Company Filing History:
Years Active: 1995-2015
Title: Hiroshi Masumoto: Innovator in Charging Control Technology
Introduction
Hiroshi Masumoto is a prominent inventor based in Yokohama, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of charging control technologies. With a total of 5 patents to his name, Masumoto continues to push the boundaries of innovation.
Latest Patents
Masumoto's latest patents include a charging control circuit and a driver. The charging control apparatus he developed is designed to manage the charging of a battery connected to a battery terminal. It supplies the necessary voltage and current for a system circuit through an output terminal. This apparatus features a switching control circuit that regulates a DC-DC converter, which performs DC-DC conversion on an input voltage and outputs the resulting voltage to the output terminal. Additionally, it includes an output voltage detection circuit and a battery voltage detection circuit to monitor the respective voltages. The design also incorporates a first switch MOS transistor and a voltage control circuit that operates the transistor based on the battery voltage.
The driver patent includes a sensor that measures the driving current and voltage for external devices, such as capacitors. It features a phase angle estimation unit that assesses the phase angle variation of the input voltage, a voltage compensator for correcting driving voltage errors, and two current estimation units that analyze variations in charge and driving currents. A calculator within the driver determines the duty ratio for the PWM based on these variations.
Career Highlights
Hiroshi Masumoto is currently employed at Kabushiki Kaisha Toshiba, a leading technology company known for its innovative solutions. His work at Toshiba has allowed him to collaborate with other talented engineers and contribute to groundbreaking projects in the field of electrical engineering.
Collaborations
Masumoto has worked alongside notable colleagues, including Tsutomu Honda and Nobuo Tachikawa. Their combined expertise has fostered a collaborative environment that encourages innovation and the development of advanced technologies.
Conclusion
Hiroshi Masumoto is a distinguished inventor whose work in charging control technology has made a significant impact in the field. His patents reflect a commitment to innovation and excellence in engineering.