This inventor holds 43 USPTO granted patents, primarily in Power Conversion Technology. Top assignees: Hitachi, Ltd., Hitachi Engineering Co., Ltd., Hitachi Building Systems Engineering and Service Co., Ltd.. Active years: 1978-1999.
Location History:
- Katsuta, JA (1978)
- Ibaraki, JP (1981)
- Hitachi, JP (1989)
- Mobara, JP (1993)
- Hitachinaka, JP (1997 - 1998)
- Katsuta, JP (1981 - 1999)
Company Filing History:
43 out of 42,719Â 
2 out of 162Â 
1 out of 2Â Years Active: 1978-1999
Areas of Expertise:
Title: Innovations and Contributions of Kiyoshi Nakamura
Introduction
Kiyoshi Nakamura, a prominent inventor based in Katsuta, Japan, has made significant contributions to the field of engineering, particularly in elevator control systems and electric vehicle technology. With a remarkable portfolio of 43 patents, his innovations demonstrate a commitment to advancing technology for enhanced user experience and efficiency.
Latest Patents
Among his latest patents, Nakamura has developed a method and system for controlling elevators, which includes an elevator group supervisory control method that effectively manages a plurality of elevators serving multiple floors. This invention allows users to input qualitative requests, offering guidance for elevator operation that is translated into precise control targets for system execution. Additionally, he has created a control system for electric vehicles that adjusts inverter output frequency based on a frequency-to-time rate-of-change command, ensuring smooth acceleration and deceleration while maintaining optimal torque and adhesion.
Career Highlights
Nakamura's career includes significant roles at leading companies like Hitachi, Ltd. and Hitachi Engineering Co., Ltd. His work in these esteemed organizations has facilitated advanced research and the practical application of his innovative concepts, establishing him as a leader in his field.
Collaborations
Throughout his career, Kiyoshi Nakamura has collaborated with notable colleagues such as Hiromi Inaba and Tokunosuke Tanamachi. These partnerships have furthered his research and development efforts, contributing to the successful realization of several groundbreaking projects.
Conclusion
Kiyoshi Nakamura's dedication to innovation has positioned him as a key figure in engineering, influencing both elevator systems and electric vehicle technology. His numerous patents showcase his ability to merge theoretical knowledge with practical applications, paving the way for future advancements in these industries.