Inventor
YAMAUCHI TOSHIRO
JP12 patents
⚠️ This page may combine multiple inventors who share the name “YAMAUCHI TOSHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
7 patentsUS7272146B2Sep 18, 2007
MPLS-VPN service network
NEC CORP15 citations82
US7924737B2Apr 12, 2011
Signal degrade detecting method, signal restoration detecting method, devices for those methods, and traffic transmission system
NEC CORP3 citations60
US7719956B2May 18, 2010
Trunk network system for multipoint-to-multipoint relay
NEC CORP3 citations60
US7450519B2Nov 11, 2008
Auto-negotiation monitor system, repeating-transmission apparatus, and auto-negotiation monitor method used therefor
NEC CORP6 citations60
US7974187B2Jul 5, 2011
Data transmission
NEC CORP1 citations50
US7787451B2Aug 31, 2010
Packet transmission method and packet transmission system
NEC CORP0 citations50
US7602727B2Oct 13, 2009
Method and apparatus for resolving deadlock of auto-negotiation sequence between switches
NEC CORP0 citations50
FUJI PHOTO OPTICAL CO LTD
3 patentsUS4228458AOct 14, 1980
Optical color-separation system for use in a color television camera
FUJI PHOTO OPTICAL CO LTD2 citations60
US4185297AJan 22, 1980
Color separation optical system for color television camera
FUJI PHOTO OPTICAL CO LTD6 citations60
US4080624AMar 21, 1978
Optical color-separation system for use in a color television camera
FUJI PHOTO OPTICAL CO LTD3 citations60