Hiroyuki Tezuka

Title: Innovations of Hiroyuki Tezuka

Introduction

Hiroyuki Tezuka is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of memory devices and systems. With a total of 6 patents to his name, Tezuka's work has had a substantial impact on technology.

Latest Patents

Tezuka's latest patents include advancements in resistance change memory, memory devices, and memory systems. One of his notable inventions focuses on reducing the leakage current of a MOS transistor during the writing process. This resistance change memory comprises a memory cell, a write drive unit, a write control unit, and a well potential adjustment unit. The memory cell features a resistance change element, while the write drive unit applies a write voltage to facilitate data writing. The write control unit generates a write control signal to manage the writing process, and the well potential adjustment unit modifies the well potential of the region housing the write drive unit based on the write voltage during writing.

Another significant patent is a storage device with a counter. This invention allows for flexible setting of a standard potential used for reading, depending on the state of the storage device. It includes a data memory cell group for data storage and a reference memory cell group that holds multiple reference potentials. A standard potential generating section selects a specific number of reference potentials from the reference memory cell group to create the standard potential. Additionally, a reference potential selection control section manages the selection process according to predetermined conditions. A sense amplifier is employed to amplify data read from the data memory cell group using the standard potential as a reference.

Career Highlights

Tezuka is currently employed at Sony Semiconductor Solutions Corporation, where he continues to innovate in the field of semiconductor technology. His work has been instrumental in advancing memory technology, making it more efficient and reliable.

Collaborations

Tezuka has collaborated with notable colleagues, including Masami Kuroda and Haruko Takahashi. Their combined expertise has contributed to the success of various projects within the company.

Conclusion

Hiroyuki Tezuka's contributions to memory technology through his patents and work at Sony Semiconductor Solutions Corporation highlight his role as a leading inventor in the field. His innovations continue to shape the future of memory devices and systems.