Keke
Keke Chen, Ames, IA US
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20140099505 | COMPOSITIONS INCLUDING ESTERIFIED LIGNIN AND POLY(LACTIC ACID) AND CARBON FIBERS PRODUCED THEREFROM - The present invention relates to compositions comprising esterified lignin and poly(lactic acid). In various embodiments, the present invention provides fibers comprising the esterified lignin and poly(lactic acid) blend, carbon fibers made therefrom, and methods of making the fiber and the carbon fibers. | 04-10-2014 |
Keke Lepulu, Menlo Park, CA US
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20120109277 | APPARATUS AND METHOD FOR PENETRATING AND ENLARGING ADJACENT TISSUE LAYERS - A catheter for penetrating and dilating a passage from a first body lumen to a second body lumen comprises a catheter body, a tapered dilating tip at a distal end of the catheter body, a reciprocatable needle carried in a central passage of the catheter body, a deployable anchor carried near a distal end of the needle, and an advanceable blade carried in a slot at the distal end of the catheter body and advanceable in a track formed axially along the needle. The catheter can be used to penetrate adjacent luminal walls by first advancing the needle, and advancing the dilator over the needle followed by deploying the anchor, applying proximal tension to hold the adjacent tissue layers together, and then advancing the dilator with the exposed blade to fully dilate the passage. | 05-03-2012 |
20120130417 | APPARATUS AND METHOD FOR PENETRATING AND ENLARGING ADJACENT TISSUE LAYERS - A catheter for penetrating and dilating a passage from a first body lumen to a second body lumen comprises a catheter body, a tapered dilating tip at a distal end of the catheter body, a reciprocatable needle carried in a central passage of the catheter body, a deployable anchor carried near a distal end of the needle, and an advanceable blade carried in a slot at the distal end of the catheter body and advanceable in a track formed axially along the needle. The catheter can be used to penetrate adjacent luminal walls by first advancing the needle, and advancing the dilator over the needle followed by deploying the anchor, applying proximal tension to hold the adjacent tissue layers together, and then advancing the dilator with the exposed blade to fully dilate the passage. | 05-24-2012 |
20130310833 | METHODS AND DEVICES FOR ACCESS ACROSS ADJACENT TISSUE LAYERS - Adjacent tissue layers can be accessed using a catheter device with a distal tip having a conductive portion including a first cutting feature and one or more projections extending from the first cutting feature towards an outer diameter of the distal tip. Electrical energy can be supplied to the conductive portion of the device to cut tissue. A stent can be delivered to form a fluid communication between the adjacent tissue layers. | 11-21-2013 |
20140236064 | DEVICES AND METHODS FOR FORMING AN ANASTOMOSIS - Devices and methods for deploying an anastomotic stent between portions of the gastro-intestinal (GI) tract are disclosed. The anastomotic stents are configured to atraumatically engage the tissue walls and to permit the flow of fluid, partially digested food, and food. The stents can be deployed using endoscopic catheter devices, laparoscopic tools, and combinations of both endoscopic tools and laparoscopic tools. Examples of anastomoses include anastomoses between the stomach and a portion of the intestines such as the jejunum. Anastomoses can also be formed between two closed ends of the intestines, such as two closed ends of the colon formed during a colon resection procedure. Anastomoses can also be formed between a fundal pouch formed during a gastric bypass procedure and the jejunum. Laparoscopic tools are disclosed to deploy a stent by selectively removing a radial restraint on a self expanding stent with the restraint removed through the laparoscopic access points. | 08-21-2014 |
Keke Liu, Beijingi CN
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20120266062 | ROUTE CONFIGURATION IMPLEMENTATION METHOD AND ROUTING DEVICE - The embodiments of the present invention relate to the field of communication technologies and disclose a route configuration implementation method and a routing device, The route configuration implementation method includes: when it has been detected that an address entered in a browser is a locally configured address, analyzing a type of a display connected to a routing device; and if the display is a display of a first type, providing a pre-stored simplified page for the browser for displaying, where the pre-stored simplified page includes a route configuration page, and a page of the browser is displayed through the display and the simplified page is smaller than a regular page to match the screen of the display of the first type, where the resolution of the screen of the display of the first type is lower than that of a regular screen. | 10-18-2012 |
Keke Liu, Beijing CN
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20130208669 | METHOD AND DEVICE FOR RESOURCE ALLOCATION OF BACKHAUL LINK CONTROL CHANNEL INFORMATION - The present invention discloses a method and device for resource allocation of backhaul link control channel information. Upon application of a technical solution proposed by embodiments of this invention and based on the condition of introducing DMRS and CSI-RS, make remaining REs which are not occupied by CSI-RS and/or DM-RS in OFDM symbol that contains REs for transmitting CSI-RS and/or DM-RS constitute REG to transmit backhaul link control channel information or abandon them; thus, on the basis of maximizing the reservation of existing LTE system specification, specifying resource allocation scheme of backhaul link control channel information in corresponding physical resource block, giving consideration to both simple specification design and full utilization of resources, and realizing flexible design and allocation in light of the demand of a real system. | 08-15-2013 |
Keke Sun, Beijing CN
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20140257169 | USE OF PHOTOSENSITIZER IN PREPARATION OF VIRUS-INACTIVATING MEDICAMENTS FOR TREATING DISEASES - The invention relates to the field of medicament use, in particular to the clinical use of photosensitizers for inactivating viruses in the treatment of blood vessel plaque, leukemia, AIDS, hepatitis and the like. The invention is based on the affinity of photosensitizer to blood vessel plaque focus, leukemia cells, tumor, and/or virus, which is several times higher than that to normal tissues, to destroy focus cells or virus by generating singlet oxygen ( | 09-11-2014 |
20140288182 | USE OF CARBAMIDE PEROXIDE INJECTION IN PREPARATION OF VIRUS INACTIVATION MEDICAMENTS FOR TREATING DISEASES - The invention relates to the field of medicament use, in particular to the clinical use of carbamide peroxide injection series for virus inactivation in the treatment of blood vessel plaque, leukemia, AIDS and hepatitis, etc. The invention utilizes the affinity of photosensitizers to blood vessel plaque focus, leukemia cells, tumor, and/or virus, which is several times higher than that to normal tissues, so as to destroy focus cells or virus by generating sufficient singlet oxygen ( | 09-25-2014 |
20150351710 | MRI-PET CEPHALIC MOLECULAR IMAGING COIL AND MRI-PET CEPHALIC MOLECULAR IMAGING SYSTEM - This invention discloses an MRI-PET cephalic molecular imaging coil and an MRI cephalic molecular imaging system including this MRI-PET cephalic molecular imaging coil; the said MRI-PET cephalic molecular imaging coil is an integrated and nested structure, with a molecular signal acquisition assembly installed on the peripheral surface of the MRI cephalic RF coil, the said molecular signal acquisition assembly including a crystal gamma-ray detector and photoelectric conversion structure; the said photoelectric conversion structure is semi-conductors, having an effect in preventing the impact of magnetic field on gamma-ray imaging, hence making it possible to obtain precision fusion images of magnetic resonance and molecular imagery and ensuring consistency of physiological and biochemical information in spatial location and temporal synchronization. | 12-10-2015 |
Keke Wu, Shenzhen CN
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20140236979 | Information searching method and device, and computer storage medium - It is described an information searching method and device and a computer storage medium, which belong to the field of computers. The method includes that: a keyword for search input by a user is acquired, and user information of the user is acquired as well; and search is performed according to the keyword and the user information to obtain searched-out information that matches the keyword o and is relevant to the user information. The device includes an acquiring module and a searching module. The computer storage medium stores a computer program for executing the method. With the method, it is possible to perform search according to the acquired keyword and the user information to obtain searched-out information that matches the keyword and is relevant to the user information. The information obtained with the searching method described herein is highly relevant to the user, thereby enhancing the relevance between the searched-out information and the user. | 08-21-2014 |
20140317117 | METHOD, DEVICE AND COMPUTER STORAGE MEDIA FOR USER PREFERENCES INFORMATION COLLECTION - Disclosed are a method, device and computer storage media for user preferences information collection belonging to the computer field. The method comprises: extracting keywords which the user operation involved in the process; determining whether there is the same tag with the keyword in the pre-set tag library; if determining that there is the same tag with the keyword in the pre-set tag library, storing the same tag with the keyword into the user personal tag library. The present invention can improve the coverage and accuracy of user preferences information collection by extracting the keywords which the user operation involved in daily applications and storing the same name tag with the extracted keyword into the user personal tag library. | 10-23-2014 |
Keke Zhang, Beijing CN
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20130299920 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - The present invention discloses a semiconductor device, comprising a substrate, a gate stack structure on the substrate, a gate spacer structure at both sides of the gate stack structure, source/drain regions in the substrate and at opposite sides of the gate stack structure and the gate spacer structure, characterized in that the gate spacer structure comprises at least one gate spacer void filled with air. In accordance with the semiconductor device and the method for manufacturing the same of the present invention, carbon-based materials are used to form a sacrificial spacer, and at least one air void is formed after removing the sacrificial spacer, the overall dielectric constant of the spacer is effectively reduced. Thus, the gate parasitic capacitance is reduced and the device performance is enhanced. | 11-14-2013 |
20150118818 | METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - The present invention discloses a method for manufacturing a semiconductor device, comprising the steps of: forming a dummy gate stack structure on a substrate, wherein the dummy gate stack structure contains carbon-based materials; forming source/drain region in the substrate on both sides of the dummy gate stack structure; performing etching to remove the dummy gate stack structure until the substrate is exposed, resulting in a gate trench; and forming a gate stack structure in the gate trench. In accordance with the method for manufacturing a semiconductor device of the present invention, the dummy gate made of carbon-based materials is used to substitute the dummy gate made of silicon-based materials, then no oxide liner and/or etch blocking layer needs be added while the dummy gate is removed by etching in the gate last process, thus the reliability of device is ensured while the process is simplified and the cost is reduced. | 04-30-2015 |
Keke Zhang, Liaocheng CN
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20140361353 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - The present application discloses a method for manufacturing a semiconductor device, comprising: forming a T-shape dummy gate structure on the substrate; removing the T-shape dummy gate structure and retaining a T-shape gate trench; filling successively a gate insulation layer and a metal layer in the T-shape gate trench, wherein the metal layer forms the T-shape metal gate structure. According to the semiconductor device manufacturing method disclosed in the present application, the overhang phenomenon and the formation of voids are avoided in the subsequent metal gate filling process by forming a T-shape dummy gate and a T-shape gate trench, and the device performance is improved. | 12-11-2014 |
20150194501 | METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - A method for manufacturing a semiconductor device, comprising: forming a gate stack structure and gate spacers on the substrate; forming the raised S/D regions on the substrate on both sides of the gate stack structure and the gate spacers; depositing a lower interlayer dielectric layer on the entire device, and planarizing the lower interlayer dielectric layer and the gate stack structure until the raised S/D regions are exposed; selective epitaxial growing to form the S/D extension regions in the raised S/D regions; forming an upper interlayer dielectric layer on the S/D extension regions; etching the upper interlayer dielectric layer until the S/D extension regions to form an S/D contact hole; forming a metal silicide in the S/D contact hole. | 07-09-2015 |
Keke Zhang, Liaocheng City CN
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20150187892 | METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE - A method for manufacturing a semiconductor device is disclosed, comprising: forming a contact sacrificial layer on the substrate, etching the contact sacrificial layer to form a contact sacrificial pattern, wherein the contact sacrificial pattern covers the source region and the drain region and has a gate trench that exposes the substrate; forming a gate spacer and a gate stack structure in the gate trench; partially or completely etching off the contact sacrificial pattern that covers the source region and the drain region so as to form a source/drain contact trench; and forming a source/drain contact in the source/drain contact trench. By means of the double-layer contact sacrificial layer, the method for manufacturing a semiconductor device in accordance with the present invention effectively reduces the spacing between the gate spacer and the contact region and increases the area of contact region, thus effectively reducing the parasitic resistance of the device. | 07-02-2015 |
20150340456 | SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A method for manufacturing a semiconductor device is disclosed. The method comprises: forming a T-shape dummy gate structure on the substrate; removing the T-shape dummy gate structure and retaining a T-shape gate trench; forming a T-shape metal gate structure by filling a metal layer in the T-shape gate trench. According to the semiconductor device manufacturing method disclosed in the present application, the overhang phenomenon and the formation of voids are avoided in the subsequent metal gate filling process by forming a T-shape dummy gate and a T-shape gate trench, and the device performance is improved. | 11-26-2015 |
Keke Zhang, Liaocheng City, Shandong CN
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20160133696 | FIN-FET STRUCTURE AND METHOD OF MANUFACTURING SAME - A method for fabricating a FinFET DEVICE is provided in the invention, comprising: a. providing a substrate ( | 05-12-2016 |
Keke Zhou, Beijing CN
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20150302185 | METHOD AND APPARATUS FOR ACCOUNT INTERCOMMUNICATION AMONG APPS - A method and apparatus for account intercommunication among APPs. The method comprises: acquiring account information entered by a user in a current APP; and, after using the account information to log in successfully, providing the account information to other APPs having intercommunication permissions with the current APP for the other APPs to log in. Via the disclosed method, account information entered in any APP may be shared among APPs having intercommunication permissions with the APP, so that other APPs may be logged into using an intercommunicated account after they are opened, without the need to manage account information about various APPs through a unified entrance, and thus the APP need not access the entrance in advance, and login can be realized without the need to exit the APP to open the entrance; obviously, the flexibility and independence of APP login are improved, and the complexity of operation is reduced. | 10-22-2015 |