This inventor holds 6 USPTO granted patents and 1 published patent application and 3 EPO patents. Top assignees: Kabushiki Kaisha Toshiba, Toshiba Infrastructure Systems & Solutions Corporation. Active years: 1996-2025.
Company Filing History:
6 out of 53,240 
3 out of 283 
Years Active: 1996-2025
Title: Keizo Hagiwara: Innovator in Storage Battery Technology
Introduction
Keizo Hagiwara is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of storage battery technology, holding a total of 6 patents. His innovative designs and solutions have paved the way for advancements in energy storage systems.
Latest Patents
One of Hagiwara's latest patents is a storage battery device that includes a housing, battery packs, and a heat detection member with a linear structure. This device is designed to accommodate battery packs within the housing, allowing them to be electrically connected to each other. The heat detection member features a heat detection function and continuously extends while maintaining thermal contact with components located near the bottom surfaces of the battery packs. Another notable patent is the battery module, which further enhances the efficiency and safety of energy storage systems.
Career Highlights
Throughout his career, Hagiwara has worked with notable companies such as Kabushiki Kaisha Toshiba and Toshiba Infrastructure Systems & Solutions Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas in the field of storage batteries.
Collaborations
Hagiwara has collaborated with several talented individuals in his field, including Toshiharu Obu and Nobumitsu Tada. These partnerships have contributed to the successful development of his patented technologies.
Conclusion
Keizo Hagiwara's contributions to storage battery technology demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of energy storage systems and their potential to impact the future of technology.