Location History:
- Fukuoka, JP (2016)
- Kitakyushu, JP (2019)
Company Filing History:
Years Active: 2016-2019
Title: Tetsumi Narita: Innovator in Power Conversion Technology
Introduction
Tetsumi Narita is a prominent inventor based in Fukuoka, Japan. He has made significant contributions to the field of power conversion technology, holding a total of 3 patents. His innovative work focuses on enhancing the efficiency and functionality of power conversion devices.
Latest Patents
Narita's latest patents include a power conversion device and a power conversion method. The power conversion device features a switching circuit that comprises multiple switching elements, including a first and a second switching element connected in series. The switch driver is equipped with three switching pattern controllers that manage the operation of these elements. The first controller executes a pattern that allows current to flow in reverse through the first switching element while keeping the second element off. The second controller switches the current direction through the first element to forward, while the third controller turns off the first element and activates the second.
Another notable patent is a power conversion apparatus that utilizes a controller to manage a chopper and an inverter. This apparatus generates an alternating-current (AC) voltage waveform with distinct first and second parts. The chopper produces the first part with a higher absolute value than the DC power supply voltage, while the inverter generates the second part with a lower absolute value. The controller alternates the activation of the switching elements to create the desired AC voltage output.
Career Highlights
Tetsumi Narita is currently employed at Yaskawa Electric Corporation, a leading company in the field of automation and power conversion technologies. His work at Yaskawa has allowed him to develop and refine his innovative ideas, contributing to the company's reputation for excellence in engineering and technology.
Collaborations
Throughout his career, Narita has collaborated with notable colleagues, including Kozo Ide and Seiji Fujisaki. These partnerships have fostered a creative environment that encourages the exchange of ideas and advancements in technology.
Conclusion
Tetsumi Narita's contributions to power conversion technology exemplify his dedication to innovation and engineering excellence. His patents reflect a deep understanding of electrical systems and a commitment to improving power conversion methods. His work continues to influence the industry and inspire future advancements.