WILLIAM J HOGAN, MBBCH
Osteopathic Medicine at 1 St, Rochester, MN

License number
Minnesota 40007
Category
Osteopathic Medicine
Type
Hematology & Oncology
Address
Address
200 1St St SW, Rochester, MN 55905
Phone
(507) 284-2511

Organization information

See more information about WILLIAM J HOGAN at bizstanding.com

Mayo Clinic - William J Hogan MD

200 1 St SW #W4, Rochester, MN 55905

Categories:
Hematology Physicians & Surgeons
Phone:
(507) 284-2511 (Phone)

Professional information

William Hogan Photo 1

Guide Rail And Cam System With Integrated Lock-Down And Kick-Out Spring For Smt Connector For Pluggable Modules

US Patent:
6648693, Nov 18, 2003
Filed:
Sep 8, 1999
Appl. No.:
09/391974
Inventors:
William K. Hogan - Rochester MN
David Peter Gaio - Rochester MN
Frank Ovanessians - Gahanna OH
Scott Michael Branch - Rochester MN
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
H01R 2400
US Classification:
439630, 439923
Abstract:
An electrical connector system has two connectors, one of which is included in a module mateable with the other connector in a pluggable manner. The other connector includes a body and two or more electrical contacts. The body of that electrical connector includes a spring that provides a combined lock-down force and kick-out force. The lock-down force biases the module against the other connector, thereby providing a secure electrical and mechanical connection. The kick-out force biases the module away from the other connector to separate or eject the module when a user actuates a release mechanism. The module also includes a slot that engages a projection on the other connector to promote alignment of the mating electrical contacts.


William Hogan Photo 2

Guide Rail And Cam System With Integrated Connector For Removable Transceiver

US Patent:
6074228, Jun 13, 2000
Filed:
Dec 18, 1998
Appl. No.:
9/216104
Inventors:
Jerry Berg - Kasson MN
David Peter Gaio - Rochester MN
William Kim Hogan - Rochester MN
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
H01R 1362
US Classification:
439180
Abstract:
An electrical connector includes a body and two or more electrical contacts. The body has a guide member that is elongated between a first end and a second end along a first axis and has a connector block at the first end. The connector has a very low profile (preferably, less than about 10 mm high), and the bottom of the body is surface-mountable on a circuit board. The height of the connector can be defined by a vertical axis perpendicular to the first axis. The connector block retains the contacts, which are spaced from one another in the direction of the first axis. The body also has a camming element that, in response to a force of a mating connector being moved along the first axis, brings the contacts of the connector and mating connector together in a generally vertical direction. The camming element may have two oppositely inclined ramp sections. When a mating connector having complementary contacts is, guided by the guide member, moved into engagement with the camming element, the first ramp lifts the mating connector, including its contacts, above the connector block, and the second ramp lowers the mating connector onto the connector block, with the contacts of the mating connector lowering onto and making contact with the contacts of the electrical connector.


William Hogan Photo 3

Optical Fiber Coupler And An Optical Fiber Coupler Incorporated Within A Transceiver Module

US Patent:
6579013, Jun 17, 2003
Filed:
Mar 15, 2001
Appl. No.:
09/809650
Inventors:
David P. Gaio - Rochester MN
William K. Hogan - Rochester MN
Assignee:
JDS Uniphase Corporation - San Jose CA
International Classification:
G02B 638
US Classification:
385 60, 385 66, 385 78
Abstract:
A coupler to interconnect or couple optical fibers together and position ends of the optical fibers juxtaposed with each other, additionally includes a captive split tubular alignment sleeve to accept ferrules on ends of optical fibers to be aligned and coupled. The coupler may be incorporated into an opto-electronic module, captured, and then held against normal forces of connecting and disconnecting the optical fiber. A short optical fiber extends from the coupler through a wall of an enclosure and is terminated adjacent an opto-electronic device to carry optical signals for transmission or reception of optical signals. This coupler may be further used to splice or interconnect optical fibers, in temporary connections or splices, without fusing the glass of the fibers.


William Hogan Photo 4

Electromagnetic Interference Shield And Ground Cage

US Patent:
6407932, Jun 18, 2002
Filed:
Oct 1, 1999
Appl. No.:
09/410016
Inventors:
David Peter Gaio - Rochester MN
William K. Hogan - Rochester MN
Paul John Sendelbach - Rochester MN
Assignee:
JDS Uniphase Corporation - San Jose CA
International Classification:
H05K 900
US Classification:
361818, 361816, 174 35 R, 439607, 385 92, 385 94
Abstract:
An electrical component is provided that has a plurality of electrical leads. Further, an electromagnetic interference shield and ground cage is provided which has a plurality of conductive walls connected together to form an enclosure having an open bottom. One of the walls has a plurality of openings formed therein to allow the plurality of leads to be passed into the enclosure. The electromagnetic interference shield and ground cage further has at least two ground connection pins attached to a lower edge of the walls. One of the leads is a ground lead that is electrically coupled to the electromagnetic interference shield and ground cage at one of the openings, thus reducing the length, inductance and impedance of the ground lead.


William Hogan Photo 5

Method And Apparatus For A Monolithic Integrated Mesfet And P-I-N Optical Receiver

US Patent:
6429499, Aug 6, 2002
Filed:
May 18, 2000
Appl. No.:
09/573748
Inventors:
Randolph B. Heineke - Rochester MN
William K. Hogan - Rochester MN
Scott Allen Olson - Rochester MN
Clint Lee Schow - Rochester MN
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
H01L 31075
US Classification:
257458, 257425, 257438, 257439, 438 57, 438 69, 438 75, 438762
Abstract:
Disclosed is a semiconductor structure and manufacturing process for making an integrated FET and photodetector optical receiver on a semiconductor substrate. A FET is formed by forming at least one p region in a p-well of the substrate and forming at least one n region in the p-well of the substrate. A p-i-n photodetector is formed in the substrate by forming at least one p region in an absorption region of the substrate when forming the at least one p region in the p well of the FET and forming at least one n region in the absorption region of the substrate when forming the at least one n region in the p-well of the FET.


William Hogan Photo 6

Removable Small Form Factor Fiber Optic Transceiver Module Chassis

US Patent:
6609838, Aug 26, 2003
Filed:
Jan 20, 2000
Appl. No.:
09/489870
Inventors:
Scott M. Branch - Rochester MN
David Peter Gaio - Rochester MN
William K. Hogan - Rochester MN
Assignee:
JDS Uniphase Corporation - San Jose CA
International Classification:
G02B 600
US Classification:
385 92, 361752, 439 761
Abstract:
An easily removable modular optical signal transceiver unit for conversion between modulated light signal transmission and electronic data signals and which conforms to the Small Form Factor standard for transceiver interfaces is disclosed. The structural details of its chassis include aspects which insure the proper positioning of electronic circuit boards of a transmitter optical subassembly and a receiver optical subassembly as well as the positioning of electromagnetic radiation shielding on the chassis. In conjunction with an interface device on an electronic circuit board of a host device, the chassis supports electromagnetic radiation shielding which substantially encloses the sources of electromagnetic radiation within the module and suppresses the escape of electromagnetic radiation, thereby preventing electromagnetic interference with sensitive components and devices in proximity to the module. During assembly, the chassis side walls are deflected, so that electronic or electro-optic components can pass over latching surfaces into contact with positioning surfaces for retaining the components in their assembled positions.


William Hogan Photo 7

Technique And Apparatus For Compensating For Variable Lengths Of Terminated Optical Fibers In Confined Spaces

US Patent:
2002013, Sep 19, 2002
Filed:
Mar 15, 2001
Appl. No.:
09/809531
Inventors:
Scott Branch - Rochester MN, US
Michael Hanley - Rochester MN, US
Gary Heitkamp - Rochester MN, US
William Hogan - Rochester MN, US
International Classification:
G02B006/26
US Classification:
385/031000, 385/015000
Abstract:
An optical fiber may be used to interconnect two optical devices precisely disposed at a fixed distance with a fiber substantially larger than the inter-device distance with substantial disregard to tolerancing of the length dimension of the optical fiber so long as the optical fiber maintains a bend radius in excess of the minimum bend radius required for that optical fiber. This is accomplished by forming a loop in the optical fiber. Any increase in specified length of an optical fiber does not require a corresponding increase in available space inasmuch as the radius of the loop will increase only approximately of the length increase. This looping permits lengthened optical fibers and relaxed tolerances permitting use of less expensive optical fibers with no sacrifice in performance quality.


William Hogan Photo 8

Connector System With Outwardly Opening Door For A Removable Transceiver Module

US Patent:
6304436, Oct 16, 2001
Filed:
Dec 3, 1999
Appl. No.:
9/454919
Inventors:
Scott Michael Branch - Rochester MN
David Peter Gaio - Rochester MN
Michael Francis Hanley - Rochester MN
William K. Hogan - Rochester MN
Paul John Sendelbach - Rochester MN
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
H05K 500
US Classification:
361683
Abstract:
A connector system for a removable transceiver module that interfaces with an electronic device, such as a computer, switch, subsystem, peripheral device, disk drive, tape drive and other input/output devices. The electronic device includes an enclosure having a bezel that has an opening for receiving the module. A circuit board is mounted within the enclosure. A guide member is mounted on the circuit board and is elongated between first and second ends along a first axis. A connector block is located at the first end of the guide member, while a door is pivotally mounted at the second end of the guide member. The module is slidably engageable with the guide member in a direction along the first axis. The module also includes electrical contacts electrically connectable with corresponding electrical contacts in the connector block. The door is pivotable between an open position exposing the opening in the bezel and a closed position where a portion of the door outside the enclosure covers the opening.


William Hogan Photo 9

Optical Subassembly For Optical Communications

US Patent:
6873799, Mar 29, 2005
Filed:
Jun 20, 2001
Appl. No.:
09/885683
Inventors:
Mitchell Simmons Cohen - Bedford MA, US
David Peter Gaio - Rochester MN, US
William K. Hogan - Rochester MN, US
Glen Walden Johnson - Yorktown Heights NY, US
Jeannine Madelyn Trewhella - Peekskill NY, US
Assignee:
JDS Uniphase Corporation - San Jose CA
International Classification:
H04B010/00
US Classification:
398135, 398128, 398138
Abstract:
An optical signal transceiver subassembly is mounted on a lead frame for further attachment to an electronic printed circuit board. The optical subassembly is comprised of a solid-state laser, a pair of photo-detectors, an over-mold of transparent material having shapes forming the exposed surface thereof, the surface and a selective silvering of a portion thereof defining a beam-splitter mirror and an interior reflective focusing surface, preferably in the shape of a partial cylindrical surface. The beam-splitter mirror is lightly silvered and the cylindrical surface is silvered to enhance the reflection of the laser beam. The optical subassembly is further enclosed with a housing incorporating a pair of lenses and alignment pins. The lenses focus the data stream of optical light signals onto the end of the outgoing optical fiber and the data stream of optical light signals from the incoming optical fiber onto and through the beam-splitter and onto a first photo-detector. The beam-splitter and the partial cylindrical surface reflect the laser beam portion deflected from the primary laser beam path onto a second photo-detector to provide a data stream from which the operation of the laser may be monitored, thereby insuring the proper transmission of the data signals provided to the laser through the lead frame and its associated electronic connections.


William Hogan Photo 10

Optical Fiber Space Transformation

US Patent:
6976792, Dec 20, 2005
Filed:
Sep 26, 2000
Appl. No.:
09/670250
Inventors:
Mitchell S. Cohen - Yorktown Heights NY, US
David P. Gaio - Rochester MN, US
William K. Hogan - Rochester MN, US
Jeannine M. Trewhella - Peekskill NY, US
Assignee:
International Business Machines Corporation - Armonk NY
International Classification:
G02B006/42, C03B037/075
US Classification:
385 88, 385 89, 385 92, 385129, 65402
Abstract:
Methods and arrangements for providing compact optical paths between an optical connector, such as an MTRJ connector, and optoelectronic chips contained in TO cans. The methods and arrangements employed for creating the optical paths include the use of fibers that are not prone to fail from bending stresses, or waveguides.