Patents by Inventor Tze Chao
Tze Chao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11695192Abstract: An adapter for coupling a coaxial transmission line to a waveguide, wherein the center conductor of the coaxial line passes via a back short of the waveguide through an iris and that terminates to the inside wall of the waveguide.Type: GrantFiled: July 27, 2021Date of Patent: July 4, 2023Assignee: Millimeter Wave Systems, LLCInventors: Martin Skowyra, William R. Shedd, Christopher Tze-Chao Koh
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Publication number: 20220263483Abstract: A cryogenic parametric amplifier control apparatus is disclosed. Methods of implementation and devices incorporated within the whole of the apparatus are disclosed. Methods of reducing the number of signal lines necessary to control a parametric amplifier are disclosed. Schema allowing for control of multiple parametric amplifiers with a single apparatus are disclosed.Type: ApplicationFiled: July 6, 2020Publication date: August 18, 2022Inventors: Christopher Tze-Chao Koh, Kenneth Ray Wood
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Publication number: 20220037756Abstract: An adapter for coupling a coaxial transmission line to a waveguide, wherein the center conductor of the coaxial line passes via a back short of the waveguide through an iris and that terminates to the inside wall of the waveguide.Type: ApplicationFiled: July 27, 2021Publication date: February 3, 2022Inventors: Martin Skowyra, William R. Shedd, Christopher Tze-Chao Koh
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Publication number: 20150317653Abstract: Predicting demand of a product offered in multiple channels for a seller that has a plurality of physical store channels and one or more virtual channels, may comprise obtaining transaction log data having records of sales transactions with location identifiers in the one or more virtual channels. The one or more virtual channels may be segmented by locations based on locations of the physical stores and the location identifiers in the transaction log data. A demand model may be estimated by location that incorporates demand for the multiple channels in that location and captures cross-effect of said multiple channels in the same location based on historic sales and transaction data. Integrated price optimization may be performed across all channels and locations that compute one or more prices for each virtual channel and one price for each location in the other channels while also satisfying a plurality of inter-channel and inter-locations constraints.Type: ApplicationFiled: April 30, 2014Publication date: November 5, 2015Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Markus R. Ettl, Pavithra Harsha, Tze Chao Ng, Shivaram Subramanian
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Publication number: 20150120394Abstract: Techniques are described for generating benefits reports for a markdown optimization system. As described herein, a markdown optimization system executes markdown optimization software that applies to compute markdown schedules for retailers. In addition, the markdown optimization system applies techniques to reliably approximate and quantify the benefit derived by a given retailer from using of a computed markdown schedule instead of utilizing a user-defined schedule.Type: ApplicationFiled: June 19, 2014Publication date: April 30, 2015Inventors: Saibal Bhattacharya, Charles Tze-Chao Ng, Siqun Wang, Monica S. Wong
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Publication number: 20150120409Abstract: Techniques are described for generating benefits reports for a markdown optimization system. As described herein, a markdown optimization system executes markdown optimization software that applies to compute markdown schedules for retailers. In addition, the markdown optimization system applies techniques to reliably approximate and quantify the benefit derived by a given retailer from using of a computed markdown schedule instead of utilizing a user-defined schedule.Type: ApplicationFiled: October 24, 2013Publication date: April 30, 2015Applicant: International Business Machines CorporationInventors: Saibal Bhattacharya, Charles Tze-Chao Ng, Siqun Wang, Monica S. Wong
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Patent number: 8134511Abstract: A phased array antenna device is described. The phased array antenna device includes at least one one-dimensional phased array of radiating elements arranged along an array direction, a lens, and a phase control element. The lens is arranged such that divergent beams from the radiating elements are collimated by the lens in a direction orthogonal to the array direction to produce a beam. The phase control element is configured to apply a linear phase gradient to the radiating elements thereby providing one-dimensional electronic beam steering for the antenna device. The antenna device may additionally include one or two mechanical positioners to mechanically move the at least one one-dimensional phased array in directions orthogonal to the array direction, where the phased array enables scanning along the array direction.Type: GrantFiled: April 29, 2008Date of Patent: March 13, 2012Assignee: Millitech Inc.Inventors: Christopher Tze-Chao Koh, Thomas Robert Newman, Kent Arthur Whitney
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Publication number: 20090327037Abstract: A system and method for tuning markdown plans is provided. Such a system and method may include configuring initial rule set. Initial Demand models are generated. A first optimization for inventory pricing may be received from the price optimization system. The first optimization uses the initial demand models and cost data. A markdown plan is generated by applying the initial rule set to the first optimization. The plan is implemented. Updated data may be received which mandates a re-optimization of the plan. Demand models are refreshed using the updated data. Initial rule set is updated by cross referencing plan history with the initial rule set and subtracting rule events that have previously occurred. A second optimization is received which uses the refreshed demand models and cost data. Then, the markdown plan is re-optimized by applying the updated rule set to the second optimization. The re-optimized markdown plan is reported, approved and implemented.Type: ApplicationFiled: September 11, 2008Publication date: December 31, 2009Inventors: Charles Tze Chao Ng, Thuan-Luyen Le, Saibal Bhattacharya, Rob Parkin, Paritosh Desai
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Publication number: 20080278394Abstract: A phased array antenna device is described. The phased array antenna device includes at least one one-dimensional phased array of radiating elements arranged along an array direction, a lens, and a phase control element. The lens is arranged such that divergent beams from the radiating elements are collimated by the lens in a direction orthogonal to the array direction to produce a beam. The phase control element is configured to apply a linear phase gradient to the radiating elements thereby providing one-dimensional electronic beam steering for the antenna device. The antenna device may additionally include one or two mechanical positioners to mechanically move the at least one one-dimensional phased array in directions orthogonal to the array direction, where the phased array enables scanning along the array direction.Type: ApplicationFiled: April 29, 2008Publication date: November 13, 2008Inventors: Christopher Tze-Chao KOH, Thomas Robert NEWMAN, Kent Arthur WHITNEY
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Patent number: 5490976Abstract: In a continuous process for reacting particulate ore with a liquid reagent in a counter-current vertical column the improvement comprising:(a) providing an upper and lower chamber for the vertical column;(b) maintaining sufficient upward flow of liquid reagent in The upper chamber so that the particulate ore is wetted and deaerated, at least some fine particles thereof are carried overhead for removal, and the remainder thereof settle and enter the lower chamber; and(c) maintaining sufficient fluidization and retention time in the lower chamber so that the desired amount of reaction with the ore takes place, at least some of the fine ore particles which are generated from the reaction process and/or which are introduced with the particulate ore are entrained and carried upward for removal, and the reacted particulate ore exits the lower chamber.Type: GrantFiled: April 25, 1994Date of Patent: February 13, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Foster W. Rennie, Tze Chao, Donald H. Eastham, James V. Tarbell
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Patent number: 5181956Abstract: Process for beneficiating titanium bearing ore selected from the group consisting essentially of titaniferous ores, leucoxene, rutile, perovskite, and sphene comprising:(a) contacting said ore with an aqueous solution of a mineral acid having a concentration of about 3-30 percent by weight said contacting taking place at a temperature of about 160.degree.-300.degree. C., until the desired amount of impurities are solubilized and a leachate is formed,(b) removing the leachate from the product of step (a).Type: GrantFiled: May 20, 1991Date of Patent: January 26, 1993Assignee: E. I. du Pont de Nemours and CompanyInventor: Tze Chao
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Patent number: 5085837Abstract: Process for purifying TiO.sub.2 ore consisting essentially of subjecting the ore to two or more leaching treatments, said leaching treatments alternating between use of an aqueous solution of a mineral acid and an aqueous solution of an alkali metal compound selected from the group consisting essentially of alkali metal carbonates, hydroxides or mixtures thereof.Type: GrantFiled: December 27, 1990Date of Patent: February 4, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: Tze Chao, George H. Senkler, Jr.
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Patent number: 5011666Abstract: Process for purifying TiO.sub.2 ore consisting essentially of subjecting the ore to two or more leaching treatments, said leaching treatments alternating between use of an aqueous solution of a mineral acid and an aqueous solution of an alkali metal compound selected from the group consisting essentially of alkali metal carbonates, hydroxides or mixtures thereof.Type: GrantFiled: July 28, 1988Date of Patent: April 30, 1991Assignee: E. I. Du Pont de Nemours and CompanyInventors: Tze Chao, George H. Senkler, Jr.
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Patent number: 4655839Abstract: A solid, water impervious landfillable composition of a process for treating iron chloride wastes such as those obtained when chlorinating titanium ore is disclosed. The process involves reacting the iron chlorides with limestone in molten CaCl.sub.2.xH.sub.2 O, where x equals 3-6. The composition comprises CaCl.sub.2.xH.sub.2 O where x is from 3-6 and FeO.sub.Y where Y is from 1.0-1.5 and the weight ratio of CaCl.sub.2.xH.sub.2 O (calculated as CaCl.sub.2.2H.sub.2 O)/FeO.sub.Y is from 1/9-4/1.Type: GrantFiled: January 17, 1985Date of Patent: April 7, 1987Assignee: E. I. Du Pont de Nemours and CompanyInventors: Tze Chao, Jack K. Nyquist
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Patent number: 4532113Abstract: A process for treating iron chloride wastes such as those obtained when chlorinating titanium ore is disclosed. The process involves reacting the iron chlorides with limestone in molten CaCl.sub.2.xH.sub.2 O, where x equals 3-6 and separating the resulting iron oxide from the molten CaCl.sub.2.xH.sub.2 O.Type: GrantFiled: September 6, 1983Date of Patent: July 30, 1985Assignee: E. I. Du Pont de Nemours and CompanyInventors: Tze Chao, Jack K. Nyquist