RF

Ryuhei Fujiwara

NE Nec: 26 patents #330 of 14,502Top 3%
NC Nippon Electric Co.: 2 patents #117 of 792Top 15%
Overall (All Time): #139,809 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 26–28 of 28 patents

Patent #TitleCo-InventorsDate
4756018 Multiple access communication system having loop-check circuitry for switching intraoffice connections 1988-07-05
4513416 System for adjusting a time axis by using a control and an adjustment time slot in a satellite station of a TDMA network 1985-04-23
4434506 Circuit arrangement for protecting a control channel from jamming waves in a radio communication system Tomokazu Kai, Hidetoshi Nakahara 1984-02-28