Location History:
- Hyogo, JP (2018)
- Osaka, JP (2013 - 2022)
Company Filing History:
Years Active: 2013-2022
Title: Hisashi Kameyama: Innovator in Battery Protection Circuits
Introduction
Hisashi Kameyama is a notable inventor based in Osaka, Japan. He has made significant contributions to the field of electrical engineering, particularly in the development of protection circuits for batteries and power supply devices. With a total of 4 patents to his name, Kameyama's work has had a substantial impact on the industry.
Latest Patents
Kameyama's latest patents include a protection circuit for a battery and a power supply device equipped with this protection circuit. The protection circuit features a discharge FET, a control circuit, and two small-signal FETs. This innovative design allows the discharge FET to interrupt electric current effectively. The control circuit plays a crucial role in switching the discharge FET on or off, ensuring the safety and efficiency of battery operations.
The power supply device incorporates a spike absorption circuit that mitigates the risk of avalanche breakage in a current shutdown switch. This device is designed to handle kickback voltage that may occur when load current is cut off. The integration of a protection switch and a delay circuit enhances the reliability of the power supply device, making it a valuable advancement in electrical engineering.
Career Highlights
Throughout his career, Kameyama has worked with prominent companies such as Sanyo Electric Co., Ltd. and Panasonic Corporation. His experience in these organizations has allowed him to refine his skills and contribute to groundbreaking innovations in battery technology.
Collaborations
Kameyama has collaborated with esteemed colleagues, including Masato Nakayama and Toshiyuki Nakatsuji. These partnerships have fostered a creative environment that has led to the development of advanced technologies in the field.
Conclusion
Hisashi Kameyama's contributions to battery protection circuits and power supply devices highlight his innovative spirit and technical expertise. His work continues to influence the industry, paving the way for future advancements in electrical engineering.