This inventor holds 8 USPTO granted patents and 2 published patent applications. Top assignees: Seiko Epson Corporation, Denso Corporation. Active years: 2011-2026.
Location History:
- Fujimi, JP (2020)
- Fujimi-machi, JP (2011 - 2023)
Company Filing History:
8 out of 34,195 
1 out of 20,369 
Years Active: 2011-2026
Title: Jun Uehara: Innovator in Circuit Devices and Oscillators
Introduction
Jun Uehara is a prominent inventor based in Fujimi, Japan. He has made significant contributions to the field of circuit devices and oscillators, holding a total of 8 patents. His innovative designs have advanced technology in various applications.
Latest Patents
Uehara's latest patents include a circuit device and oscillator that features a first phase comparison circuit. This circuit includes a sampling circuit that samples a feedback signal based on a reference clock signal. Additionally, it has a first charge pump circuit that outputs a current corresponding to a sampling voltage. Another notable aspect is the second phase comparison circuit, which includes a dead zone detection circuit. This circuit detects whether a phase difference between the reference clock signal and a feedback clock signal falls within a dead zone. It outputs a phase difference signal when the phase difference does not fall within the dead zone. Furthermore, the second charge pump circuit is set to be disabled or in a low power consumption mode during a dead zone period.
Another patent involves a circuit device that includes a first terminal and a first oscillation circuit. This circuit oscillates a resonator and generates a first voltage for automatic gain control, which controls the amplitude of a signal output from the resonator. A digital signal generation circuit generates a digital signal corresponding to the first voltage, while a first interface circuit outputs the digital signal to the first terminal.
Career Highlights
Throughout his career, Jun Uehara has worked with notable companies such as Seiko Epson Corporation and Denso Corporation. His experience in these organizations has contributed to his expertise in circuit design and innovation.
Collaborations
Uehara has collaborated with several talented individuals in his field, including Akio Tsutsumi and Hideki Sato. These collaborations have fostered a creative environment that has led to groundbreaking advancements in technology.
Conclusion
Jun Uehara's contributions to circuit devices and oscillators demonstrate his innovative spirit and technical expertise. His patents reflect a commitment to advancing technology and improving electronic systems.