Kuniaki Arai

Title: Kuniaki Arai: Innovator in Semiconductor Protection Devices

Introduction

Kuniaki Arai is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of semiconductor devices, particularly in the area of secondary cell protection. With a total of 7 patents to his name, Arai's work has had a considerable impact on the technology industry.

Latest Patents

One of Arai's latest patents is a protective semiconductor device for secondary cells. This device is designed to reliably detect disconnections in secondary cells. It includes cell-connecting terminals, a first resistance for voltage detection, and a comparator to assess whether the cell voltage is within a reference range. The device features a control circuit that manages the ON/OFF state of a switch element, allowing for effective disconnection testing. Another significant patent is a secondary cell protection circuit that safeguards multiple secondary cells connected in series. This circuit includes switching parts that operate in parallel with the cells and a charge controller that manages the switching based on cell voltage levels.

Career Highlights

Throughout his career, Kuniaki Arai has worked with prominent companies such as Ricoh Company, Ltd. and Ricoh Electronic Devices Co., Ltd. His experience in these organizations has allowed him to develop and refine his innovative ideas in semiconductor technology.

Collaborations

Arai has collaborated with notable colleagues, including Masashi Oshima and Junichi Kanno. These partnerships have contributed to the advancement of his projects and the successful development of his patents.

Conclusion

Kuniaki Arai is a distinguished inventor whose work in semiconductor protection devices has made a lasting impact on the industry. His innovative patents and collaborations reflect his commitment to advancing technology in this field.