Patents by Inventor Kevin M. Chen

Kevin M. Chen 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).

  • Publication number: 20250022570
    Abstract: The present disclosure relates to devices and processes for monitoring attributes of a user's physical activity (e.g., workout) or inactivity, and to user interfaces (e.g., an activity indicator) for displaying the same.
    Type: Application
    Filed: September 26, 2024
    Publication date: January 16, 2025
    Inventors: Jay BLAHNIK, Gary Ian BUTCHER, Kevin Will CHEN, David Chance GRAHAM, Daniel S. KEEN, Justin Shane RUSHING, T. Allan SHORTLIDGE, Anton M. DAVYDOV, Alan C. DYE, Jonathan P. IVE, Zachery KENNEDY, Zachury MINJACK, Dennis S. PARK, Brian SCHMITT
  • Patent number: 7190853
    Abstract: A system for dispersion compensation is provided including a plurality of optical cavities with each including a specific resonant frequency and resonant linewidth. At least one coupling element interconnects the optical cavities. The at least one coupling element defines the coupling strength between the cavities. The optical cavities are interconnected with the at least one coupled element that forms a multi-cavity structure. The multi-cavity structure generates appropriate dispersion properties for dispersion compensation purposes.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: March 13, 2007
    Assignee: Massachusetts Institute of Technology
    Inventors: John D. Joannopoulos, Shanhui Fan, Michal Lispon, Kevin M. Chen, Lionel C. Kimerling
  • Patent number: 6846509
    Abstract: A system for producing Erbium Oxide thin films with increased photoluminescence. The system includes a depositing stage for forming Erbium Oxide molecules by reacting Erbium sputtered atoms with O2 in a gas phase and creating the Erbium Oxide thin film by depositing the Erbium Oxide molecules on a substrate coated with Silicon Oxide. The system further includes an annealing stage for annealing the Erbium Oxide thin films by utilizing a low temperature treatment for a specified amount of time and temperature followed by a high temperature treatment for another specified amount of time and temperature, wherein the crystallinity of the thin films has improved.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: January 25, 2005
    Assignee: Massachusetts Institute of Technology
    Inventors: Kevin M. Chen, Lionel C. Kimerling
  • Publication number: 20040224082
    Abstract: A system for producing Erbium Oxide thin films with increased photoluminescence. The system includes a depositing stage for forming Erbium Oxide molecules by reacting Erbium sputtered atoms with O2 in a gas phase and creating the Erbium Oxide thin film by depositing the Erbium Oxide molecules on a substrate coated with Silicon Oxide. The system further includes an annealing stage for annealing the Erbium Oxide thin films by utilizing a low temperature treatment for a specified amount of time and temperature followed by a high temperature treatment for another specified amount of time and temperature, wherein the crystallinity of the thin films has improved.
    Type: Application
    Filed: November 21, 2001
    Publication date: November 11, 2004
    Inventors: Kevin M. Chen, Lionel C. Kimerling
  • Patent number: 6624945
    Abstract: An electromagnetic wavelength filter that allows the transmission of electromagnetic energy within a narrow range of wavelengths while reflecting incident electromagnetic energy at other wavelengths. The filter includes at least one cavity region; and at least two reflectors surrounding the at least one cavity region, at least one of the reflectors being an omni-directional reflector. The omni-directional reflector includes a structure with a surface and an index of refraction variation perpendicular to the surface, and the omni-directional reflector is specifically configured to exhibit high omni-directional reflection for a predetermined range of frequencies of incident electromagnetic energy for any angle of incidence and any polarization.
    Type: Grant
    Filed: February 12, 2001
    Date of Patent: September 23, 2003
    Assignee: Massachusetts Institute of Technology
    Inventors: Shanhui Fan, John D. Joannopoulos, George B. Kenney, Michal Lipson, Kevin M. Chen, Lionel C Kimerling
  • Publication number: 20030030870
    Abstract: A system for dispersion compensation is provided including a plurality of optical cavities with each including a specific resonant frequency and resonant linewidth. At least one coupling element interconnects the optical cavities. The at least one coupling element defines the coupling strength between the cavities. The optical cavities are interconnected with the at least one coupled element that forms a multi-cavity structure. The multi-cavity structure generates appropriate dispersion properties for dispersion compensation purposes.
    Type: Application
    Filed: June 25, 2002
    Publication date: February 13, 2003
    Inventors: John D. Joannopoulos, Shanhui Fan, Michal Lispon, Kevin M. Chen, Lionel C. Kimerling
  • Publication number: 20020135877
    Abstract: An electromagnetic wavelength filter that allows the transmission of electromagnetic energy within a narrow range of wavelengths while reflecting incident electromagnetic energy at other wavelengths. The filter includes at least one cavity region; and at least two reflectors surrounding the at least one cavity region, at least one of the reflectors being an omni-directional reflector. The omni-directional reflector includes a structure with a surface and an index of refraction variation perpendicular to the surface, and the omni-directional reflector is specifically configured to exhibit high omni-directional reflection for a predetermined range of frequencies of incident electromagnetic energy for any angle of incidence and any polarization.
    Type: Application
    Filed: February 12, 2001
    Publication date: September 26, 2002
    Inventors: Shanhui Fan, John D. Joannopoulos, George B. Kenney, Michal Lipson, Kevin M. Chen, Lionel C. Kimerling