Mikio Oguma

Title: Mikio Oguma: Innovator in Battery Technology

Introduction

Mikio Oguma is a notable inventor based in Kumagaya, Japan. He has made significant contributions to the field of battery technology, holding two patents that showcase his innovative approach to enhancing battery safety and efficiency.

Latest Patents

Oguma's latest patents include a sealed cell and method of manufacture thereof. This invention features a flange of a cap case with protrusions that project upward before being swaged. When the flange is swaged along the upper surface of the cap, the protrusions extend toward the center of the cap. The cap case is welded to the cap using friction stir welding at a central portion of the protrusion. The design of the protrusions is approximately in a letter-T shape, which is symmetric on both sides. The connecting portion's width in the cap circumferential direction is smaller than the maximum width, reducing rigidity against deformation.

Another significant patent is a secondary battery module that includes a connection break-off mechanism for abnormal battery operations. This invention aims to enhance safety during abnormal battery conditions by utilizing a film-type secondary battery. The module consists of eight single batteries arranged in a layer-stacked configuration, each using a laminate film as its container. A conducting plate faces one of the single batteries, and a pushing member is positioned between the single battery and the conducting plate. The design allows for the projected portions of the pushing member to pass through through-holes in the conducting plate, breaking off the coupling when any single battery expands during abnormal operations.

Career Highlights

Mikio Oguma has worked with prominent companies such as Hitachi Automotive Systems, Ltd. and Hitachi Vehicle Energy, Ltd. His experience in these organizations has contributed to his expertise in battery technology and innovation.

Collaborations

Oguma has collaborated with notable coworkers, including Katsunori Suzuki and Sho Matsumoto. Their combined efforts have likely fostered advancements in the projects they have undertaken together.

Conclusion

Mikio Oguma's contributions to battery technology through his innovative patents reflect his commitment to enhancing safety and efficiency in energy storage solutions. His work continues to influence the field and inspire future innovations.