa +2 more | 1985-04-16 |
| 4477913 | Automatic equalizer apparatus | Masahiro Koya, Narimichi Maeda, Kohei Ishizuka, Kazuhiko Takaoka, Yoshiro Kokuryo | 1984-10-16 |
| 4441192 | Signal processing system having impulse response detecting circuit | Nobuo Tsukamoto, Masahiro Koya, Narimichi Maeda | 1984-04-03 |
| 4292596 | Gain control circuit | Kohei Ishizuka, Narimichi Maeda | 1981-09-29 |
| 4204176 | Variable equalizer | Yoshitaka Takasaki, Junichi Nakagawa, Kohei Ishizuka | 1980-05-20 |
| 4187479 | Variable equalizer | Kohei Ishizuka, Yoshitaka Takasaki, Yoshinori Nagoya, Takeo Kusama | 1980-02-05 |