Patents by Inventor Mark M. Hasegawa

Mark M. Hasegawa 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: 20180051177
    Abstract: A black molecular adsorber coating (MAC-B) composition is provided that exhibits adsorptive capabilities and reduces the effects of optical path degradation and system performance degradation when formed into a black coating having low reflectivity. The coating can be used in stray light control applications or within light paths between optical systems to absorb light and reduce the effects of optical path degradation. The coating can be used in vacuum systems to adsorb molecular contaminants and to reduce vacuum pressure levels. The coating composition can be sprayed onto interior surfaces, such as optical cavities of cameras, telescopes, lasers, baffles, detectors systems, and electronics boxes to control performance degradation due to outgassed molecular contaminants.
    Type: Application
    Filed: July 24, 2017
    Publication date: February 22, 2018
    Inventors: NITHIN S. ABRAHAM, MARK M. HASEGAWA, SHARON A. STRAKA, JOHN C. PETRO
  • Publication number: 20120034384
    Abstract: A molecular adsorber coating for collecting and retaining outgassed molecular effluent may include a mass fraction of about 0.20 to about 0.40 of zeolite, a mass fraction of about 0.40 to about 0.80 of a binder, and a mass fraction of about 0.0 to about 0.30 of water. The mass ratio of the binder to the zeolite may be in a range of about 1.6 to about 2.4. The binder may comprise, on a mass basis, about 30 to about 40 percent particles of nonporous silica dispersed in a liquid phase.
    Type: Application
    Filed: August 3, 2011
    Publication date: February 9, 2012
    Applicant: United States of America as represented by the Administrator of the National Aeronautics and Spac
    Inventors: Sharon A. Straka, Wanda C. Peters, Jack J. Triolo, Mark M. Hasegawa, Kevin J. Novo-Gradac, Cory B. Miller, Nithin S. Abraham
  • Patent number: 6361876
    Abstract: A metal substrate such as bare or anodized aluminum or an aluminum alloy having an inorganic white paint thermal control coating on the substrate, the coating having low solar absorptance and high infrared emittance, such as a potassium silicate binder having zinc oxide particles distributed therein, and a fluoropolymer topcoat such as polytetrafluoroethylene on the inorganic white coating, the topcoat having substantially no significant effect on the optical properties of the thermal control coating and having substantial adhesion to such coating and improved resistance to darkening under ultraviolet exposure in the outer space environment.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: March 26, 2002
    Assignee: McDonnell Douglas Corporation
    Inventors: Henry W. Babel, Mark M. Hasegawa, Steven A. Daneman
  • Patent number: 6331357
    Abstract: An article is coated with a mixture of a high absorptance pigment, a low absorptance pigment, a low emittance material, and a high emittance binder. Each of the components of the coating are stable when exposed to a space environment. The amounts of the high absorptance pigment and the low absorptance pigment are selected to produce an absorptance of the coating of from about 0.20 to about 0.90, and the amount of the low emittance material is selected to produce an emittance of the coating of from about 0.25 to about 0.90. The low absorptance pigment is preferably a white pigment such as zinc oxide. The high absorptance pigment is preferably a black pigment such as cupric oxide, cobalt oxide, or manganese dioxide. The low emittance material is preferably a metal such as aluminum. The binder is preferably a ceramic such as potassium silicate.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: December 18, 2001
    Assignee: McDonnell Douglas Corporation
    Inventors: Mark M. Hasegawa, Steven A. Daneman, Ronaldo R. DeJesus, Henry W. Babel
  • Patent number: 5885658
    Abstract: A metal substrate such as bare or anodized aluminum or an aluminum alloy having an inorganic white paint thermal control coating on the substrate, said coating having low solar absorptance and high infrared emittance, such as a potassium silicate binder having zinc oxide particles distributed therein, and a fluoropolymer topcoat such as polytetrafluoroethylene on the inorganic white coating, the topcoat having substantially no significant effect on the optical properties of the thermal control coating and having substantial adhesion to such coating and improved resistance to darkening under ultraviolet exposure in the outer space environment.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: March 23, 1999
    Assignee: McDonnell Douglas Technologies, Inc.
    Inventors: Henry W. Babel, Mark M. Hasegawa, Steven A. Daneman
  • Patent number: 5401573
    Abstract: A metal substrate such as aluminum or an alloy thereof having an ultraviolet sensitive thermal control coating on the substrate such as an anodic coating or a white thermal control paint coating, and an ultraviolet degradation protective coating on the thermal control coating. The ultraviolet degradation protective coating can be an ultraviolet absorber such as quartz or an ultraviolet reflector such as aluminum oxide.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: March 28, 1995
    Assignee: McDonnell Douglas Corporation
    Inventors: Henry W. Babel, Mark M. Hasegawa, Steven A. Daneman