Patents by Inventor Xiangxin Bi
Xiangxin Bi 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).
-
Patent number: 9939579Abstract: Monolithic optical structures include a plurality of layer with each layer having an isolated optical pathway confined within a portion of the layer. The monolithic optical structure can be used as an optical fiber preform. Alternatively or additionally, the monolithic optical structure can include integrated optical circuits within one or more layers of the structure. Monolithic optical structures can be formed by performing multiple passes of a substrate through a flowing particle stream. The deposited particles form an optical material following consolidation. Flexible optical fibers include a plurality of independent light channels extending along the length of the optical fiber. The fibers can be pulled from an appropriate preform.Type: GrantFiled: February 21, 2006Date of Patent: April 10, 2018Assignee: NeoPhotonics CorporationInventors: Michael A. Bryan, Xiangxin Bi
-
Patent number: 9163308Abstract: Light reactive deposition uses an intense light beam to form particles that are directly coated onto a substrate surface. In some embodiments, a coating apparatus comprising a noncircular reactant inlet, optical elements forming a light path, a first substrate, and a motor connected to the apparatus. The reactant inlet defines a reactant stream path. The light path intersects the reactant stream path at a reaction zone with a product stream path continuing from the reaction zone. The substrate intersects the product stream path. Also, operation of the motor moves the first substrate relative to the product stream. Various broad methods are described for using light driven chemical reactions to produce efficiently highly uniform coatings.Type: GrantFiled: July 30, 2009Date of Patent: October 20, 2015Assignee: NanoGram CorporationInventors: Xiangxin Bi, Ronald J. Mosso, Shivkumar Chiruvolu, Sujeet Kumar, James T. Gardner, Seung M. Lim, William E. McGovern
-
Publication number: 20150037513Abstract: High rate deposition methods comprise depositing a powder coating from a product flow. The product flow results from a chemical reaction within the flow. Some of the powder coatings consolidate under appropriate conditions into an optical coating. The substrate can have a first optical coating onto which the powder coating is placed. The resulting optical coating following consolidation can have a large index-of-refraction difference with the underlying first optical coating, high thickness and index-of-refraction uniformity across the substrate and high thickness and index-of-refraction uniformity between coatings formed on different substrates under equivalent conditions. In some embodiments, the deposition can result in a powder coating of at least about 100 nm in no more than about 30 minutes with a substrate having a surface area of at least about 25 square centimeters.Type: ApplicationFiled: September 17, 2014Publication date: February 5, 2015Inventors: Xiangxin Bi, Herman A. Lopez, Prasad Narasimha, Eric Euvrard, Ronald J. Mosso
-
Patent number: 8865271Abstract: High rate deposition methods comprise depositing a powder coating from a product flow. The product flow results from a chemical reaction within the flow. Some of the powder coatings consolidate under appropriate conditions into an optical coating. The substrate can have a first optical coating onto which the powder coating is placed. The resulting optical coating following consolidation can have a large index-of-refraction difference with the underlying first optical coating, high thickness and index-of-refraction uniformity across the substrate and high thickness and index-of-refraction uniformity between coatings formed on different substrates under equivalent conditions. In some embodiments, the deposition can result in a powder coating of at least about 100 nm in no more than about 30 minutes with a substrate having a surface area of at least about 25 square centimeters.Type: GrantFiled: May 26, 2004Date of Patent: October 21, 2014Assignee: NeoPhotonics CorporationInventors: Xiangxin Bi, Herman A. Lopez, Prasad Narasimha, Eric Euvrard, Ronald J. Mosso
-
Patent number: 8673407Abstract: Three dimensional optical structures are described that can have various integrations between optical devices within and between layers of the optical structure. Optical turning elements can provide optical pathways between layers of optical devices. Methods are described that provide for great versatility on contouring optical materials throughout the optical structure. Various new optical devices are enabled by the improved optical processing approaches.Type: GrantFiled: July 28, 2005Date of Patent: March 18, 2014Assignee: NeoPhotonics CorporationInventors: Xiangxin Bi, Elizabeth Anne Nevis, Ronald J. Mosso, Michael Edward Chapin, Shivkumar Chiruvolu, Sardar Hyat Khan, Sujeet Kumar, Herman Adrian Lopez, Nguyen Tran The Huy, Craig Richard Horne, Michael A. Bryan, Eric Euvrard
-
Patent number: 8568684Abstract: Methods are described that have the capability of producing submicron/nanoscale particles, in some embodiments dispersible, at high production rates. In some embodiments, the methods result in the production of particles with an average diameter less than about 75 nanometers that are produced at a rate of at least about 35 grams per hour. In other embodiments, the particles are highly uniform. These methods can be used to form particle collections and/or powder coatings. Powder coatings and corresponding methods are described based on the deposition of highly uniform submicron/nanoscale particles.Type: GrantFiled: January 13, 2010Date of Patent: October 29, 2013Assignee: NanoGram CorporationInventors: Xiangxin Bi, Nobuyuki Kambe, James T. Gardner, Ronald J. Mosso, Shivkumar Chiruvolu, Sujeet Kumar, William E. McGovern
-
Publication number: 20120244060Abstract: Methods are described that have the capability of producing submicron/nanoscale particles, in some embodiments dispersible, at high production rates. In some embodiments, the methods result in the production of particles with an average diameter less than about 75 nanometers that are produced at a rate of at least about 35 grams per hour. In other embodiments, the particles are highly uniform. These methods can be used to form particle collections and/or powder coatings. Powder coatings and corresponding methods are described based on the deposition of highly uniform submicron/nanoscale particles.Type: ApplicationFiled: January 13, 2010Publication date: September 27, 2012Inventors: Xiangxin Bi, Nobuyuki Kambe, Craig R. Horne, James T. Gardner, Ronald J. Mosso, Shivkumar Chiruvolu, Sujeet Kumar, William E. McGovern, Pierre J. DeMascarel, Robert B. Lynch
-
Publication number: 20120012032Abstract: Methods are described that have the capability of producing submicron/nanoscale particles, in some embodiments dispersible, at high production rates. In some embodiments, the methods result in the production of particles with an average diameter less than about 75 nanometers that are produced at a rate of at least about 35 grams per hour. In other embodiments, the particles are highly uniform. These methods can be used to form particle collections and/or powder coatings. Powder coatings and corresponding methods are described based on the deposition of highly uniform submicron/nanoscale particles.Type: ApplicationFiled: September 22, 2011Publication date: January 19, 2012Inventors: Xiangxin Bi, Nobuyuki Kambe, Craig R. Horne, James T. Gardner, Ronald J. Mosso, Shivkumar Chiruvolu, Sujeet Kumar, William E. McGovern, Pierre J. DeMascarel, Robert B. Lynch
-
Patent number: 8048523Abstract: Nanoscale UV absorbing particles are described that have high UV absorption cross sections while being effectively transparent to visible light. These particles can be used to shield individuals from harmful ultraviolet radiation. These particles can also be used in industrial processing especially to produce solid state electronic devices by creating edges of photoresist material with a high aspect ratio. The UV absorbing particles can also be used as photocatalysts that become strong oxidizing agents upon exposure to UV light. Laser pyrolysis provides an efficient method for the production of suitable particles.Type: GrantFiled: May 26, 2009Date of Patent: November 1, 2011Assignee: NanoGram CorporationInventors: Nobuyuki Kambe, Xiangxin Bi
-
Patent number: 7905114Abstract: Optical fiber preforms can comprise a glass preform structure with an inner cavity. A powder can be placed within the inner cavity having an average primary particle size of less than about one micron. The powder can be in the form of an unagglomerated particles or a powder coating with a degree of agglomeration or hard fusing ranging from none to significant amounts as long as the primary particles are visible in a micrograph. Powders can be placed within a preform structure by forming a slurry with a dispersion of submicron/nanoscale particles within a cavity within the preform. In other embodiments, a powder coating is formed within a preform structure by depositing the powder coating directly from a reaction product stream. The formation of the powder coating can be formed within the reaction chamber or outside of the reaction chamber by flowing the product particle stream through a conduit leading to the preform structure. In additional embodiments, a powder coating is placed on an insert, e.g.Type: GrantFiled: April 12, 2004Date of Patent: March 15, 2011Assignee: NeoPhotonics CorporationInventors: Craig R. Horne, Jesse S. Jur, Ronald J. Mosso, Eric H. Euvrard, Xiangxin Bi
-
Publication number: 20100209328Abstract: Methods are described that have the capability of producing submicron/nanoscale particles, in some embodiments dispersible, at high production rates. In some embodiments, the methods result in the production of particles with an average diameter less than about 75 nanometers that are produced at a rate of at least about 35 grams per hour. In other embodiments, the particles are highly uniform. These methods can be used to form particle collections and/or powder coatings. Powder coatings and corresponding methods are described based on the deposition of highly uniform submicron/nanoscale particles.Type: ApplicationFiled: January 13, 2010Publication date: August 19, 2010Inventors: Xiangxin Bi, Nobuyuki Kambe, Craig R. Horne, James T. Gardner, Ronald J. Mosso, Shivkumar Chiruvolu, Sujeet Kumar, William E. McGovern, Pierre J. DeMascarel, Robert B. Lynch
-
Patent number: 7776406Abstract: Nanoscale particles, particle coatings/particle arrays and corresponding consolidated materials are described based on an ability to vary the composition involving a wide range of metal and/or metalloid elements and corresponding compositions. In particular, metalloid oxides and metal-metalloid compositions are described in the form of improved nanoscale particles and coatings formed from the nanoscale particles. Compositions comprising rare earth metals and dopants/additives with rare earth metals are described. Complex compositions with a range of host compositions and dopants/additives can be formed using the approaches described herein. The particle coating can take the form of particle arrays that range from collections of disbursable primary particles to fused networks of primary particles forming channels that reflect the nanoscale of the primary particles. Suitable materials for optical applications are described along with some optical devices of interest.Type: GrantFiled: October 19, 2007Date of Patent: August 17, 2010Assignee: NeoPhotonics CorporationInventors: Craig R. Horne, Pierre J. DeMascarel, Christian C. Honeker, Benjamin Chaloner-Gill, Herman A. Lopez, Xiangxin Bi, Ronald J. Mosso, William E. McGovern, James T. Gardner, Sujeet Kumar, James A. Gilliam, Vince Pham, Eric Euvrard, Shivkumar Chiruvolu, Jesse Jur
-
Patent number: 7722787Abstract: Metal vanadium oxide particles have been produced with an average diameter less than about 500 nm. The particles are produced from nanocrystalline vanadium oxide particles. Silver vanadium oxide particles, for example, can be formed by the heat treatment of a mixture of nanoscale vanadium oxide and a silver compound. Other metal vanadium oxide particles can be produced by similar processes. The metal vanadium oxide particles have very uniform properties.Type: GrantFiled: January 9, 2001Date of Patent: May 25, 2010Assignee: Greatbatch Ltd.Inventors: Craig R. Horne, Sujeet Kumar, James P. Buckley, Xiangxin Bi
-
Publication number: 20090288601Abstract: Light reactive deposition uses an intense light beam to form particles that are directly coated onto a substrate surface. In some embodiments, a coating apparatus comprising a noncircular reactant inlet, optical elements forming a light path, a first substrate, and a motor connected to the apparatus. The reactant inlet defines a reactant stream path. The light path intersects the reactant stream path at a reaction zone with a product stream path continuing from the reaction zone. The substrate intersects the product stream path. Also, operation of the motor moves the first substrate relative to the product stream. Various broad methods are described for using light driven chemical reactions to produce efficiently highly uniform coatings.Type: ApplicationFiled: July 30, 2009Publication date: November 26, 2009Inventors: Xiangxin Bi, Ronald J. Mosso, Shivkumar Chiruvolu, Sujeet Kumar, James T. Gardner, Seung M. Lim, William E. McGovern
-
Publication number: 20090255189Abstract: A collection of nanoparticles of aluminum oxide have been produced by laser pyrolysis have a very narrow distribution of particle diameters. Preferably, the distribution of particle diameters effectively does not have a tail such that almost no particles have a diameter greater than about 4 times the average diameter. The pyrolysis preferably is performed by generating a molecular stream containing an aluminum precursor, an oxidizing agent and an infrared absorber. The pyrolysis can be performed with an infrared laser such as a CO2 laser.Type: ApplicationFiled: August 19, 1998Publication date: October 15, 2009Applicant: NanoGram CorporationInventors: Sujeet Kumar, Hariklia Reitz, Xiangxin Bi, Nobuyuki Kambe
-
Publication number: 20090233098Abstract: Nanoscale UV absorbing particles are described that have high UV absorption cross sections while being effectively transparent to visible light. These particles can be used to shield individuals from harmful ultraviolet radiation. These particles can also be used in industrial processing especially to produce solid state electronic devices by creating edges of photoresist material with a high aspect ratio. The UV absorbing particles can also be used as photocatalysts that become strong oxidizing agents upon exposure to UV light. Laser pyrolysis provides an efficient method for the production of suitable particles.Type: ApplicationFiled: May 26, 2009Publication date: September 17, 2009Inventors: Nobuyuki Kambe, Xiangxin Bi
-
Patent number: 7575784Abstract: Light reactive deposition uses an intense light beam to form particles that are directly coated onto a substrate surface. In preferred embodiments, a coating apparatus comprising a noncircular reactant inlet, optical elements forming a light path, a first substrate, and a motor connected to the apparatus. The reactant inlet defines a reactant stream path. The light path intersects the reactant stream path at a reaction zone with a product stream path continuing from the reaction zone. The substrate intersects the product stream path. Also, operation of the motor moves the first substrate relative to the product stream. Various broad methods are described for using light driven chemical reactions to produce efficiently highly uniform coatings.Type: GrantFiled: November 17, 2000Date of Patent: August 18, 2009Assignee: NanoGram CorporationInventors: Xiangxin Bi, Ronald J. Mosso, Shivkumar Chiruvolu, Sujeet Kumar, James T. Gardner, Seung M. Lim, William E. McGovern
-
Patent number: 7507382Abstract: A collection of zinc oxide nanoparticles have been produced by laser pyrolysis. The zinc oxide nanoparticles have average particle diameters of less than about 95 nm and a very narrow particle size distribution. The laser pyrolysis process is characterized by the production of a reactant stream within the reaction chamber, where the reactant stream includes a zinc precursor and other reactants. The zinc precursor can be delivered as an aerosol.Type: GrantFiled: October 3, 2001Date of Patent: March 24, 2009Assignee: NanoGram CorporationInventors: Hariklia Dris Reitz, Sujeet Kumar, Xiangxin Bi, Nobuyuki Kambe, Ronald J. Mosso, James T. Gardner
-
Publication number: 20090075083Abstract: Methods are described that have the capability of producing submicron/nanoscale particles, in some embodiments dispersible, at high production rates. In some embodiments, the methods result in the production of particles with an average diameter less than about 75 nanometers that are produced at a rate of at least about 35 grams per hour. In other embodiments, the particles are highly uniform. These methods can be used to form particle collections and/or powder coatings. Powder coatings and corresponding methods are described based on the deposition of highly uniform submicron/nanoscale particles.Type: ApplicationFiled: May 13, 2008Publication date: March 19, 2009Inventors: Xiangxin Bi, Nobuyuki Kambe, Craig R. Horne, James T. Gardner, Ronald J. Mosso, Shivkumar Chiruvolu, Sujeet Kumar, William E. McGovern, Pierre J. DeMascarel, Robert B. Lynch
-
Patent number: 7423512Abstract: A collection of zinc oxide nanoparticles have been produced by laser pyrolysis. The zinc oxide nanoparticles have average particle diameters of less than about 95 nm and a very narrow particle size distribution. The laser pyrolysis process is characterized by the production of a reactant stream within the reaction chamber, where the reactant stream includes a zinc precursor and other reactants. The zinc precursor can be delivered as an aerosol.Type: GrantFiled: March 10, 1999Date of Patent: September 9, 2008Assignee: NanoGram CorporationInventors: Hariklia Dris Reitz, Sujeet Kumar, Xiangxin Bi, Nobuyuki Kambe