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Patent applications and USPTO patent grants for Sugiyama; Keizo.The latest application filed is for "methods and apparatus for wireless communications".
Patent | Date |
---|---|
Methods and apparatus for wireless communications Grant 7,486,928 - Izumikawa , et al. February 3, 2 | 2009-02-03 |
Packet control apparatus to connect interconnected network and wireless apparatus Grant 7,349,372 - Fuke , et al. March 25, 2 | 2008-03-25 |
System and method for switching between frequency channels in wireless LAN Grant 7,283,493 - Sugiyama , et al. October 16, 2 | 2007-10-16 |
Methods and apparatus for wireless communications App 20060264172 - Izumikawa; Haruki ;   et al. | 2006-11-23 |
Radio LAN master station system Grant 7,123,941 - Fukuhara , et al. October 17, 2 | 2006-10-17 |
Polling period controlling apparatus Grant 6,791,998 - Yoshihara , et al. September 14, 2 | 2004-09-14 |
Packet control apparatus to connect interconnected network and wireless apparatus App 20040136347 - Fuke, Naoki ;   et al. | 2004-07-15 |
Radio LAN master station system App 20020128046 - Fukuhara, Tadayuki ;   et al. | 2002-09-12 |
System and method for switching between frequency channels in wireless LAN App 20020126635 - Sugiyama, Keizo ;   et al. | 2002-09-12 |
Route selection method Grant 6,259,673 - Yoshihara , et al. July 10, 2 | 2001-07-10 |
Apparatus for management of SNMP/OSI gateways Grant 5,960,176 - Kuroki , et al. September 28, 1 | 1999-09-28 |
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