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Title: Masayoshi Toyota: Innovator in Battery Technology
Introduction
Masayoshi Toyota is a prominent inventor based in Toyohashi, Japan. He has made significant contributions to the field of battery technology, holding a total of 3 patents. His work focuses on enhancing the efficiency and functionality of secondary batteries, which are crucial for various applications, including electric vehicles.
Latest Patents
One of his latest patents is a charging control method for secondary batteries and battery chargers. This innovative method allows for the auxiliary charging of a secondary battery to a desired state of charge (SOC) with high accuracy. The charger includes a charge termination condition storing unit that maintains a relationship between the open circuit voltages (OCV) of multiple secondary batteries and the change in terminal voltage until the desired SOC is achieved. The target terminal voltage during auxiliary charging is calculated by adding the change in terminal voltage to the measured OCV. The system compares the terminal voltage of the secondary battery with the target voltage and terminates the auxiliary charge once the target is reached.
Another significant patent involves a method of detecting and resolving memory effects in batteries. This method enables the detection of memory effects with high precision, even while the vehicle is in motion. It involves monitoring the current in a secondary battery, calculating variations in residual battery capacity, and assessing the internal resistance based on temperature and SOC. If the calculated ratio of voltage variation to residual capacity exceeds a predetermined threshold, the battery is identified as having a memory effect, allowing for appropriate corrective measures.
Career Highlights
Masayoshi Toyota has worked with notable companies, including Matsushita Electric Industrial Co., Ltd. His experience in the industry has allowed him to develop innovative solutions that address critical challenges in battery technology.
Collaborations
He has collaborated with esteemed colleagues such as Tadao Kimura and Norito Yamabe. Their combined expertise has contributed to advancements in the field of battery technology.
Conclusion
Masayoshi Toyota's contributions to battery technology through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the efficiency and performance of secondary batteries, paving the way for future innovations in the industry.