Location History:
- Aichi, JP (2003)
- Toyota, JP (2000 - 2008)
Company Filing History:
4 out of 36,771 
1 out of 1,600 
1 out of 832,912 Years Active: 2000-2008
Title: Innovations by Yoshiyuki Nakayama
Introduction
Yoshiyuki Nakayama is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of battery technology, holding a total of 5 patents. His work focuses on enhancing the efficiency and accuracy of battery state-of-charge estimation.
Latest Patents
One of his latest patents is a battery state-of-charge estimator. This invention allows a battery ECU to estimate the state of charge (SOC) by integrating the battery current, voltage, and temperature measurements. The system is designed to handle fluctuations in charging and discharging currents effectively. Another significant patent is a state-of-charge detector, program, method, and charge-discharge control device that utilizes the rate of change of internal resistance. This device calculates the internal resistance of a secondary battery and determines its state of charge based on the rate of change in internal resistance.
Career Highlights
Yoshiyuki Nakayama has worked with Toyota Motor Corporation, where he has contributed to various innovative projects. His expertise in battery technology has positioned him as a key figure in the development of advanced battery management systems.
Collaborations
He has collaborated with notable coworkers such as Kazuo Tojima and Yoshiaki Kikuchi, contributing to the advancement of battery technologies.
Conclusion
Yoshiyuki Nakayama's contributions to battery technology through his patents and collaborations highlight his role as an influential inventor in the field. His work continues to impact the efficiency and reliability of battery systems.