KS

Keizo Sugiyama

KD Kddi: 3 patents #108 of 396Top 30%
KC Kokusai Denshin Denwa Co.: 3 patents #120 of 382Top 35%
KD Kdd: 1 patents #44 of 96Top 50%
KL Kddi R&D Laboratories: 1 patents #25 of 55Top 50%
Overall (All Time): #657,853 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
7486928 Methods and apparatus for wireless communications Haruki Izumikawa, Kenji Saito 2009-02-03
7349372 Packet control apparatus to connect interconnected network and wireless apparatus Naoki Fuke, Hideyuki Shinonaga 2008-03-25
7283493 System and method for switching between frequency channels in wireless LAN Naoki Fuke, Hideyuki Shinonaga 2007-10-16
7123941 Radio LAN master station system Tadayuki Fukuhara, Hiroyasu Ishikawa, Takayuki Warabino, Naoki Fuke, Hideyuki Shinonaga 2006-10-17
6791998 Polling period controlling apparatus Kiyohito Yoshihara, Hiroki Horiuchi, Sadao Obana 2004-09-14
6259673 Route selection method Kiyohito Yoshihara, Hiroki Horiuchi, Sadao Obana 2001-07-10
6081838 Method for access control on MIB in OSI management Kiyohito Yoshihara, Hiroki Horiuchi, Sadao Obana 2000-06-27
5960176 Apparatus for management of SNMP/OSI gateways Tetsuya Kuroki, Hiroki Horiuchi, Sadao Obana, Kenji Suzuki 1999-09-28