Location History:
- Kamakura, JP (2014)
- Kanagawa, JP (2016)
Company Filing History:
Years Active: 2014-2016
Title: Rieko Funatsuki: Innovator in Semiconductor Technology
Introduction
Rieko Funatsuki is a prominent inventor based in Kanagawa, Japan. She has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. Her work focuses on nonvolatile memory devices, which are crucial for modern electronic applications.
Latest Patents
One of her latest patents is for a nonvolatile semiconductor memory device. This device includes a memory cell array with nonvolatile memory cells that can be programmed to store multiple values by setting various threshold values. The control circuit performs a writing operation that includes a pre-programming verification operation to determine the threshold level of a memory cell in an erasure state. The program operation selects a program voltage from multiple options based on the verification results.
Another significant patent is for a semiconductor storage device. This memory includes memory cells and a sense amplifier that transmits voltage according to the current flowing in one of the memory cells. The write sequence involves repeating write loops, which include a write stage and a verify read stage. The sense amplifier adjusts the discharge period from the sense node based on the logic of data detected during the verify read stage.
Career Highlights
Rieko Funatsuki is currently employed at Kabushiki Kaisha Toshiba, a leading company in the technology sector. Her innovative work has positioned her as a key figure in the development of advanced semiconductor solutions.
Collaborations
She collaborates with notable coworkers, including Osamu Nagao and Takuya Futatsuyama, who contribute to her projects and enhance the research environment.
Conclusion
Rieko Funatsuki's contributions to semiconductor technology through her patents and collaborations highlight her role as an influential inventor in the industry. Her work continues to impact the development of nonvolatile memory devices, showcasing her dedication to innovation.