Location History:
- Hiratsuka, JP (1991 - 1992)
- Odawara, JP (1992)
- Higashimurayama, JP (2001 - 2002)
Company Filing History:
Years Active: 1991-2002
Title: Tatsuya Sakamoto: Innovator in Semiconductor Technology
Introduction
Tatsuya Sakamoto is a prominent inventor based in Higashimurayama, Japan. He has made significant contributions to the field of semiconductor technology, particularly in dynamic random access memory (DRAM) systems. With a total of 6 patents to his name, Sakamoto's work has had a substantial impact on the efficiency and performance of memory devices.
Latest Patents
Sakamoto's latest patents focus on innovative designs for semiconductor memory devices. One of his notable inventions involves the use of switch MOSFETs interposed between a sense amplifier and complementary bit lines in a dynamic RAM. This design allows for improved signal voltage reading through the selection of word lines from multiple dynamic memory cells. The switch control signal of the MOSFETs is adjusted from a select level to a predetermined intermediate level, enabling the device to set sense nodes to a specific level based on the amplifying operations of the sense amplifier. The amplification signal generated is then transmitted through a column select circuit to input/output lines, enhancing the overall performance of the memory device.
Career Highlights
Tatsuya Sakamoto is currently employed at Hitachi, Ltd., where he continues to develop cutting-edge technologies in semiconductor memory. His work has been instrumental in advancing the capabilities of dynamic RAM systems, making them more efficient and reliable for various applications.
Collaborations
Sakamoto has collaborated with notable colleagues, including Osamu Nagashima and Riichiro Takemura. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas within the field of semiconductor technology.
Conclusion
Tatsuya Sakamoto's contributions to semiconductor technology, particularly in dynamic RAM systems, highlight his role as a leading inventor in the industry. His innovative patents and collaborations with esteemed colleagues continue to shape the future of memory devices.