International Business Machines Corporation

Hitachi Global Storage Technologies Netherlands B.v.

Owen R Melroy

Mohamad Towfik Krounbi

Donald Ray Gillis

Mike Suk

Daniel Alexander Ford

Lee K Dorius

James Harvey Kaufman

Shanlin Duan

Thomas A Gregory

Vedantham Raman

Robert Waltman

Timothy Martin Reith

Cameron Shea Miner

Richard Lindsay Stover

Kenneth E Johnson

Kevin P Roche

One-sided magnetic media for a hard disk drive. Methods are implemented to create a magnetic media with only one surface capable of recording data. The second surface is a non-data recording side of the media and is constructed so that it does not interfere with the recording properties of the recording side or the structural usefulness of the media. Additionally, the second surface can be a low quality surface capable of limited magnetic recording.

One magnetic sided media for low cost and low capacity applications

A lubricating perfluoropolyether (PFPE) composition for lubricating one or more disks in a disk drive system may be formed by providing a first component of PFPE molecules having an aggregate vapor pressure in the range of 1&times;10 to 1&times;10 atm and a second component of PFPE molecules comprising at least 5% of the total number of molecules of the first component, wherein the second component includes an aggregate vapor pressure lower than that of the first component. The first and second components are mixed together to form a homogeneous composition, which may be in the liquid form. The composition may be introduced into a reservoir in a vapor phase lubricant reservoir system in a disk drive enclosure.

Disk drive lubricant reservoir systems and lubricants used therein

Attractive heat sinks are used to cool the central processing unit and other solid state electronic components in electronic devices such as computers. In preferred embodiments, heat sinks snap onto one or both sides of a laptop computer to provide cooling. The heat sinks may consist of one or more sealed tubes of various cross sections containing a fluid mixture or solution. Preferred embodiments of the heat sinks rely on the principle of Rayleigh-Benard convection to provide a visually attractive &ldquo;bubble lamp&rdquo; display, &ldquo;glitter lamp&rdquo; display, or other convective fluid lamp display.

Visual heat sink for computers and method of use

A slider used in a disk drive apparatus is described which has an air bearing surface and a trailing surface and a plurality of recessed steps at the trailing edge. These steps at the trailing edge greatly reduce stictional forces.

Recessed slider trailing edge for reducing stiction

Via holes are etched in an alumina layer using an etchant bath of ethylenediaminetetraacetic acid at a pH above 9.

Process for etching via holes in alumina

Growing community of inventors

Morgan Hill, CA, United States of America

Owen R Melroy