This inventor holds 4 USPTO granted patents and 2 published patent applications. Top assignees: Matsushita Electric Industrial Co., Ltd., Panasonic Intellectual Property Management Co., Ltd.. Active years: 1998-2022.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Takefu, JP (1998)
- Kadoma, JP (2000)
- Osaka, JP (2004 - 2022)
Company Filing History:

Years Active: 1998-2022
Title: The Innovations of Toshiki Tsubouchi
Introduction
Toshiki Tsubouchi is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of devices that enhance the efficiency and performance of electrical systems. With a total of 4 patents to his name, Tsubouchi's work reflects a commitment to innovation and technological advancement.
Latest Patents
Tsubouchi's latest patents include an inrush current suppression device and a motor drive device. The inrush current suppression device is designed to mitigate the inrush current that flows from a DC power supply through a mechanical switch. It features a first capacitor connected to the positive terminal of the DC power supply, a semiconductor switching element, a resistance element, and a control circuit that manages the ON and OFF times of the semiconductor switching element using a PWM signal.
The motor driving device is engineered for motors with multi-phase coils. It incorporates a wide-angle feeding device that supplies power to three-phase coils over a 150-degree electrical angle. Additionally, it includes a feeding amount controller that regulates the power supplied to the coils. This innovative structure minimizes torque ripples, vibrations, and noise during operation, while also enhancing the motor's output and efficiency.
Career Highlights
Throughout his career, Toshiki Tsubouchi has worked with prominent companies such as Matsushita Electric Industrial Co., Ltd. and Panasonic Intellectual Property Management Co., Ltd. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects.
Collaborations
Tsubouchi has collaborated with notable colleagues, including Masahiro Yasohara and Kazuyuki Takada. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies.
Conclusion
Toshiki Tsubouchi's contributions to electrical engineering through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry, paving the way for future innovations.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile