This inventor holds 3 USPTO granted patents. Top assignee: Mitsubishi Denki Kabushiki Kaisha. Active years: 1996-2003.
Location History:
- Tokyo, JP (2002)
- Hyogo, JP (1996 - 2003)
Company Filing History:
Years Active: 1996-2003
Title: Innovations of Kei Maejima
Introduction
Kei Maejima is a notable inventor based in Hyogo, Japan. He has made significant contributions to the field of semiconductor memory technology. With a total of 3 patents to his name, Maejima continues to push the boundaries of innovation in his field.
Latest Patents
One of his latest patents is a non-volatile semiconductor memory device that conducts data write and erase operations based on a prescribed unit region. This invention divides a normal array for storing data into m sectors, each corresponding to a unit subjected to a single data write or erase operation. An extra memory array includes a plurality of extra sectors for data read operations, ensuring efficient data management. Another significant patent focuses on providing a semiconductor memory capable of executing high-speed read tests based on complex test patterns without increasing circuit area. This innovation involves a unique configuration of NMOS transistors connected to decision result lines, enhancing the performance of semiconductor memory devices.
Career Highlights
Kei Maejima is currently employed at Mitsubishi Electric Corporation, where he applies his expertise in semiconductor technology. His work has been instrumental in advancing the capabilities of memory devices, making them more efficient and reliable.
Collaborations
Throughout his career, Maejima has collaborated with esteemed colleagues such as Hiroaki Nakai and Kenji Noguchi. These partnerships have fostered a creative environment that encourages innovation and the development of cutting-edge technologies.
Conclusion
Kei Maejima's contributions to semiconductor memory technology exemplify the spirit of innovation. His patents reflect a deep understanding of the complexities involved in memory devices, and his work continues to influence the industry.