Company Filing History:
4 out of 69 
4 out of 2,028 
1 out of 73 Years Active: 2011-2023
Title: Innovator Kouichi Kajiwara: Advancing Battery Technology
Introduction: Kouichi Kajiwara, based in Hitachinaka, Japan, is a prominent inventor with an impressive portfolio of 9 patents. His work primarily focuses on innovations in battery technology, showcasing his expertise and commitment to advancing energy solutions.
Latest Patents: Kajiwara's recent innovations include two groundbreaking patents. The first is a Rectangular Secondary Battery, designed to enhance the seal performance of a gasket with a simpler structure, all while maintaining the integrity of the terminal shaft. This invention incorporates a cell can housing a winding group and an opening portion covered by a lid with a positive electrode terminal. The unique gasket design allows for an effective interposition between the lid and the terminal, optimizing performance.
The second notable patent is a Prismatic Secondary Battery, which features a battery case in a prismatic shape and a cover that securely seals the opening. This design includes a convex part that projects inward, creating a robust seal along the side walls of the battery case. Kajiwara’s meticulous attention to the cover thickness ensures that the battery is not only efficient but also reliable in various applications.
Career Highlights: Throughout his career, Kouichi Kajiwara has made significant contributions to the field of battery technology while working with major companies like Hitachi Vehicle Energy and Hitachi Automotive Systems. These roles provided him with the platform to innovate and push the boundaries of existing technology.
Collaborations: Kajiwara has collaborated with esteemed colleagues such as Kinya Aota and Fujio Hirano, collectively driving the progression of advancements in energy storage systems. Their collaborative efforts have further enriched Kajiwara’s inventiveness and technological foresight.
Conclusion: Kouichi Kajiwara stands out as a key figure in the battery technology landscape. His latest patents not only demonstrate his innovative spirit but also his commitment to enhancing energy solutions. With a proven track record at industry-leading companies and valuable collaborations, Kajiwara continues to inspire future generations of inventors and contribute significantly to technological advancements.