Patents by Inventor Tsukasa Mitsuta

Tsukasa Mitsuta 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).

  • Cleaning method of oil tank and cleaning device of same
    Patent number: 10130978
    Abstract: Crude oil is discharged from an oil tank. A nozzle is inserted into a support opening formed in advance on a roof of the oil tank. A cleaning liquid containing LCO is injected from the nozzle over the sludge accumulated inside the oil tank after the crude oil is discharged from the oil tank. The cleaning liquid in which the sludge is dissolved is discharged from the oil tank and is returned to the oil tank for recycle cleaning. Subsequently, the cleaning liquid in which the sludge is dissolved is discharged from the oil tank.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: November 20, 2018
    Assignees: SOFTARD INDUSTRIES CO., LTD., JXTG NIPPON OIL & ENERGY CORPORATION
    Inventors: Katsuhiko Kawakami, Guiqing Xu, Masayuki Kidokoro, Yasuo Uchida, Masanao Kato, Masanao Mitsuhata, Shouzou Sugihara, Tsukasa Mitsuta, Takayuki Nakazawa
  • CLEANING METHOD OF OIL TANK AND CLEANING DEVICE OF SAME
    Publication number: 20160107206
    Abstract: Crude oil is discharged from an oil tank. A nozzle is inserted into a support opening formed in advance on a roof of the oil tank. A cleaning liquid containing LCO is injected from the nozzle over the sludge accumulated inside the oil tank after the crude oil is discharged from the oil tank. The cleaning liquid in which the sludge is dissolved is discharged from the oil tank and is returned to the oil tank for recycle cleaning. Subsequently, the cleaning liquid in which the sludge is dissolved is discharged from the oil tank.
    Type: Application
    Filed: October 16, 2015
    Publication date: April 21, 2016
    Inventors: Katsuhiko Kawakami, Guiqing Xu, Masayuki Kidokoro, Yasuo Uchida, Masanao Kato, Masanao Mitsuhata, Shouzou Sugihara, Tsukasa Mitsuta, Takayuki Nakazawa