This inventor holds 2 USPTO granted patents and 1 published patent application. Top assignee: Kioxia Corporation. Active years: 2025.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2025
Title: Ryota Hirai: Innovator in Semiconductor Technology
Introduction
Ryota Hirai is a prominent inventor based in Chigasaki, Kanagawa, Japan. He has made significant contributions to the field of semiconductor technology, holding a total of 2 patents. His work focuses on enhancing the reliability and efficiency of semiconductor storage devices.
Latest Patents
Hirai's latest patents include innovative designs for semiconductor storage devices. The first patent describes a semiconductor storage device that improves reliability by incorporating a non-volatile memory with a block of memory cell transistors connected to a word line. This device features a controller that monitors the threshold voltage distribution width of the memory cell transistors after performing erasing and preliminary write operations. The controller classifies the transistors based on their threshold voltage distribution, ensuring optimal performance.
The second patent also pertains to a non-volatile memory, which includes a memory cell array with multiple memory cell transistors and word lines connected to their respective gates. This design features a VPGM monitor linked to the word lines and a sequencer that detects the voltage of a selected word line during data writing. The sequencer determines if the detected voltage has reached a predetermined value, enhancing the reliability of the memory cell array.
Career Highlights
Ryota Hirai is currently employed at Kioxia Corporation, a leading company in the semiconductor industry. His work at Kioxia has allowed him to focus on developing advanced storage solutions that meet the growing demands of technology.
Collaborations
Hirai collaborates with talented colleagues, including Daisuke Arizono and Yasuhiro Shiino. Their combined expertise contributes to the innovative projects at Kioxia Corporation.
Conclusion
Ryota Hirai is a key figure in the semiconductor industry, with a focus on improving storage device technology. His patents reflect his commitment to innovation and reliability in semiconductor solutions.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile