Company Filing History:
2 out of 1,309 
2 out of 982 
Years Active: 2012
Title: Daichi Chiba: Innovator in Magnetic Domain Wall Technology
Introduction
Daichi Chiba is a prominent inventor based in Sendai, Japan. He has made significant contributions to the field of magnetic domain wall technology, holding 2 patents that showcase his innovative approach to magnetic memory and devices.
Latest Patents
One of his latest patents is titled "Current injection magnetic domain wall moving element." This invention provides a current injection-type magnetic domain wall-motion device that requires no external magnetic field for reversing the magnetization direction of a ferromagnetic body, while also ensuring low power consumption. The device includes a microjunction structure with two magnetic bodies having antiparallel magnetization directions and a third magnetic body sandwiched in between. The magnetization direction is controlled by applying a pulse current across junction interfaces, allowing the magnetic domain wall to move in the same or opposite direction to the current.
Another notable patent is "Nonvolatile solid state magnetic memory and recording method thereof." This invention describes a nonvolatile solid state magnetic memory with ultra-low power consumption. The memory utilizes a magnetic material whose magnetic anisotropy can be altered by changing the carrier concentration. The direction of the easy axis of magnetization is controlled by adjusting the carrier concentration, enabling efficient recording operations through the rotation or reversal of magnetization.
Career Highlights
Daichi Chiba has worked with esteemed organizations such as the Japan Science and Technology Agency and Tohoku University. His work in these institutions has allowed him to further his research and development in magnetic technologies.
Collaborations
Chiba has collaborated with notable colleagues, including Hideo Ohno and Fumihiro Matsukura. Their joint efforts have contributed to advancements in the field of magnetic domain wall technology.
Conclusion
Daichi Chiba's innovative work in magnetic domain wall technology and his contributions to nonvolatile solid state magnetic memory highlight his role as a leading inventor in this field. His patents reflect a commitment to advancing technology with low power consumption and efficient performance.
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