Naoki Ookuma

Title: Naoki Ookuma: Innovator in Non-Volatile Memory Technology

Introduction

Naoki Ookuma is a prominent inventor based in Kanagawa, Japan. He has made significant contributions to the field of non-volatile memory technology, holding a total of 9 patents. His innovative work has paved the way for advancements in memory devices, particularly in NAND flash memory.

Latest Patents

One of Ookuma's latest patents is titled "Word line architecture for three dimensional NAND flash memory." This invention describes a non-volatile memory apparatus that includes a substrate with a major surface extending longitudinally. The design features a stack of first and second sets of word lines and insulating layers that alternate vertically, defining a device region. The architecture allows for efficient word line contacts and stepped contact regions, enhancing the performance of NAND flash memory.

Another notable patent is "Memory plane structure for ultra-low read latency applications in non-volatile memories." This invention comprises a memory cell region with multiple co-planar memory cell planes arranged parallel to a semiconductor substrate. Each memory cell plane includes sub-planes and sense amplifier regions, optimizing the read latency and overall efficiency of non-volatile memory devices.

Career Highlights

Naoki Ookuma has worked with leading companies in the technology sector, including SanDisk Technologies Inc. and Renesas Electronics Corporation. His experience in these organizations has contributed to his expertise in memory technology and innovation.

Collaborations

Throughout his career, Ookuma has collaborated with notable professionals in the field, including Takuya Ariki and Toru Miwa. These collaborations have further enriched his work and led to significant advancements in non-volatile memory technologies.

Conclusion

Naoki Ookuma's contributions to non-volatile memory technology are noteworthy, with a total of 9 patents that reflect his innovative spirit. His work continues to influence the development of advanced memory devices, showcasing the importance of innovation in technology.