Patents by Inventor Rumiana Tzoneva

Rumiana Tzoneva 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).

  • Methods of solidifying low-boiling-point hydrocarbon and handling the same, and regeneration thereof
    Patent number: 6570045
    Abstract: Disclosed are a method of solidifying a low-boiling-point hydrocarbon, wherein the low-boiling-point hydrocarbon (including hydrocarbons which are gaseous at ordinary temperature) is brought into contact with a metal salt of an aliphatic carboxylic acid, and if necessary a high-boiling-point hydrocarbon, suspended in water, to form a solid aggregate substance, a method of handling the low-boiling-point hydrocarbon, wherein the solid aggregate substance is stored or transported, and a method of regenerating the low-boiling-point hydrocarbon, wherein the solid aggregate substance is decomposed by opening or heating, to obtain the low-boiling-point hydrocarbon. According to the methods, a wide variety of gaseous and highly volatile liquid hydrocarbons can be safely and easily solidified without using harmful reagent, and during storage, transportation, etc., the gaseous hydrocarbons and highly volatile liquids can be handled as a solid material.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: May 27, 2003
    Assignee: Agency of Industrial Science and Technology
    Inventors: Hiroshi Sakaguchi, Tomokazu Yoshimura, Rumiana Tzoneva, Takashi Masuda, Takahiro Sato, Akio Matsuda
  • Methods of solidifying low-boiling-point hydrocarbon and handling the same, and regeneration thereof
    Publication number: 20020133051
    Abstract: Disclosed are a method of solidifying a low-boiling-point hydrocarbon, wherein the low-boiling-point hydrocarbon (including hydrocarbons which are gaseous at ordinary temperature) is brought into contact with a metal salt of an aliphatic carboxylic acid, and if necessary a high-boiling-point hydrocarbon, suspended in water, to form a solid aggregate substance, a method of handling the low-boiling-point hydrocarbon, wherein the solid aggregate substance is stored or transported, and a method of regenerating the low-boiling-point hydrocarbon, wherein the solid aggregate substance is decomposed by opening or heating, to obtain the low-boiling-point hydrocarbon. According to the methods, a wide variety of gaseous and highly volatile liquid hydrocarbons can be safely and easily solidified without using harmful reagent, and during storage, transportation, etc., the gaseous hydrocarbons and highly volatile liquids can be handled as a solid material.
    Type: Application
    Filed: May 13, 2002
    Publication date: September 19, 2002
    Applicant: Secretary of Agency of Industrial Science and Technology
    Inventors: Hiroshi Sakaguchi, Tomokazu Yoshimura, Rumiana Tzoneva, Takashi Masuda, Takahiro Sato, Akio Matsuda
  • Methods of solidifying low-boiling-point hydrocarbon and handling the same, and regeneration thereof
    Patent number: 6417415
    Abstract: Disclosed are a method of solidifying a low-boiling-point hydrocarbon, wherein the low-boiling-point hydrocarbon (including hydrocarbons which are gaseous at ordinary temperature) is brought into contact with a metal salt of an aliphatic carboxylic acid, and if necessary a high-boiling-point hydrocarbon, suspended in water, to form a solid aggregate substance, a method of handling the low-boiling-point hydrocarbon, wherein the solid aggregate substance is stored or transported, and a method of regenerating the low-boiling-point hydrocarbon, wherein the solid aggregate substance is decomposed by opening or heating, to obtain the low-boiling-point hydrocarbon. According to the methods, a wide variety of gaseous and highly volatile liquid hydrocarbons can be safely and easily solidified without using harmful reagent, and during storage, transportation, etc., the gaseous hydrocarbons and highly volatile liquids can be handled as a solid material.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 9, 2002
    Assignee: Agency of Industrial Science and Technology
    Inventors: Hiroshi Sakaguchi, Tomokazu Yoshimura, Rumiana Tzoneva, Takashi Masuda, Takahiro Sato, Akio Matsuda