This inventor holds 1 USPTO granted patent. Top assignee: Aisin Seiki Kabushiki Kaisha. Active years: 2002.
Company Filing History:
Years Active: 2002
Title: Innovations by Chiaki Homna in Electric Motor Control
Introduction: Chiaki Homna is an inventive mind based in Aichi-ken, Japan, recognized for his contribution to the field of electric motor control. With a remarkable patent portfolio, he has notably enhanced the efficiency and reliability of electric motors, specifically through innovative control devices.
Latest Patents: One of Chiaki Homna's pivotal patents is the "Chopping Energization Control Device for Electric Motor." This invention utilizes a pair of switching elements, specifically IGBT/U and IGBT/L, to manage the electric power supplied from a DC power source to the phase coil of a DC motor, particularly in switched reluctance (SR) motors. The device introduces a method where one switching element is alternately activated while the other remains constantly on. To mitigate uneven heat generation between these elements, a swapping mechanism is incorporated, ensuring that conditions can be exchanged after a specified time, such as 10 milliseconds. This cyclical swapping notably leads to equal heat generation in the switching elements, enhancing the device's overall effectiveness and longevity.
Career Highlights: Chiaki Homna is affiliated with Aisin Seiki Kabushiki Kaisha, a prominent company known for its advanced automotive technologies. His innovative contributions have solidified his standing in the industry, reflecting his dedication to enhancing electric motor systems through meticulous engineering and design.
Collaborations: Throughout his career, Chiaki has worked alongside esteemed colleagues, including Masanori Sugiyama and Yoshihide Suzuki. Their collaboration has fostered a creative environment that has led to significant advancements in electric motor control technologies, benefiting the automotive sector and beyond.
Conclusion: Chiaki Homna’s inventive spirit and technical expertise in the realm of chopping energization control devices have set a benchmark in electric motor technology. His patent record not only showcases his ingenuity but also the transformative impact of his work on modern electric motors, positioning him as a notable figure in innovation within the industry.