This inventor holds 8 USPTO granted patents. Top assignees: Aisin Seiki Kabushiki Kaisha, Aisin Seiki Company, Ltd.. Active years: 1991-2005.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Toyohashi, JP (1991 - 1998)
- Georgetown Novi, MI (US) (1999)
- Kariya, JP (2005)
Company Filing History:
Years Active: 1991-2005
Title: Chiaki Umemura: Innovator in Motor Control Technologies
Introduction
Chiaki Umemura is a notable inventor based in Toyohashi, Japan. He has made significant contributions to the field of motor control technologies, holding a total of 8 patents. His innovative work focuses on enhancing the efficiency and safety of motor operations.
Latest Patents
One of his latest patents is a driving control device of a motor. This device includes a phase current control mechanism that regulates the phase current fed to each phase coil of a motor. It aims to achieve a predetermined target current during a specified control period. Additionally, it features a convergent control device that manages the phase current after the control period ends. This ensures that the phase current convergent control concludes at an optimal timing, preventing reverse torque issues.
Another significant patent is the overheating protection system for a switching module. This system is designed to prevent thermal breakdown of switching devices while allowing the module to deliver the necessary current to a load, such as an electric motor. It incorporates a temperature detector, a temperature estimator, and a current limiter to maintain safe operational conditions.
Career Highlights
Chiaki Umemura has worked with prominent companies in the automotive and technology sectors, including Aisin Seiki Kabushiki Kaisha and Aisin Seiki Company, Ltd. His experience in these organizations has contributed to his expertise in developing advanced motor control systems.
Collaborations
Throughout his career, Umemura has collaborated with talented individuals, including Masanori Sugiyama and Akemi Ookawa. Their combined efforts have led to innovative solutions in the field of motor technology.
Conclusion
Chiaki Umemura's contributions to motor control technologies demonstrate his commitment to innovation and safety. His patents reflect a deep understanding of the complexities involved in motor operations, making him a valuable figure in the industry.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile