Masashi Matsumura

Title: The Innovations of Masashi Matsumura

Introduction

Masashi Matsumura is a notable inventor based in Hyogo, Japan. He has made significant contributions to the field of semiconductor technology, holding 2 patents that showcase his innovative spirit and technical expertise.

Latest Patents

One of his latest patents is for a "Clock synchronous memory embedded semiconductor integrated circuit device." This invention includes an SDRAM module that operates in synchronization with a clock signal. It features a logic circuit that transmits data with the SDRAM module for necessary processing. Additionally, it has a direct memory access circuit that takes in and transfers an externally applied signal in synchronization with the clock signal corresponding to the operation clock of the SDRAM module. A selector is included to choose between the output signal of the logic circuit and the output signal of the direct memory access circuit based on a test mode instructing signal for application to the SDRAM module. This design allows for testing of synchronous memory by enabling fast and direct access without the influence of signal skew.

Another significant patent is for a "Semiconductor memory device capable of block writing in large bus width." In this invention, columns included in a sub-block are divided into first and second groups. If a defective memory cell column is present in the first group, an address comparison circuit activates a signal to select a redundant memory cell column. A selection prohibiting signal reaches an 'L' level based on information programmed in a programming circuit, prohibiting the selection of a column in the first group while allowing normal selection operations in the second column group.

Career Highlights

Masashi Matsumura has worked with prominent companies in the technology sector, including Mitsubishi Denki Kabushiki Kaisha and Mitsubishi Electric Engineering Company, Limited. His experience in these organizations has contributed to his development as an inventor and innovator in semiconductor technology.

Collaborations

Throughout his career, Matsumura has collaborated with talented individuals such as Akira Yamazaki and Isamu Hayashi. These collaborations have likely enriched his work and led to advancements in his projects.

Conclusion

Masashi Matsumura's contributions to semiconductor technology through his patents reflect his innovative mindset and technical prowess. His work continues to influence the field and showcases the importance of creativity in technological advancements.