Patents by Inventor Johnny Chang

Johnny 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).

  • Publication number: 20100000124
    Abstract: A hygienic footwear cushion having a composition comprising bamboo charcoal soot and a footwear material and a method of manufacturing such footwear cushion are disclosed. The footwear cushion material is SEBE, other SEBE equivalent material, or other suitable material for manufacturing footwear cushion. The footwear cushion is a thong cover, a sling back strip, a heel shield, a sore spot patch, or a heel cup. The hygienic footwear cushion according to the current invention provides an improved ability to maintain dryness and obtains the property to be bacteria and odor free.
    Type: Application
    Filed: August 12, 2009
    Publication date: January 7, 2010
    Inventor: Shuo-Hsiu Johnny Chang
  • Publication number: 20100000123
    Abstract: A hygienic footwear cushion having a composition comprising bamboo charcoal soot and a footwear material and a method of manufacturing such footwear cushion are disclosed. The footwear cushion material is SEBE, other SEBE equivalent material, or other suitable material for manufacturing footwear cushion. The hygienic footwear cushion according to the current invention provides an improved ability to maintain dryness and obtains the property to be bacteria and odor free.
    Type: Application
    Filed: February 23, 2009
    Publication date: January 7, 2010
    Inventor: Shuo-Hsiu Johnny Chang
  • Publication number: 20090247369
    Abstract: A hygienic exercise equipment includes thermo plastic elastomer having a composition comprising bamboo charcoal powder, PVC, ZN-CA stabilizer, pour point depressant, ink and at least one of DOP and ATBC. Preferably, bamboo charcoal from 0.1% to 5%, PVC from 35% to 56%, ZN-CA stabilizer from 0.4% to 1.5%, pour point depressant from 0.5% to 1.5%, ink from 0% to 10%, and at least one of DOP and ATBC from 1.0% to 5%. The composition is mixed and tailored to various designs for different exercise equipment, different parts and different portion of the exercise equipment. The internal body in the weight trainer, due to being mixed with the solid powder, has an extremely high density ranging from 0.5 g/cm.sup.3 to 6 g/cm.sup.3, preferably ranging from 4 g/cm.sup.3 to 6 g/cm.sup.3, so the weight trainer can have a high weight, even if fitted into the internal body with small volume.
    Type: Application
    Filed: February 23, 2009
    Publication date: October 1, 2009
    Inventor: Shuo-Hsiu Johnny Chang
  • Patent number: 5734356
    Abstract: This invention discloses an improved construction for portable disk antenna. This construction mainly comprises a disk antenna body, an outer member, an inner member, and a base. The outer member may rotate over 360 degrees about a first axis relative to the base. The inner member is rotably fitted into the outer member. The disk antenna body is connected to the inner member such that the disk antenna body, together with the inner member, can be rotated with respect to the outer member within an appropriate angular range about a second axis perpendicular to the first axis. This invention is characterized by further comprising an azimuth calibrating device having an azimuth calibration scale formed thereon for calibrating the azimuth deviation of the disk antenna body before use according to the indication of a compass; and an elevation calibrating device having an elevation scale formed thereon for calibrating the elevation deviation of the disk antenna body according to the indication of a level instrument.
    Type: Grant
    Filed: June 7, 1996
    Date of Patent: March 31, 1998
    Assignee: RF-Link Systems, Inc.
    Inventor: Johnny Chang
  • Patent number: D442345
    Type: Grant
    Filed: April 10, 2000
    Date of Patent: May 15, 2001
    Assignee: Test Rite Products Corporation
    Inventors: Judy Lee, Johnny Chang
  • Patent number: D454419
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: March 12, 2002
    Assignee: Test Rite Products Corporation
    Inventors: Judy Lee, Johnny Chang