Location History:
- Niigata-ken, JP (1999 - 2019)
- Miyagi-ken, JP (2024)
Company Filing History:
2 out of 44 
2 out of 571 
1 out of 4,048 Years Active: 1999-2024
Title: Seiichi Abiko: Innovator in Magnetic Core Technology
Introduction
Seiichi Abiko is a notable inventor based in Niigata-ken, Japan. He has made significant contributions to the field of magnetic materials, particularly in the development of powder magnetic cores. With a total of 5 patents to his name, Abiko's work has advanced the technology used in various electronic devices.
Latest Patents
One of his latest patents is focused on a powder magnetic core and the method for producing it. This invention features a powder magnetic core that contains a magnetic particle made from an Fe-based Cr-containing amorphous alloy combined with an organic binding substance. The core is designed to exhibit low loss and high initial permeability. The depth profile of the composition from the surface of the magnetic particle reveals several characteristics. Firstly, an oxygen-containing region with an O/Fe ratio of 0.1 or more is defined, extending to a depth of 35 nm or less from the surface. Secondly, a carbon-containing region with a C/O ratio of 1 or more is also defined, with a depth of 5 nm or less from the surface. Lastly, the oxygen-containing region contains a Cr-concentrated portion with a bulk Cr ratio of more than 1.
Another significant patent involves a powder core that includes both a powder of a crystalline magnetic material and a powder of an amorphous magnetic material. The median diameter of the amorphous magnetic material is 15 µm or less, and it satisfies the expression: 1 ≤ D50A/D50C ≤ 3.5, where D50C is the median diameter of the crystalline magnetic material.
Career Highlights
Throughout his career, Seiichi Abiko has worked with prominent companies such as Alps Green Devices Co., Ltd. and Alps Alpine Co., Ltd. His expertise in magnetic materials has been instrumental in the development of innovative products in the electronics sector.
Collaborations
Abiko has collaborated with notable coworkers, including Hisato Koshiba and Takao Mizushima. Their combined efforts have contributed to advancements in magnetic core technology.
Conclusion
Seiichi Abiko's contributions to the field of magnetic materials and his innovative patents have significantly impacted the electronics industry. His work continues to influence the development of efficient and effective magnetic cores for various applications.