Inventor · disambiguated record
Kenji Sekine
Also filed as: SEKINE KENJI
46 granted patents·11 pending applications·1,659 citations·filing 1978–2019
98Inventor score
Files withHITACHI LTD28RENESAS TECH CORP8HITACHI TOBU SEMICONDUCTOR LTD3NIPPON KAYAKU KK3NIPPON KOGAKU KK2
Top patents by PatentIndex Score
57 records- 0197US6384680B1RF amplifier with plural combinersHITACHI LTD·Filed 2000·Granted May 7, 2002·93 cites·20 claims
- 0296US6495914B1Multi-chip module structure having conductive blocks to provide electrical connection between conductors on first and second sides of a conductive base substrateHITACHI LTD·Filed 1998·Granted Dec 17, 2002·399 cites·15 claims
- 0395US6865399B2Mobile telephone apparatusRENESAS TECH CORP·Filed 2002·Granted Mar 8, 2005·93 cites·7 claims
- 0495US6750707B2Multi-carrier RF amplifiersHITACHI LTD·Filed 2002·Granted Jun 15, 2004·70 cites·14 claims
- 0594US6943624B2Radio frequency power amplifierRENESAS TECH CORP·Filed 2002·Granted Sep 13, 2005·61 cites·7 claims
- 0693US6384688B1High-frequency power amplifier moduleHITACHI LTD·Filed 1998·Granted May 7, 2002·87 cites·6 claims
- 0790US6366788B1Mobile telephone systemHITACHI LTD·Filed 1998·Granted Apr 2, 2002·75 cites·7 claims
- 0890US5274341AHigh-frequency power amplifierHITACHI LTD·Filed 1992·Granted Dec 28, 1993·84 cites·6 claims
- 0989US4346774ADoppler radar mounting structure for motor vehiclesHITACHI LTD·Filed 1979·Granted Aug 31, 1982·51 cites·11 claims
- 1088US6330165B1Semiconductor deviceHITACHI LTD·Filed 1999·Granted Dec 11, 2001·74 cites·25 claims
- 1188US6249242B1High-frequency transmitter-receiver apparatus for such an application as vehicle-onboard radar systemHITACHI LTD·Filed 1999·Granted Jun 19, 2001·103 cites·37 claims
- 1287US6674323B2High frequency power amplifier, high frequency power amplifier module, and portable telephoneRENESAS TECH CORP·Filed 2002·Granted Jan 6, 2004·40 cites·20 claims
- 1386US4933602AApparatus for generating light by utilizing microwaveHITACHI LTD·Filed 1988·Granted Jun 12, 1990·35 cites·13 claims
- 1482US10843490B2Printer including guide roller with roller part that rotates in contact with recording sheetFUJITSU COMPONENT LTD·Filed 2019·Granted Nov 24, 2020·1 cites·7 claims
- 1582US6337661B1High frequency communication deviceHITACHI LTD·Filed 2000·Granted Jan 8, 2002·28 cites·17 claims
- 1682US4259743ATransmit/receive microwave circuitHITACHI LTD·Filed 1978·Granted Mar 31, 1981·28 cites·5 claims
- 1781US6816017B2Power amplifier moduleRENESAS TECH CORP·Filed 2001·Granted Nov 9, 2004·29 cites·12 claims
- 1880US4251817AMicrowave integrated circuit device for transmission/reception of a signalHITACHI LTD·Filed 1979·Granted Feb 17, 1981·26 cites·8 claims
- 1977US7525813B2Semiconductor deviceRENESAS TECH CORP·Filed 2007·Granted Apr 28, 2009·6 cites·16 claims
- 2076US4647869AMicrowave solid-state amplifierHITACHI LTD·Filed 1985·Granted Mar 3, 1987·24 cites·2 claims
- 2175US6396349B2Traveling wave power combiner and radio base stationHITACHI LTD·Filed 2001·Granted May 28, 2002·18 cites·14 claims
- 2274US6489680B2Semiconductor deviceHITACHI LTD·Filed 2001·Granted Dec 3, 2002·15 cites·4 claims
- 2372US4255730AMicrowave integrated circuit deviceHITACHI LTD·Filed 1978·Granted Mar 10, 1981·18 cites·2 claims
- 2470US6949974B2Radio frequency power amplifierRENESAS TECH CORP·Filed 2004·Granted Sep 27, 2005·12 cites·20 claims
- 2570US4366546ASignal processor for skid control deviceHITACHI LTD·Filed 1980·Granted Dec 28, 1982·14 cites·6 claims
- 2668US6535069B2High-frequency power amplifier moduleHITACHI LTD·Filed 2002·Granted Mar 18, 2003·13 cites·5 claims
- 2766US6853243B2Wireless communication frequency signal amplification apparatus and transmitting and receiving apparatusRENESAS TECH CORP·Filed 2002·Granted Feb 8, 2005·13 cites·19 claims
- 2865US7123087B2Radio frequency power amplifierRENESAS TECH CORP·Filed 2005·Granted Oct 17, 2006·4 cites·7 claims
- 2964US4356489AVehicle speed sensing apparatus with electromagnetic wave interference detectorHITACHI LTD·Filed 1980·Granted Oct 26, 1982·20 cites·10 claims
- 3063US4319244AShort-range doppler radarNISSAN MOTOR·Filed 1980·Granted Mar 9, 1982·19 cites·27 claims
- 3162US4316173ADoppler radar vehicle speed sensing system including means for checking system operation based on the detection of low frequency Doppler frequency componentsHITACHI LTD·Filed 1980·Granted Feb 16, 1982·18 cites·4 claims
- 3261US7068521B2Semiconductor deviceHITACHI TOBU SEMICONDUCTOR LTD·Filed 2005·Granted Jun 27, 2006·1 cites·10 claims
- 3361US6952565B1Communication terminal, automobile communication terminal, and automobileHITACHI LTD·Filed 1999·Granted Oct 4, 2005·28 cites·25 claims
- 3461US4354191AGround-speed Doppler radar for vehiclesNISSAN MOTOR·Filed 1980·Granted Oct 12, 1982·17 cites·12 claims
- 3559US6236272B1Traveling wave power combiner and radio base stationHITACHI LTD·Filed 1999·Granted May 22, 2001·15 cites·5 claims
- 3658US7519786B2Storage system, storage access restriction method and computer program productHITACHI LTD·Filed 2005·Granted Apr 14, 2009·1 cites·13 claims
- 3758US2016194542A1Polyimide resin composition, and heat-conductive adhesive film produced using sameNIPPON KAYAKU KK·Filed 2014·Application pending·0 cites
- 3857US6862001B2High frequency communication deviceHITACHI LTD·Filed 2002·Granted Mar 1, 2005·6 cites·2 claims
- 3954US7127229B2Emergency report cellular phone, cellular connection switching method and GPS positioning methodUNIDEN KK·Filed 2002·Granted Oct 24, 2006·13 cites·8 claims
- 4054US4371244AApparatus for controlling film advancement in a cameraNIPPON KOGAKU KK·Filed 1981·Granted Feb 1, 1983·5 cites·9 claims
- 4153US7817437B2Semiconductor deviceRENENSAS ELECTRONICS CORP·Filed 2009·Granted Oct 19, 2010·0 cites·7 claims
- 4252US2010035182A1Photosensitive resin compositionNIPPON KAYAKU KK·Filed 2008·Application pending·0 cites
- 4350US2007001300A1Semiconductor deviceHITACHI TOBU SEMICONDUCTOR LTD·Filed 2006·Application pending·0 cites
- 4447US2017017403A1Storage systemHITACHI LTD·Filed 2014·Application pending·0 cites
- 4546US7225328B2Maintenance terminal of disk array deviceHITACHI LTD·Filed 2004·Granted May 29, 2007·0 cites·15 claims
- 4642US8583884B2Computing system and backup methodSEKINE KENJI·Filed 2009·Granted Nov 12, 2013·0 cites·8 claims
- 4742US8295057B2Semiconductor deviceKOHJIRO IWAMICHI·Filed 2010·Granted Oct 23, 2012·0 cites·10 claims
- 4841US2011045231A1Leather-like sheet and production process thereofTORAY INDUSTRIES·Filed 2007·Application pending·0 cites
- 4940US6943441B2Semiconductor deviceHITACHI TOBU SEMICONDUCTOR LTD·Filed 2002·Granted Sep 13, 2005·0 cites·16 claims
- 5039US4340290AElectric rewind device for a cameraNIPPON KOGAKU KK·Filed 1981·Granted Jul 20, 1982·2 cites·5 claims
Showing the top 50 of 57 patent records by PatentIndex Score.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →