This inventor holds 83 USPTO granted patents and 1 published patent application and 9 EPO patents, primarily in Power Conversion Devices (CPC class 503227). Top assignees: Sumitomo Electric Industries, Limited, Olympus Optical Company, Ltd., Mitsubishi Electric Corporation. Active years: 1977-2025.
Inventors with similar research interests:
Location History:
- Yokohama, JA (1977)
- Okazaki, JP (1981)
- Kawasaki, JP (1994 - 2000)
- Kanagawa, JP (1991 - 2009)
- Yokohama, JP (1978 - 2011)
- Mie, JP (2012)
- Hamura, JP (2008 - 2015)
- Okaya, JP (1994 - 2017)
- Hamura Tokyo, JP (2019)
- Yokkaichi, JP (2012 - 2021)
- Tokyo, JP (1987 - 2024)
Company Filing History:
23 out of 10,631 
21 out of 5,729 
12 out of 16,586 
Years Active: 1977-2025
Areas of Expertise:
Title: Shigeo Hayashi - A Pioneer in Power Conversion Technology
Introduction: Shigeo Hayashi, renowned for his exceptional contributions to power conversion technology, resides in Tokyo, Japan. With an impressive portfolio comprising 80 patents, Hayashi has made significant strides in the realm of electrical engineering, particularly in the development of innovative power conversion devices.
Latest Patents: Among his latest patents, notable inventions include a power conversion device with individual cell and arm balancing. This device features a power converter consisting of multiple arms, each containing converter cells connected in a cascade arrangement. The invention focuses on effective AC current control and individual voltage control to enhance performance. Another significant patent involves a device that converts electric power between DC and AC circuits. This innovation comprises a series of sub-modules, integrating energy accumulation elements and semiconductor circuits to facilitate efficient power conversion.
Career Highlights: Throughout his career, Shigeo Hayashi has worked with esteemed companies such as Sumitomo Electric Industries, Limited and Olympus Optical Company, Ltd. His work has established him as a pivotal figure in advancing technologies within these organizations, especially concerning power conversion applications.
Collaborations: Hayashi has collaborated with several notable colleagues, including Mitsuaki Nishie and Takeshi Ito. These partnerships have fostered an environment of innovation and creativity, leading to the development of groundbreaking technologies that have influenced the industry significantly.
Conclusion: Shigeo Hayashi stands out as a prominent inventor in the field of power conversion technology. His extensive work has not only garnered numerous patents but also contributed substantially to advancements in electrical engineering. With his continued dedication to innovation, Hayashi's influence on the field of power conversion devices will undoubtedly endure for years to come.