Hitachi Maxell, Limited

Masatoshi Hashimoto

Norio Ohta

Hideo Fujiwara

Katsusuke Shimazaki

Eiji Koyama

Masafumi Yoshihiro

Yukinori Yamada

Satoru Ohnuki

Keiichi Tanii

Hiroyuki Hirata

Yoshinori Shirai

Kyohei Takeuchi

Hitoshi Furusho

Masahiro Suzuki

Takahiro Shimada

Haruo Arai

The battery unit () includes a flat battery () having a positive electrode can () and a negative electrode can () and a circuit substrate () provided on one of an upper surface and a bottom surface of the flat battery (). Circuit components () are mounted at the circuit substrate (). A battery side negative electrode terminal () and a battery side positive electrode terminal () electrically connected to the flat battery () are provided on a surface of the flat battery () provided with the circuit substrate (). Substrate side terminals () electrically connected to the battery side negative electrode terminal () and the battery side positive electrode terminal () are formed at a side surface of the circuit substrate ().

Battery unit

A battery unit provided with a flat battery and a substrate having a circuit formed thereon is provided in a compact form as a whole. The battery unit () includes a flat battery () in a flat shape having an upper surface and a bottom surface and a substrate () fixed to one surface of the flat battery (). A circuit component () is mounted on a surface of the substrate () on a side of the flat battery (), and a positive electrode terminal () (charging terminal) electrically connected to a positive electrode side of the flat battery () and a negative electrode terminal () (GND terminal) electrically connected to a negative electrode side of the flat battery () are formed on a surface of the substrate () on the opposite side to the flat battery ().

Battery unit and electrical device

To implement the alignment of lenses with a simple configuration or by a simple method. A lens unit includes a plurality of lenses each including a lens portion and a flange portion surrounding the lens portion, and a tube portion that holds the plurality of lenses successively arranged along an optical axis. The holder body includes first and second receive portions successively formed along the optical axis. The first receive portion holds the lenses by pressing the side of the flange portion that extends along the optical axis. The second receive portion receives the lens such that the lens can be moved in a direction crossing the optical axis.

Lens unit, camera module and manufacturing method of lens unit

In a lens device, plastic lenses having circular outer periphery are placed in a plastic lens-barrel having an octagonal or more complex polygonal inner surface in such a way that the outer peripheral surfaces of the lenses are press contacted to the inner surface of the polygonal shape. This lens device has press contact portions that are pressed by the lens outer peripheral surface and the lens-barrel inner surface in the vicinity and in both sides of gate traces where optical axis displacement is large so as to suppress the displacement of the gate trace by the press contact portions.

Lens device

Disclosed is a magneto-optical recording medium which comprises a transparent substrate and, provided on the substrate, a magneto-optical recording film comprising a perpendicular magnetic film based on rare earth metal-transition metal and an auxiliary magnetic film having spontaneous magnetization which exerts, between itself and the magneto-optical recording film, an exchange coupling force on each other and in which the auxiliary magnetic film used is a magnetic film which readily rotates its magnetization direction toward the external magnetic field in the neighborhood of the Curie temperature of the magneto-optical recording film and has a squareness ratio of not more than 1 in the neighborhood of the Curie temperature, and a process for producing the magneto-optical recording medium.

Magneto-optical recording medium and process for producing the same

Disclosed is a magneto-optical recording medium which comprises a transparent substrate and, provided on the substrate, a magneto-optical recording film comprising a perpendicular magnetic film based on rare earth metal-transition metal and an auxiliary magnetic film having spontaneous magnetization which exerts, between itself and the magneto-optical recording film, an exchange coupling force and wherein the auxiliary magnetic film is a magnetic film which readily rotates its magnetization direction toward the external magnetic field in the neighborhood of the Curie temperature of the magneto-optical recording film and has a squareness ratio of not more than 1 in the neighborhood of the Curie temperature. Also disclosed is a process for producing the magneto-optical recording medium.

Growing community of inventors

Ibaraki, Japan

Masatoshi Hashimoto