This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignee: Elpida Memory, Inc.. Active years: 2010-2012.
Company Filing History:
Years Active: 2010-2012
Title: Satoshi Katagiri: Innovator in Memory Device Technology
Introduction
Satoshi Katagiri is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of semiconductor memory technology, holding a total of 5 patents. His work focuses on enhancing memory devices, particularly in the areas of phase change memory and DRAM compatibility.
Latest Patents
One of Katagiri's latest patents is for a phase change memory device. This device consists of multiple memory cells that include phase change memory elements arranged at intersecting points between word lines and bit lines. The write circuit operates based on a write voltage source (Vwrite), controlled by various control signals from a control circuit. This innovative design allows for high write currents to be supplied to the memory elements, eliminating the need for a potential switch circuit and reducing the overall scale of the device.
Another notable patent is for a semiconductor memory device that features a DRAM-compatible addressing mode. This device synchronizes the reception of row and column addresses with an active command, while also receiving a page address during read or write commands. The configuration allows for compatibility with DRAM specifications, such as access cycles, without requiring an amplifier for each bit line, thus optimizing chip area.
Career Highlights
Satoshi Katagiri is currently employed at Elpida Memory, Inc., where he continues to innovate in the field of memory technology. His work has been instrumental in advancing the capabilities of semiconductor devices, making them more efficient and compact.
Collaborations
Throughout his career, Katagiri has collaborated with notable colleagues, including Kenji Mae and Yasuko Tonomura. These partnerships have contributed to the successful development of his patented technologies.
Conclusion
Satoshi Katagiri's contributions to memory device technology have established him as a key figure in the field. His innovative patents reflect a commitment to advancing semiconductor technology, making significant strides in efficiency and compatibility.