Inventor · disambiguated record
Tetsuhiko Hirata
Also filed as: HIRATA TETSUHIKO
16 granted patents·1 pending application·919 citations·filing 1990–2007
95Inventor score
Top patents by PatentIndex Score
17 records- 0191US6701132B1Mobile communication system, mobile station, and base station that calculates distance from mobile stationHITACHI LTD·Filed 2000·Granted Mar 2, 2004·74 cites·9 claims
- 0290US5303344AProtocol processing apparatus for use in interfacing network connected computer systems utilizing separate paths for control information and data transferHITACHI LTD·Filed 1991·Granted Apr 12, 1994·200 cites·22 claims
- 0387US5056058ACommunication protocol for predicting communication frame type in high-speed processing systemHITACHI LTD·Filed 1990·Granted Oct 8, 1991·157 cites·7 claims
- 0486US7123599B2Mobile communication systemHITACHI LTD·Filed 2002·Granted Oct 17, 2006·60 cites·8 claims
- 0586US7085579B2Mobile communication systems, mobile stations, base station controllers and packet data service nodesHITACHI LTD·Filed 2001·Granted Aug 1, 2006·47 cites·3 claims
- 0686US5678060ASystem for executing high speed communication protocol processing by predicting protocol header of next frame utilizing successive analysis of protocol header until successful header retrievalHITACHI LTD·Filed 1994·Granted Oct 14, 1997·137 cites·4 claims
- 0780US5150365ACommunication system for coexistent base band and broad band signalsHITACHI LTD·Filed 1990·Granted Sep 22, 1992·62 cites·8 claims
- 0875US7009950B1Mobile IP network system and connection switching methodHITACHI LTD·Filed 2000·Granted Mar 7, 2006·19 cites·10 claims
- 0972US7173932B2Packet switching apparatusHITACHI LTD·Filed 2001·Granted Feb 6, 2007·15 cites·4 claims
- 1070US7404008B2Address translator and method for management of address translation rulesHITACHI LTD·Filed 2003·Granted Jul 22, 2008·15 cites·20 claims
- 1169US5727149ANetwork interface apparatus and data transmission control method thereofHITACHI LTD·Filed 1995·Granted Mar 10, 1998·74 cites·26 claims
- 1254US5623606ACommunication control method and apparatus for performing high speed transfer of data by controlling transfer starting timesHITACHI LTD·Filed 1992·Granted Apr 22, 1997·29 cites·16 claims
- 1347US2006114856A1Mobile IP network system and connection switching methodHIRATA TETSUHIKO·Filed 2006·Application pending·0 cites
- 1446US8077719B2Packet switching apparatusMIKI KAZUHO·Filed 2007·Granted Dec 13, 2011·0 cites·12 claims
- 1540US5345410AArithmetic-logic unit with modulo addition/substraction function and microprocessor using the sameHITACHI LTD·Filed 1992·Granted Sep 6, 1994·12 cites·23 claims
- 1639US5706430AMethod and system for sequentially broadcasting data according to pre-assigned time slots with and without the reception of a synchronization packetHITACHI LTD·Filed 1994·Granted Jan 6, 1998·8 cites·2 claims
- 1734US5748893ANetwork interface apparatusHITACHI LTD·Filed 1996·Granted May 5, 1998·10 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →