Nidec Assigned Two Patents

Disk drive housing
Nidec Corporation, Kyoto, Japan, has been assigned a patent (10,410,682) developed by Ino, Yasutaka, and Tsujita,Toshiya, Kyoto, Japan, for a “disk drive housing.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A disk drive housing includes an accommodation unit in which a disk and a motor are accommodated, the disk rotating about a center axis extending vertically, the motor rotating the disk, and a non-piercing first screw hole including a die-cast metal in which an upper surface is opened, the non-piercing first screw hole extending from a first end surface toward a second end surface. The first screw hole includes a first region disposed at a leading end of an inner surface of the first screw hole, the first region including a first portion of the die-cast metal member covered with a chill layer, and a second region in which a screw is disposed on an inner circumferential surface of the first screw hole, the second region including a second portion of the die-cast metal member that is exposed.”

The patent application was filed on December 7, 2018 (16/212,748).

Base plate, hard disk drive, and method of manufacturing base plate
Nidec Corporation, Kyoto, Japan, has been assigned a patent (10,407,775) developed by Sakurada, Kunio, and Yoneda, Tomohiro, Kyoto, Japan, for “base plate, hard disk drive, and method of manufacturing base plate.“

The abstract of the patent published by the U.S. Patent and Trademark Office states: ”A base plate is arranged to define a portion of a housing of a hard disk drive, and includes a base body defined by casting, and an electrodeposition coating film arranged to cover a surface of the base body. The surface of the base body includes a coated surface covered with the electrodeposition coating film, and a flat worked surface exposed from the electrodeposition coating film. The worked surface may include a gate position to which a gate has been connected at the time of the casting. At least a portion of the worked surface is covered with an impregnant.”

The patent application was filed on January 25, 2018 (15/879,473).