Patents by Inventor Jack C. Chang
Jack C. Chang 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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Publication number: 20240023695Abstract: A personal care product dispensing system with a body defining a cavity configured to retain a spreadable personal care product. A spreadable material is positioned within the cavity. A cover is mounted to the body. The cover defines a first aperture extending from a top surface of the cover to a bottom surface of the cover. A flexible applicator pad is mounted to the top surface of the cover with a valve positioned over the first aperture. The flexible applicator pad has a plurality of projections and a projection density of 10 to 40 projections per square centimeter.Type: ApplicationFiled: July 24, 2023Publication date: January 25, 2024Inventors: Jonathan William Staudt, Jack C. Chang
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Patent number: 10864018Abstract: A method of manufacturing a medical linear member includes a step of forming a first spiral body (1) whose cross-sectional shape is a substantially perfect circular shape by spirally winding a base body (3) having a plurality of arrayed wires (2) formed of a shape memory alloy, around a winding core (4), a step of performing a first shape memory process on the first spiral body (1), a step of cutting the first spiral body (1) into a first predetermined length, a step of removing the winding core (4) from the cut first spiral body (1), a step of forming a second spiral body (6) whose cross-sectional shape is a flat shape by compressing the first spiral body (1) in a diametral direction, and a step of performing a second shape memory process on the second spiral body (6).Type: GrantFiled: August 6, 2015Date of Patent: December 15, 2020Assignee: SYNTEC CORPORATIONInventors: Kazumi Akatsu, Jack C. Chang
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Publication number: 20180221057Abstract: A method of manufacturing a medical linear member includes a step of forming a first spiral body 1 whose cross-sectional shape is a substantially substantially perfect circular shape by spirally winding a base body 3 having a plurality of arrayed wires 2 formed a shape memory alloy, around a winding core 4, a step of performing a first shape memory process on the first spiral body 1, a step of cutting the first spiral body 1 into a first predetermined length, a step of removing the winding core 4 from the cut first spiral body 1, a step of forming a second spiral body 6 whose cross-sectional shape is a flat shape by compressing the first spiral body 1 in a diametral direction, and a step of performing a second shape memory process on the second spiral body 6.Type: ApplicationFiled: August 6, 2015Publication date: August 9, 2018Inventors: Kazumi Akatsu, Jack C. Chang
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Patent number: 6389159Abstract: A method of providing colored adjusted digital files which can be used to make prints by a printing system, including a computer and a local printer, controlled by enabling software stored on the removable storage medium, the original images being provided on colored film, including the steps of scanning the colored film to produce a plurality of digital files representing colored digital images; adjusting the digital files to produce color adjusted digital files, such adjustments including tone scale correction; providing enabling software including at least one software application program for operating the computer that enables the color adjusted digital files to be printed on the local printer, and transferring the color adjusted digital files and the enabling software to the removable storage medium.Type: GrantFiled: January 12, 2001Date of Patent: May 14, 2002Assignee: Eastman Kodak CompanyInventors: Paul B. Gilman, Jack C. Chang, Kenneth A. Parulski, Jeffrey R. Pink
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Publication number: 20010006560Abstract: A method of providing colored adjusted digital files which can be used to make prints by a printing system, including a computer and a local printer, controlled by enabling software stored on the removable storage medium, the original images being provided on colored film, including the steps of scanning the colored film to produce a plurality of digital files representing colored digital images; adjusting the digital files to produce color adjusted digital files, such adjustments including tone scale correction; providing enabling software including at least one software application program for operating the computer that enables the color adjusted digital files to be printed on the local printer, and transferring the color adjusted digital files and the enabling software to the removable storage medium.Type: ApplicationFiled: January 12, 2001Publication date: July 5, 2001Inventors: Paul B. Gilman, Jack C. Chang, Kenneth A. Parulski, Jeffrey R. Pink
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Patent number: 6208770Abstract: A method of making digital colored prints by a particular printer operated by enabling software, the original images being provided on a colored film original includes scanning the colored film original to produce a digital image file of a digital image; adjusting the code values of the digital file to produce a color adjusted digital file, such adjustments including density and color balance correction adjustments; transferring both the color adjusted digital file and printing enabling software to a digital memory; and coupling the printer to the digital memory and causing the printer in response to the printing enabling software to operate on the color adjusted digital file to produce a transformed digital file and a print produced using such transformed digital file.Type: GrantFiled: September 18, 1998Date of Patent: March 27, 2001Assignee: Eastman Kodak CompanyInventors: Paul B. Gilman, Jack C. Chang, Kenneth A. Parulski, Jeffrey R. Pink
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Patent number: 5294870Abstract: An organic electroluminescent multicolor image display device is disclosed containing an image display array made up of a plurality of light emitting pixels arranged in intersecting files (rows and columns). Each pixel contains a light transmissive first electrode, an electroluminescent medium overlying the first electrode, and an overlying second electrode. The electrodes connect the pixels in an X-Y addressing pattern. The organic electroluminescent medium emits in the blue region of the spectrum. Each pixel is divided into at least two sub-pixels. The electrodes of one set of parallel files is divided into at least two laterally spaced elements each of which joins and forms a part of one sub-pixel of each pixel in the same file. A fluorescent medium capable of absorbing light emitted by the electroluminescent medium and emitting at a longer wavelength is positioned to receive emitted light from the first electrode means. The fluorescent medium is confined to only one of the sub-pixels of each pixel.Type: GrantFiled: December 30, 1991Date of Patent: March 15, 1994Assignee: Eastman Kodak CompanyInventors: Ching W. Tang, David J. Williams, Jack C. Chang
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Patent number: 4282079Abstract: A planar glass ion-selective electrode is described comprising an inherently conductive internal reference electrode, a cation-selective glass membrane and means for adhering the reference electrode to the glass membrane. The thickness of the glass membrane is uniform in regions intended for contact with a sample for analysis.The glass electrode is useful in assaying for the presence of sodium, hydrogen, potassium and other cations present in samples such as blood, urine, plasma, and serum.Type: GrantFiled: February 13, 1980Date of Patent: August 4, 1981Assignee: Eastman Kodak CompanyInventors: Jack C. Chang, James R. Sandifer
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Patent number: 4214968Abstract: A dry-operative ion-selective electrode comprising:(a) a dried, internal reference electrode, and(b) in contact with the reference electrode, a hydrophobic ion-selective membrane.The ion-selective electrode described herein requires no preconditioning prior to use in an ion-sensing operation.The reference electrode may comprise either a metal/metal salt reference half-cell or multiple-layer redox couple reference electrode. The hydrophobic membrane includes a binder having dispersed therein a solution of an ion carrier dissolved in a suitable carrier solvent.A preferred embodiment provides for electrodes of the type described wherein the hydrophobic membrane layer is of a predetermined, uniform thickness in regions thereof intended for contact with a sample for analysis. When necessary or desirable, the electrode includes a support. A novel technique for making measurements of ion concentration by reading electrode potential prior to equilibration of the electrode is also described.Type: GrantFiled: April 5, 1978Date of Patent: July 29, 1980Assignee: Eastman Kodak CompanyInventors: Charles J. Battaglia, Jack C. Chang, Daniel S. Daniel
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Patent number: 4088488Abstract: Stable nitroxyl radicals are useful as oxidants in photographic elements or film units.Type: GrantFiled: November 25, 1975Date of Patent: May 9, 1978Assignee: Eastman Kodak CompanyInventors: Jack C. Chang, Peter A. Marr, Samuel J. Ciurca, Jr.