Inventor

FUJIWARA JOJI

JP53 patents

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

FUJIWARA JOJI

SKYWORKS FILTER SOLUTIONS JAPAN CO LTD

Filter devices having reduced spurious emissions from lamb waves

Acoustic wave device with suppressed higher order transverse modes

Electronic device including filter

Elastic wave element with interdigital transducer electrode

High frequency filter with phase compensating circuit

High-frequency filter including matching circuit

Filter devices having improved attenuation characteristics

Ladder-type elastic wave filter having series and parallel resonators

Ladder-type surface acoustic wave filter including series and parallel resonators

Elastic wave filter and duplexer using same

Multimode elastic wave device

Ladder-type elastic wave filter and antenna duplexer using same

Acoustic wave elements, antenna duplexers and electronic devices

Filter devices having reduced spurious emissions from lamb waves

SKYWORKS SOLUTIONS INC

Suppression of transverse mode spurious signals in surface acoustic wave devices utilizing a dense film above gap region of interdigital transducer electrodes

Reduced temperature coefficient of frequency at filter transition band while retaining pass-band width

Suppression of transverse mode spurious signals in surface acoustic wave devices utilizing a gap hammer structure

Suppression of spurious signals in surface acoustic wave devices

Reduced temperature coefficient of frequency at filter transition band while retaining pass-band width

Shear horizontal mode acoustic wave device with multilayer interdigital transducer electrode

Single antenna inductor to match all bands in a front-end module

Filter assembly operating at a wider passband with improved reflection coefficient

PANASONIC CORP

Module component and method for manufacturing the same

High-frequency filter

Antenna duplexer and communication device using the same

Acoustic wave duplexer

Duplexer

Surface acoustic wave filter and surface acoustic wave duplexer

Transmitter receiver unit and electronic apparatus using same

FUJIWARA JOJI

Elastic wave element, and electrical apparatus and duplexer using same

Acoustic wave resonator and acoustic wave filter using the same

Surface acoustic wave filter device, duplexer including the same, and electronic apparatus including the same

Antenna duplexer and communication device using the same

Elastic wave filter, and duplexer and electronic device using same

Ladder-type filter including a dielectric film having a side surface with a heightwise inclination

SKYWORKS PANASONIC FILTER SOLUTIONS JAPAN CO LTD

Electronic device including filter

Ladder-type surface acoustic wave filter and duplexer including the same

Elastic wave filter, and duplexer and electronic device using same

Antenna duplexer

TSURUNARI TETSUYA

Antenna sharing device

Elastic wave filter device and antenna duplexer using same

Duplexer

NAKANISHI HIDEKAZU

Acoustic wave device with reduced higher order transverse modes

Acoustic wave resonator and duplexer using same

YAMAJI TORU

Antenna duplexer

Elastic wave device

KOMATSU TOMOYA

Elastic wave element

NAKAMURA HIROYUKI

Antenna duplexer and communication apparatus employing the same

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Composite electronic component

GOTO REI

Elastic wave resonator, elastic wave filter, and antenna sharing device using the same