Inventor

YOKOYAMA KENJI

JP158 patents

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

YOKOYAMA KENJI

NIPPON MUSICAL INSTRUMENTS MFG

Sample hold circuit

Pulse-width modulation circuit

Power amplifier

Multi-channel audio power amplifier

Amplifier circuit with distortion cancellation function

Pulse-width modulation circuit with carrier signal frequency control

Pulse-width modulation circuit

Amplifier with power supply switching

Gain-controlled amplifier

Power supply circuit for electrical apparatus

Direct-coupled amplifier with output offset regulation

Frequency selection circuit

Direct current voltage regulating circuitry

YAMAHA CORP

Snubber circuit for a switching power source

Switching power supply circuit

Switching power circuit with current resonance for zero current switching

Acoustic apparatus and driving apparatus constituting the same

Switching regulated DC-DC converter using variable capacity diodes in the feedback circuit

Dynamic loudspeaker driving apparatus

Acoustic apparatus

Analog type magnetic recording and reproducing device with digital input/output coupling

Self exciting type switching power supply circuit

Vibration control for an optical pickup actuator driving device

Acoustic apparatus

Acoustic apparatus

TDK CORP

Magnetic recording medium comprising two magnetic layers of hexagonal ferrite magnetic particles and binder wherein the easy axes of the particle is specified

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium

Magnetic recording medium

Method for making a magnetic disk

Magnetic recording medium

SEIKO EPSON CORP

Method of manufacturing interconnect metallization comprising metal nitride and silicide

Ohmic contact to silicon substrate

Semiconductor devices and methods for manufacturing the same

Semiconductor device having multilayer interconnection structure

NIPPON TELEGRAPH & TELEPHONE

Packaging platform, optical module using the platform, and methods for producing the platform and the module

Optical waveguide circuit, its manufacturing method and optical waveguide module having the optical waveguide circuit

Optical module using wiring lead integrated resin substrate

TERUMO CORP

Blood reservoir

Hollow fiber membrane oxygenator

Applicator

FLYING MOLE CORP

Feedback circuit

Operational amplifier

CANON KK

Camera having light-source determining function

Camera

MITSUBISHI FUSO TRUCK & BUS

Suspension

Suspension

SONY CORP

Information processing apparatus and method, and program

YOKOYAMA KENJI

Semiconductor chip having staggered arrangement of bonding pads