Inventor

GOTOH KUNIHIKO

JP55 patents

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

GOTOH KUNIHIKO

FUJITSU LTD

Regulator circuit and semiconductor integrated circuit device having the same

Method for fabricating an integrated circuit with multi-layer wiring having opening for fuse

Digitally controlled variable gain circuit

Common-mode feedback circuit and differential operational amplifier circuit having stable operation and low power consumption

PLL having switching circuit for maintaining lock during loss of input signal

Integration method and integration circuit offering improved signal-to-noise ratio, and voltage-controlled oscillator and frequency-voltage converter employing integration circuit

Digital AGC circuit

Variable attenuator for attenuating gain of analog signal in accordance with digital signal

Operational amplifier circuit having stable operating point

Electronic conversion circuit

D/A converter including output buffer having a controllable offset voltage

Digital-to-analog converter having resistor networks

Compander circuit

Constant current source circuit

Capacitor and method for fabricating the same

Variable resistor

Ringtrip judging circuit

Integrated circuit having fuse circuit

Rectifier circuit

Encoder circuit and A/D conversion circuit

Semiconductor integrated circuit with noise reduction circuit

Correction circuit controlling sensitivities of an oscillator circuit and electronic device using the same

Current switch and PLL in which it is used

Semiconductor device and method for testing semiconductor device

Voltage level setting circuit

Semiconductor integrated circuit having improved load drive characteristics

Semiconductor integrated circuit having a test circuit for testing an internal circuit

Filter characteristic regulating apparatus and regulating method therefor

Differential amplifier circuit improved to shorten a circuit recovery time thereof

Cyclic type D/A converter having error detection and correction system

Input/output protection circuit and semiconductor device having the same

Comparator circuit having improved output characteristics

Semiconductor device and method for testing semiconductor device

Half-wave rectifier circuit

Input circuit having level shift

Oscillator having switching capacitors and phase-locked loop employing same

Semiconductor integrated circuit device having a bias supply current

Integrated circuit and A/D conversion circuit

Reference voltage generator circuit

Semiconductor device and method for testing semiconductor device

Semiconductor integrated circuit

Operational amplifier, analog arithmetic circuit, and analog to digital converter

NITTO KOHKI CO

Pipe coupling plug

Seal ring

Coupling for breaking a seal film of a dispensing opening for a fluid-filled container

SEMICONDUCTOR TECH ACAD RES CT

Feedback amplifier circuit operable at low voltage by utilizing switched operational amplifier and chopper modulator

Differential amplifier circuit amplifying differential signals with selectively switching between differential signals and AD converter apparatus

Class AB CMOS output circuit equipped with CMOS circuit operating by predetermined operating current

(unassigned)

Pipe coupling socket

GOTOH KUNIHIKO

Switched capacitor circuit and stage circuit for AD converter