Bing Zhang

US Patent:

6919989, Jul 19, 2005

Filed:

Oct 30, 2003

Appl. No.:

10/697725

Inventors:

Qi Deng - Cupertino CA, US
Xiwen Wang - Coram NY, US
Bing Zhang - San Jose CA, US
Liren Du - San Jose CA, US
Shuqing Ma - Sunnyvale CA, US
Yonglin Huang - Milpitas CA, US

Assignee:

Finisar Corporation - Sunnyvale CA

International Classification:

G02B027/28
G02B005/30

US Classification:

359494, 359495, 359280

Abstract:

A device functions as a polarization beam combiner and an isolator. When light is transmitted in a first propagation direction, a second beam is displaced towards a first beam. The second beam has a polarization orthogonal to the polarization of the first beam, and the second beam is substantially parallel to the first beam. The polarizations of the first and second beams are rotated by a same first amount in a first rotation direction and then rotated by the same first amount in a second opposite rotation direction. The first and second beams are combined by displacing the second beam towards the first beam. The combined beam is polarized along a first plane and second plane, which is orthogonal to the first plane. When light is transmitted in a second opposite propagation direction, the device is used to provide optical isolation.

US Patent:

6973224, Dec 6, 2005

Filed:

Oct 30, 2003

Appl. No.:

10/697544

Inventors:

Qi Deng - Cupertino CA, US
Liren Du - San Jose CA, US
Shuqing Ma - Sunnyvale CA, US
Bing Zhang - San Jose CA, US
Xiwen Wang - Coram NY, US
Yonglin Huang - Milpitas CA, US

Assignee:

Finisar Corporation - Sunnyvale CA

International Classification:

G02B006/00

US Classification:

385 11, 385 20, 385 34

Abstract:

A polarization beam combiner/splitter (“PBCS”) for combining and splitting multiple channels of light beams simultaneously is disclosed. The PBCS includes a first fiber array, a second fiber array, and an optical core composed of a birefringent or other suitable material. The first fiber array includes a plurality of optical fiber pairs, while the second fiber array includes a corresponding plurality of optical fibers. The optical core is sized to modify light beams from any of the optical fibers of the first or second array. In a beam combining operation, multiple channels of polarized beams are emitted by the optical fiber pairs of the first fiber array and passed through the optical core, which combines the beams into dual-polarized combined light beams. The combined beams exit the optical core and are received by the second array of optical fibers. A similar beam splitting operation can be performed on multiple combined beams.

US Patent:

20030174937, Sep 18, 2003

Filed:

Mar 12, 2003

Appl. No.:

10/386736

Inventors:

Yonglin Huang - Milpitas CA, US
Shuqing Ma - San Jose CA, US
Qi Deng - Cupertino CA, US
Bing Zhang - San Jose CA, US

International Classification:

G02B006/28

US Classification:

385/024000, 385/047000

Abstract:

An integrated wavelength division multiplexer (WDM) coupler is provided which performs multiple optical coupling functions; the WDM coupler includes a first multi-fiber end optical termination and a second multi-fiber end optical termination; a filter is provided between the optical terminations which reflects certain light and passes certain light; the first and second optical terminations and the filter are arranged in relation to one another so as to perform at least one coupling function upon each of at least two separate non-bi-directional optical signals.

US Patent:

20120142550, Jun 7, 2012

Filed:

Dec 5, 2011

Appl. No.:

13/311367

Inventors:

James L. Zehnder - Menlo Park CA, US
Bing Zhang - Fremont CA, US

International Classification:

C40B 30/04
C40B 30/00
G01N 33/566
C12Q 1/68

US Classification:

506 9, 435 611, 506 7, 435 612, 435 71, 435 792

Abstract:

Aspects of the subject invention are drawn to methods, compositions, systems and kits for the assessment of oxidative stress in an individual from a blood sample. In certain embodiments, the expression level of VNN1 in blood cells from a subject (or patient) is assessed and used to determine the subject's oxidative stress state, where an increased/high expression level of VNN1 indicates that the subject is in a state of oxidative stress. Expression of VNN1, and optionally other genes, may be done by assessing nucleic acid and/or protein levels in the blood cells obtained from the subject.

US Patent:

57728577, Jun 30, 1998

Filed:

Feb 28, 1996

Appl. No.:

8/608142

Inventors:

Bing Zhang - Fremont CA

Assignee:

Seagate Technology, Inc. - Scotts Valley CA

International Classification:

C23C 1434

US Classification:

2041922

Abstract:

Double layer, or bi-layer, magnetic films are deposited over a substrate with an underlayer. The bi-layer film is a film of two different magnetic layers which have different chemical composition, deposited with no spacer layer between the two layers. The lower magnetic layer should be of a low noise magnetic material, while the upper magnetic layer should be a high coercivity magnetic material. The bi-layer film exhibits a single response to magnetic recording and a joint coercivity different from the coercivity of either layer by itself. A preferred double layer media uses a CoCrTa layer deposited under a CoCrTaPt layer, with the CoCrTa layer comprising 30 to 70% of the total film thickness. The double layer film produces magnetic media with higher coercivity and lower media noise as compared to single layered films of either of the materials of the magnetic layers.

US Patent:

59520973, Sep 14, 1999

Filed:

Nov 4, 1997

Appl. No.:

8/964259

Inventors:

Bing Zhang - Fremont CA

Assignee:

Seagate Technology, Inc. - Scotts Valley CA

International Classification:

G11B 566

US Classification:

428332

Abstract:

Double layer, or bi-layer, magnetic films are deposited over a substrate with an underlayer. The bi-layer film is a film of two different magnetic layers which have different chemical composition, deposited with no spacer layer between the two layers. The lower magnetic layer should be of a low noise magnetic material, while the upper magnetic layer should be a high coercivity magnetic material. The bi-layer film exhibits a single response to magnetic recording and a joint coercivity different from the coercivity of either layer by itself. A preferred double layer media uses a CoCrTa layer deposited under a CoCrTaPt layer, with the CoCrTa layer comprising 30 to 70% of the total film thickness. The double layer film produces magnetic media with higher coercivity and lower media noise as compared to single layered films of either of the materials of the magnetic layers.

US Patent:

60226099, Feb 8, 2000

Filed:

Oct 2, 1996

Appl. No.:

8/726296

Inventors:

Chuan Gao - Fremont CA
Roger Klas Malmhall - Mountain View CA
Bing Zhang - Fremont CA
Kevin Grannen - Pacific CA
Be Van Ho - San Jose CA

Assignee:

Seagate Technology, Inc. - Scotts Valley CA

International Classification:

G11B 566

US Classification:

428141

Abstract:

The signal-to-noise ratio of a magnetic recording medium having a thin magnetic layer is improved by adjusting the deposition conditions of the underlayer so that the magnetic layer is pseudo-epitaxially grown with a substantially uniform sub-micron-scale morphology. Uniform sub-micron-scale morphology can be attained by strategic selection of the underlayer and magnetic layer materials, and by controlling the underlayer deposition conditions so that the magnetic layer is epitaxially grown by a growth mechanism which is predominantly layer by layer. In an embodiment of the present invention, an underlayer comprising an alloy of chromium with vanadium, titanium or manganese, or an underlayer comprising a nickel-aluminum alloy, is sputter deposited at a pressure less than about 10 mTorr, substrate temperature greater than about 300. degree. C. and substrate bias greater than about 300 V, and a cobalt magnetic layer is epitaxially grown thereon, predominantly layer by layer.

US Patent:

58585664, Jan 12, 1999

Filed:

Jul 3, 1996

Appl. No.:

8/678424

Inventors:

Bing Zhang - Fremont CA

Assignee:

Seagate Technology, Inc. - Scotts Valley CA

International Classification:

G11B 564
G11B 566

US Classification:

428694TS

Abstract:

A seed layer is deposited under an underlayer in magnetic thin film media. The seed layer material has a similar lattice parameter and a similar crystal structure to the underlayer material. The preferred structure involves a nickel-aluminum seed layer, under a chromium underlayer, under a cobalt-based magnetic layer. Use of the nickel-aluminum seed layer produces higher coercivity and lower media noise in the resultant magnetic thin film. The coercivity and media noise values for the resultant magnetic thin film are dependent upon deposition parameters, and recommended deposition parameters are given.