Jean Ichun Chang

US Patent:

7612170, Nov 3, 2009

Filed:

Jan 13, 2006

Appl. No.:

11/332037

Inventors:

Juha Punnonen - Belmont CA, US
Alexandra L. L. Lazetic - San Jose CA, US
Steven R. Leong - Berkeley CA, US
Jean Chia-Chun Chang - Los Gatos CA, US

Assignee:

Maxygen, Inc. - Redwood City CA

International Classification:

C07K 14/705
C07K 16/46
A61K 38/16

US Classification:

530350, 5303873, 514 12, 4241341

Abstract:

The invention provides polynucleotides and polypeptides encoded therefrom having advantageous properties, including an ability of the polypeptides to preferentially bind a CD28 or CTLA-4 receptor at a level greater or less than the ability of human B7-1 to bind CD28 or CTLA-4, or to induce or inhibit altered level of T cell proliferation response greater compared to that generated by human B7-1. The polypeptides and polynucleotides of the invention are useful in therapeutic and prophylactic treatment methods, gene therapy applications, and vaccines.

US Patent:

7717935, May 18, 2010

Filed:

Aug 5, 2005

Appl. No.:

11/198915

Inventors:

Ross Tsugita - Mountain View CA, US
Jean Chang - Mountain View CA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61M 29/00
A61F 11/00

US Classification:

606200, 606108

Abstract:

A filter system for temporary placement of a filter in an artery or vein is disclosed. The filter system includes a guidewire that is first positioned across a lesion within a vessel. The guidewire may include a distal stop. A slideable filter is then advanced along the guidewire using an advancing mechanism, typically an elongate member slideable over the guidewire and contacting the filter. A capture sheath may be disposed about the filter during advancement. Once the filter is positioned downstream of the lesion, the capture sheath is withdrawn, allowing the filter to expand. Further distal advancement of the filter is prohibited by the stop. After expansion of the filter, the capture sheath and the advancing mechanism are withdrawn from the region of interest, and removed from the patient's vessel. The filter may then be retrieved using a capture sheath or exchanged for a second filter after removing the first filter.

US Patent:

7731683, Jun 8, 2010

Filed:

Sep 6, 2005

Appl. No.:

11/220227

Inventors:

Ross S. Tsugita - Mountain View CA, US
Bruce S. Addis - Redwood City CA, US
Tracy D. Maahs - Santa Clara CA, US
Jean C. Chang - Santa Clara CA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61M 29/00

US Classification:

604 9601, 60410104, 60410201, 60410203

Abstract:

A catheter system comprising a guidewire, an endovascular catheter, and an aspiration catheter. The guidewire has an expandable occluder mounted on a distal end. The guidewire and the endovascular catheter are insertable into a lumen of the aspiration catheter. The aspiration catheter also includes infusion and aspiration lumen(s) and port(s). Methods of using the catheter system for treating a vascular lesion and removing embolic material during the procedure are also disclosed.

US Patent:

7931665, Apr 26, 2011

Filed:

Oct 24, 2007

Appl. No.:

11/923351

Inventors:

Ross Tsugita - Mountain View CA, US
Jean Chang - Mountain View CA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61M 29/00
A61F 2/06

US Classification:

606200, 606108

Abstract:

A filter system for temporary placement of a filter in an artery or vein is disclosed. The filter system includes a guidewire that is first positioned across a lesion within a vessel. The guidewire may include a distal stop. A slideable filter is then advanced along the guidewire using an advancing mechanism, typically an elongate member slideable over the guidewire and contacting the filter. A capture sheath may be disposed about the filter during advancement. Once the filter is positioned downstream of the lesion, the capture sheath is withdrawn, allowing the filter to expand. Further distal advancement of the filter is prohibited by the stop. After expansion of the filter, the capture sheath and the advancing mechanism are withdrawn from the region of interest, and removed from the patient's vessel. The filter may then be retrieved using a capture sheath or exchanged for a second filter after removing the first filter.

US Patent:

8152782, Apr 10, 2012

Filed:

May 20, 2010

Appl. No.:

12/784264

Inventors:

Ross S. Tsugita - Mountain View CA, US
Bruce S. Addis - Redwood City CA, US
Tracy D. Maahs - Santa Clara CA, US
Jean C. Chang - Santa Clara CA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61M 25/00

US Classification:

604264, 604 35

Abstract:

A catheter system comprising a guidewire, an endovascular catheter, and an aspiration catheter. The guidewire has an expandable occluder mounted on a distal end. The guidewire and the endovascular catheter are insertable into a lumen of the aspiration catheter. The aspiration catheter also includes infusion and aspiration lumen(s) and port(s). Methods of using the catheter system for treating a vascular lesion and removing embolic material during the procedure are also disclosed.

US Patent:

8291158, Oct 16, 2012

Filed:

Jan 18, 2005

Appl. No.:

11/037711

Inventors:

Jean Rawwei Chang - Santa Clara CA, US
Erika Marianna Dawson - Tucson AZ, US
Jon Arthur Lynds - San Jose CA, US
Michael Ray Noel - Tucson AZ, US
Linda Jean Schiltz - Flagstaff AZ, US
Michael William Wood - Warwick, GB

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 12/00

US Classification:

711111, 711 4, 711154

Abstract:

An apparatus, system, and method are disclosed for enforcing policy controls for non-system managed tape media. The apparatus includes an operating system configured to communicate with a tape media drive, and an identification module configured to identify a tape media type of a tape media cartridge. The apparatus may also include a policy module configured to maintain control policies for tape media types, and a media control module configured to enforce the control policies. The system includes a computing system having a processor, a cache, an operating system, and a plurality of input/output interfaces, a tape media drive coupled to the computing system, and the apparatus. The method includes communicating with a tape media drive, identifying a tape media type of a tape media cartridge, maintaining a plurality of control policies for tape media types, and enforcing the plurality of control policies.

US Patent:

8321379, Nov 27, 2012

Filed:

Aug 26, 2003

Appl. No.:

10/648064

Inventors:

Jean R. Chang - Santa Clara CA, US
Kirby Grant Dahman - Tucson AZ, US
Erika Marianna Dawson - Tucson AZ, US
Stanley Mark Kissinger - Tucson AZ, US
Gavin Stuart Johnson - Aromas CA, US
Jon Arthur Lynds - San Jose CA, US
Michael Ray Noel - Tucson AZ, US
Linda Jean Schiltz - Flagstaff AZ, US

Assignee:

International Business Machines Corporation - Armonk NY

International Classification:

G06F 17/30

US Classification:

707654, 707655, 707666

Abstract:

An apparatus, system, and method are presented for scaling storage media to improve data access performance. A scaling module is provided and configured to receive a dataset, identify storage characteristics of the dataset, make a determination based upon user-defined storage criteria, and select a storage instruction. In one embodiment, the storage instruction is configured to scale the storage medium to a predefined capacity. The predefined capacity of the storage medium is configured to optimize data access performance. Alternatively, the storage instruction is configured to not scale the storage medium. Additionally, the present invention may be configured to map and track the storage medium while the dataset is being written to or read from the storage medium.

US Patent:

20020095174, Jul 18, 2002

Filed:

Feb 22, 2002

Appl. No.:

10/080770

Inventors:

Ross Tsugita - Mountain View CA, US
Jean Chang - Mountain View CA, US

Assignee:

SCIMED LIFE SYSTEMS, INC. - Maple Grove MN

International Classification:

A61M029/00

US Classification:

606/200000

Abstract:

A filter system for temporary placement of a filter in an artery or vein. The filter system includes a guidewire that is first positioned across a lesion within a vessel. The guidewire may include a distal stop. A slideable filter is then advanced along the guidewire using an advancing mechanism, typically an elongate member slideable over the guidewire and contacting the filter. A capture sheath may be disposed about the filter during advancement. Once the filter is positioned downstream of the lesion, the capture sheath is withdrawn, allowing the filter to expand. Further distal advancement of the filter is prohibited by the stop. After expansion of the filter, the capture sheath and the advancing mechanism are withdrawn from the region of interest, and removed from the patient's vessel. The filter may then be retrieved using a capture sheath or exchanged for a second filter after removing the first filter.