Inventor
FUKUSHIMA TAKAO
JP7 patents
⚠️ This page may combine multiple inventors who share the name “FUKUSHIMA TAKAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
3 patentsUS6038678AMar 14, 2000
Path switching method, path switching apparatus and nodes of UPSR
HITACHI LTD51 citations94
US6205562B1Mar 20, 2001
Path switching method, path switching apparatus and nodes of UPSR
HITACHI LTD36 citations91
US7769257B2Aug 3, 2010
Optical transmission system and signal speed converting apparatus
HITACHI LTD3 citations62