Location History:
- Saitama, JP (1991)
- Tokyo, JP (2001)
- Shinagawa-Ku, JP (2004)
- Kanagawa, JP (1997 - 2018)
- Fukushima, JP (2017 - 2018)
- Ibaraki, JP (2020)
Company Filing History:
Years Active: 1991-2020
Title: Innovations by Eiji Kumagai in Charging and Power Storage Technologies
Introduction
Eiji Kumagai, an accomplished inventor located in Kanagawa, Japan, holds an impressive portfolio of 31 patents. His innovative work primarily revolves around charging devices, power storage systems, and technologies aimed at enhancing electric vehicle efficiency. His contributions significantly impact the field of energy storage and management.
Latest Patents
Kumagai's latest patents include breakthroughs in charging technology. One notable invention is a charging device that features a charging voltage providing unit capable of delivering a maximum charging voltage for an electricity storage unit composed of multiple battery cells. This device operates under a specific equation that defines the maximum charging voltage based on the total battery voltage and the individual cell voltages. Additionally, he has developed a power storage device that organizes multiple modules with secondary batteries. This device includes mechanisms for controlling charging and discharging, utilizing a switch control unit to manage operation efficiently and maintain optimal performance.
Career Highlights
Eiji Kumagai has worked with prominent companies such as Sony Corporation and Murata Manufacturing Co., Ltd. Throughout his career, he has been crucial in creating technologies that support the advancement of electrical systems and battery technology. His innovative mindset and technical proficiency have propelled him to be a leading figure in his domain.
Collaborations
Kumagai has collaborated with esteemed professionals in the industry, including Kenji Nagashima and Naoyuki Sugeno. These partnerships have fostered a creative environment that enhances technological development and supports innovative solutions in the field of energy storage and charging devices.
Conclusion
Eiji Kumagai is a pioneering inventor whose work has transformed the landscape of charging and power storage technologies. With 31 patents to his name, his contributions continue to inspire advancements in the electric vehicle sector and beyond. His ongoing dedication to innovation and technology ensures that his influence will resonate in the industry for years to come.