Inventor
OBU ISAO
JP56 patents
⚠️ This page may combine multiple inventors who share the name “OBU ISAO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MURATA MANUFACTURING CO
49 patentsUS10192862B2Jan 29, 2019
Semiconductor device
MURATA MANUFACTURING CO6 citations84
US10056476B1Aug 21, 2018
Heterojunction bipolar transistor
MURATA MANUFACTURING CO9 citations84
US9859405B1Jan 2, 2018
Heterojunction bipolar transistor
MURATA MANUFACTURING CO10 citations84
US9397204B2Jul 19, 2016
Heterojunction bipolar transistor with two base layers
MURATA MANUFACTURING CO10 citations84
US9130004B2Sep 8, 2015
Heterojunction bipolar transistor, power amplifier including the same, and method for fabricating heterojunction bipolar transistor
MURATA MANUFACTURING CO11 citations84
US9343360B2May 17, 2016
Bump-equipped electronic component and method for manufacturing bump-equipped electronic component
MURATA MANUFACTURING CO9 citations83
US10886388B2Jan 5, 2021
Heterojunction bipolar transistor
MURATA MANUFACTURING CO1 citations73
US10629712B2Apr 21, 2020
Heterojunction bipolar transistor
MURATA MANUFACTURING CO3 citations73
US11107909B2Aug 31, 2021
Semiconductor device
MURATA MANUFACTURING CO2 citations72
US10361666B2Jul 23, 2019
Semiconductor device and power amplifier module
MURATA MANUFACTURING CO2 citations72
US9997516B2Jun 12, 2018
Semiconductor device and power amplifier circuit
MURATA MANUFACTURING CO2 citations72
US9679860B2Jun 13, 2017
Bump-equipped electronic component and method for manufacturing bump-equipped electronic component
MURATA MANUFACTURING CO2 citations72
US11978786B2May 7, 2024
Bipolar transistor and radio-frequency power amplifier module
MURATA MANUFACTURING CO0 citations63
US11705875B2Jul 18, 2023
Power amplifier module
MURATA MANUFACTURING CO1 citations63
US11658180B2May 23, 2023
Semiconductor device having a plurality of bipolar transistors with different heights between their respective emitter layers and emitter electrodes
MURATA MANUFACTURING CO0 citations63
US11626511B2Apr 11, 2023
Semiconductor device
MURATA MANUFACTURING CO0 citations63
US11557664B2Jan 17, 2023
Heterojunction bipolar transistor including ballast resistor and semiconductor device
MURATA MANUFACTURING CO0 citations63
US11476807B2Oct 18, 2022
Power amplifier module
MURATA MANUFACTURING CO0 citations63
US11164963B2Nov 2, 2021
Bipolar transistor and radio-frequency power amplifier module
MURATA MANUFACTURING CO0 citations63
US11075289B2Jul 27, 2021
Heterojunction bipolar transistor including ballast resistor and semiconductor device
MURATA MANUFACTURING CO0 citations63
US10972060B2Apr 6, 2021
Radio frequency power amplifier and power amplifier module
MURATA MANUFACTURING CO0 citations63
US10964693B2Mar 30, 2021
Semiconductor device having a plurality of bipolar transistors with different heights between their respective emitter layers and emitter electrodes
MURATA MANUFACTURING CO0 citations63
US11949003B2Apr 2, 2024
Semiconductor device
MURATA MANUFACTURING CO0 citations62
US11817356B2Nov 14, 2023
Semiconductor device
MURATA MANUFACTURING CO0 citations62
US11705509B2Jul 18, 2023
Heterojunction bipolar transistor
MURATA MANUFACTURING CO0 citations62
US11621678B2Apr 4, 2023
Semiconductor device and power amplifier module
MURATA MANUFACTURING CO0 citations62
US11424350B2Aug 23, 2022
Heterojunction bipolar transistor
MURATA MANUFACTURING CO0 citations62
US11329146B2May 10, 2022
Semiconductor device
MURATA MANUFACTURING CO0 citations62
US11227804B2Jan 18, 2022
Semiconductor device
MURATA MANUFACTURING CO0 citations62
US11227862B2Jan 18, 2022
Semiconductor device
MURATA MANUFACTURING CO0 citations62
US10903803B2Jan 26, 2021
Semiconductor device and power amplifier module
MURATA MANUFACTURING CO0 citations62
US10777669B2Sep 15, 2020
Heterojunction bipolar transistor
MURATA MANUFACTURING CO1 citations62
US11735541B2Aug 22, 2023
Semiconductor device with protective protrusion
MURATA MANUFACTURING CO0 citations52
US11322462B2May 3, 2022
Semiconductor device
MURATA MANUFACTURING CO0 citations52
US11309852B2Apr 19, 2022
Power amplifier and compound semiconductor device
MURATA MANUFACTURING CO0 citations52
US11289434B2Mar 29, 2022
Semiconductor element and power amplification device
MURATA MANUFACTURING CO0 citations52
US11276689B2Mar 15, 2022
Semiconductor device and amplifier module
MURATA MANUFACTURING CO0 citations52
US11196394B2Dec 7, 2021
Power amplifier module
MURATA MANUFACTURING CO0 citations52
US10957617B2Mar 23, 2021
Semiconductor device
MURATA MANUFACTURING CO0 citations52
US10879847B2Dec 29, 2020
Transmission unit
MURATA MANUFACTURING CO0 citations52
US10855232B2Dec 1, 2020
Power amplifier module
MURATA MANUFACTURING CO0 citations52
US10707200B2Jul 7, 2020
Semiconductor device
MURATA MANUFACTURING CO0 citations52
US10665704B2May 26, 2020
Bipolar transistor and radio-frequency power amplifier module
MURATA MANUFACTURING CO0 citations52
US10665519B2May 26, 2020
Semiconductor chip, method for mounting semiconductor chip, and module in which semiconductor chip is packaged
MURATA MANUFACTURING CO0 citations52
US10475717B2Nov 12, 2019
Semiconductor chip, method for mounting semiconductor chip, and module in which semiconductor chip is packaged
MURATA MANUFACTURING CO0 citations52
US10355114B2Jul 16, 2019
Heterojunction bipolar transistor
MURATA MANUFACTURING CO0 citations52
US10134842B2Nov 20, 2018
Heterojunction bipolar transistor
MURATA MANUFACTURING CO1 citations52
US11631758B2Apr 18, 2023
Semiconductor device
MURATA MANUFACTURING CO0 citations51
US10594271B2Mar 17, 2020
Semiconductor device and power amplifier module
MURATA MANUFACTURING CO0 citations51
RENESAS TECH CORP
1 patentShowing the top 50 of 56 patents by PatentIndex Score.