Inventor · disambiguated record
Taizo Yamawaki
Also filed as: YAMAWAKI TAIZO
78 granted patents·10 pending applications·526 citations·filing 1998–2025
99Inventor score
Files withHITACHI LTD16RENESAS TECH CORP15MURATA MANUFACTURING CO13HITACHI AUTOMOTIVE SYSTEMS LTD6RENESAS ELECTRONICS CORP6
Top patents by PatentIndex Score
88 records- 0195US8023995B2Radio frequency device and mobile communication terminal using the sameRENESAS ELECTRONICS CORP·Filed 2005·Granted Sep 20, 2011·29 cites·4 claims
- 0293US8411730B2Semiconductor integrated communication circuit and operation method thereofMAEDA KOJI·Filed 2010·Granted Apr 2, 2013·22 cites·20 claims
- 0393US7996003B2Integrated circuit and device for mobile communicationsRENESAS ELECTRONICS CORP·Filed 2007·Granted Aug 9, 2011·27 cites·13 claims
- 0493US6826388B1Mobile communication apparatus including dividers in transmitter and receiverRENESAS TECH CORP·Filed 2000·Granted Nov 30, 2004·49 cites·8 claims
- 0591US8346180B2TransceiverRENESAS ELECTRONICS CORP·Filed 2011·Granted Jan 1, 2013·11 cites·20 claims
- 0691US7702359B2Direct-conversion transmitter circuit and transceiver systemRENESAS TECH CORP·Filed 2007·Granted Apr 20, 2010·13 cites·4 claims
- 0790US9585105B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2016·Granted Feb 28, 2017·3 cites·13 claims
- 0890US8102289B2Analog/digital converter and semiconductor integrated circuit deviceOSHIMA TAKASHI·Filed 2009·Granted Jan 24, 2012·18 cites·18 claims
- 0990US8030995B2Power circuit used for an amplifierHITACHI INT ELECTRIC INC·Filed 2009·Granted Oct 4, 2011·21 cites·4 claims
- 1089US8107912B2Mobile communication apparatusTANAKA SATOSHI·Filed 2010·Granted Jan 31, 2012·6 cites·2 claims
- 1188US9955435B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2017·Granted Apr 24, 2018·3 cites·5 claims
- 1288US7701376B2Digital calibration type analog-to-digital converter and wireless receiver circuit and wireless transceiver circuit using the sameHITACHI LTD·Filed 2008·Granted Apr 20, 2010·16 cites·20 claims
- 1387US6930549B2Variable gain amplifier for use in communicationsRENESAS TECH CORP·Filed 2003·Granted Aug 16, 2005·29 cites·24 claims
- 1486US11856525B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2023·Granted Dec 26, 2023·0 cites·23 claims
- 1585US8494456B2TransceiverTANAKA SATOSHI·Filed 2012·Granted Jul 23, 2013·6 cites·3 claims
- 1683US12177790B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2023·Granted Dec 24, 2024·0 cites·3 claims
- 1783US10312932B2Successive approximation analog-to-digital converterHITACHI LTD·Filed 2018·Granted Jun 4, 2019·5 cites·11 claims
- 1883US7076231B2Receiver apparatus controlling the power consumption according to the reception signal levelHITACHI LTD·Filed 2003·Granted Jul 11, 2006·26 cites·20 claims
- 1982US7444123B2Transmitter and mobile communication terminal using the sameRENESAS TECH CORP·Filed 2006·Granted Oct 28, 2008·10 cites·11 claims
- 2081US8086188B2TransceiverTANAKA SATOSHI·Filed 2008·Granted Dec 27, 2011·7 cites·10 claims
- 2179US11611942B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2022·Granted Mar 21, 2023·0 cites·6 claims
- 2279US7194242B2Direct-conversion transmitter circuit and transceiver systemRENESAS TECH CORP·Filed 2003·Granted Mar 20, 2007·16 cites·8 claims
- 2378US7885626B2Mobile communication apparatusRENESAS TECH CORP·Filed 2008·Granted Feb 8, 2011·5 cites·2 claims
- 2477US9807703B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2017·Granted Oct 31, 2017·1 cites·8 claims
- 2577US8004445B2Digital calibration type analog-to-digital converter and wireless receiver circuit and wireless transceiver circuit using the sameHITACHI LTD·Filed 2010·Granted Aug 23, 2011·5 cites·5 claims
- 2677US6163585APhase-locked loop circuit and radio communication apparatus using the sameHITACHI LTD·Filed 1998·Granted Dec 19, 2000·30 cites·20 claims
- 2776US11290964B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2021·Granted Mar 29, 2022·0 cites·12 claims
- 2876US9693320B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2017·Granted Jun 27, 2017·1 cites·6 claims
- 2976US8299865B2Quadrature modulator and semiconductor integrated circuit with it built-inNAKAMURA TAKAHIRO·Filed 2010·Granted Oct 30, 2012·5 cites·18 claims
- 3076US8036605B2TransceiverRENESAS ELECTRONICS CORP·Filed 2008·Granted Oct 11, 2011·5 cites·21 claims
- 3176US7519337B2Transmitter and mobile communication terminal using the sameRENESAS TECH CORP·Filed 2005·Granted Apr 14, 2009·9 cites·23 claims
- 3275US7843369B2Analog-to-digital converter and communication device and wireless transmitter and receiver using the sameHITACHI LTD·Filed 2008·Granted Nov 30, 2010·9 cites·20 claims
- 3374US11006371B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2020·Granted May 11, 2021·0 cites·6 claims
- 3474US8169350B2Analog-digital converter chip and RF-IC chip using the sameOSHIMA TAKASHI·Filed 2008·Granted May 1, 2012·8 cites·16 claims
- 3574US7657282B2Multimode wireless communication apparatus and high frequency integrated circuit thereforHITACHI LTD·Filed 2003·Granted Feb 2, 2010·17 cites·16 claims
- 3673US10750454B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2020·Granted Aug 18, 2020·0 cites·3 claims
- 3773US8633746B2Semiconductor device and radio communication terminal mounting the sameRENESAS MOBILE CORP·Filed 2012·Granted Jan 21, 2014·4 cites·8 claims
- 3873US8095094B2Communication semiconductor integrated circuit, communication electronic component and wireless communication systemMATSUI HIROAKI·Filed 2008·Granted Jan 10, 2012·5 cites·5 claims
- 3972US10498395B2Power line communication apparatus and electronic control apparatus including power line communication apparatusHITACHI AUTOMOTIVE SYSTEMS LTD·Filed 2016·Granted Dec 3, 2019·2 cites·15 claims
- 4072US8442461B2Transmitter and semiconductor integrated circuit available for itNORIMATSU TAKAYASU·Filed 2010·Granted May 14, 2013·5 cites·18 claims
- 4171US7333779B2PLL circuit and radio communication terminal apparatus using the sameRENESAS TECH CORP·Filed 2005·Granted Feb 19, 2008·6 cites·1 claims
- 4270US8736470B2Analog/digital converter and semiconductor integrated circuit deviceOSHIMA TAKASHI·Filed 2011·Granted May 27, 2014·3 cites·12 claims
- 4370US7764216B2Analog-to-digital converter, method of controlling the same, and wireless transceiver circuitHITACHI LTD·Filed 2008·Granted Jul 27, 2010·6 cites·20 claims
- 4468US7184491B2Wireless communication apparatusHTACHI LTD·Filed 2003·Granted Feb 27, 2007·13 cites·19 claims
- 4567US10212671B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2018·Granted Feb 19, 2019·0 cites·6 claims
- 4667US9451561B2High-frequency signal processing apparatus and wireless communication apparatusMURATA MANUFACTURING CO·Filed 2012·Granted Sep 20, 2016·1 cites·18 claims
- 4767US7957710B2DCDC converter unit, power amplifier, and base station using the sameHITACHI INT ELECTRIC INC·Filed 2008·Granted Jun 7, 2011·5 cites·20 claims
- 4867US7116950B2Direct-conversion transmitting circuit and integrated transmitting/receiving circuitTTP COMMUNICATIONS LTD·Filed 2002·Granted Oct 3, 2006·9 cites·14 claims
- 4965US7463876B2Communication semiconductor integrated circuit, communication electronic component and wireless communication systemRENESAS TECHNOLOG CORP·Filed 2006·Granted Dec 9, 2008·4 cites·12 claims
- 5065US6996384B2Receiver and radio communication terminal using the sameHITACHI LTD·Filed 2003·Granted Feb 7, 2006·8 cites·11 claims
Showing the top 50 of 88 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when Taizo Yamawaki files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →