Company Filing History:
Years Active: 1997-2003
Title: Umeo Oshio: Innovator in DC-DC Converters and Phase-Synchronization Circuits
Introduction
Umeo Oshio is a prominent inventor based in Kawasaki, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of DC-DC converters and phase-synchronization circuits. With a total of 6 patents to his name, Oshio continues to push the boundaries of innovation in his field.
Latest Patents
Oshio's latest patents include a groundbreaking DC-DC converter and a sophisticated phase-synchronization method. The DC-DC converter features N capacitors with identical capacitances, initially coupled in series and charged by an external power supply voltage. It incorporates a circuit that allows the N capacitors to be coupled in parallel while varying the duty ratio of the charging timing. This design enables the internal power supply voltage output from the DC-DC converter to be adjusted effectively. Additionally, his phase-synchronization circuit is designed to establish phase synchronization for signals with reduced time. It includes a phase error detection circuit that identifies phase errors in a given clock signal and produces a first phase-error signal. A second phase-error signal is created to minimize the time required for establishing phase synchronization, which is selectively supplied to a phase control circuit.
Career Highlights
Oshio is currently employed at Fujitsu Corporation, where he applies his expertise in electrical engineering to develop innovative solutions. His work at Fujitsu has allowed him to collaborate with other talented engineers and contribute to the company's reputation for technological advancement.
Collaborations
Some of his notable coworkers include Takao Sugawara and Takenori Ohshima. Their collaborative efforts have further enhanced the innovative projects at Fujitsu Corporation.
Conclusion
Umeo Oshio is a distinguished inventor whose work in DC-DC converters and phase-synchronization circuits has made a significant impact in the field of electrical engineering. His contributions continue to inspire future innovations and advancements in technology.