Nidec Corp. v. United States

861 F. Supp. 136, 18 Ct. Int'l Trade 821, 18 C.I.T. 821, 16 I.T.R.D. (BNA) 2150, 1994 Ct. Intl. Trade LEXIS 164
CourtUnited States Court of International Trade
DecidedSeptember 1, 1994
DocketSlip Op. 94-138. Court No. 91-07-00507
StatusPublished
Cited by2 cases

This text of 861 F. Supp. 136 (Nidec Corp. v. United States) is published on Counsel Stack Legal Research, covering United States Court of International Trade primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
Nidec Corp. v. United States, 861 F. Supp. 136, 18 Ct. Int'l Trade 821, 18 C.I.T. 821, 16 I.T.R.D. (BNA) 2150, 1994 Ct. Intl. Trade LEXIS 164 (cit 1994).

Opinion

OPINION & ORDER

AQUILINO, Judge:

In this action, which has been designated a test case pursuant to CIT Rule 84(b), the plaintiff contests classification of its merchandise by the U.S. Customs Service under subheading 8501.10.40 of the Harmonized Tariff Schedule of the United States (“Electric motors ...: Motors of an output not exceeding 37.5 W: Of under 18.65 W: ... Other”) while the defendant opines that this *137 is “the first ‘motor’ case to be adjudicated ... under the HTSUS,” and “the scope of the ‘electric motor’ heading ... and the question of whether a precision ‘spindle motor’ is within the scope of the HTSUS heading[] appear to be issues of first impression.” Defendant’s Post-Trial Memorandum of Law, pp. 2-3.

I

Plaintiffs complaint characterizes the goods as “computer spindles for rigid disk drives” allegedly contained in six entries listed on the summons 1 and maintains that they should be classified under HTSUS subheading 8473.30.40 (“Parts and accessories ... suitable for use solely or principally with machines of headings 8469 to 8472: ... Parts and accessories of the machines of heading 8471: Not incorporating a cathode ray tube”). HTSUS heading 8471 encompasses “Automatic data processing machines and units thereof’. Other references to the merchandise in this action include “brushless DC motor”, “disk drive precision spindle”, “disk memory spindle”, “motorized computer spindle”, “spindle assembly” and “spindle motor”. Whatever the nomenclature, there are three elements, namely, a shaft centering a precision spindle, a stator and a rotor, imported either separately or loosely connected. See trial transcript (“Tr.”), pp. 41, 45-46, 60; Plaintiffs Exhibits 5 and 6. They were custom-designed for assembly in computer hard-disc drives of the Hewlett-Packard Company called Coyote I or Coyote II and manufactured by that firm until the stator and the rotor were “outsourced” to the plaintiff, as was the spindle “when Nidec’s capabilities matched [H-P’s] requirements”. Tr. at 25. See also Pretrial Order, Schedule C, para. 3.

At trial, Steven M. Johnson of Hewlett-Packard described a computer hard-disc drive as a

magnetic storage device.... in the form of rigid, aluminum platters [the media] which are coated with a magnetic material,] ... have a ... read/write head, and by sending current through that head which contains an electromagnet, we can magnetize very small domains in that magnetic media. Then, as we rotate the disk ... and ... pass over those magnetic domains they will cause a current in the read/write head which we can then decode and that’s how we read and write information in a hard disk drive.

Tr. at 8-9. The Coyote drives have individual discs stacked about a spindle. The Coyote II spindle mounts eight discs and rotates at approximately 4,000 rpm, while the Coyote I was designed to accommodate six discs and speeds of 3,300 rpm. See id. at 36. A Hewlett-Packard patent 2 on electrical isolation of the disc stack for the Coyote II depicts various components, including those at issue herein, in the following manner, among others:

*138 [[Image here]]

Those at bar (and illustrated schematically supra as on sheet 3 of the patent dated March 12, 1991) are numbered 19, the spindle; 25, the drive shaft; 27a, the stator; and 27b, the rotor. The patent states:

The spindle 19 comprises an upper cylindrical support, about which an inner barrel of the disk stack is journalled by bearings. The disks la of the disk stack are clamped between annular spacers in a stack between a lower flange of the barrel 21 and a circular clamping plate at the top of the barrel 21. A disk stack drive shaft 25 is journalled by bearings in the spindle 19 and engages and is secured to the disk stack at the clamping plate to rotate the disk stack. 3

Furthermore:

The disk stack is rotated by a motor 27, having a stator 27a secured to the bottom end of the spindle 19 and a rotor 27b secured to the bottom end of the disk stack drive shaft 25. Screws, which thread into the spindle 19 through its bottom face secure the motor stator [2]7a to the bottom face of the spindle 19 and also secure connectors on the ends of conductors and to the stator 27a, to provide electrical connections thereto. These electrical connections extend from the stator 27a to the spindle 19 to the bearings to the inner barrel 21 of the disk stack and to the disk stack, including the individual disks la. A plug receptacle is secured in a cavity in the bottom face of the base of the mainframe. The conductor 29 is connected to a terminal in that plug to be supplied with a DC bias voltage, the same as that coupled to the magnetic heads 3a at each disk la____ The other conductor is grounded through a capacitor to provide an AC ground, but which is an open circuit to the DC bias voltage. Thus the DC bias voltage is conducted from the plug, via conductor 29 to the stator 27a, to the spindle 19, to the bearings 23, to the inner barrel 21, and from there to the individual disks la. 4

See also Tr. at 25-38.

*139 In addition to this disc assembly, which “contains basically the mechanical portion”— the read-write heads, the discs, the spindle and the actuator, the “other main assembly”, according to the plaintiff, is the printed circuit assembly, which, among other things, contains the drive and commutation electronics for the motor. See id. at 9, 16.

Each read/write head rides over a disc on a cushion of air, separated from it at a distance of 10- to 20-millionths of an inch, while the disc rotates at speeds of up to 4,000 times per minute. See id. at 11,12,17-18. Stability, positioning and speed are crucial to precise operation. See id. at 21-28. See also id. at 17 (rotation must be exact “both in terms of speed and angle versus time” to permit the heads to read data stored on the discs). Hence, a discdrive has to have an axis of rotation that

doesn’t translate or go up and down or side to side, or wobble at all. So, we have to specify that axis ... and define it, and produce that theoretical line. And the device we use to do that is called the spindle.

Id. at 18. The spindle “fixes certain degrees of freedom and doesn’t allow certain motions through.” Id. at 83. Its precision rotation minimizes non-repeatable runout, which was described as follows:

If we imagine writing a circumferential track on the disk, all spindles have some runout. And what that is ... if we look at a surface of the hub and we rotate the hub ... and look at radial displacements, those radial displacements would be called run-out of a spindle----
Non-repeatable runout would be runout that doesn’t repeat.

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Bluebook (online)
861 F. Supp. 136, 18 Ct. Int'l Trade 821, 18 C.I.T. 821, 16 I.T.R.D. (BNA) 2150, 1994 Ct. Intl. Trade LEXIS 164, Counsel Stack Legal Research, https://law.counselstack.com/opinion/nidec-corp-v-united-states-cit-1994.