Location History:
- Mie, JP (2006)
- Yokkaichi, JP (2010)
Company Filing History:
4 out of 2,114 
4 out of 6,181 
4 out of 10,273 
Years Active: 2006-2010
Title: Shuji Mayama: Innovator in Battery Technology
Introduction
Shuji Mayama is a notable inventor based in Mie, Japan. He has made significant contributions to the field of battery technology, holding a total of 4 patents. His work focuses on improving battery condition monitoring and enhancing charging circuits.
Latest Patents
One of his latest inventions is a battery condition monitor. The objective of this invention is to provide a device that reduces labor and equipment costs for parameter setting when evaluating a battery's condition. This monitor is designed to respond effectively to variations due to individual differences among vehicles of the same model. It measures a lower limit voltage value during engine startup, establishing a reference for evaluating the battery's condition based on its discharge characteristics.
Another significant patent is the charge pump circuit. This invention involves a constant current charging and discharging circuit that utilizes follower circuits to step up the voltage of a capacitor. The transistors in the follower circuits are alternately activated based on a clock signal, allowing for efficient current management during the charging and discharging process.
Career Highlights
Shuji Mayama has worked with reputable companies such as Autonetworks Technologies and Sumitomo Wiring Systems. His experience in these organizations has contributed to his expertise in battery technology and circuit design.
Collaborations
Some of his notable coworkers include Isao Isshiki and Takahiro Matsuura. Their collaboration has likely fostered innovation and development in their respective fields.
Conclusion
Shuji Mayama is a distinguished inventor whose work in battery technology has led to valuable patents that enhance the efficiency and reliability of battery systems. His contributions continue to impact the industry positively.