Issued Patents All Time
Showing 26–40 of 40 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5184346 | Switching system | Takahiko Kozaki, Kenichi Asano, Mineo Ogino, Noboru Endo, Yoshito Sakurai | 1993-02-02 |
| 5113392 | Communication apparatus for reassembling packets received from network into message | Yoshihiro Takiyasu, Mitsuhiro Yamaga, Kazunori Nakamura, Hidehiko Jusa, Naoya Kobayashi +3 more | 1992-05-12 |
| 5103447 | High-speed ring LAN system | Yoshihiro Takiyasu, Toshiki Tanaka, Taihei Suzuki, Yukiji Yamauchi, Mitsuhiro Yamaga +2 more | 1992-04-07 |
| 5091905 | High-speed packet switching using a space division optical switch | — | 1992-02-25 |
| 5043979 | Time-division channel arrangement | Yoshito Sakurai, Shinobu Gohara, Kenichi Ohtsuki, Takao Kato, Hiroshi Kuwahara | 1991-08-27 |
| 4841521 | Method and system for bidirectionally transmitting data | Hirotoshi Shirasu, Hiroshi Takatori, Tohru Kazawa, Toshiro Suzuki, Takanori Miyamoto +1 more | 1989-06-20 |
| 4796296 | PCM coder and decoder having function of two-wire/four-wire conversion | Kazuo Yamakido, Takahiko Kozaki, Shigeo Nishita, Masaru Kokubo | 1989-01-03 |
| 4665507 | Semiconductor memory having load devices controlled by a write signal | Takafumi Gondou, Kenichi Asano | 1987-05-12 |
| 4633460 | Time division switching system | Taihei Suzuki, Takashi Morita, Hirotoshi Shirasu, Hiroshi Kuwahara | 1986-12-30 |
| 4608464 | Interface circuit interconnecting a bidirectional two-wire line with unidirectional four-wire lines | Yuichi Morikawa, Hirohiko Sato, Toshiro Suzuki, Hirotoshi Shirasu, Hiroshi Kuwahara | 1986-08-26 |
| 4558185 | Subscriber line interface circuit with complex impedance | Yuichi Morikawa, Kazuo Saito, Hirotoshi Shirasu | 1985-12-10 |
| 4543652 | Time-division switching unit | Hiroshi Kuwahara, Hirotoshi Shirasu, Taihei Suzuki, Takashi Morita | 1985-09-24 |
| 4305133 | Recursive type digital filter | Makoto Ohnishi, Hiroshi Kuwahara | 1981-12-08 |
| 4223389 | Recursive digital filter having means to prevent overflow oscillation | Makoto Ohnishi | 1980-09-16 |
| 4209771 | Code converting method and system | Masachika Miyata | 1980-06-24 |