Inventor

SEKI SHUN-ICHI

JP21 patents

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

SEKI SHUN-ICHI

MATSUSHITA ELECTRIC INDUSTRIAL CO LTD

Electronic part and a method of production thereof

Surface acoustic wave device having a lamination structure

Electronic part and a method of production thereof

Method of manufacture of surface acoustic wave device

Surface acoustic wave devices and their manufacturing method

Surface acoustic wave device and method of manufacture

Resonator ladder surface acoustic wave filter suppressing spurious signals

Surface acoustic wave filter with multiple ground terminals

High frequency filter having saw and dielectric filters with different frequency temperature characteristic signs

Balanced-type surface acoustic wave lattice filter

Surface acoustic wave filter with different filter portions satisfying complex conjugate relationship of impedances

Surface acoustic wave device with interdigital transducers formed on a holding substrate thereof and a method of producing the same

Band elimination filter, filter device, antenna duplexer and communication apparatus

Surface acoustic wave filter, and antenna duplexer and communication equipment using the same

Antenna duplexer, design method for antenna duplexer, production method for antenna duplexer, and communication apparatus using the same

Resonator ladder type surface acoustic wave filter

Filter circuit having plural passing bands

Surface acoustic wave filter having parallel/serial resonator connection based on transmitting and receiving frequencies

SEKI SHUN-ICHI

Elastic wave element and electronic apparatus using same

INOUE TAKASHI

Acoustic wave device, and filter and duplexer using the same

PANASONIC CORP

Surface acoustic wave resonator and surface acoustic wave filter using the same