Inventor
USUBA SHINJI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “USUBA SHINJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
OKI ELECTRIC IND CO LTD
8 patentsUS7733849B2Jun 8, 2010
Voice communications system
OKI ELECTRIC IND CO LTD6 citations72
US7443837B2Oct 28, 2008
Telephone communication system
OKI ELECTRIC IND CO LTD4 citations61
US7706354B2Apr 27, 2010
Telephone switching system accommodating a plurality of line packages
OKI ELECTRIC IND CO LTD2 citations60
US7672296B2Mar 2, 2010
Real-time communications system of high communications quality and media terminal apparatus
OKI ELECTRIC IND CO LTD4 citations59
US8379633B2Feb 19, 2013
Concentrator for speech telephones and method of communication over LAN using same
OKI ELECTRIC IND CO LTD0 citations46
US7382766B1Jun 3, 2008
Line concentrator for telephone set and communication method of LAN
OKI ELECTRIC IND CO LTD0 citations46
US7573989B2Aug 11, 2009
Telephone communications apparatus
OKI ELECTRIC IND CO LTD0 citations38
US7822014B2Oct 26, 2010
Voice communication system and a server apparatus
OKI ELECTRIC IND CO LTD0 citations35