Patents by Inventor Hidehiro Ilzuka

Hidehiro Ilzuka 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).

  • Boiling Water Nuclear Plant and Method of Reducing Dose in Turbine System
    Publication number: 20110286568
    Abstract: An adsorbing substance made of a material having an acid center in its molecular frame is installed in a passage for steam generated in a reactor pressure vessel 1. The adsorbing substance adsorbs and holds N-16 compound for decay. Therefore, the amount of N-16 entering into a turbine system is decreased and dose in the turbine system can be reduced.
    Type: Application
    Filed: May 23, 2011
    Publication date: November 24, 2011
    Applicant: Hitachi-GE Nuclear Energy, Ltd.
    Inventors: Yuko HINO, Naoshi Usui, Hidehiro Ilzuka
  • Moisture removal device and method thereof for internal combustion engine use exhaust gas cleaning device
    Patent number: 6823659
    Abstract: A moisture removal device for an internal combustion engine use exhaust gas purifying device with a trapped moisture amount estimation means which estimates amount of moisture exhausted from an internal combustion engine and trapped in the catalyst, a judgement means which judges whether the estimated value of the trapped moisture amount exceeds a predetermined amount, and means for controlling removal of the moisture trapped in the catalyst, wherein when the estimated value of moisture trapped in the catalyst exceeds the predetermined value, a control of removing the moisture in the catalyst is performed. Whereby, since the moisture trapped by the catalyst can be removed and a possible elution of the catalyst components can be prevented, reduction of exhaust gas purifying performance of the catalyst can be prevented.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: November 30, 2004
    Assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd.
    Inventors: Toshifumi Hiratsuka, Norihiro Shinotsuka, Osamu Kuroda, Yuichi Kitahara, Takeshi Inoue, Ryouta Doi, Hidehiro Ilzuka
  • Moisture removal device and method thereof for internal combustion engine use exhaust gas cleaning device
    Publication number: 20030172646
    Abstract: A moisture removal device for an internal combustion engine use exhaust gas purifying device with a trapped moisture amount estimation means which estimates amount of moisture exhausted from an internal combustion engine and trapped in the catalyst, a judgement means which judges whether the estimated value of the trapped moisture amount exceeds a predetermined amount, and means for controlling removal of the moisture trapped in the catalyst, wherein when the estimated value of moisture trapped in the catalyst exceeds the predetermined value, a control of removing the moisture in the catalyst is performed. Whereby, since the moisture trapped by the catalyst can be removed and a possible elution of the catalyst components can be prevented, reduction of exhaust gas purifying performance of the catalyst can be prevented.
    Type: Application
    Filed: January 21, 2003
    Publication date: September 18, 2003
    Applicant: Hitachi, Ltd. and Hitachi Car Engineering Co., Ltd
    Inventors: Toshifumi Hiratsuka, Norihiro Shinotsuka, Osamu Kuroda, Yuichi Kitahara, Takeshi Inoue, Ryouta Doi, Hidehiro Ilzuka