Inventor

ISHIKAWA YOHEI

JP59 patents

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

ISHIKAWA YOHEI

MURATA MANUFACTURING CO

Dielectric lens apparatus

High-frequency circuit device and communication apparatus

Radio-frequency radiation source, radio frequency radiation source array, antenna module, and radio equipment

Dielectric waveguide of a laminated structure

Antenna device and radar module

Antenna-shared distributor and transmission and receiving apparatus using same

Planar dielectric line and integrated circuit using the same line

Dielectric resonator and filter utilizing a non-radiative dielectric waveguide device

Nonradiative dielectric line apparatus including a specifically oriented circuit board

Transmitter-receiver

Nonradiative dielectric line apparatus and instrument for measuring characteristics of a circuit board

Dielectric resonator and filter utilizing a nonradiative dielectric waveguide device

Complex circuit board, nonreciprocal circuit device, resonator, filter, duplexer communications device, circuit module, complex circuit board manufacturing method, and nonreciprocal circuit device manufacturing method

Resonator, filter, duplexer, and communication device

Complex circuit board with an electrode and air gap between dielectric and magnetic substrates

Apparatus for measuring electrical characteristics of circuit

Dielectric resonator, inductor, capacitor, dielectric filter, oscillator, and communication device

Dielectric lens antenna having heating body and radio equipment including the same

High-frequency transmission line, dielectric resonator, filter, duplexer, and communication device, with an electrode having gaps in an edge portion

Radio frequency module, communication device, and radar device

High-frequency circuit device and communication apparatus

Dielectric resonator formed by polygonal openings in a dielectric substrate, and a filter, duplexer, and communication apparatus using same

Guide marker and visual guide marker device

Antenna apparatus and transmission and receiving apparatus using same

Communication device having a spurious wave blocking circuit formed of a plural fundamental pattern

Antenna apparatus and transmission and receiving apparatus using the same

High frequency multi-layer module with electronic component receiving aperture and conductive via

Dielectric line switch and antenna device

High-frequency semiconductor device

Dielectric resonator capable of varying resonant frequency

Dielectric resonator capable of varying resonant frequency

Slot electrode dielectric resonator, inductor, capacitor, dielectric filter, oscillator, and communication device

High-frequency semiconductor device having microwave transmission line being formed by a gate electrode source electrode and a dielectric layer in between

Planar dielectric integrated circuit

TM mode dielectric resonator and TM mode dielectric filter and duplexer using the resonator

Band-pass filter apparatus using superconducting integrated nonradiative dielectric waveguide

Multi-layer thin-film electrode, for a high-frequency transmission line, resonator, and filter

Dielectric line waveguide which forms electronic circuits

Superconducting multilayer electrode and method of producing same

Planar dielectric integrated circuit

Nonradiative planar dielectric line and integrated circuit

High frequency multi-layer module comprising a dielectric resonator

Transmission line connecting structure and transmission/reception device

High-frequency circuit device using slot line and communication apparatus having high frequency circuit device

Complex circuit board, nonreciprocal circuit device, resonator, filter, duplexer, communications device, circuit module, complex circuit board manufacturing method, and nonreciprocal circuit device manufacturing method

Dielectric resonator, inductor, capacitor, dielectric filter, oscillator, and communication device

Dielectric resonator, dielectric filter, dielectric duplexer, and method for manufacturing dielectric resonator

TM mode dielectric resonator and TM mode dielectric filter and duplexer using the resonator

RESONAC CORP

Adsorbent particles, method for producing adsorbent particles, base material particles, filling column and method for recovering rare earth element

Adsorbent particles, base particle, packed column, and method for recovering rare-earth element