Patents by Inventor Hirotoshi Ishimaru
Hirotoshi Ishimaru 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).
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Patent number: 8496890Abstract: In a pretreatment apparatus for transferring and mixing a specimen liquid and a reagent in a reagent reservoir, comprising containers for holding the specimen liquid and the reagent, flow paths connecting the containers in series, and a dialysis flow path including a dialysis membrane facing to the flow path, the mixing is brought about by transferring the liquid from the containers to the flow paths and a return by stoppage of transferring the liquid, and subsequently the liquid is made flow into the dialysis flow path.Type: GrantFiled: January 18, 2007Date of Patent: July 30, 2013Assignee: Hitachi High-Technologies CorporationInventors: Hirotoshi Ishimaru, Hajime Kato, Yasuhiko Sasaki, Shinichi Fukuzono
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Patent number: 7654232Abstract: A hydrogen engine system for driving an engine with hydrogen gases as a fuel comprises a hydrogenated liquid fuel tank, which holds a hydrogenated liquid fuel in a liquid phase, a preheater, to which the hydrogenated liquid fuel and a dehydrogenated fuel from the hydrogen feed unit are transported and which preheats the hydrogenated liquid fuel owing to heat exchange, an vaporizer, to which the hydrogenated liquid fuel as preheated and exhaust gases of the engine are transported and which heats the hydrogenated liquid fuel to put the same in a vapor phase, and a hydrogen feed unit, to which the hydrogenated liquid fuel as vaporized and exhaust gases of the engine are transported and which generates hydrogen gases owing to dehydrogenation to transport the same to the engine.Type: GrantFiled: October 3, 2007Date of Patent: February 2, 2010Assignee: Hitachi, Ltd.Inventors: Hirotoshi Ishimaru, Tetsuro Miyamoto, Takao Ishikawa, Atsushi Shimada, Masatoshi Sugimasa
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Publication number: 20080110420Abstract: A hydrogen engine system for driving an engine with hydrogen gases as a fuel comprises a hydrogenated liquid fuel tank, which holds a hydrogenated liquid fuel in a liquid phase, a preheater, to which the hydrogenated liquid fuel and a dehydrogenated fuel from the hydrogen feed unit are transported and which preheats the hydrogenated liquid fuel owing to heat exchange, an vaporizer, to which the hydrogenated liquid fuel as preheated and exhaust gases of the engine are transported and which heats the hydrogenated liquid fuel to put the same in a vapor phase, and a hydrogen feed unit, to which the hydrogenated liquid fuel as vaporized and exhaust gases of the engine are transported and which generates hydrogen gases owing to dehydrogenation to transport the same to the engine.Type: ApplicationFiled: October 3, 2007Publication date: May 15, 2008Inventors: Hirotoshi Ishimaru, Tetsuro Miyamoto, Takao Ishikawa, Atsushi Shimada, Masatoshi Sugimasa
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Publication number: 20070178017Abstract: In a pretreatment apparatus for transferring and mixing a specimen liquid and a reagent in a reagent reservoir, comprising containers for holding the specimen liquid and the reagent, flow paths connecting the containers in series, and a dialysis flow path including a dialysis membrane facing to the flow path, the mixing is brought about by transferring the liquid from the containers to the flow paths and a return by stoppage of transferring the liquid, and subsequently the liquid is made flow into the dialysis flow path.Type: ApplicationFiled: January 18, 2007Publication date: August 2, 2007Inventors: Hirotoshi Ishimaru, Hajime Kato, Yasuhiko Sasaki, Shinichi Fukuzono
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Publication number: 20060073584Abstract: A chemical analyzing apparatus accommodates therein a structure for retaining a sample and reagents. A detecting mechanism detects the sample after reaction with a reagent. After or during extraction of a biological substance from the sample in the structure, a temperature of a fluid in a space around the structure is controlled to a value which is suitable for enzyme.Type: ApplicationFiled: September 30, 2005Publication date: April 6, 2006Inventors: Shigeyuki Sasaki, Yoshihiro Nagaoka, Hirotoshi Ishimaru, Nobuyuki Maki, Toshiaki Yokobayashi, Michihiro Saito, Taisaku Seino
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Patent number: 6371724Abstract: At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating shaft 2 within a casing 1 and having a vaned diffuser 4 or volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the vane leading edge of the diffuser 4 or radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the diffuser 4 or the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.Type: GrantFiled: May 23, 2001Date of Patent: April 16, 2002Assignee: Hitachi, Ltd.Inventors: Yoshihiro Nagaoka, Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki, Yoshiharu Ueyama, Tetuya Yoshida
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Patent number: 6364607Abstract: At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating shaft 2 within a casing 1 and having a vaned diffuser 4 or volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the vane leading edge of the diffuser 4 or radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the diffuser 4 or the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.Type: GrantFiled: May 14, 2001Date of Patent: April 2, 2002Assignee: Hitachi, Ltd.Inventors: Yoshihiro Nagaoka, Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki, Yoshiharu Ueyama, Tetuya Yoshida
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Patent number: 6312222Abstract: At a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating shaft 2 within a casing 1 and having a volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.Type: GrantFiled: March 23, 2000Date of Patent: November 6, 2001Assignee: Hitachi, Ltd.Inventors: Yoshihiro Nagaoka, Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki, Yoshiharu Ueyama, Tetuya Yoshida
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Publication number: 20010036404Abstract: At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating shaft 2 within a casing 1 and having a vaned diffuser 4 or volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the vane leading edge of the diffuser 4 or radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the diffuser 4 or the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.Type: ApplicationFiled: May 23, 2001Publication date: November 1, 2001Inventors: Yoshihiro Nagaoka, Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki, Yoshiharu Ueyama, Tetuya Yoshida
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Publication number: 20010033792Abstract: At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating shaft 2 within a casing 1 and having a vaned diffuser 4 or volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the vane leading edge of the diffuser 4 or radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the diffuser 4 or the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.Type: ApplicationFiled: May 14, 2001Publication date: October 25, 2001Inventors: Yoshihiro Nagaoka, Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki, Yoshiharu Ueyama, Tetuya Yoshida
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Patent number: 6290460Abstract: At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating. shaft 2 within a casing 1 and having a vaned diffuser 4 or volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the vane leading edge of the diffuser 4 or radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the diffuser 4 or the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.Type: GrantFiled: August 11, 2000Date of Patent: September 18, 2001Assignee: Hitachi, Ltd.Inventors: Yoshihiro Nagaoka, Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki, Yoshiharu Ueyama, Tetuya Yoshida
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Patent number: 6139266Abstract: At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating shaft 2 within a casing 1 and having a vaned diffuser 4 or volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the vane leading edge of the diffuser 4 or radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the diffuser 4 or the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.Type: GrantFiled: September 16, 1999Date of Patent: October 31, 2000Assignee: Hitachi, Ltd.Inventors: Yoshihiro Nagaoka, Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki, Yoshiharu Ueyama, Tetuya Yoshida
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Patent number: 5971705Abstract: At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating shaft 2 within a casing 1 and having a vaned diffuser 4 or volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the vane leading edge of the diffuser 4 or radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the diffuser 4 or the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.Type: GrantFiled: October 28, 1998Date of Patent: October 26, 1999Assignee: Hitachi, Ltd.Inventors: Yoshihiro Nagaoka, Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki, Yoshiharu Ueyama, Tetuya Yoshida
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Patent number: 5857834Abstract: At a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating shaft 2 within a casing 1 and having a volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the leading edge of the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.Type: GrantFiled: October 31, 1996Date of Patent: January 12, 1999Assignee: Hitachi, Ltd.Inventors: Yoshihiro Nagaoka, Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki, Yoshiharu Ueyama, Tetuya Yoshida
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Patent number: 5595473Abstract: At a vaned diffuser or a volute casing of a centrifugal fluid machine, pressure pulsation and vibrating forces acting upon the diffuser or the volute casing are mitigated or cancelled so as to abate the noise from the centrifugal fluid machine. The fluid machine having an impeller 3 rotating about a rotating shaft 2 within a casing 1 and having a vaned diffuser 4 or volute 12 fixed to the casing 1 is constructed such that radius of the vane trailing edge of the impeller 3 and radius of the vane leading edge of the diffuser 4 or radius of the volute tongue is varied in the direction of axis of rotation and inclinations, on a meridional plane, of the vane trailing edge of the impeller 3 and the vane leading edge of the diffuser 4 or the volute tongue are set in the same orientation, thereby reduction in head and efficiency or occurrence of an axial thrust may be restrained to the extent possible to optimally abate the noise and pressure pulsation of the centrifugal fluid machine.Type: GrantFiled: October 17, 1994Date of Patent: January 21, 1997Assignee: Hitachi, Ltd.Inventors: Yoshihiro Nagaoka, Sadashi Tanaka, Yukiji Iwase, Michiaki Ida, Hirotoshi Ishimaru, Saburo Iwasaki, Yoshiharu Ueyama, Tetuya Yoshida