Nidec Corporation is a Japanese manufacturer of electric motors. Their products are found in hard-disk drives, electric appliances, automobiles and commercial and manufacturing equipment.The company has the largest global market share for the tiny spindle motors that power hard-disk drives.The two product groups with the largest sales are hard-disk drive motors and electrical and optical components with 21.5% and 30% of sales, repectively.As of 2015, the company has 230 subsidiaries companies located across Japan, Asia, Europe and the Americas. Nidec is listed on the first section of the Tokyo Stock Exchange and is a constituent of the TOPIX 100 stock market index.The company was number 42 on the 2005 edition of the Businessweek Infotech 100 list. Also Nidec was featured on the 2014 Forbes World’s Most Innovative Companies list. Wikipedia.
Nidec Corporation | Date: 2015-06-30
An impeller of an axial fan includes a cup-shaped blade support portion configured to cover a rotor holder, and blades arranged in a circumferential direction radially outside of the blade support portion. Rotation of the impeller generates a downward air flow. The axial fan includes first and second balance correction portions. The first balance correction portion is located between the blade support portion and the rotor holder. The second balance correction portion is located axially below the first balance correction portion, and is located axially below the rotor holder and a junction of each blade with the blade support portion. The impeller includes a first cone portion located axially below the second balance correction portion, and decreases in diameter with decreasing height.
Nidec Corporation | Date: 2015-08-24
A radio frequency electric power conversion mechanism of the present invention includes a circuit board including a fiber reinforced resin board, instead of an expensive ceramic circuit board. The radio frequency electric power conversion mechanism has a combined configuration of a plurality of fiber reinforced resin boards laminated to each other with a conductive foil therebetween, a via hole array made of an electric conductor passing through the boards, a transmission line closely adhered to the surface of a board, and a waveguide having a notch in a part of the waveguide on the aperture side. The radio frequency electric power conversion mechanism further has other structural features.
Nidec Corporation | Date: 2015-07-14
An on-vehicle radar device includes a mount and an antenna configured to transmit a transmission wave from an inner side of laminated glass, which includes an innermost glass layer, an outermost glass layer, and an intermediate resin layer, and receive a reflected wave. The antenna includes a transmitting antenna. When the mount is mounted on a bracket, the incident angle of the transmission wave on the innermost glass layer is greater than a Brewster angle on the inner surface of the innermost glass layer, and the incident angle of the transmission wave on the outermost glass layer is less than or equal to a Brewster angle between the outermost glass layer and the intermediate resin layer.
Nidec Corporation | Date: 2015-09-23
A radar apparatus of the present invention includes an antenna member capable of emitting or receiving microwaves; a feed unit including a plurality of waveguides each having one end connected to a base portion of the antenna member; a radio frequency circuit in contact with the feed unit; an information-processing circuit; a signal line connecting the radio frequency circuit and the information-processing circuit; and a common board equipped with the radio frequency circuit and the information-processing circuit. Since planar positions of the information-processing circuit and the radio frequency circuit on the common board do not overlap with each other, it is possible to downsize the radar apparatus. The common board includes a closed foil made of conductive material and surrounding the radio frequency circuit, and the closed foil made of conductive material is grounded.
Nidec Corporation | Date: 2015-08-12
A lens unit may include a plurality of lenses, a lens holder, and a circular ring-shaped sealing member made of rubber. A first lens disposed closest to an object side is a plastic lens and formed with a small diameter part in a step shape on an image side of the first lens. A sealing member accommodation part is provided between an outer peripheral face of the small diameter part and an opposed face and accommodates the sealing member so as to have clearance in an optical axis direction. An inner face of the lens holder is formed with a sealing member coming-off prevention part which is projected to the sealing member accommodation part to narrow the clearance on the image side of the sealing member accommodation part and thereby movement to the image side of the sealing member is restricted.