Bernard Q Li

US Patent:

6885797, Apr 26, 2005

Filed:

Jan 22, 2003

Appl. No.:

10/347789

Inventors:

James C. Lee - Plymouth MN, US
Raymond W. Blasingame - Richardson TX, US
Bo Su Chen - Garland TX, US
Bernard Q. Li - Plymouth MN, US
James D. Orenstein - Duncanville TX, US

Assignee:

Finisar Corporation - Sunnyvale CA

International Classification:

G02B006/26
G02B006/42

US Classification:

385 52, 385 39, 385 50, 385 53, 385 55

Abstract:

A zero-clearance receptacle for single mode optical fiber couplers. The zero-clearance receptacle includes an internally fluted V-groove formed by internally extending legs. The zero-clearance receptacle uses the fundamental action of the V-groove to accurately locate an optical fiber ferrule inserted into the zero-clearance receptacle in the radial direction. The zero-clearance receptacle further includes a slot that receives a biasing element, such as a spring, that biases the optical ferrule against the V-groove legs. This enables accurate positioning of an optical fiber in the optical ferrule relation to an optical element such as a VCSEL or a photoreceptor. The zero-clearance receptacle beneficially fits into an optical coupler, which may have a lens.

US Patent:

6887801, May 3, 2005

Filed:

Jul 18, 2003

Appl. No.:

10/623351

Inventors:

Bernard Q. Li - Plymouth MN, US

Assignee:

Finisar Corporation - Sunnyvale CA

International Classification:

H01L021/31
H01L021/469

US Classification:

438780, 438782

Abstract:

Methods and devices for handling wafers during wafer processing are provided. One embodiment includes an apparatus for holding a wafer. The holding apparatus includes a pocket for receiving a wafer, and may include a mechanism allowing for the wafer to be secured within the pocket. Methods are also included for preparing a wafer for fabrication processes by the use of a wafer holding apparatus. These methods may include applying a layer of photoresist to the surface of a wafer.

US Patent:

7210857, May 1, 2007

Filed:

Jul 16, 2003

Appl. No.:

10/620489

Inventors:

Raymond W. Blasingame - Richardson TX, US
James C. Lee - Plymouth MN, US
Bernard Q. Li - Plymouth MN, US

Assignee:

Finisar Corporation - Sunnyvale CA

International Classification:

G02B 6/36
G02B 6/42
G02B 6/00

US Classification:

385 88, 385 53, 385 60

Abstract:

An optical coupling system having a split sleeve with a metallized strip adhered to a housing barrel at one end. The sleeve may be smaller than an optical fiber ferrule. The sleeve may have spring-like flexibility and be stretched open at the slit sufficiently to permit insertion of the ferrule in the sleeve. The sleeve may be made of zirconia. The ferrule may be held by the sleeve's spring-like contraction around the ferrule. Attached at the other end of the barrel may be an optoelectronic element such as a vertical cavity surface emitting laser. An optical fiber end of the ferrule may be aligned with the laser. Since the ferrule may be held firmly by the sleeve attached to the coupling barrel, there would be virtually no movement or wiggle of the fiber end relative to the laser and thus the alignment may be maintained.

US Patent:

7801613, Sep 21, 2010

Filed:

Apr 26, 2007

Appl. No.:

11/796116

Inventors:

Bernard Li - Plymouth MN, US
Reginald D. Robinson - Plymouth MN, US
John E. Kast - Hugo MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/375

US Classification:

607 36, 607 1, 607 2, 607 3, 607 4, 607 5, 607 37, 607 38

Abstract:

The housing of an implantable medical device is made of a titanium alloy that provides improved electrical performance, mechanical strength, and reduced MRI heating. The titanium alloy housing includes portions formed by metal injection molding and welded together. Wall thickness of at least a portion of one major face of the housing is reduced by chemical etching a metal injected molded housing portion.

US Patent:

8192418, Jun 5, 2012

Filed:

Mar 10, 2009

Appl. No.:

12/401267

Inventors:

Reginald D. Robinson - Plymouth MN, US
David D. Differding - Edina MN, US
James A. Johnson - Blaine MN, US
Bernard Q. Li - Plymouth MN, US
Gerald G. Lindner - Lino Lakes MN, US
Brad C. Tischendorf - Minneapolis MN, US
Andrew J. Thom - Maple Grove MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61M 5/32

US Classification:

604415, 604403, 600372, 600373, 600374, 600310, 600377, 600381, 600393, 600394, 600325, 600327, 600333, 607115, 607119, 607122, 607 36, 102201

Abstract:

In general, the disclosure is directed toward releasing material within a medical device via an optical feedthrough. A system for releasing material with a medical device comprises a cup that holds a material, wherein the cup includes a discharge port, a seal disc that seals the material within the cup, an optical feedthrough assembly coupled to the cup, a shell that defines a chamber within a medical device, wherein the optical feedthrough assembly is coupled to the shell, and a radiant energy source that shines a beam through the optical feedthrough assembly to puncture the seal disc to allow the material to enter the chamber via the discharge port.

US Patent:

8340759, Dec 25, 2012

Filed:

Apr 22, 2011

Appl. No.:

13/092367

Inventors:

Peter B. McIntyre - Mounds View MN, US
Bernard Q. Li - Plymouth MN, US
Ling Wang - Plymouth MN, US
Shangqian P. Zhang - Shoreview MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/00

US Classification:

607 2

Abstract:

Techniques related to coils for medical device are disclosed. One example coil may comprise multiple filars, each being formed of a biocompatible beta titanium alloy having an elastic modulus ranging from 30 GigaPascals (GPa) to 90 GPa and comprising at least two elements from a group consisting of titanium, molybdenum, niobium, tantalum, zirconium, chromium, iron and tin. At least one of the multiple filars may be electrically insulated one from another. A structural body, such as a lead body, may carry the coil. One or more filars may carry a low-resistance core.

US Patent:

8380311, Feb 19, 2013

Filed:

Oct 31, 2006

Appl. No.:

11/590250

Inventors:

Bernard Q. Li - Plymouth MN, US
John J. Grevious - Minneapolis MN, US
Timothy J. Davis - Coon Rapids MN, US
Leroy Perz - Buffalo MN, US
Chris J. Paidosh - St. Anthony MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/375

US Classification:

607 36

Abstract:

A housing for an implantable medical device includes a first portion formed from a first material and a second portion formed from a second material. The first material and the second material comprise titanium and the first material has a higher resistivity than the second material.

US Patent:

8401648, Mar 19, 2013

Filed:

Aug 6, 2008

Appl. No.:

12/186855

Inventors:

John E. Kast - Hugo MN, US
Reginald D. Robinson - Plymouth MN, US
Randy S. Roles - Elk River MN, US
Bernard Q. Li - Plymouth MN, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61N 1/375

US Classification:

607 36

Abstract:

An implantable medical device includes a housing having frame with one or more openings. The openings of the frame are covered with a thin metallic foil that is welded to the frame to provide a hermetic seal. Non-conductive members may be placed in or about the openings to provide a backing or structural support for the metallic foil. By decreasing the mass of conductive material capable of forming eddy currents, improved recharge or telemetry performance may be realized.