Yoshiaki Machiyama

Title: Yoshiaki Machiyama: Innovator in Battery Technology

Introduction

Yoshiaki Machiyama is a notable inventor based in Fukaya, Japan. He has made significant contributions to the field of battery technology, particularly in the development of methods and apparatuses for determining the state of lead-acid batteries. With a total of 3 patents to his name, Machiyama's work is instrumental in enhancing the reliability and efficiency of automotive battery systems.

Latest Patents

One of Machiyama's latest patents is a battery state determining apparatus. This innovative device accurately assesses the state of a lead battery in an automotive vehicle. It calculates a corrected engine starting voltage based on the open-circuit voltage measured at the time of engine start, taking into account the vehicle's temperature. The apparatus also determines a battery determination voltage that indicates the battery's condition when its internal resistance reaches a specific threshold. By comparing these voltages, the apparatus effectively judges the battery's state.

Another significant patent is the battery state judging method and apparatus. This method allows for the assessment of a lead-acid battery's state without the need to measure currents. It involves obtaining the DC internal resistance of a new, fully charged battery and calculating the load at the engine starting time. By comparing the internal resistance of a loaded battery in a deteriorated state to that of a new battery, the method provides a reliable judgment of the battery's condition.

Career Highlights

Yoshiaki Machiyama is currently employed at Shin-Kobe Electric Machinery Co., Ltd. His work at this company has allowed him to focus on advancing battery technology, contributing to the development of innovative solutions that enhance battery performance and longevity.

Collaborations

Throughout his career, Machiyama has collaborated with notable colleagues, including Keizo Yamada and Yoshifumi Yamada. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Yoshiaki Machiyama's contributions to battery technology are significant and impactful. His innovative patents and collaborative efforts continue to advance the field, ensuring that automotive batteries are more reliable and efficient. His work exemplifies the importance of innovation in enhancing technology for everyday use.