Naoki Kurihara

Title: Naoki Kurihara: Delay-Circuit Inventor

Introduction

Naoki Kurihara is an inventor based in Kyoto, Japan, whose patent work focuses on delay circuits and timing control. He is associated with Rohm Co., Ltd. and is credited with 2 patents.

Latest Patents

Kurihara’s listed patents address circuit designs for controlling signal delay and supporting precise timing.

- **Delay circuit.** This invention describes a delay element made from series-connected circuit elements whose delay time varies with the voltage of a shared power supply line. It also describes a phase-locked loop (PLL) that adjusts the supply voltage by comparing the oscillator’s output phase with a reference clock, enabling the oscillator to lock to a predetermined frequency.

- **Delay time control circuit.** This design uses series-connected unit delay circuits, each containing two inverters, alongside buffer circuits and connecting lines. The arrangement produces a delayed output signal through selected connections between the circuit elements.

Career Highlights

Kurihara’s patent portfolio reflects work on delay and timing-control circuitry. His inventions describe ways to manage signal timing through circuit structure and, in one design, supply-voltage control.

Collaborations

Kurihara’s listed coworkers include Jun Iida and Yoshikazu Iinuma. His company affiliation is Rohm Co., Ltd.

Conclusion

Naoki Kurihara’s two listed patents focus on delay circuits and signal-timing control, highlighting his contributions to circuit design at Rohm Co., Ltd.