| Patent | Date |
|---|
Packet switching system having self-routing switches
Grant 7,058,062 - Tanabe , et al. June 6, 2 | 2006-06-06 |
Distributed type switching system
Grant 6,639,920 - Sakurai , et al. October 28, 2 | 2003-10-28 |
Packet switching system having-having self-routing switches
Grant 6,618,372 - Tanabe , et al. September 9, 2 | 2003-09-09 |
Distributed Type Switching System
App 20020126649 - Sakurai, Yoshito ; et al. | 2002-09-12 |
Packet switching system having self-routing switches
App 20020057696 - Tanabe, Shirou ; et al. | 2002-05-16 |
Distributed type switching system
Grant 6,389,025 - Sakurai , et al. May 14, 2 | 2002-05-14 |
Distributed type switching system
Grant 6,335,934 - Sakurai , et al. January 1, 2 | 2002-01-01 |
Packet switching system having self-routing switches
Grant 6,314,096 - Tanabe , et al. November 6, 2 | 2001-11-06 |
Distributed type switching system
App 20010028658 - Sakurai, Yoshito ; et al. | 2001-10-11 |
Broadcast information delivering system
Grant 6,256,509 - Tanaka , et al. July 3, 2 | 2001-07-03 |
Frequency-hopping communication system and communication station
Grant 6,061,389 - Ishifuji , et al. May 9, 2 | 2000-05-09 |
Packet switching system having self-routing switches
Grant 5,999,537 - Tanabe , et al. December 7, 1 | 1999-12-07 |
Frequency hopping wireless communication system and communication equipment
Grant 5,862,142 - Takiyasu , et al. January 19, 1 | 1999-01-19 |
Packet switching system having self-routing switches
Grant 5,740,156 - Tanabe , et al. April 14, 1 | 1998-04-14 |
Wireless LAN system capable of re-transmission under management of a base station device to a destination mobile terminal device
Grant 5,655,219 - Jusa , et al. August 5, 1 | 1997-08-05 |
Screen communications system granting screen modifying requests if no other requests received after first period of time and releasing requests after second period of time
Grant 5,596,721 - Masse , et al. January 21, 1 | 1997-01-21 |
Wireless communication system and wireless terminal device using fixed length communication frame
Grant 5,559,804 - Amada , et al. September 24, 1 | 1996-09-24 |
Method of wireless communication between base station and mobile station and multiple access communication system
Grant 5,537,414 - Takiyasu , et al. July 16, 1 | 1996-07-16 |
High-speed ring lan system
Grant 5,247,518 - Takiyasu , et al. September 21, 1 | 1993-09-21 |
Independent clocking local area network and nodes used for the same
Grant 5,241,543 - Amada , et al. August 31, 1 | 1993-08-31 |
Cell signal processing circuit and optical switch apparatus using the same
Grant 5,197,097 - Takahashi , et al. March 23, 1 | 1993-03-23 |
Switching system
Grant 5,184,346 - Kozaki , et al. February 2, 1 | 1993-02-02 |
Communication apparatus for reassembling packets received from network into message
Grant 5,113,392 - Takiyasu , et al. May 12, 1 | 1992-05-12 |
High-speed ring LAN system
Grant 5,103,447 - Takiyasu , et al. April 7, 1 | 1992-04-07 |
High-speed packet switching using a space division optical switch
Grant 5,091,905 - Amada February 25, 1 | 1992-02-25 |
Time-division channel arrangement
Grant 5,043,979 - Sakurai , et al. August 27, 1 | 1991-08-27 |
Method and system for bidirectionally transmitting data
Grant 4,841,521 - Amada , et al. June 20, 1 | 1989-06-20 |
PCM coder and decoder having function of two-wire/four-wire conversion
Grant 4,796,296 - Amada , et al. January 3, 1 | 1989-01-03 |
Semiconductor memory having load devices controlled by a write signal
Grant 4,665,507 - Gondou , et al. May 12, 1 | 1987-05-12 |
Time division switching system
Grant 4,633,460 - Suzuki , et al. December 30, 1 | 1986-12-30 |
Time-division switching unit
Grant 4,543,652 - Amada , et al. September 24, 1 | 1985-09-24 |
Recursive type digital filter
Grant 4,305,133 - Amada , et al. December 8, 1 | 1981-12-08 |
Recursive digital filter having means to prevent overflow oscillation
Grant 4,223,389 - Amada , et al. September 16, 1 | 1980-09-16 |
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