This inventor holds 3 USPTO granted patents. Top assignee: Matsushita Electric Industrial Co., Ltd.. Active years: 2006-2007.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Uji, JP (2006)
- Kyoto, JP (2006 - 2007)
Company Filing History:
Years Active: 2006-2007
Title: Keijiro Umehara: Innovator in Analog Circuit Technology
Introduction
Keijiro Umehara is a distinguished inventor based in Kyoto, Japan. He has made significant contributions to the field of analog circuit technology, holding a total of 3 patents. His work focuses on enhancing the performance and efficiency of electronic circuits, particularly in calibration and filtering systems.
Latest Patents
Umehara's latest patents include an innovative analog circuit automatic calibration system. This system is designed to calibrate an object circuit that is an analog circuit with characteristics that change based on an input set value. The system features a set value storage section, a characteristic detection section, and two characteristic change sections that optimize and maintain the circuit's performance.
Another notable patent is for a low-pass filter suitable for use in phase-locked loops (PLLs) and semiconductor integrated circuits. This invention provides a filtering characteristic equivalent to conventional filters while occupying a smaller circuit area. The low-pass filter includes first and second filtering means, current generating means, and adding means to produce an efficient output signal.
Career Highlights
Keijiro Umehara is currently employed at Matsushita Electric Industrial Co., Ltd., where he continues to innovate in the field of electronics. His work has been instrumental in advancing technologies that are widely used in various applications.
Collaborations
Umehara has collaborated with notable coworkers, including Shiro Dosho and Naoshi Yanagisawa. Their combined expertise has contributed to the successful development of several innovative technologies.
Conclusion
Keijiro Umehara's contributions to analog circuit technology exemplify his commitment to innovation and excellence. His patents reflect a deep understanding of electronic systems and a drive to improve their functionality. Umehara's work continues to influence the field and inspire future advancements in technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile