Location History:
- Katsuta, JA (1978)
- Katsuta, JP (1978 - 1984)
Company Filing History:
Years Active: 1978-1984
Title: Yasuyuki Maeda: Innovator in AC Elevator Control Systems
Introduction
Yasuyuki Maeda is a prominent inventor based in Katsuta, Japan. He has made significant contributions to the field of elevator technology, particularly in the development of advanced control systems for AC elevators. With a total of 4 patents to his name, Maeda's work has had a substantial impact on the efficiency and safety of elevator operations.
Latest Patents
Maeda's latest patents include innovative systems designed to enhance the performance of AC elevators. One of his notable inventions is an AC elevator control system that employs a three-phase induction motor. This system controls the primary voltage supplied to the motor to manage motoring torque during acceleration and rated-speed running modes. Additionally, during deceleration, a power converter unit supplies low-frequency AC power to the motor, enabling regenerative braking. Another significant patent focuses on a control system that compares the actual speed of an elevator car with a speed command. This system ensures that the deviation between the actual speed and the commanded speed is minimized, allowing for a smooth stopping operation as the elevator approaches its target landing position.
Career Highlights
Yasuyuki Maeda has built a successful career at Hitachi, Ltd., where he has been instrumental in advancing elevator technology. His expertise in control systems has positioned him as a key figure in the development of innovative solutions that improve the functionality and reliability of elevators.
Collaborations
Maeda has collaborated with several talented individuals in his field, including Katsu Komuro and Nobuo Mitsui. These partnerships have fostered a creative environment that has led to the successful development of his patented technologies.
Conclusion
Yasuyuki Maeda's contributions to AC elevator control systems exemplify his dedication to innovation and excellence in engineering. His patents reflect a commitment to enhancing elevator safety and efficiency, making him a notable figure in the industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.