This inventor holds 28 USPTO granted patents and 1 published patent application and 8 EPO patents, primarily in Power Conversion Technology. Top assignees: Hitachi, Ltd., Hitchi, Ltd.. Active years: 1993-2023.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ibaraki, JP (1993 - 1995)
- Nishiibaraki, JP (1995 - 1996)
- Ibaraki-ken, JP (1996 - 1998)
- Nishiibaraki-Gun, JP (1996 - 2001)
- Iwase-machi, JP (1997 - 2002)
- Iwase, JP (1994 - 2003)
- Tokyo, JP (2003 - 2023)
Company Filing History:
Years Active: 1993-2023
Areas of Expertise:
Title: Kiyoshi Nakata - Innovator in Electric Drive Technologies
Introduction
Kiyoshi Nakata, an esteemed inventor based in Iwase, Japan, holds an impressive portfolio of 28 patents. His work primarily focuses on advanced electric drive technologies, significantly contributing to the efficiency and reliability of motor systems and power conversion devices.
Latest Patents
Among his notable inventions are the three-phase AC motor drive device, rail vehicle equipped with the same, and the three-phase AC motor drive method. The three-phase AC motor drive device includes a load, an inverter device for driving the load, and an MCOK_A that connects and disconnects the inverter device from the load. It also features a voltage detector to monitor voltages across phases and a current detector for measuring phase currents. The arrangement of these components facilitates efficient power management and operation. Additionally, his power conversion device is designed for size reduction and reliability, incorporating a half-bridge configuration with semiconductor modules arranged to enhance cooling and efficiency.
Career Highlights
Kiyoshi Nakata has made significant strides in the electrical engineering field through his tenure at renowned companies, including Hitachi, Ltd. His dedication to innovation has enabled the development of systems that improve performance and reduce the complexity of electrical devices.
Collaborations
During his career, Nakata has collaborated with noteworthy professionals, including Tokunosuke Tanamachi and Kiyoshi Nakamura. These partnerships have fostered a creative environment, leading to the successful completion of various groundbreaking projects and patents.
Conclusion
Kiyoshi Nakata's commitment to innovation within electric drive technologies has transformed industry standards. His recent patents reflect a deep understanding of motor systems and their applications, significantly impacting the transportation sector and beyond. Nakata's contributions continue to inspire future advancements in electrical engineering and motor technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile