Norio Ootani

Title: Innovator of Nonvolatile Semiconductor Memory: Norio Ootani

Introduction: Norio Ootani is a distinguished inventor based in Yokkaishi, Japan. He has made significant contributions to the field of semiconductor memory technologies, with a notable portfolio that includes two patented innovations. His work focuses primarily on improving the functionality and reliability of nonvolatile memory devices.

Latest Patents: Ootani's latest patents demonstrate his expertise in NAND-type memory technologies. The first patent describes a "NAND type memory with dummy cells adjacent to select transistors being biased at different voltage during data erase." This innovative nonvolatile semiconductor memory device incorporates electrically rewritable nonvolatile memory cells connected in series, featuring a select gate transistor. A unique aspect of this design is the use of a dummy cell, located adjacent to the select gate transistor, which is utilized during data erasure while being subjected to a different bias voltage compared to the other memory cells.

His second patent, titled "Nonvolatile semiconductor memory device and manufacturing method therefor," outlines a comprehensive design for a semiconductor memory device that includes at least one MOS transistor in a peripheral circuit. It describes various components such as a semiconductor substrate, isolation insulating films, a floating gate, and self-aligned source and drain regions, highlighting the intricate architecture that enhances memory performance and efficiency.

Career Highlights: Norio Ootani is associated with Kabushiki Kaisha Toshiba, a prominent player in the electronics and semiconductor industry. His role at Toshiba has allowed him to be at the forefront of technological advancements in memory devices, contributing invaluable insights and innovative solutions to the sector.

Collaborations: Throughout his career, Ootani has collaborated with talented individuals in the field, including notable coworkers Hiroaki Hazama and Seiichi Mori. Together, they have brought forth advancements in semiconductor memory technology, showcasing the importance of teamwork in achieving breakthroughs.

Conclusion: Norio Ootani stands out as a key innovator in the realm of nonvolatile semiconductor memory. His patents not only signify his technical prowess but also reflect his commitment to enhancing data storage solutions. As the industry continues to evolve, Ootani's contributions will undeniably play a crucial role in shaping the future of memory technology.