Norio Hattori

Title: Norio Hattori: Innovator in Semiconductor Memory Technology

Introduction

Norio Hattori is a prominent inventor based in Kanagawa, Japan, known for his significant contributions to semiconductor memory technology. With a total of seven patents to his name, Hattori has made remarkable advancements in the field, particularly in variable resistance random-access memory.

Latest Patents

One of Hattori's latest patents is a variable resistance random-access memory and method for write operation having an error bit recovering function. This invention provides a solution for suppressing performance degradation by recovering memory cells that fail. The design includes a memory array, a row selection circuit, a column selection circuit, a controller, an error checking and correcting (ECC) circuit, an error bit flag register, and an error bit address register. The memory array consists of multiple memory cells, while the column selection circuit features a sense amplifier and a write driver/read bias circuit. The error bit flag register indicates the presence or absence of an error bit during a write operation, and the controller is responsible for recovering the error bit when a predetermined event occurs.

Another notable patent is a semiconductor memory device capable of smoothing the number of cycles of programming and erasing between blocks. This device includes a memory cell array, an address translation table, an invalid block table, a free block table, and an erasing element. The controller manages the erasing process and updates the address translation table to ensure efficient operation.

Career Highlights

Norio Hattori is currently employed at Winbond Electronics Corporation, where he continues to innovate in the semiconductor field. His work has significantly impacted the efficiency and reliability of memory devices, making him a key figure in the industry.

Collaborations

Hattori has collaborated with notable colleagues, including He-Hsuan Chao and Ping-Kun Wang, contributing to various projects that enhance semiconductor technology.

Conclusion

Norio Hattori's contributions to semiconductor memory technology through his innovative patents have established him as a leading inventor in the field. His work continues to influence advancements in memory devices, showcasing the importance of innovation in technology.