Kyocera Corporation

Masamichi Shingu

Hitomi Ochiai

Yuki Kitagawa

Hideki Mori

Mitsuya Takayama

Kazuo Watada

Kunihide Shikata

Takehisa Higa

Satoshi Kiyota

The light shielding member of the present disclosure includes an aluminum oxide ceramics including an oxide of titanium whose composition formula is shown as TiO(1≤x<2), and a total content of Fe, Ni, Co, Mn and Cr is 260 mass ppm or less.

Light shielding member

A core component is made of a sintered body of an inorganic powder, in which the core component includes a columnar winding portion and a flange portion integrally formed with the columnar winding portion at both axial ends of the winding portion, and a gap C, represented by the following Formula, between adjacent voids in the surface layer portion of the columnar winding portion, is 6 to 12 &#x3bc;m.&#x2003;&#x2003;Formula:where, L is the average value of the distance between the centers of gravity between adjacent voids, and R is the average value of equivalent circle diameters of the voids.

Core component, method of manufacturing same, and inductor

A core component is made of a sintered body of an inorganic powder, in which the core component includes a columnar winding portion around which a conductive wire is wound, the columnar winding portion having a first axial end and a second axial end and a flange portion integrally formed with the winding portion at both axial ends of the winding portion, in which the columnar winding portion includes, in a cross section orthogonal to an axial center, a first region having a curved outer peripheral surface having a first radius of curvature and a second region having a curved surface having a second radius of curvature, the second radius of curvature is smaller than the first radius of curvature and the first region and the second region are connected with each other via a first projection.

A core component is made of a sintered body of an inorganic powder, in which the core component includes a columnar winding portion and a flange portion integrally formed with the columnar winding portion at both axial ends of the columnar winding portion, in which when observed in a cross section perpendicular to an axial direction, a surface layer portion of the columnar winding portion and a surface layer portion of the flange portion have a void occupancy area smaller than a void occupancy area of an inside of the columnar winding portion and of an inside of the flange portion, respectively.

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Shiga, Japan

Masamichi Shingu