This inventor holds 5 USPTO granted patents and 1 published patent application and 2 EPO patents. Top assignees: Mitsubishi Heavy Industries Thermal Systems, Ltd., Mitsubishi Heavy Industries Limited. Active years: 2014-2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Aichi, JP (2014)
- Tokyo, JP (2022)
Company Filing History:
4 out of 172 
1 out of 4,746 
Years Active: 2014-2025
Title: Toyohisa Kawashima: Innovator in Electric Compressor Technology
Introduction
Toyohisa Kawashima is a notable inventor based in Aichi, Japan. He has made significant contributions to the field of electric compressor technology, holding a total of five patents. His work focuses on enhancing the efficiency and reliability of electric compressors, particularly in the context of ripple voltage management.
Latest Patents
Kawashima's latest patents include a control device for electric compressors, a control method, and a program designed to ensure the continued operation of electric compressors even when the ripple voltage exceeds a predetermined threshold value. One of his innovative methods involves a detection unit that monitors the ripple voltage of the compressor, a determination unit that assesses whether the voltage exceeds the threshold, and a control unit that adjusts the motor's rotation speed accordingly. Another patent focuses on a method for detecting ripple voltage, utilizing an acquiring unit to gather voltage values at irregular intervals and a waveform computing unit to analyze the ripple component of the input voltage.
Career Highlights
Throughout his career, Toyohisa Kawashima has worked with prominent companies such as Mitsubishi Heavy Industries Thermal Systems, Ltd. and Mitsubishi Heavy Industries Limited. His experience in these organizations has allowed him to develop and refine his innovative ideas in electric compressor technology.
Collaborations
Kawashima has collaborated with notable colleagues, including Makoto Hattori and Kyohei Watanabe. Their combined expertise has contributed to advancements in the field of electric compressors.
Conclusion
Toyohisa Kawashima's contributions to electric compressor technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the efficiency and reliability of electric compressors in various applications.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile