Patents by Inventor Masato Takai

Masato Takai 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).

  • Publication number: 20240409232
    Abstract: A hydrogen aircraft includes: an engine that uses hydrogen as a fuel; a fuel tank; and a fuel supply line from the fuel tank to the engine. The fuel tank or the fuel supply line includes a cooling medium supply port. The fuel supply line includes a cooling medium recovery port that is located downstream of the cooling medium supply port. A precooling system for the fuel supply line of the hydrogen aircraft includes: a cooling medium supply line to supply a cooling medium to the cooling medium supply port; and a cooling medium recovery line to recover the cooling medium from the cooling medium recovery port. The precooling system supplies the cooling medium from the cooling medium supply line to the fuel supply line through the cooling medium supply port and recovers the supplied cooling medium through the cooling medium recovery port to precool the fuel supply line.
    Type: Application
    Filed: October 27, 2022
    Publication date: December 12, 2024
    Inventors: Masato TAKAI, Ryosuke OSHIMA
  • Publication number: 20220036323
    Abstract: A computer-implemented system and method uses a processor of a device of an expiring virtual currency (EVC) wallet user. An EVC transaction is retrieved that is associated with a blockchain and addressed to an address associated with the EVC wallet. The EVC transaction comprises an expiration date for the EVCs, as part of virtual currency user rules (VCURs). If the expiration date of the EVCs has passed, the method automatically, and without user intervention, transfers the EVCs to a transferee designated in the VCURs.
    Type: Application
    Filed: July 28, 2020
    Publication date: February 3, 2022
    Inventors: Yu Sasaki, GOYA SAKURADA, HIROSHIGE TAKEUCHI, MASATO TAKAI, MIKIO KURIHARA
  • Publication number: 20090023324
    Abstract: The object of the present invention is to provide a locking structure of a flexible board, which combines a reliable locking of and a smooth removal of the flexible board inserted to the Non-ZIF type connector, does not widen the width of the flexible board, and thereby does not increase the occupied mounting area of the connector, and furthermore does not compromise one-action insertion and removal.
    Type: Application
    Filed: April 13, 2006
    Publication date: January 22, 2009
    Applicant: TAIKO DENKI CO., LTD.
    Inventors: Masakazu Koike, Masato Takai, Ken Minagawa, Shigeru Mitsuzuka
  • Patent number: 7364660
    Abstract: A polyamide having an equilibrium water absorption of not more than 10% is used as a main material. As a polyamide having an equilibrium water absorption of not.more than 10%, for example, a polyamide comprising a dicarboxylic acid component comprising 60-100 mol % of terephthalic acid and a diamine component comprising 60-100 mol % of 1,9-nonanediamine and/or 2-methyl-1,8-octanediamine is used. As a result, a porous membrane showing extremely small dimensional change even after a hot water treatment, and particularly useful as a medical separation membrane permitting an AC sterilization treatment and the like is obtained.
    Type: Grant
    Filed: July 10, 2003
    Date of Patent: April 29, 2008
    Assignees: Kuraray Co., Ltd., Kuraray Medical Inc.
    Inventors: Masato Takai, Yoichi Matsumoto, Kouji Sekiguchi, Tomoki Kakiuchi, Hitoshi Tsuruta, Takao Shimizu
  • Publication number: 20050145561
    Abstract: A polyamide having an equilibrium water absorption of not more than 10% is used as a main material. As a polyamide having an equilibrium water absorption of not.more than 10%, for example, a polyamide comprising a dicarboxylic acid component comprising 60-100 mol % of terephthalic acid and a diamine component comprising 60-100 mol % of 1,9-nonanediamine and/or 2-methyl-1,8-octanediamine is used. As a result, a porous membrane showing extremely small dimensional change even after a hot water treatment, and particularly useful as a medical separation membrane permitting an AC sterilization treatment and the like is obtained.
    Type: Application
    Filed: July 10, 2003
    Publication date: July 7, 2005
    Inventors: Masato Takai, Yoichi Matsumoto, Kouji Sekiguchi, Tomoki Kakiuchi, Hitoshi Tsuruta, Takao Shimizu
  • Patent number: 6831139
    Abstract: The present invention provides a method for manufacturing an ethylene-vinyl acetate copolymer (EVA) in a polymerization solution in a vessel. The polymerization solution includes ethylene, vinyl acetate, methanol and a polymerization initiator. This method includes: cooling a gas including a vapor evaporated from the polymerization solution whereby to produce a condensate of at least a portion of said gas, and introducing said condensate into the polymerization solution whereby to evaporate at least one component in said condensate. Said vapor includes said at least one component.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: December 14, 2004
    Assignee: Kuraray Co., Ltd.
    Inventors: Takaharu Kawahara, Masato Takai
  • Patent number: 6777505
    Abstract: The present invention provides a method for manufacturing an ethylene-vinyl acetate that includes: (a) introducing an ethylene containing gas and a vinyl acetate containing liquid into a heat exchanger, said gas including ethylene vaporized from a polymerization solution; (b) bringing said gas into contact with said liquid in the heat exchanger so as to dissolve at least a portion of the ethylene in said gas into said liquid; and (c) introducing said liquid from the heat exchanger into the polymerization solution. In this method, the ethylene containing gas and the vinyl acetate containing liquid flow in parallel with each other in the heat exchanger.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: August 17, 2004
    Assignee: Kuraray Co., Ltd.
    Inventors: Masato Takai, Etsuo Nakazato, Kouichi Takahashi, Yoichi Matsumoto, Masahiro Igaki, Takaharu Kawahara, Nobutoshi Wada
  • Patent number: 6514409
    Abstract: A hollow fiber membrane made of an ethylene-vinyl alcohol polymer, comprises a dense layer existing in the inner surface and a porous layer existing in the layer other than the dense layer, wherein the hollow fiber membrane has a porosity of 60 to 90%, an overall mass transfer coefficient for myoglobin in a water-based system of not less than 0.003 cm/min., and a rejection rate for albumin in a bovine blood system of not less than 97%. The EVA hollow fiber membrane is useful for hemopurification membranes such as hemodialysis membranes, hemodiafiltration membranes, hemofiltration membranes and continuous hemofiltration membranes, and a process for producing the same.
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: February 4, 2003
    Assignee: Kuraray Co., Ltd.
    Inventors: Tomoki Kakiuchi, Koji Sekiguchi, Takeshi Suehiro, Shuhei Nakaji, Yoichi Matsumoto, Masato Takai, Nozomu Sugo, Hitoshi Tsuruta
  • Publication number: 20020176812
    Abstract: The present invention provides a method for manufacturing an ethylene-vinyl acetate that includes:
    Type: Application
    Filed: March 15, 2002
    Publication date: November 28, 2002
    Applicant: KURARAY CO., LTD.
    Inventors: Masato Takai, Etsuo Nakazato, Kouichi Takahashi, Yoichi Matsumoto, Masahiro Igaki, Takaharu Kawahara, Nobutoshi Wada
  • Publication number: 20020156335
    Abstract: The present invention provides a method for manufacturing an ethylene-vinyl acetate copolymer (EVA) in a polymerization solution in a vessel. The polymerization solution includes ethylene, vinyl acetate, methanol and a polymerization initiator. This method includes: cooling a gas including a vapor evaporated from the polymerization solution whereby to produce a condensate of at least a portion of said gas, and introducing said condensate into the polymerization solution whereby to evaporate at least one component in said condensate. Said vapor includes said at least one component.
    Type: Application
    Filed: March 29, 2002
    Publication date: October 24, 2002
    Applicant: KURARAY CO., LTD.
    Inventors: Takaharu Kawahara, Masato Takai
  • Publication number: 20010015335
    Abstract: A hollow fiber membrane made of an ethylene-vinyl alcohol polymer, comprising a dense layer existing in the inner surface and a porous layer existing in the layer other than the dense layer, wherein the hollow fiber membrane has a porosity of 60 to 90%, an overall mass transfer coefficient for myoglobin in a water-based system of not less than 0.003 cm/min., and a rejection rate for albumin in a bovine blood system of not less than 97%. The EVA hollow fiber membrane is useful for hemopurification membranes such as hemodialysis membranes, hemodiafiltration membranes, hemofiltration membranes and continuous hemofiltration membranes, and a process for producing the same.
    Type: Application
    Filed: January 10, 2001
    Publication date: August 23, 2001
    Applicant: Kuraray Co. Ltd.
    Inventors: Tomoki Kakiuchi, Koji Sekiguchi, Takeshi Suehiro, Shuhei Nakaji, Yoichi Matsumoto, Masato Takai, Nozomu Sugo, Hitoshi Tsuruta