Patents by Inventor Akira Watazu

Akira Watazu 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: 20100075419
    Abstract: The present provides a biomaterial composed in part of a porous material having an internal structure that has been completely controlled so as to optimize living tissue infiltration or cell introduction, a method of manufacturing, and uses thereof, including bio-implant materials for artificial bones, artificial joints and artificial tooth roots, and cell culture supports; the biomaterial undergoes increased infiltration by living tissues and the like owing to the formation of a porous region in at least a portion of the material, wherein the porous region is a porous body having therein a group of oriented pores that has an orientation and is made up of pores whose size, shape and direction have been controlled to optimize living tissue infiltration or cell introduction, and also having formed therein connecting pores that link together the primary pores and enable the passage of bodily fluids and gas bubbles, and formed with a spatial configuration in which the oriented pores are not directly connected to
    Type: Application
    Filed: September 25, 2007
    Publication date: March 25, 2010
    Inventors: Masahiko Inagaki, Akira Watazu
  • Patent number: 6432142
    Abstract: The invention relates to a mold having split dies to be arranged in opposition about a substrate and an outer frame situated about the perimeter of the split dies, wherein the outer frame and split dies function as a wedge and move slidably so as to convert the load produced by a vertical uniaxial press into load applied from two opposing directions across the horizontal, the split dies move in such a way as to compress the titanium or titanium alloy substrate and uniformly press the side faces thereof so as to impart the required configuration to the substrate, and to artificial bone having high biological affinity produced by the mold.
    Type: Grant
    Filed: February 28, 2000
    Date of Patent: August 13, 2002
    Assignee: Japan as represented by Secretary of Agency of Industrial Science and Technology
    Inventors: Akira Kamiya, Akira Watazu, Katsuyoshi Naganuma, Jun Zhu
  • Patent number: 6387298
    Abstract: The present invention provides a novel orange light-emitting phosphorescent material that is non-toxic and chemically stable in air, and this invention relates to a Ti—CaO phosphorescent material, produced from a starting material of calcium oxide (CaO), or of calcium carbonate (CaCO3), calcium hydroxide(Ca(OH)2), calcium sulfate(CaSO4), calcium oxalate (CaC2O4), or other compound to be converted to CaO through heating in air, by a process of bringing this starting material into contact with metallic titanium (Ti) and conducting heat treatment thereof in vacuo or in an atmosphere that is not reactive with Ti such as argon gas, or by a process of mechanical alloying and the like of CaO and Ti.
    Type: Grant
    Filed: August 29, 2000
    Date of Patent: May 14, 2002
    Assignee: Agency of Industrial Science and Technology
    Inventors: Akira Kamiya, Jun Zhu, Akira Watazu, Katsuyoshi Naganuma