Jianping Chen

US Patent:

20060146445, Jul 6, 2006

Filed:

Jan 4, 2005

Appl. No.:

11/028224

Inventors:

Thomas Nolan - Fremont CA, US
Samuel Harkness - Berkeley CA, US
Chunghee Chang - Fremont CA, US
Jianping Chen - Milpitas CA, US

International Classification:

G11B 5/66
G11B 5/82

US Classification:

360135000, 428829000

Abstract:

A perpendicular magnetic recording medium adapted for use with a single-pole magnetic transducer head comprises a non-magnetic substrate having a surface, and a layer stack formed over the substrate surface, comprising, in overlying sequence from the substrate surface:

US Patent:

61665363, Dec 26, 2000

Filed:

Jul 24, 1998

Appl. No.:

9/122495

Inventors:

Jianping Chen - Milpitas CA
Hans Jurgen Richter - Santa Clara CA

Assignee:

Seagate Technology LLC - Scotts Valley CA

International Classification:

G01R 3312

US Classification:

324212

Abstract:

A method for measuring the width of an erase band located adjacent to a test track containing a periodic signal at a specified frequency is disclosed. For each position of a read head as it incrementally traverses the erase band and test track, an information signal is read, and a signal level data point is stored which represents the amplitude of the fundamental frequency obtained from a Fourier transform of the information signal. In addition, a media noise level data point is stored which represents an integration of a noise power spectrum obtained from the Fourier spectrum of the information signal over a predetermined frequency range. Once the signal and media noise level data points are obtained, the edge of the test track is approximated by determining from the signal level data points a point at which the amplitude of the stored signal level data points departs from an otherwise substantially constant background noise level. The edge of the erase band is also approximated by determining from the media noise level data points a point at which the amplitude of the stored media noise level data points departs from an otherwise substantially constant background noise level. The width of the erase band is derived by computing the absolute value of the difference between the positions of the edge of the test track and the edge of the erase band.

US Patent:

62141511, Apr 10, 2001

Filed:

Nov 5, 1999

Appl. No.:

9/434996

Inventors:

Jianping Chen - San Jose CA
Jesse Richard Salem - Cupertino CA
John Campbell Scott - Los Gatos CA

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

B44C 1165
B32B 3120
B32B 1508
B03C 810
H01J 162

US Classification:

156240

Abstract:

A method is described for preparing opto-electronic devices such as organic light-emitting diodes. The method is a thermal dye transfer process in which a dye pattern is transferred from a dye transfer plate into a receiving layer of a substrate by bringing the dye transfer plate into contact with the receiving layer and heating to a relatively low temperature, preferably below the vaporization or sublimation temperature of the dye. The pattern of the dye is maintained upon transfer and diffusion. Preferably, the method is repeated to provide a three-color pattern in the receiving layer. The invention also encompasses an opto-electronic device comprising a receiving layer as prepared by the aforementioned method wherein the receiving layer is sandwiched between two electrodes, one of which is transparent. Optionally, a hole-transporting or electron-transporting layer can be deposited between each electrode and the receiving layer.

US Patent:

20160160067, Jun 9, 2016

Filed:

Feb 16, 2016

Appl. No.:

15/044250

Inventors:

- Duesseldorf, DE
Jianping Chen - Irvine CA, US
Gunther Dreezen - Balen Olmen, BE

International Classification:

C09D 11/52
C22C 5/06
H01B 1/02
G06F 3/041

Abstract:

Provided herein are conductive ink compositions having a good balance between adhesion to substrate, stability of submicron-sized particles, the ability to be sintered at relatively low temperatures, and good electrical conductivity. In one aspect, there are provided conductive networks prepared from compositions according to the present invention. In certain aspects, such conductive networks are suitable for use in touch panel displays. In certain aspects, the invention relates to methods for adhering submicron silver particles to a non-metallic substrate. In certain aspects, the invention relates to methods for improving the adhesion of a submicron silver-filled composition to a non-metallic substrate.

US Patent:

20160060474, Mar 3, 2016

Filed:

Nov 9, 2015

Appl. No.:

14/935500

Inventors:

- Duesseldorf, DE
Jianping Chen - Irvine CA, US

International Classification:

C09D 11/52
H05K 1/09
C08K 5/05
C09D 163/00
C08K 5/053
H05K 3/00
G06F 3/041

Abstract:

Provided herein are conductive ink compositions having a good balance between adhesion to substrate, nanoparticle stability, the ability to be sintered at relatively low temperatures, and good electrical conductivity. In one aspect, there are provided conductive networks prepared from compositions according to the present invention. In certain aspects, such conductive networks are suitable for use in touch panel displays. In certain aspects, the invention relates to methods for adhering nanoparticulate silver to a non-metallic substrate. In certain aspects, the invention relates to methods for improving the adhesion of nanoparticulate silver-filled formulation to a non-metallic substrate.

US Patent:

20150322276, Nov 12, 2015

Filed:

Jul 21, 2015

Appl. No.:

14/804469

Inventors:

- Duesseldorf, DE
- Shanghai, CN
Rudie Oldenzijl - Hoogezand, NL
Gunther Dreezen - Balen-Olmen, BE
Qili Wu - Shanghai, CN
Jianping Chen - Irvine CA, US

International Classification:

C09D 11/52
H05K 3/12

Abstract:

This invention is a flexible conductive ink composition comprising (A) a resin binder, (B) silver-plated core conductive particles, and (C) conductive particles having a surface area at least 1.0 m/g.