Patents by Inventor Masaaki Sakurai
Masaaki Sakurai 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: 9981864Abstract: An oily water separator for removing oil from oil-containing water, including a vessel, a filtration membrane unit and a discharge mechanism, the filtration membrane unit containing a filtration membrane module and a returning mechanism, the filtration membrane module for performing filtration in the state of allowing the module to be immersed into the oil-containing water, the filtration membrane module having an elongated filtration membrane with an opening portion, the opening portion of the filtration membrane being fixed to one end of the filtration membrane module, the opening portion of the filtration membrane being communicatively connected to the returning mechanism, and the returning mechanism being extended along the filtration membrane toward an end on a side opposite to an end portion having the opening portion thereof, the returning mechanism being communicatively connected with the discharge mechanism.Type: GrantFiled: November 14, 2014Date of Patent: May 29, 2018Assignee: TOYO ENGINEERING CORPORATIONInventors: Masaaki Sakurai, Kenji Sakai, Hidekiyo Hara, Kanako Abe, Takashi Nomura
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Patent number: 9579653Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.Type: GrantFiled: July 3, 2013Date of Patent: February 28, 2017Assignee: Fujikura Kasei Co., Ltd.Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
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Patent number: 9283561Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.Type: GrantFiled: July 3, 2013Date of Patent: March 15, 2016Assignee: Fujikura Kasei Co., Ltd.Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
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Patent number: 9283562Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.Type: GrantFiled: July 3, 2013Date of Patent: March 15, 2016Assignee: Fujikura Kasei Co., Ltd.Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
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Publication number: 20150136697Abstract: An oily water separator for removing oil from oil-containing water, including a vessel, a filtration membrane unit and a discharge mechanism; the filtration membrane unit containing a filtration membrane module and a returning mechanism, the filtration membrane module for performing filtration in the state of allowing the module to be immersed into the oil-containing water; the filtration membrane module having an elongated filtration membrane with an opening portion, the opening portion of the filtration membrane being fixed to one end of the filtration membrane module, the opening portion of the filtration membrane being communicatively connected to the returning mechanism; the returning mechanism being extended along the filtration membrane toward an end on a side opposite to an end portion having the opening portion thereof, the returning mechanism being communicatively connected with the discharge mechanism.Type: ApplicationFiled: November 14, 2014Publication date: May 21, 2015Inventors: Masaaki SAKURAI, Kenji SAKAI, Hidekiyo HARA, Kanako ABE, Takashi NOMURA
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Patent number: 8801921Abstract: A method of produced water treatment in an in-situ recovery method of producing bitumen from oil sand, the method has the steps of: separating bitumen from bitumen-mixed fluid so as to leave produced water, the bitumen-mixed fluid having been recovered from the oil sand wells; and filtering the produced water via a microfiltration membrane made of polytetrafluoroethylene.Type: GrantFiled: January 22, 2010Date of Patent: August 12, 2014Assignees: Toyo Engineering Corporation, Sumitomo Electric Industries, Ltd.Inventors: Hiroaki Ikebe, Hiroshi Yokohata, Masaaki Sakurai, Toru Morita
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Publication number: 20130294982Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.Type: ApplicationFiled: July 3, 2013Publication date: November 7, 2013Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
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Publication number: 20130294981Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.Type: ApplicationFiled: July 3, 2013Publication date: November 7, 2013Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
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Publication number: 20130294980Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.Type: ApplicationFiled: July 3, 2013Publication date: November 7, 2013Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
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Patent number: 8499794Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.Type: GrantFiled: October 28, 2009Date of Patent: August 6, 2013Assignee: Fujikura Kasei Co., Ltd.Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
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Publication number: 20110120580Abstract: The present invention relates to a liquid channel device capable of easily opening the liquid channel from the closed mode, including a base plate in which a liquid channel, through which a liquid containing at least one of a sample and a reagent, flows, and a metering chamber for holding the liquid, are formed to at least one side thereof, the metering chamber has a liquid transport section for transporting the liquid inside the chamber downstream, and this liquid transport section is operated by means of external pressing on a cover plate in the area opposite the metering chamber.Type: ApplicationFiled: October 28, 2009Publication date: May 26, 2011Applicant: FUJIKURA KASEI CO., LTD.Inventors: Shigeru Takahashi, Masaaki Sakurai, Jiro Wakamatsu
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Publication number: 20110089013Abstract: An apparatus of produced water treatment, to be adopted in an in-situ recovery method of producing bitumen from oil sand, the apparatus capable of removing the oil from produced water, the produced water of being left by separating the bitumen from bitumen-mixed fluid having been recovered from the oil sand, the apparatus having: a vessel for receiving the produced water; a submerge type filtration membrane module, installed in the vessel, for filtering the produced water in the condition of the membrane being submerged in the produced water; and a bubble generator for generating bubbles to be forwarded toward the submerged filtration membrane in the produced water.Type: ApplicationFiled: September 24, 2010Publication date: April 21, 2011Inventors: Masaaki Sakurai, Hiroaki Ikebe, Hiroshi Yokohata, Toru Morita, Kiyoshi Ida
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Publication number: 20100264068Abstract: A method of produced water treatment in an in-situ recovery method of producing bitumen from oil sand, the method has the steps of: separating bitumen from bitumen-mixed fluid so as to leave produced water, the bitumen-mixed fluid having been recovered from the oil sand wells; and filtering the produced water via a microfiltration membrane made of polytetrafluoroethylene.Type: ApplicationFiled: January 22, 2010Publication date: October 21, 2010Inventors: Hiroaki Ikebe, Hiroshi Yokohata, Masaaki Sakurai, Toru Morita
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Patent number: 6964872Abstract: When insoluble magnetic carrier particles are used in immunoassay, a method is provided which is suitable for saving labor and for treating a large number of samples within a short time while avoiding problems including difficulties in the stability of sensitized insoluble magnetic particles and in their preparation. In assaying an antigenic substance in test samples, no use is made of insoluble magnetic particles carrying an antibody specific to the said antigenic substance but insoluble magnetic carrier particles are provided in a state free from adsorbing said antibody, etc. Then the antigenic substance per se to be assayed is adsorbed on the insoluble magnetic carrier particles followed by reaction with a labeled antibody specific to the said adsorbed antigenic substance. Thus, the antigenic substance in the test sample can be efficiently assayed in a mode suitable for automation.Type: GrantFiled: April 26, 2002Date of Patent: November 15, 2005Assignee: SRL, Inc.Inventors: Masaaki Sakurai, Naoki Takanashi, Masanori Oka, Minoru Hirata
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Publication number: 20040058387Abstract: When insoluble magnetic carrier particles are used in immunoassay, a method is provided which is suitable for saving labor and for treating a large number of samples within a short time while avoiding problems including difficulties in the stability of sensitized insoluble magnetic particles and in their preparation. In assaying an antigenic substance in test samples, no use is made of insoluble magnetic particles carrying an antibody specific to the said antigenic substance but insoluble magnetic carrier particles are provided in a state free from adsorbing said antibody, etc. Then the antigenic substance per se to be assayed is adsorbed on the insoluble magnetic carrier particles followed by reaction with a labeled antibody specific to the said adsorbed antigenic substance. Thus, the antigenic substance in the test sample can be efficiently assayed in a mode suitable for automation.Type: ApplicationFiled: July 15, 2003Publication date: March 25, 2004Inventors: Masaaki Sakurai, Naoki Takanashi, Masanori Oka, Minoru Hirata
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Patent number: 6258259Abstract: The invention provides an iron sulfide characterized in that it comprises FeS2, Fe1−XS, Fe3O4 and FeSO4, and that the secondary particles thereof, have a 50% volume-cumulative particle diameter of from 20 to 300 &mgr;m. The invention also provides a process for producing an iron sulfide comprising the steps of introducing (a) ferrous sulfate monohydrate having a d50 of from 20 to 300 &mgr;m and (b) not less than stoichiometric amount of at least one sulfur compound selected from elemental sulfur and hydrogen sulfide into the fluidized bed of a furnace and then fluidizing, burning, and reacting the ingredients at a temperature of from 350 to less than 630° C., a superficial velocity of 0.1 m/sec or higher, and a pressure of 1 atm or higher using air as a fluidizing gas. The present invention is useful, for example, in a process of coal liquefaction or heavy-oil hydrocracking.Type: GrantFiled: January 21, 2000Date of Patent: July 10, 2001Assignee: Asashi Kasei Kabushiki KaishaInventors: Tadashi Kai, Yuji Matsue, Masaaki Sakurai, Kunihiro Imada, Kenji Inokuchi
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Patent number: 6056935Abstract: The invention provides an iron sulfide characterized in that it comprises FeS.sub.2, Fe.sub.1-x S, Fe.sub.3 O.sub.4 and FeSO.sub.4, and that the secondary particles thereof, have a 50% volume-cumulative particle diameter of from 20 to 300 .mu.m. The invention also provides a process for producing an iron sulfide comprising the steps of introducing (a) ferrous sulfate monohydrate having a d.sub.50 of from 20 to 300 .mu.m and (b) not less than stoichiometric amount of at least one sulfur compound selected from elemental sulfur and hydrogen sulfide into the fluidized bed of a furnace and then fluidizing, burning, and reacting the ingredients at a temperature of from 350 to less than 630.degree. C., a superficial velocity of 0.1 m/sec or higher, and a pressure of 1 atm or higher using air as a fluidizing gas.Type: GrantFiled: November 24, 1997Date of Patent: May 2, 2000Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Tadashi Kai, Yuji Matsue, Masaaki Sakurai, Kunihiro Imada, Kenji Inokuchi
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Patent number: 5802434Abstract: An image fixing apparatus which includes a rotatable member for fixing an image, a plurality of separation members for contacting the rotatable member, and a mechanism for shifting the contactable member in a direction of a generating line of the rotatable member so as to engage and disengage the separation members from the rotatable member. The shifting of the separation members is timed so that they are separated from the rotatable member a line period shorter than that required for fused toner on the separation member to solidify.Type: GrantFiled: March 24, 1994Date of Patent: September 1, 1998Assignee: Canon Kabushiki KaishaInventors: Yoshifumi Takehara, Masaaki Sakurai
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Patent number: 5719681Abstract: An image processor in which information or a pattern is added to input image data, with the added information or pattern having a resolution or density which is different from that of the input image data.Type: GrantFiled: May 31, 1996Date of Patent: February 17, 1998Assignee: Canon Kabushiki KaishaInventors: Nobuatsu Sasanuma, Masaaki Sakurai, Rie Saito
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Patent number: 5563695Abstract: An image formation apparatus is disclosed, capable of forming an image on both surfaces of a recording medium. The image formation apparatus is provided with the latent image forming unit for forming an unfixed image on the photosensitive drum, the transfer drum for transferring the unfixed image onto the recording medium, and an oil application device for applying a release agent onto the fixing roller. The release agent applied upon fixing the first surface is different in quantity from that applied upon fixing the second surface and the releasing agent applied to the fixing rotor during single side fixing is different in quantity than when both surfaces are to be fixed. The releasing agent quantity also differs depending on whether the apparatus is in cassette feed mode or manual feed mode and is not applied when the recording medium is in contact with the fixing roller.Type: GrantFiled: May 23, 1995Date of Patent: October 8, 1996Assignee: Canon Kabushiki KaishaInventors: Masaaki Sakurai, Tatsuo Takeuchi, Masahiro Inoue, Jiro Ishizuka