Patents by Inventor Yasuhiko Sentoku
Yasuhiko Sentoku 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: 10051719Abstract: In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 ?m. In particular examples, the distance is less than about 1 ?m. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.Type: GrantFiled: April 29, 2016Date of Patent: August 14, 2018Assignee: Board of Regents of the Nevada System of Higher Education, on Behalf of the University of Nevada, RenoInventors: Jesse D. Adams, Grant Korgan, Steven Malekos, Nathalie Renard-Le Galloudec, Yasuhiko Sentoku, Thomas E. Cowan
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Publication number: 20170094768Abstract: In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 ?m. In particular examples, the distance is less than about 1 ?m. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.Type: ApplicationFiled: April 29, 2016Publication date: March 30, 2017Applicant: Board of Regents of the Nevada System of Higher Education on behalf of the University of NevadaInventors: Jesse D. Adams, Grant Korgan, Steven Malekos, Nathalie Renard-Le Galloudec, Yasuhiko Sentoku, Thomas E. Cowan
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Patent number: 9345119Abstract: In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 ?m. In particular examples, the distance is less than about 1 ?m. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.Type: GrantFiled: March 15, 2013Date of Patent: May 17, 2016Assignee: Board of Regents of the Nevada System of Higher Education, on behalf of the University of Nevada, RenoInventors: Jesse D Adams, Steven Malekos, Nathalie Le Galloudec, Grant Korgan, Thomas Cowan, Yasuhiko Sentoku
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Patent number: 8750459Abstract: In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 ?m. In particular examples, the distance is less than about 1 ?m. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.Type: GrantFiled: March 12, 2012Date of Patent: June 10, 2014Assignee: Board of Regents of the Nevada System of Higher EducationInventors: Thomas Cowan, Steven Malekos, Grant Korgan, Jesse Adams, Yasuhiko Sentoku, Nathalie LeGalloudec
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Publication number: 20140030542Abstract: In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 ?m. In particular examples, the distance is less than about 1 ?m. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.Type: ApplicationFiled: March 15, 2013Publication date: January 30, 2014Inventors: Jesse D. Adams, Steven Malekos, Nathalie Le Galloudec, Grant Korgan, Thomas Cowan, Yasuhiko Sentoku
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Publication number: 20120298624Abstract: In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 ?m. In particular examples, the distance is less than about 1 ?m. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.Type: ApplicationFiled: March 12, 2012Publication date: November 29, 2012Inventors: Thomas Cowan, Steven Malekos, Grant Korgan, Jesse Adams, Yasuhiko Sentoku, Nathalie Le Galloudec, Julien Fuchs
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Patent number: 8229075Abstract: In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 ?m. In particular examples, the distance is less than about 1 ?m. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.Type: GrantFiled: September 12, 2006Date of Patent: July 24, 2012Assignee: Board of Regents of the Nevada System of Higher Education, on Behalf of the University of Nevada, RenoInventors: Thomas Cowan, Steven Malekos, Grant Korgan, Jesse Adams, Yasuhiko Sentoku, Nathalie Le Galloudec, Julien Fuchs
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Publication number: 20100028707Abstract: In particular embodiments, the present disclosure provides targets including a metal layer and defining a hollow inner surface. The hollow inner surface has an internal apex. The distance between at least two opposing points of the internal apex is less than about 15 ?m. In particular examples, the distance is less than about lam. Particular implementations of the targets are free standing. The targets have a number of disclosed shaped, including cones, pyramids, hemispheres, and capped structures. The present disclosure also provides arrays of such targets. Also provided are methods of forming targets, such as the disclosed targets, using lithographic techniques, such as photolithographic techniques. In particular examples, a target mold is formed from a silicon wafer and then one or more sides of the mold are coated with a target material, such as one or more metals.Type: ApplicationFiled: September 12, 2006Publication date: February 4, 2010Inventors: Thomas E. Cowan, Steven Malekos, Grant Korgan, Jesse Adams, Yasuhiko Sentoku, Nathalie Le Galloudec, Julien Fuchs
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Patent number: 7555102Abstract: In particular embodiments, the present disclosure provides systems and methods for imaging a subject using radiation emitted from a laser produced plasma generating by irradiating a target with a laser. In particular examples, the target includes at least one radiation enhancing component, such as a fluor, cap, or wire. In further examples, the target has a metal layer and an internal surface defining an internal apex, the internal apex of less than about 15 ?m, such as less than about 1 ?m. The targets may take a variety of shapes, including cones, pyramids, and hemispheres. Certain aspects of the present disclosure provide improved imaging of a subject, such as improved medical images of a radiation dose than typical conventional methods and systems.Type: GrantFiled: April 5, 2007Date of Patent: June 30, 2009Inventors: Nathalie Renard-Le Galloudec, Thomas E. Cowan, Yasuhiko Sentoku, Jennifer Rassuchine
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Publication number: 20040012864Abstract: A hollow tube having a pair of openings which have their respective different diameters and arm opposed each other is prepared. Then, a pulsed laser beam is introduced into the hollow tube from the larger opening thereof and then, reflected multiply on the inner wall surface of the hollow tube. The introduced pulsed laser beam is focused during the traveling for the smaller opening of the hollow tube to generate a focused laser beam. The thus obtained focused laser beam is output from the smaller opening of the hollow tube.Type: ApplicationFiled: August 21, 2002Publication date: January 22, 2004Applicant: OSAKA UNIVERSITYInventors: Kunioki Mima, Ryosuke Kodama, Tatsuhiko Yamanaka, Yoneyoshi Kitagawa, Kazuo Tanaka, Yasuhiko Sentoku
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Patent number: 6676264Abstract: A hollow tube having a pair of openings which have their respective different diameters and are opposed each other is prepared. Then, a pulsed laser beam is introduced into the hollow tube from the larger opening thereof and then, reflected multiply on the inner wall surface of the hollow tube. The introduced pulsed laser beam is focused during the traveling for the smaller opening of the hollow tube to generate a focused laser beam. The thus obtained focused laser beam is output from the smaller opening of the hollow tube.Type: GrantFiled: August 21, 2002Date of Patent: January 13, 2004Assignee: Osaka UniversityInventors: Kunioki Mima, Ryosuke Kodama, Tatsuhiko Yamanaka, Yoneyoshi Kitagawa, Kazuo Tanaka, Yasuhiko Sentoku