Location History:
- Hitachi, JP (2009 - 2017)
- Tokyo, JP (2016 - 2020)
Company Filing History:
16 out of 69 
11 out of 2,028 
10 out of 42,508 
Years Active: 2009-2020
Title: Innovations by Youhei Kawahara: A Pioneer in Battery Technology
Introduction: Youhei Kawahara is an innovative inventor based in Hitachi, Japan, known for his significant contributions to battery technology. With an impressive portfolio of 33 patents, Kawahara has established himself as a notable figure in the field of energy storage systems. His inventions focus on enhancing battery performance and efficiency, poised to facilitate advancements in various electronic devices and electric vehicles.
Latest Patents: Kawahara's recent patents showcase the depth of his expertise in battery management. One of his latest inventions, the battery state detection device, features a first permissible current calculating unit designed to assess a battery's state based on detected voltage. Additionally, it includes a second permissible current calculating unit that performs calculations independent of the battery's voltage. A correction unit compares the two permissible currents and applies a predetermined correction process derived from this comparison. This innovative design enables accurate determination of a battery's permissible current corresponding to its state.
Career Highlights: Throughout his career, Kawahara has made significant contributions at prominent companies such as Hitachi Vehicle Energy, Ltd. and Hitachi Automotive Systems, Ltd. His work at these organizations has played a crucial role in advancing battery technologies that meet modern energy demands.
Collaborations: Kawahara has collaborated with esteemed colleagues in his field, including Akihiko Emori and Akihiko Kudo. These partnerships have fostered a collaborative spirit that enhances the innovation process, contributing to the development of cutting-edge technologies in battery management systems.
Conclusion: Youhei Kawahara's track record of innovations in battery technology highlights his commitment to improving energy systems for the future. His patents and collaborative efforts not only underscore his ingenious contributions but also pave the way for more efficient and sustainable energy solutions in an increasingly electrified world.