This inventor holds 49 USPTO granted patents and 1 published patent application, plus 1 CIPO patent and 5 EPO patents, primarily in Video Technology. Top assignees: Kokusai Denshin Denwa Kabushiki Kaisha, Oki Electric Industry Co., Ltd., Kddi Corporation. Active years: 1984-2018.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Ichigayatamachi, JP (1984)
- Ichigayata, JP (1985)
- Hiratsuka, JP (1989)
- Amagasaki, JP (1993)
- Fujimi, JP (1989 - 1994)
- Kunitachi, JP (2002)
- Chiba, JP (2004 - 2006)
- Saitama, JP (2005 - 2012)
- Chiyoda-ku, JP (2014 - 2017)
- Tokyo, JP (1986 - 2018)
Company Filing History:








Years Active: 1984-2018
Areas of Expertise:
Title: Innovations of Shuichi Matsumoto: A Patented Legacy in Tokyo
Introduction: Shuichi Matsumoto is a distinguished inventor based in Tokyo, Japan, recognized for his significant contributions to the field of electrical engineering. With a remarkable portfolio of 49 patents, his work primarily focuses on advanced power supply control methods and waterproof electronic equipment, showcasing his innovative spirit and technical expertise.
Latest Patents: Among his latest patents are the "Dither Current Power Supply Control Method" and "Dither Current Power Supply Control Apparatus." The dither current power supply control method is designed to prevent discrepancies between the target average current and the detected average current. This is particularly crucial when medium currents fluctuate due to variations in response time. By implementing negative feedback control, which utilizes a command medium current adjusted based on experimental data, this method achieves a stable load current with minimal transient fluctuations. Another notable patent is the "Waterproof Electronic Equipment Unit," which innovatively reduces the size of electronic devices by utilizing a mounting surface's depressed areas effectively. This unit includes a hermetically sealed circuit substrate and features a water-repellent filter, ensuring durability while maintaining optimal functionality.
Career Highlights: Matsumoto has had an illustrious career, contributing his expertise to esteemed companies such as Kokusai Denshin Denwa Kabushiki Kaisha (KDDI) and Oki Electric Industry Co., Ltd. At these organizations, he played a pivotal role in developing cutting-edge technologies that have had a lasting impact on the industry.
Collaborations: Throughout his career, Matsumoto has collaborated with notable professionals, including Ryoichi Kawada and Takahiro Hamada. These partnerships have fostered a creative environment conducive to innovation and have significantly enriched his portfolio of patents.
Conclusion: Shuichi Matsumoto exemplifies the essence of innovation within the realm of electrical engineering. His 49 patents, particularly in power supply control and waterproof technology, reflect his dedication to advancing the field. With a career marked by collaboration and significant contributions to top-tier companies, Matsumoto continues to inspire future inventors in Tokyo and beyond.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile