Company Filing History:
Years Active: 2017-2021
Title: Ryoichi Ehara: Innovator in Three-Dimensional Memory Devices
Introduction
Ryoichi Ehara is a prominent inventor based in Yokkaichi, Japan. He has made significant contributions to the field of memory devices, particularly in the development of three-dimensional memory technology. With a total of 3 patents to his name, his work has been influential in advancing memory storage solutions.
Latest Patents
Ehara's latest patents include a multi-tier three-dimensional memory device with dielectric support pillars and methods for making the same. This innovative memory array features multiple alternating stacks of insulating and electrically conductive layers that are vertically stacked. The memory stack structures, which include memory films and semiconductor channels, extend through these alternating stacks. The design incorporates dielectric support pillar structures that provide structural support during the replacement of sacrificial material layers with electrically conductive layers.
Another notable patent is for a three-dimensional memory device containing support pillars underneath a retro-stepped dielectric material. This device consists of an alternating stack of insulating and electrically conductive layers located over a substrate. The memory stack structures in this patent also extend through the memory array region, showcasing the versatility and complexity of his designs.
Career Highlights
Ryoichi Ehara is currently employed at Sandisk Technologies Inc., where he continues to push the boundaries of memory technology. His work has been pivotal in enhancing the efficiency and performance of memory devices, making significant strides in the industry.
Collaborations
Ehara has collaborated with notable colleagues, including Masanori Tsutsumi and Youko Furihata. These partnerships have fostered a creative environment that has led to innovative solutions in memory technology.
Conclusion
Ryoichi Ehara's contributions to the field of three-dimensional memory devices highlight his role as a leading inventor in this area. His patents reflect a commitment to innovation and excellence in memory technology.