Fumiki Takesue

Title: Fumiki Takesue: Innovator in Battery Technology

Introduction

Fumiki Takesue is a notable inventor based in Sumoto, Japan. He has made significant contributions to battery technology, holding two patents that showcase his innovative approach to enhancing battery performance and safety.

Latest Patents

One of his latest patents is a "Battery with Rust Preventive Structure." This invention features a battery cell with a side-wall and an outer peripheral region of the safety valve covered with heat-shrink tubing. A sealing plate is attached in a moisture-tight manner to the heat-shrink tubing on the safety valve end via a pressure separating adhesive layer. This adhesive seals the region between a lead-tab connected to the battery terminal and the sealing plate, effectively preventing rust and enhancing durability.

Another significant patent is the "Apparatus to Prevent Complete Battery Discharge." This device compares the battery voltage with a reference voltage to prevent complete discharge when the detected battery voltage falls below the reference. It activates a switch to open the electrical connection between the battery and the load. The system compensates for dynamic characteristics by detecting battery current and adjusting the reference voltage accordingly. Additionally, battery temperature influences the reference voltage, and a timer may be included to ensure the switch only opens after a predetermined period of low voltage.

Career Highlights

Fumiki Takesue has worked with prominent companies such as Sanyo Electric Co., Ltd. and Honda Giken Kogyo Kabushiki Kaisha. His experience in these organizations has contributed to his expertise in battery technology and innovation.

Collaborations

He has collaborated with notable coworkers, including Kazuhiro Kitaoka and Akihiro Furuse, who have also contributed to advancements in the field of battery technology.

Conclusion

Fumiki Takesue's innovative patents and career in battery technology highlight his significant contributions to the industry. His work continues to influence the development of safer and more efficient battery systems.