Toshifumi Ueda

Title: Innovations of Toshifumi Ueda

Introduction

Toshifumi Ueda is a notable inventor based in Toyohashi, Japan. He has made significant contributions to the field of battery technology, holding a total of 5 patents. His work focuses on improving the efficiency and functionality of rechargeable batteries, particularly for automatic guided vehicles.

Latest Patents

One of Ueda's latest patents is a method of controlling the charge and discharge of a secondary battery for automatic guided vehicles. This innovative method aims to accurately determine the timing for refresh charge and discharge, thereby minimizing their frequency. The process involves a first discharge step where the secondary battery powers the vehicle and discharges a predetermined amount of electricity. Following this, a voltage measurement step assesses the discharge end voltage upon completion of the first discharge. The method then includes a charge step that consists of two phases: an incomplete charge at a first current value if the discharge end voltage is above a preset minimum, and a complete discharge followed by a full charge at a lower current value if the voltage is at or below the minimum.

Another significant invention by Ueda is an alkaline rechargeable battery. This battery features an electrode plate group with positive and negative plates stacked alternately, separated by separators. The design ensures that the volume of the separators before the initial charge and discharge constitutes 30 to 60% of the total volume of the electrode plate group.

Career Highlights

Throughout his career, Toshifumi Ueda has worked with various companies, including Panasonic Ev Energy Co., Ltd. His experience in the industry has allowed him to develop innovative solutions that address the challenges faced in battery technology.

Collaborations

Ueda has collaborated with notable colleagues such as Nobuyasu Morishita and Noriyuki Fujioka. Their combined expertise has contributed to the advancement of battery technologies and innovations.

Conclusion

Toshifumi Ueda's contributions to battery technology through his patents and collaborations highlight his role as a significant inventor in the field. His innovative methods and designs continue to influence the development of efficient energy storage solutions.