U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Bizarre Patents

Patent No. 5285430

Behavior Modification Wristwatch

A wristwatch including a watch band and a watch body having an octagon shaped perimeter and being red in color and having the word STOP thereon to resemble a stop sign.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 360/264.4 - Independent head movement


Subclass of Class 360 - Dynamic magnetic information storage or retrieval
Definition: Subject matter wherein each of multiple heads are moved
No. of patents: 26
Last issue date: 05/06/2008


NumberTitleIssue Date
7369355Magnetic disk drive apparatus and manufacturing method of magnetic disk drive apparatus
A magnetic disk drive apparatus includes a housing member with first and second faces opposed to each other, at least part of each of the first and second faces being opened, a first cover member for covering the first face of the housing member, a second cover memb...
05/06/2008
7324301Striping data simultaneously across multiple platter surfaces
A hard disk drive comprises an actuator with independently movable arms and a printed circuit board with custom core electronic architecture. The drive also comprises one or more platters aggregating two or more platter surfaces whereupon data may be read from or wr...
01/29/2008
7146623Head support device and it's driving method, and drive disk using same
The present invention provides a head support mechanism wherein the position can be accurately corrected at a high speed when the mode is shifted from reproducing to recording, and also, the deflection of recording magnetic field from the direction of initialized ma...
12/05/2006
7068449Slider fly control
A disc drive data storage system is disclosed that includes a disc storage medium having a disc surface. The system also includes an armature and a slider coupled to the armature. The slider supports a transducer head that communicates with the disc storage medium. ...
06/27/2006
7031115Data storage device having single actuator assembly or multiple actuator assemblies
A data storage device is provided having at least one disk rotated by a spindle motor and at least one actuator arm assembly rotatable in response to a voice coil motor about a pivot point for moving a magnetic head on an actuator arm for writing data onto the track...
04/18/2006
7031116Moving magnet voice coil motor using Halbach arrays
An information handling system includes a base, a disc rotatably attached to the base, and an actuator assembly movably attached to the base the actuator assembly. An actuator assembly has an opening at the pivot therein. An actuator arm attached to the main body, a...
04/18/2006
6967801Adjusting clock frequency in a disk drive and a disk system using the same
The electromagnetic noise radiated from a magnetic disk system comprising two or more magnetic disk drives is reduced so as not to exceed a certain level although the electromagnetic noise from each magnetic disk drive is added up. This is achieved by setting a diff...
11/22/2005
6947852Monitoring and correcting for non-translational motion in a resonance measurement apparatus
A system and method for assessing and potentially correcting for non-translational motion in a resonance measurement apparatus is provided. The design measures the response of an article, such as an HGA assembly including a read/write head, as well as the excitation...
09/20/2005
6937411Method, system, program, and storage cartridge for storing data in a storage medium
Provided is a method, system, and program for storing data in a storage medium. A layout of a storage medium including a first and second user data sections is provided, wherein the first user data section comprises a faster access storage space than the second user...
08/30/2005
6937442Contacting point damping method between flex circuit and pivot housing
The present invention for a disk drive is a damping feature applied to the contact area between the flexible circuit and the pivot housing, reducing the resonance energy transferred from the flexible circuit to the pivot housing. This invention reduces the direct en...
08/30/2005
6859995Universal fixture for HSA assembly and its testing process
A new fixture which is capable of holding an HSA throughout all processes is invented so that Quasi-Static Test can be done before swaging. Handling operations are reduced and rework is made much easier. The invention further provides a process for testing the HSA b...
03/01/2005
6690549Storage device
A magnetic disk unit has two actuators each rotating on a common rotary shaft. The two actuators are driven by a voice coil motor. The voice coil motor comprises: a magnetic circuit comprising a magnet provided for the two actuators on a common basis and ...
02/10/2004
6687092Pivot bearing assembly for compensating for disk drive actuator tilt
A disk drive pivot assembly design has a shaft that supports two actuators. The pivot assembly design compensates for the tilting of the actuators due to shaft bending during seek operations. Two types of bearings of differing stiffness are used to achiev...
02/03/2004
6678120Multiple-modular actuators having a common axis of rotation
Disclosed is a multiple rotary actuator assembly consisting of a plurality of modular actuators, wherein each modular actuator is mounted to and rotates independently about a common pivot shaft. Modular actuators consist of Integrated and Data arms, upon ...
01/13/2004
6603640Dual actuator pivot bearing system and method for making the same
A dual actuator pivot bearing system and method for making the same is disclosed, wherein the need for adhesive bonding is eliminated and assembly time is minimized. The dual actuator pivot includes a first and a second actuator bearing assembly that incl...
08/05/2003
6560075Disk drive with multiple actuators and reduced actuator interactions
A multiple actuator disk drive is disclosed. The mechanical vibration in one actuator induced by motion in the second actuator is greatly reduced by providing an independent bearing shaft for each actuator. The bearing shafts are mounted substantially alo...
05/06/2003
6449130Head stack assembly enabling independent control of a position of magnetic heads for access to different magnetic disks and support method thereof
A hard disk drive is made small in size, large in storage capacity and high in data reading/writing speed. Two actuator blocks (3) are fixed to a sleeve 16A of a first pivot and sleeve (16B) of a second pivot, respectively. Position of magnetic heads to b...
09/10/2002
6125008Flying head positioner having rotational fine positioning and adjustable actuator load
A flying head mechanism includes a flying head, a suspension and an actuator which applies a load force through the suspension. The load force applied by the actuator is adjustable while the head is in operation. The actuator may actively control load for...
09/26/2000
6115215Balanced actuator which accesses separate disc assemblies
A disc drive assembly having a pair of disc packs supported for rotation by independent spindle motors and a single actuator having dual arrays of actuator arms supporting read/write heads for each disc pack. The actuator has dual opposing actuator coils ...
09/05/2000
5870249Magnetic disk drive in which change in distance between magnetic head and disk is minimized
A high-recording-density magnetic disk drive is provided which minimizes changes in the distance between a magnetic disk and a magnetic head and is reduced in size and weight. The magnetic head and a support spring which supports the magnetic head are rot...
02/09/1999
5805386Dual mode independent suspension read/write head assemblies in a hard disk drive
A disk drive system (70) and an actuator assembly (50; 150) therein are disclosed. The actuator assembly (50) includes multiple actuator arms (52; 152) that are independently rotatable about a pivot pin (26) by the operation of multiple voice coil motors ...
09/08/1998
5761007Disk drive with multiple actuators on a single axis having different inertia characteristics
Disclosed is a data recording disk file having multiple actuators mounted on a common pivot axis, one of the actuators having fewer arms and lower inertia characteristics than the other. A servo system separately drives each of the actuators for seek repo...
06/02/1998
5343347Magnetic disk storage module with multiple sets of actuator arms for simultaneous read/write operations at different circumferential locations within the disk stack
A hard disk drive module for providing memory storage for a computer includes a centrally positioned rotatable stack of disks and a plurality of rotary actuator arms mounting magnetic heads for movement radially of the disks to read/write magnetically enc...
08/30/1994
5134532Multiple-disk storage system
A disk drive system which has a plurality of disks and a plurality of transducing head positioning across. The arms are mounted about common shaft for independent notation to desired radial position on the disk....
07/28/1992
4891724Disk drive read/write head rack flexible rail mount apparatus
The disk drive read/write head actuator track apparatus consists of a rail having a rail mount at either end to secure the rail to the frame of the disk drive system. The rail is oriented in a radial direction so that, as the read/write head actuator mech...
01/02/1990
4544972Swinging actuators for use in magnetic disc type memory devices
A magnetic disc type memory device swinging actuator is constituted by a plurality of a driving assemblies juxtaposed on a stationary shaft and extending in the opposite direction. Each driving assembly include a head arm, a magnetic head mounted on one e...
10/01/1985
 
Sign InRegister
Username  
Password   
forgot password?