Patents Assigned to Hitachi Plant Technologies,Ltd.
  • Patent number: 8628953
    Abstract: In order to make a process of capturing and testing air-borne microorganisms more convenient and quick, a capturing device which comprises the capturing carrier comprising a polymer which is in a gel phase at the time of capturing the microorganisms but undergoes a phase transition under heating to a sol phase at the temperature at or less than 40° C. (especially in the temperature range between 15° C. and 37° C.), and a vessel to contain the capturing carrier is used. Further, by comprising a test reagent in the polymer, the test reagent can be eluted upon said phase transition from a gel phase to a sol phase. By heating the capturing carrier, a phase transition to a sol phase can occur at or less than 40° C. As such, since recovery of microorganisms and addition of a test reagent to the microorganisms can be carried out simultaneously, the process can be simplified and the process time can be shortened.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: January 14, 2014
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Noe Osato, Ryusuke Gotoda, Satoshi Ozawa, Hideyuki Noda, Masahiro Okanojo
  • Publication number: 20140011221
    Abstract: The sample container has a two-layer membrane filter comprising a first layer as an upper layer serving as a hydrophilic membrane filter and a hydrophobic membrane filter as an underlying second layer capable of filtering an aqueous solution without the use of a wetting agent and by means of a formed negative pressure. Using this sample container, a large amount of an aqueous sample solution is filtered by means of a negative pressure formed by a suction portion to capture microbes in the aqueous sample solution by the hydrophilic membrane filter. Then, the negative pressure is restored to normal pressure, and a microbial dissolution solution is then added to the membrane filter to retain the microbial dissolution solution for a given time on the hydrophobic membrane filter. Then, the microbial dissolution solution is dispensed to a reaction container containing a luminescent reagent, and luminescence is detected to detect the microbes.
    Type: Application
    Filed: September 11, 2013
    Publication date: January 9, 2014
    Applicant: HITACHI PLANT TECHNOLOGIES, LTD.
    Inventors: Masahiro OKANOJO, Hideyuki NODA, Noe MIYASHITA
  • Patent number: 8616843
    Abstract: Turbo machinery comprising an impeller and a diffuser positioned on a downstream side of the impeller that a channel wall surface of the diffuser is composed of a pair of a shroud side diffuser plate and a hub side diffuser plate which surface each other and a channel width is formed so as to be increased downstream, characterized in that guide vanes in a circular arc shape lower in height than the channel width are installed in a line of a plurality of vanes on both channel walls of the shroud side diffuser plate and hub side diffuser plate of the diffuser, and a total of vane heights of the two guide vanes at an outlet of the diffuser is set so as to be within a range from 30 to 70% of the channel width at the outlet of the diffuser.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: December 31, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Takanori Shibata, Manabu Yagi, Hideo Nishida, Hiromi Kobayashi, Masanori Tanaka
  • Patent number: 8597520
    Abstract: A wastewater treatment method in which magnetic flocs are formed by adding to wastewater an inorganic flocculant, magnetic particles, and a high molecular polymer as a polymeric flocculant, and the magnetic flocs are collected with magnetic force to thereby obtain treated water having the magnetic flocs removed from the wastewater, wherein the improvement comprises that the magnetic particles are added to the wastewater after adding the inorganic flocculant to the wastewater to flocculate suspended solids in the wastewater, after that or substantially at the same time as the magnetic particles are added, the high molecular polymer is added to the wastewater, and flocculates of the suspended solids and the magnetic particles are combined with each other with the high molecular polymer to thereby obtain the magnetic flocs.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: December 3, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Hisashi Isogami, Akira Mochizuki, Hiroshi Sasaki, Tadashi Sano, Satoshi Miyabayashi
  • Patent number: 8591841
    Abstract: In relation to a microreactor, and also a microreactor system applying the same therein, not producing any dead volume therein, and thereby achieving a high level of mixing properties even at a low solution flow rate and having a simple structure thereof, disclosed herein are a microreactor and microreactor system, comprising a channel for mixing up at least two (2) types of fluids, and thereby conducting mixing/reacting of fluids by conducting the mixing/reacting of the fluids at least one (1) time, i.e., being suitable for so-called a multi-step reaction.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: November 26, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Yukako Asano, Tetsuro Miyamoto, Shigenori Togashi, Yoshishige Endo, Hidekazu Tsudome, Hajime Kato
  • Publication number: 20130298897
    Abstract: [Problem] To present a solar heat collecting device capable of enhancing the heat collecting efficiency by effectively utilizing the sunlight entering an area near the end part of the reflector at the opposite side of the direction of location of the sun. [Solving Means] In the solar heat collecting device for collecting the reflected light of sunlight Sb1, Sb2 entering a trough type reflector 1 having a parabolic section to a heat collecting pipe 2 erected at a position of focus of the reflector 1, and transmitting energy to a heat medium passing inside of the heat collecting pipe 2, the solar heat collecting device is installed so that central axis L1 of the reflector 1 may be directed along the north-south axis, and a plane reflector 3 is disposed orthogonally to central axis L1, at the end part of the reflector 1 at the opposite side of the direction of location of the sun.
    Type: Application
    Filed: November 9, 2011
    Publication date: November 14, 2013
    Applicants: Hitachi Plant Mechanics Co., Ltd., Hitachi Plant Technologies, Ltd.
    Inventors: Shinichirou Kawane, Jun Yoshida, Munenori Kawamura, Hironobu Ueda
  • Patent number: 8569047
    Abstract: The sample container has a two-layer membrane filter comprising a first layer as an upper layer serving as a hydrophilic membrane filter and a hydrophobic membrane filter as an underlying second layer capable of filtering an aqueous solution without the use of a wetting agent and by means of a formed negative pressure. Using this sample container, a large amount of an aqueous sample solution is filtered by means of a negative pressure formed by a suction portion to capture microbes in the aqueous sample solution by the hydrophilic membrane filter. Then, the negative pressure is restored to normal pressure, and a microbial dissolution solution is then added to the membrane filter to retain the microbial dissolution solution for a given time on the hydrophobic membrane filter. Then, the microbial dissolution solution is dispensed to a reaction container containing a luminescent reagent, and luminescence is detected to detect the microbes.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: October 29, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Masahiro Okanojo, Hideyuki Noda, Noe Miyashita
  • Patent number: 8562829
    Abstract: A magnetic separation apparatus comprising: a separation vessel into which waste water containing a coagulated magnetic floc is supplied; a drum separator that is provided in the separation vessel and adsorbs the magnetic floc with a magnetic force while being rotated; a scraper that is abutted against a surface of the separator and scrapes the magnetic floc adsorbed by the surface of the separator; a scraper guide that is connected to the scraper and discharges the magnetic floc scraped by the scraper; and a scraping brush that scrapes the magnetic floc scraped by the scraper from the scraper and guides the magnetic floc to the scraper guide, wherein a lower portion of the separator is submerged in the waste water in the separation vessel, a rotational direction of the separation vessel in the waste water is set to the same direction as a flow direction of the waste water flowing in the separator, and a rotational direction of the scraping brush is set to a direction opposite to the rotational direction of t
    Type: Grant
    Filed: March 4, 2011
    Date of Patent: October 22, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Hisashi Isogami, Satoshi Miyabayashi, Minoru Morita
  • Patent number: 8558035
    Abstract: In order to perform organic synthesis process through action with supercritical water and acid stably while suppressing a trouble caused by a by-product, a method and an apparatus are provided, including the following steps. Water is supplied to high-pressure pumps (110) and (210) from water headers (101) and (201), and a pressure-reducing valve (324) is regulated to increase the pressure to 35 MPa. Temperatures of preheaters (120) and (220) and a heater (310) are increased until the reaction solution is at a temperature of 400° C. Acid (sulfuric acid) and an organic compound raw material (glycerin) are supplied from an acid header (203) and a raw-material header (203?) for action with the supercritical water to obtain a reaction solution. The obtained reaction solution is cooled to 100 to 200° C.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: October 15, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Takeyuki Kondo, Hiroyuki Ito, Naruyasu Okamoto, Yasunari Sase, Toshiaki Matsuo, Kenichiro Oka, Masayuki Kamikawa
  • Patent number: 8551417
    Abstract: In order to provide, when a plurality of fluids each containing a different kind of substance are mixed and reacted, a reactor having a mixing channel capable of forming a multi-layered flow in a radial direction in the cylindrically-shaped mixing channel; improving mixing performance by synergizing swirling effects of mixture of turbulent flows and a swirling flow; and producing a reaction product with a high yield as well as high efficiency, a mixing channel 1 which mixes fluids 4 and 5 each containing the different kind of substance is cylindrically shaped, and inlet passages 2 and 3 which introduce the fluids 4 and 5, respectively, are plurally arranged in a manner offset from a central axis of the mixing channel 1.
    Type: Grant
    Filed: August 12, 2009
    Date of Patent: October 8, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Tomofumi Shiraishi, Tsutomu Kawamura, Takeyuki Kondo
  • Patent number: 8524345
    Abstract: A temporary part is fixed to a base by using an adhesive layer to which fillers are mixed at a predetermined density. When the temporary part is heated, heat is applied to the fillers and the adhesive layer. At a temperature equal to or higher than the glass-transition temperature of the adhesive agent, the heated adhesive layer is thermally contracted so as to release remaining stress, and on the other hand, the heated fillers are thermally expanded. In this manner, the peel-off strength between the adhesive layer and the base (or the temporary part) is reduced, and the disassembly is facilitated.
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: September 3, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Yoshio Oozeki, Satoshi Arai, Shigeharu Tsunoda, Taihei Yotsuya, Shizuo Imaoka
  • Patent number: 8499527
    Abstract: The present invention provides a building construction method and a room module which can realize reduction in a construction period in addition to reduction in an on-site working amount by further enlarging a room modularization range. The present invention uses four column members which are vertically provided at inner corners of four room modules adjacent to one another as a frame column of the building when a plurality of room modules are installed in a grid pattern on a floor surface of the building. Specifically, the present invention uses the column member of an angular steel pipe, which the room module has, as the frame column of the building. Thereby, on a construction site, it is not necessary to construct the frame column in advance, and the frame column can be constructed by using the column members of the room module while the room module is installed on the site.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: August 6, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Kazuaki Kobayashi, Mikio Ishiyama, Naritoshi Idebashi, Shigemi Yasuda, Kiyofusa Shiihashi, Yoshio Serizawa
  • Patent number: 8481885
    Abstract: A welding apparatus and a welding method are employed for laser narrow groove welding which performs welding scanning a laser beam in the welding direction while feeding a solid filler metal into a narrow groove. The welding apparatus includes a laser beam irradiation head having a mechanism periodically oscillating an irradiation point of the laser beam with a predetermined amplitude in the bottom of the groove, and a filler metal control device having a solid filler metal feeder feeding the solid filler metal to the molten pool formed in the bottom of the groove by the laser beam and adjusting the feeding position independent of a motion of the laser beam irradiation head so that the tip position of the solid filler metal detected is constantly positioned in the center of the groove.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: July 9, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Takeshi Tsukamoto, Hirotsugu Kawanaka, Yoshihisa Maeda, Shinji Imaoka, Tetsuya Kuwano, Taiji Hashimoto
  • Patent number: 8475131
    Abstract: A centrifugal compressor provided with an impeller which is configured to have a plurality of blades arranged at a predetermined interval in a circumferential direction of a hub rotating together with a rotation shaft, in which a blade angle on a shroud side of the blade distributes to have a minimum value at a position between a leading edge of the blade and a midpoint of a camber line on the shroud side, and a maximum value at a position between the midpoint of the camber line on the shroud side and a trailing edge of the blade, and a blade angle of the blade on a hub side distributes so as to have a maximum value at a position between a leading edge and a midpoint of a camber line on the hub side.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: July 2, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Takanori Shibata, Manabu Yagi, Hideo Nishida, Hiromi Kobayashi, Masanori Tanaka, Tetsuya Kuwano
  • Patent number: 8465644
    Abstract: To present a membrane element in an immersion type membrane separation apparatus capable of filtering efficiently by holding a uniform filtering capacity on the whole of the membrane surface if clogging occurs in a part of the membrane surface. The membrane element A is composed of a filtration chamber forming part C arrayed by dividing filtration chambers into a plurality in a vertical direction, water collecting transverse groove forming parts B forming transverse grooves (4) for collecting filtered water from each filtration chamber in a lateral direction by connecting with the filtration chamber forming part C, and a water collecting route (10) by connecting with the water collecting transverse groove forming parts B for collecting the water flaker in the lateral direction from each transverse groove (4) and discharging to outside.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: June 18, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Kotaro Kitamura, Yasuyuki Okuno, Yusuke Okawa, Hidemi Nagakawa
  • Patent number: 8451267
    Abstract: A pipe installation support apparatus includes: a display control device for displaying images of pipes already installed and a pipe to be attached on a display device; an input device for inputting a movement instruction to move or rotate at least one of the image of the pipes; and a moving device for translating or rotating at least one of three-dimensional data of the pipes already installed and the three-dimensional data of the pipe to be attached based on the movement instruction when the movement instruction is input from the input device, wherein when the moving device translates or rotates the three-dimensional data, the display control device moves the images of the pipes already installed and the pipe to be attached displayed on the display device.
    Type: Grant
    Filed: December 10, 2009
    Date of Patent: May 28, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Hiroshi Yokoyama, Toshiyuki Yamagata, Shinichi Ebata, Kazuo Narita
  • Patent number: 8450531
    Abstract: An object of the present invention is to provide a method for commercially manufacturing acrolein in a large flow rate by making supercritical water and an acid interact with glycerin, wherein by efficiently mixing high-concentration glycerin and supercritical water with each other, the method is made capable of making the synthesis stably proceed with a high yield while the occlusion and abrasion of the pipes and devices due to the generation of by-products are being suppressed.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: May 28, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Takeyuki Kondo, Masayuki Kamikawa, Kenichiro Oka, Toshiaki Matsuo, Masashi Tanto, Yasunari Sase, Hiroyuki Ito, Tomofumi Shiraishi, Tsutomu Kawamura, Naruyasu Okamoto
  • Publication number: 20130104356
    Abstract: Plural saddle shape patches are formed on a blank material for forming a blade using a manufacturing apparatus provided with a punch support having punches each with a holder attached to be opposite with one another at a predetermined interval corresponding to a thickness of the blank material. The punch support is mounted to a second ram via a second rotational mechanism which is rotatable in a direction in which the ram moves. The die is attached to the first ram via the first rotational mechanism. The actuator controls the rotating angles of both the rotational mechanisms.
    Type: Application
    Filed: December 13, 2012
    Publication date: May 2, 2013
    Applicant: HITACHI PLANT TECHNOLOGIES, LTD.
    Inventor: HITACHI PLANT TECHNOLOGIES, LTD.
  • Patent number: 8426766
    Abstract: A welding method for an impeller having a plurality of blades, a disc and an exterior body including a shroud welded to the plurality of blades, comprising the steps of: a first step for forming a groove having a prescribed depth and a prescribed width toward one of the blades on a surface of the disc or the exterior body, which is opposite to a surface against the blade abuts, emitting laser light toward the bottom of the groove, and performing melt-through bead welding to bond the bottom of the groove to an end of the blade in such a way that a bead formed on the back of the disc or the shroud is curved with an inward depression; and a second step for performing overlaying welding after completion of the first step by supplying a filler metal to a molten zone while the bottom of the groove is scanned with the laser light.
    Type: Grant
    Filed: October 9, 2008
    Date of Patent: April 23, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Takeshi Tsukamoto, Yoshihisa Maeda, Hiromi Kobayashi, Hideto Nogiwa, Tetsuya Kuwano, Ryujiro Udo, Masaaki Iwasa
  • Patent number: D686276
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: July 16, 2013
    Assignee: Hitachi Plant Technologies, Ltd.
    Inventors: Hirokuni Kurihara, Takao Kawano, Tomoyuki Yahagi, Makoto Homma