Toshitaka Yamamoto

Title: The Innovations of Toshitaka Yamamoto

Introduction

Toshitaka Yamamoto is a notable inventor based in Hitachi, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 4 patents. His work focuses on improving the efficiency and cost-effectiveness of microcomputer systems.

Latest Patents

One of his latest patents is a fabrication method of semiconductor devices. This invention provides a technology capable of shortening the turnaround time (TAT) of a microcomputer with a nonvolatile memory built therein, while also achieving a reduction in cost. Flash ROMs, which comprise memory cells substantially identical in structure to those of flash memory, are formed in their corresponding chips lying in a wafer. Subsequently, memory information is written into each of the memory cells of the flash ROM during a probe test process. After this, the memory information written into the memory cell is made unreprogrammable, thereby disabling the rewriting of post-shipment memory information. This innovation allows for a significant reduction in TAT compared to a mask ROM built-in microcomputer, while also lowering management and fabrication costs.

Career Highlights

Toshitaka Yamamoto has worked with prominent companies in the technology sector, including Hitachi, Ltd. and Renesas Technology Corporation. His experience in these organizations has contributed to his expertise in semiconductor fabrication and microcomputer technology.

Collaborations

Throughout his career, Yamamoto has collaborated with notable colleagues such as Shouji Satou and Masahiro Ueno. These partnerships have likely enhanced his innovative capabilities and contributed to the development of his patents.

Conclusion

Toshitaka Yamamoto's contributions to semiconductor technology and his innovative patents demonstrate his significant impact on the field. His work continues to influence advancements in microcomputer systems, showcasing the importance of innovation in technology.