Issued Patents All Time
Showing 26–50 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7272314 | Optical crossconnect apparatus and optical transmission system | Yasuyuki Fukashiro, Yukio Hayashi, Shigeki Kitajima, Tatsuo Kanetake, Shoichi Hanatani +1 more | 2007-09-18 |
| 7193999 | Reception system for replacing transport packets | Hidekazu Suzuki | 2007-03-20 |
| 7167652 | Optical transmission system constructing method and system | Keiji Tomooka, Naohiro Sakakida, Shin Nishimura, Yoshihiro Ashi, Hironari Matsuda +6 more | 2007-01-23 |
| 7139479 | Method and apparatus for optical network administration | Masaki Ohira, Yuichi Yamaguchi, Toshiyuki Atsumi, Tomohiro Mori, Ryuji Ishii +2 more | 2006-11-21 |
| 7024616 | Method for encoding/decoding error correcting code, transmitting apparatus and network | Masaki Ohira, Takashi Mori | 2006-04-04 |
| 6980553 | Router apparatus using ATM switch | Kazuho Miki, Akihiko Takase, Masaru Murakami, Koji Wakayama, Tetsuro Yoshimoto +1 more | 2005-12-27 |
| 6975811 | Optical one-to-one protection switching apparatus | Sunao Kakizaki, Hideaki Tsushima, Takashi Mori, Yukio Hayashi, Shinichi Kuwano | 2005-12-13 |
| 6813445 | Optical crossconnect apparatus and optical transmission system | Yasuyuki Fukashiro, Yukio Hayashi, Shigeki Kitajima, Tatsuo Kanetake, Shoichi Hanatani +1 more | 2004-11-02 |
| 6728489 | Optical transmission system constructing method and system | Keiji Tomooka, Naohiro Sakakida, Shin Nishimura, Yoshihiro Ashi, Hironari Matsuda +6 more | 2004-04-27 |
| 6424662 | Router apparatus using ATM switch | Kazuho Miki, Akihiko Takase, Masaru Murakami, Koji Wakayama, Tetsuro Yoshimoto +1 more | 2002-07-23 |
| 6385171 | Router apparatus using ATM switch | Akihiko Takase, Kazuho Miki, Masaru Murakami, Koji Wakayama, Tetsuro Yoshimoto +1 more | 2002-05-07 |
| 6362905 | Optical crossconnect apparatus and optical transmission system | Yasuyuki Fukashiro, Yukio Hayashi, Shigeki Kitajima, Tatsuo Kanetake, Shoichi Hanatani +1 more | 2002-03-26 |
| 6266169 | Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal | Keiji Tomooka, Naohiro Sakakida, Shin Nishimura, Yoshihiro Ashi, Hironari Matsuda +6 more | 2001-07-24 |
| 6252629 | Timer-recording controller for controlling a timer-recording apparatus used to record a broadcast audio signal, a broadcast video signal, or a broadcast data signal | — | 2001-06-26 |
| 6097505 | Communication apparatus and communication control method | Tetsuji Miwa, Shigeru Kamata, Fuyuki Abe, Satoshi Matsuura, Hidemi Henmi | 2000-08-01 |
| 6046999 | Router apparatus using ATM switch | Kazuho Miki, Akihiko Takase, Masaru Murakami, Koji Wakayama, Tetsuro Yoshimoto +1 more | 2000-04-04 |
| 6034954 | Multiplexing apparatus for transit of signals between service provided by low-speed transmission path and ATM service provided by high-speed transmission path | Akihiko Takase, Masaru Murakami, Kaori Nakayama, Hitoshi Yajima, Takaaki Toyama | 2000-03-07 |
| 6018405 | Optical transmission equipment which transmits an amplified optical data signal and an optical surveillance signal | Keiji Tomooka, Naohiro Sakakida, Shin Nishimura, Yoshihiro Ashi, Hironari Matsuda +6 more | 2000-01-25 |
| 6005699 | Optical wavelength multiplexing system | Keiji Tomooka, Naohiro Sakakida, Shin Nishimura, Yoshihiro Ashi, Hironari Matsuda +6 more | 1999-12-21 |
| 5963555 | Router apparatus using ATM switch | Akihiko Takase, Kazuho Miki, Masaru Murakami, Koji Wakayama, Tetsuro Yoshimoto +1 more | 1999-10-05 |
| 5875046 | Optical repeater and optical transmitter | Keiji Tomooka, Naohiro Sakakida, Shin Nishimura, Yoshihiro Ashi, Hironari Matsuda +6 more | 1999-02-23 |
| 5861972 | Optical multiplex transmission equipment and method | Keiji Tomooka, Naohiro Sakakida, Shin Nishimura, Yoshihiro Ashi, Hironari Matsuda +6 more | 1999-01-19 |
| 5838677 | Switching system having means for congestion control by monitoring packets in a shared buffer and by suppressing the reading of packets from input buffers | Takahiko Kozaki, Noboru Endo, Akihiko Takase, Yozo Oguri | 1998-11-17 |
| 5815489 | Self-healing ring switch and method of controlling the same | Yoshihiro Ashi, Hiroyuki Fujita | 1998-09-29 |
| 5812289 | Optical repeater and optical transmitter | Keiji Tomooka, Naohiro Sakakida, Shin Nishimura, Yoshihiro Ashi, Hironari Matsuda +6 more | 1998-09-22 |