Chikara Yokoyama

Title: Chikara Yokoyama: Innovator in Memory Control Technology

Introduction

Chikara Yokoyama is a notable inventor based in Hyogo, Japan. He has made significant contributions to the field of memory control technology, holding 2 patents that showcase his innovative approach to reducing power consumption in memory devices.

Latest Patents

One of his latest patents is a "Backup memory control unit with reduced current consumption having normal self-refresh and unsettled modes of operation." This invention allows a backup memory control unit to minimize current consumption when the memory (SDRAM) is inactive. By providing an unsettled mode where no power is supplied to the memory, it effectively halts the power supply from a backup source, thereby limiting the increase in current consumption. The functions of this device are executed by a hardware circuit without the need for a backup microcomputer.

Another significant patent is the "Data backup device and step-up/step-down power supply." In this invention, when a power supply detection unit identifies an OFF command from a battery, the DRAM transitions to a self-refresh mode. Subsequently, power is supplied from a backup power source to the DRAM, ensuring data integrity during power interruptions.

Career Highlights

Chikara Yokoyama is currently employed at Mitsubishi Electric Corporation, where he continues to develop innovative solutions in memory technology. His work has had a profound impact on the efficiency and reliability of memory devices.

Collaborations

He has collaborated with notable colleagues such as Kyoji Higasa and Yuji Funaba, contributing to advancements in their respective fields.

Conclusion

Chikara Yokoyama's contributions to memory control technology exemplify his commitment to innovation and efficiency. His patents reflect a deep understanding of the challenges in memory management and offer practical solutions that benefit the industry.