Inventor

TAKATA TOSHIAKI

JP53 patents

⚠️ This page may combine multiple inventors who share the name “TAKATA TOSHIAKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

MURATA MANUFACTURING CO

39 patents

US6919777B2Jul 19, 2005

Surface acoustic wave filter device

MURATA MANUFACTURING CO29 citations92

US6717487B2Apr 6, 2004

Surface acoustic wave filter, and communication apparatus using the same

MURATA MANUFACTURING CO21 citations92

US6557225B2May 6, 2003

Method of producing surface acoustic wave device

MURATA MANUFACTURING CO26 citations91

US6404101B1Jun 11, 2002

Surface acoustic wave device

MURATA MANUFACTURING CO32 citations90

US11496116B2Nov 8, 2022

Acoustic wave filter device, multiplexer and composite filter device

MURATA MANUFACTURING CO7 citations86

US7619491B2Nov 17, 2009

Elastic wave duplexer

MURATA MANUFACTURING CO19 citations82

US11929737B2Mar 12, 2024

Acoustic wave filter

MURATA MANUFACTURING CO6 citations75

US7049908B2May 23, 2006

Surface acoustic wave device and communication apparatus

MURATA MANUFACTURING CO9 citations74

US11916536B2Feb 27, 2024

Filter device and multiplexer

MURATA MANUFACTURING CO2 citations73

US11405018B2Aug 2, 2022

Filter and multiplexer

MURATA MANUFACTURING CO2 citations73

US11323098B2May 3, 2022

Duplexer

MURATA MANUFACTURING CO3 citations73

US10840888B2Nov 17, 2020

Multiplexer

MURATA MANUFACTURING CO4 citations73

US10666229B2May 26, 2020

Duplexer

MURATA MANUFACTURING CO2 citations73

US10361679B2Jul 23, 2019

Multiplexer

MURATA MANUFACTURING CO4 citations73

US10355667B2Jul 16, 2019

Ladder filter, elastic wave filter module, and duplexer

MURATA MANUFACTURING CO2 citations73

US10236861B2Mar 19, 2019

Ladder filter and duplexer

MURATA MANUFACTURING CO2 citations73

US9998098B2Jun 12, 2018

Band pass filter and duplexer

MURATA MANUFACTURING CO6 citations73

US12199591B2Jan 14, 2025

Filter device, multiplexer, radio frequency front-end circuit, and communication device

MURATA MANUFACTURING CO1 citations64

US7486158B2Feb 3, 2009

Branching filter

MURATA MANUFACTURING CO4 citations63

US6933803B2Aug 23, 2005

Surface acoustic wave filter, branching filter, and communication apparatus

MURATA MANUFACTURING CO2 citations63

US10277191B2Apr 30, 2019

Composite filter apparatus, high-frequency front end circuit, and communication apparatus

MURATA MANUFACTURING CO1 citations62

US6815834B2Nov 9, 2004

Electronic part

MURATA MANUFACTURING CO5 citations62

US7541722B2Jun 2, 2009

Electronic component and manufacturing method thereof

MURATA MANUFACTURING CO2 citations57

US12542537B2Feb 3, 2026

Filter device and multiplexer

MURATA MANUFACTURING CO0 citations52

US12542534B2Feb 3, 2026

Filter device, multiplexer, high frequency front end circuit, and communication apparatus

MURATA MANUFACTURING CO0 citations52

US12512816B2Dec 30, 2025

High frequency filter and multiplexer

MURATA MANUFACTURING CO0 citations52

US12512818B2Dec 30, 2025

Multiplexer

MURATA MANUFACTURING CO0 citations52

US12512820B2Dec 30, 2025

Filter device and multiplexer

MURATA MANUFACTURING CO0 citations52

US12438522B2Oct 7, 2025

Filter and multiplexer

MURATA MANUFACTURING CO0 citations52

US12261590B2Mar 25, 2025

Acoustic wave filter, high frequency module, and multiplexer

MURATA MANUFACTURING CO0 citations52

US11929726B2Mar 12, 2024

Multiplexer

MURATA MANUFACTURING CO0 citations52

US11929736B2Mar 12, 2024

Multiplexer

MURATA MANUFACTURING CO0 citations52

US11811393B2Nov 7, 2023

Multiplexer, radio frequency front-end circuit, and communication device

MURATA MANUFACTURING CO0 citations52

US11558035B2Jan 17, 2023

Multiplexer

MURATA MANUFACTURING CO0 citations52

US11362643B2Jun 14, 2022

Multiplexer

MURATA MANUFACTURING CO0 citations52

US11258428B2Feb 22, 2022

Filter device and multiplexer

MURATA MANUFACTURING CO0 citations52

US11171630B2Nov 9, 2021

Ladder filter, duplexer, and elastic wave filter device

MURATA MANUFACTURING CO0 citations52

US9614278B2Apr 4, 2017

Ladder filter and duplexer

MURATA MANUFACTURING CO0 citations52

US9154113B2Oct 6, 2015

Ladder acoustic wave filter device and branching filter

MURATA MANUFACTURING CO1 citations52

MITSUBISHI GAS CHEMICAL CO

8 patents

US5747632AMay 5, 1998

Polycarbonate resin with high flowability and process for producing the same

MITSUBISHI GAS CHEMICAL CO30 citations92

US5324454AJun 28, 1994

Conductive copolycarbonate-siloxane compositions

MITSUBISHI GAS CHEMICAL CO26 citations89

US5717055AFeb 10, 1998

Production method of polycarbonate resin pellets

MITSUBISHI GAS CHEMICAL CO14 citations72

US4477682AOct 16, 1984

Process for producing 4-hydroxy-2,4,6-trimethylcyclohexa-2,5-diene-1-one

MITSUBISHI GAS CHEMICAL CO8 citations72

US5273685ADec 28, 1993

Thermoplastic resin composition

MITSUBISHI GAS CHEMICAL CO10 citations70

US5969084AOct 19, 1999

Process for producing polycarbonate resin with high flowability

MITSUBISHI GAS CHEMICAL CO6 citations63

US5428090AJun 27, 1995

Polycarbonate polymer derived from dihydroxy compound having triphenylamine structure and process for producing the same

MITSUBISHI GAS CHEMICAL CO5 citations62

US4939231AJul 3, 1990

Process for producing fatty acid-terminated polycarbonate resin

MITSUBISHI GAS CHEMICAL CO4 citations61

TAKATA TOSHIAKI

2 patents

US8222973B2Jul 17, 2012

Elastic wave resonator, ladder filter and duplexer

TAKATA TOSHIAKI2 citations60

US8791774B2Jul 29, 2014

Branching filter

TAKATA TOSHIAKI2 citations57

SHINETSU CHEMICAL CO

1 patent

US5366805ANov 22, 1994

Polycarbonate resin/silicone rubber integrally molded article and method for making

SHINETSU CHEMICAL CO86 citations96

Showing the top 50 of 53 patents by PatentIndex Score.