Adam D Polcyn

US Patent:

6858331, Feb 22, 2005

Filed:

Aug 29, 2003

Appl. No.:

10/651634

Inventors:

Xiaoping Bian - San Jose CA, US
Mary Frances Doerner - Santa Cruz CA, US
Mohammad S. Mirzamaani - San Jose CA, US
Adam Polcyn - San Jose CA, US

Assignee:

Hitachi Global Storage Technologies Netherlands, B.V. - Amsterdam

International Classification:

G11B005/66
G11B005/70
B05D005/12
H01J001/00

US Classification:

428694TS, 428611, 428667, 428668, 428900, 427130, 427131

Abstract:

A thin film magnetic media structure with a bi-layer structure of amorphous chromium titanium (CrTi) followed by an amorphous layer of nickel phosphorus (NiP) is disclosed. After the NiP has been deposited it is exposed to oxygen to form an oxidized surface. Preferably the underlayer is deposited directly onto the oxidized NiP surface. The bi-layer structure of CrTi/NiP promotes excellent in-plane crystallographic orientation in the cobalt alloy magnetic layer(s) and allows an ultra-thin chromium underlayer to be used which provides better control over grain size and distribution. When the CrTi/NiP bi-layer structure is combined with a circumferentially textured substrate, preferably glass, a high Mrt orientation ratio (OR) results.

US Patent:

6947234, Sep 20, 2005

Filed:

Jul 23, 2002

Appl. No.:

10/202672

Inventors:

Bernd Lamberts - Cupertino CA, US
William Harlow McConnell - Los Altos CA, US
Adam Daniel Polcyn - San Jose CA, US
Frank J. Wang - San Jose CA, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G11B005/09

US Classification:

360 53, 360 31, 360 39, 360 25

Abstract:

Provided are a method, system, and program for performing error correction in a storage device having a magnetic storage medium. A plurality of zones are defined in the magnetic storage medium, wherein each zone comprises a plurality of addressable locations in the magnetic storage medium. A determination is made as to whether a change of a signal-to-noise ratio for one subject zone of the plurality of zones exceeds a threshold. An operation is performed to improve the signal-to-noise ratio with respect to the subject zone of the magnetic storage medium after determining that the change of the signal-to-noise ratio exceeds the threshold.

US Patent:

7092209, Aug 15, 2006

Filed:

Mar 1, 2004

Appl. No.:

10/791431

Inventors:

Wenchien David Hsiao - San Jose CA, US
Vladimir R. Nikitin - Campbell CA, US
Adam D. Polcyn - San Jose CA, US

Assignee:

Hitachi Global Storage Technologies Netherlands B.V. - Amsterdam

International Classification:

G11B 5/66
G11B 5/64
G11B 5/667
D04D 7/06

US Classification:

360135, 360 55, 360125, 360126

Abstract:

A method of longitudinal recording using a medium with a magnetically soft underlayer is described. The method includes lowering the longitudinal coercivity in a magnetic domain in the magnetic recording medium by generating a vertical component of magnetic flux in the magnetic recording medium and writing a longitudinal orientation in the magnetic domain in the magnetic recording medium by generating a larger horizontal component of magnetic flux in the magnetic recording medium using the write head. Optionally the method further includes magnetically saturating the magnetically soft underlayer after lowering the longitudinal coercivity to limit the vertical component of the magnetic flux. The recording medium has a magnetic recording layer, a spacer layer and a soft underlayer. In one embodiment the soft underlayer is an antiferromagnetically coupled magnetic layer stack with two soft magnetic layers separated by a non-magnetic spacer layer selected to achieve the antiferromagnetic coupling.

US Patent:

7419730, Sep 2, 2008

Filed:

Aug 31, 2004

Appl. No.:

10/931642

Inventors:

Xiaoping Bian - San Jose CA, US
Mary Frances Doerner - Santa Cruz CA, US
Tetsuya Kanbe - Cupertino CA, US
Mark Mercado - Morgan Hill CA, US
Mohammad Mirzamaani - San Jose CA, US
Adam Polcyn - San Jose CA, US
Kai Tang - San Jose CA, US

Assignee:

Hitachi Global Storage Technologies Netherlands B.V. - Amsterdam

International Classification:

G11B 5/66

US Classification:

4288281, 428829, 428830, 4288361, 428831, 4288312, 360135

Abstract:

An antiferromagnetically coupled (AFC) magnetic recording medium with an AFC master layer comprising at least two magnetic layers with the top magnetic layer including copper is described. The slave layer is separated from the master layer structure by a nonmagnetic spacer layer selected to antiferromagnetically couple the layers. The master layer structure according to the invention includes a bottom and top layer of distinct ferromagnetic materials. Preferably, the top layer of the master layer is a cobalt alloy including from 1 to 5 at. % copper with an example being CoPtCrBCu. The AFC magnetic layer structure can be used with a variety of substrates including circumferentially textured glass and NiP/AlMg.

US Patent:

7856949, Dec 28, 2010

Filed:

Dec 18, 2007

Appl. No.:

11/958574

Inventors:

Adam D. Polcyn - Pittsburgh PA, US

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

F22B 37/06

US Classification:

122511, 16510426, 165144, 165182

Abstract:

An array of a plurality of heat pipe are mounted in spaced relationship to one another with the hot end of the heat pipes in a heated environment, e. g. the exhaust flue of a furnace, and the cold end outside the furnace. Heat conversion equipment is connected to the cold end of the heat pipes.

US Patent:

7907322, Mar 15, 2011

Filed:

Oct 23, 2008

Appl. No.:

12/256587

Inventors:

Irina G. Schwendeman - Wexford PA, US
Adam D. Polcyn - Pittsburgh PA, US
James J. Finley - Pittsburgh PA, US
Cheri M. Boykin - Kingsport TN, US
Julianna M. Knowles - Apollo PA, US

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

G02F 1/15
G02F 1/03
G09G 3/38
H04N 9/16

US Classification:

359265, 359245, 345105, 348817

Abstract:

An electrochromic device includes a first substrate spaced from a second substrate. A first conductive member is formed over at least a portion of the first substrate. A first electrochromic material is formed over at least a portion of the first conductive member. The first electrochromic material includes an organic material. A second conductive member is formed over at least a portion of the second substrate. A second electrochromic material is formed over at least a portion of the second conductive member. The second electrochromic material includes an inorganic material. An ionic liquid is positioned between the first electrochromic material and the second electrochromic material.

US Patent:

8049949, Nov 1, 2011

Filed:

Aug 21, 2009

Appl. No.:

12/545441

Inventors:

Irina G. Schwendeman - Wexford PA, US
James J. Finley - Pittsburgh PA, US
Adam D. Polcyn - Pittsburgh PA, US
Cheri M. Boykin - Wexford PA, US

Assignee:

PPG Industries Ohio, Inc. - Cleveland OH

International Classification:

G02F 1/15

US Classification:

359265

Abstract:

An electrochromic device includes a first substrate spaced from a second substrate. A first transparent conductive electrode is formed over at least a portion of the first substrate. A polymeric anode is formed over at least a portion of the first conductive electrode. A second transparent conductive electrode is formed over at least a portion of the second substrate. In one aspect of the invention, a multi-layer polymeric cathode is formed over at least a portion of the second conductive electrode. In one non-limiting embodiment, the multi-layer cathode includes a first cathodically coloring polymer formed over at least a portion of the second conductive electrode and a second cathodically coloring polymer formed over at least a portion of the first cathodically coloring polymer. An ionic liquid is positioned between the anode and the cathode.

US Patent:

8085460, Dec 27, 2011

Filed:

Aug 21, 2009

Appl. No.:

12/545410

Inventors:

James J. Finley - Pittsburgh PA, US
Irina G. Schwendeman - Wexford PA, US
Adam D. Polcyn - Pittsburgh PA, US
Caroline S. Harris - Pittsburgh PA, US

Assignee:

PPG Industries Ohio, Inc - Cleveland OH

International Classification:

G02F 1/15
G09G 3/19

US Classification:

359265, 345 49

Abstract:

An electrochromic device includes a first substrate spaced from a second substrate. A first conductive member is formed over at least a portion of the first substrate. A first electrochromic electrode comprising a tungsten oxide coating is formed over at least a portion of the first conductive member. A second conductive member is formed over at least a portion of the second substrate. A second electrochromic electrode is formed over at least a portion of the second conductive member. An ionic liquid is positioned between the first electrode and the second electrode. In one aspect of the invention, the ionic liquid can include nanoparticles of metals or metal oxides. In a further aspect of the invention, the second conductive member and second electrode can be formed by a single material.