Inventor · disambiguated record
Shigeki Koya
Also filed as: KOYA SHIGEKI
64 granted patents·7 pending applications·124 citations·filing 2005–2025
98Inventor score
Top patents by PatentIndex Score
71 records- 0197US8335479B2Semiconductor integrated circuit, RF module using the same, and radio communication terminal device using the sameKOYA SHIGEKI·Filed 2012·Granted Dec 18, 2012·52 cites·5 claims
- 0295US10056476B1Heterojunction bipolar transistorMURATA MANUFACTURING CO·Filed 2018·Granted Aug 21, 2018·9 cites·20 claims
- 0394US10002950B1Bipolar transistor and method for producing the sameMURATA MANUFACTURING CO·Filed 2017·Granted Jun 19, 2018·6 cites·13 claims
- 0492US7336125B2Power amplifier and transmitterHITACHI LTD·Filed 2006·Granted Feb 26, 2008·14 cites·10 claims
- 0587US10629712B2Heterojunction bipolar transistorMURATA MANUFACTURING CO·Filed 2018·Granted Apr 21, 2020·3 cites·20 claims
- 0686US11705875B2Power amplifier moduleMURATA MANUFACTURING CO·Filed 2021·Granted Jul 18, 2023·1 cites·20 claims
- 0785US11984380B2Semiconductor package, semiconductor device, semiconductor package-mounted apparatus, and semiconductor device-mounted apparatusMURATA MANUFACTURING CO·Filed 2021·Granted May 14, 2024·1 cites·20 claims
- 0884US8159282B2Semiconductor integrated circuit and high frequency module with the sameKATOH KAORU·Filed 2009·Granted Apr 17, 2012·13 cites·18 claims
- 0983US11107909B2Semiconductor deviceMURATA MANUFACTURING CO·Filed 2019·Granted Aug 31, 2021·2 cites·8 claims
- 1083US8200167B2Semiconductor integrated circuit, RF module using the same, and radio communication terminal device using the sameKOYA SHIGEKI·Filed 2007·Granted Jun 12, 2012·8 cites·5 claims
- 1182US10886388B2Heterojunction bipolar transistorMURATA MANUFACTURING CO·Filed 2020·Granted Jan 5, 2021·1 cites·17 claims
- 1282US10629591B2Semiconductor deviceMURATA MANUFACTURING CO·Filed 2019·Granted Apr 21, 2020·2 cites·20 claims
- 1381US11508835B2Bipolar transistor and method for producing the sameMURATA MANUFACTURING CO·Filed 2022·Granted Nov 22, 2022·0 cites·7 claims
- 1480US10297680B2Bipolar transistor and method for producing the sameMURATA MANUFACTURING CO·Filed 2018·Granted May 21, 2019·1 cites·15 claims
- 1580US2024204087A1Semiconductor deviceMURATA MANUFACTURING CO·Filed 2024·Application pending·0 cites
- 1678US11251290B2Bipolar transistor and method for producing the sameMURATA MANUFACTURING CO·Filed 2021·Granted Feb 15, 2022·0 cites·20 claims
- 1776US11949003B2Semiconductor deviceMURATA MANUFACTURING CO·Filed 2022·Granted Apr 2, 2024·0 cites·10 claims
- 1876US11227941B2Bipolar transistor and method for producing the sameMURATA MANUFACTURING CO·Filed 2020·Granted Jan 18, 2022·0 cites·11 claims
- 1976US7783265B2Switching element, antenna switch circuit and radio frequency module using the sameRENESAS TECH CORP·Filed 2008·Granted Aug 24, 2010·4 cites·19 claims
- 2075US11978786B2Bipolar transistor and radio-frequency power amplifier moduleMURATA MANUFACTURING CO·Filed 2021·Granted May 7, 2024·0 cites·18 claims
- 2175US10868155B2Compound semiconductor deviceMURATA MANUFACTURING CO·Filed 2019·Granted Dec 15, 2020·2 cites·12 claims
- 2275US10777669B2Heterojunction bipolar transistorMURATA MANUFACTURING CO·Filed 2018·Granted Sep 15, 2020·1 cites·17 claims
- 2373US11329146B2Semiconductor deviceMURATA MANUFACTURING CO·Filed 2021·Granted May 10, 2022·0 cites·12 claims
- 2472US11424350B2Heterojunction bipolar transistorMURATA MANUFACTURING CO·Filed 2020·Granted Aug 23, 2022·0 cites·20 claims
- 2572US2025210247A1Switching power source device equipped with composite power inductorMURATA MANUFACTURING CO·Filed 2025·Application pending·0 cites
- 2671US10741680B2Bipolar transistor and method for producing the sameMURATA MANUFACTURING CO·Filed 2019·Granted Aug 11, 2020·0 cites·14 claims
- 2771US7899412B2Switching element, antenna switch circuit and radio frequency module using the sameRENESAS ELECTRONICS CORP·Filed 2010·Granted Mar 1, 2011·2 cites·20 claims
- 2870US11164963B2Bipolar transistor and radio-frequency power amplifier moduleMURATA MANUFACTURING CO·Filed 2020·Granted Nov 2, 2021·0 cites·20 claims
- 2969US11610883B2Semiconductor deviceMURATA MANUFACTURING CO·Filed 2021·Granted Mar 21, 2023·0 cites·20 claims
- 3068US11705509B2Heterojunction bipolar transistorMURATA MANUFACTURING CO·Filed 2020·Granted Jul 18, 2023·0 cites·19 claims
- 3168US10541320B2Bipolar transistor and method for producing the sameMURATA MANUFACTURING CO·Filed 2019·Granted Jan 21, 2020·0 cites·20 claims
- 3267US11476807B2Power amplifier moduleMURATA MANUFACTURING CO·Filed 2020·Granted Oct 18, 2022·0 cites·10 claims
- 3367US10923470B2Semiconductor deviceMURATA MANUFACTURING CO·Filed 2020·Granted Feb 16, 2021·0 cites·20 claims
- 3465US11871513B2Multilayer wiring substrateMURATA MANUFACTURING CO·Filed 2021·Granted Jan 9, 2024·0 cites·18 claims
- 3565US9444512B2Semiconductor device and high-frequency moduleMURATA MANUFACTURING CO·Filed 2012·Granted Sep 13, 2016·2 cites·11 claims
- 3663US11869957B2Compound semiconductor deviceMURATA MANUFACTURING CO·Filed 2021·Granted Jan 9, 2024·0 cites·17 claims
- 3763US11817356B2Semiconductor deviceMURATA MANUFACTURING CO·Filed 2021·Granted Nov 14, 2023·0 cites·18 claims
- 3863US11658180B2Semiconductor device having a plurality of bipolar transistors with different heights between their respective emitter layers and emitter electrodesMURATA MANUFACTURING CO·Filed 2021·Granted May 23, 2023·0 cites·18 claims
- 3962US11508834B2Compound semiconductor deviceMURATA MANUFACTURING CO·Filed 2020·Granted Nov 22, 2022·0 cites·17 claims
- 4060US2024096792A1Semiconductor module and semiconductor deviceMURATA MANUFACTURING CO·Filed 2023·Application pending·0 cites
- 4159US12494749B2Power amplifierMURATA MANUFACTURING CO·Filed 2023·Granted Dec 9, 2025·0 cites·12 claims
- 4259US12308809B2Power amplification circuitMURATA MANUFACTURING CO·Filed 2021·Granted May 20, 2025·0 cites·14 claims
- 4359US11240912B2Multilayer wiring substrateMURATA MANUFACTURING CO·Filed 2020·Granted Feb 1, 2022·0 cites·16 claims
- 4458US12009359B2Semiconductor deviceMURATA MANUFACTURING CO·Filed 2021·Granted Jun 11, 2024·0 cites·22 claims
- 4558US11227804B2Semiconductor deviceMURATA MANUFACTURING CO·Filed 2020·Granted Jan 18, 2022·0 cites·20 claims
- 4658US2024014296A1Semiconductor device and semiconductor moduleMURATA MANUFACTURING CO·Filed 2023·Application pending·0 cites
- 4757US10964693B2Semiconductor device having a plurality of bipolar transistors with different heights between their respective emitter layers and emitter electrodesMURATA MANUFACTURING CO·Filed 2019·Granted Mar 30, 2021·0 cites·19 claims
- 4857US10665704B2Bipolar transistor and radio-frequency power amplifier moduleMURATA MANUFACTURING CO·Filed 2018·Granted May 26, 2020·0 cites·24 claims
- 4957US2024014297A1Semiconductor deviceMURATA MANUFACTURING CO·Filed 2023·Application pending·0 cites
- 5055US11495563B2Semiconductor deviceMURATA MANUFACTURING CO·Filed 2020·Granted Nov 8, 2022·0 cites·20 claims
Showing the top 50 of 71 patent records by PatentIndex Score.
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