Patents by Inventor Kazuo Takei

Kazuo Takei 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).

  • Patent number: 9065150
    Abstract: The present invention provides a stable electrolyte material that provides high safety, exhibits favorable ionic conductivity not only at room temperature but also in the low temperature range at or below room temperature, has excellent reduction resistance, and can be suitably used as a material of a lithium ion cell. The electrolyte material includes, as essential components, a specific polymer having an ether bond in a side chain thereof, and a specific electrolyte salt.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: June 23, 2015
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Masashi Hashimoto, Akane Oguro, Naohiko Itayama, Kazuo Takei, Izuho Okada
  • Patent number: 8889349
    Abstract: A method for accurately counting desired cells or microorganisms (viable bacteria) in a sample fluid in which contaminants are included is provided. One or plural types of membrane-permeable fluorochromes whose fluorescence amount is amplified by binding to a nucleic acid and glycerin are added to a sample fluid containing cells or microorganisms to be counted and allowed to stand for a certain time. Glycerin is added before or after or simultaneously with the mixing of the sample fluid and the fluorochrome(s). The cells or microorganisms to be counted are counted by staining the cells or microorganisms to be counted, followed by irradiating with light having a specific wavelength to detect the fluorescence emitted from the cells or microorganisms.
    Type: Grant
    Filed: October 28, 2010
    Date of Patent: November 18, 2014
    Assignee: Hitachi Engineering & Services Co., Ltd.
    Inventors: Kei Takenaka, Hideki Nakamoto, Kazuo Takei, Masahiro Kurihara, Yuusuke Watanabe, Hisao Saito, Yasuhiko Sasaki
  • Patent number: 8404480
    Abstract: Provided are a microorganism testing chip capable of suppressing self-fluorescence and enhancing mass productivity, and a microorganism testing device using the same. The microorganism testing chip includes a main body and a fungus body detection unit mounted on the main body. The main body has a detection window frame portion which is a through-hole or a pass-through groove. The fungus body detection unit is disposed to cover the detection window frame portion and has a fungus body detection flow path connected to flow paths provided in the main body. The fungus body detection unit includes a cover member and a flow path member, and is formed by attaching these two members to each other. The flow path member has a groove. By attaching the two members to each other, the groove of the flow path member serves as the fungus body detection flow path.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: March 26, 2013
    Assignee: Hitachi Engineering & Services Co., Ltd.
    Inventors: Kei Takenaka, Yasuhiko Sasaki, Hideki Nakamoto, Kazuo Takei, Masahiro Kurihara, Yuusuke Watanabe, Hisao Saito
  • Publication number: 20120244427
    Abstract: The present invention provides a stable electrolyte material that provides high safety, exhibits favorable ionic conductivity not only at room temperature but also in the low temperature range at or below room temperature, has excellent reduction resistance, and can be suitably used as a material of a lithium ion cell. The electrolyte material includes, as essential components, a specific polymer having an ether bond in a side chain thereof, and a specific electrolyte salt.
    Type: Application
    Filed: December 9, 2010
    Publication date: September 27, 2012
    Applicant: Nippon Shokubai Co., Ltd.
    Inventors: Masashi Hashimoto, Akane Oguro, Naohiko Itayama, Kazuo Takei, Izuho Okada
  • Patent number: 8134027
    Abstract: The present invention provides a method for producing fluorosulfonylimides more safely, rapidly and efficiently, which enables suppression of production of by-products, and fluorosulfonylimides. The method for producing a fluorosulfonylimide salt of the present invention includes a step of reacting a fluoride compound containing at least one element selected from the group consisting of elements of Group 11 to Group 15 and Period 4 to Period 6 (excluding arsenic and antimony) with a compound represented by the following general formula (I) to give a fluorosulfonylimide salt represented by the general formula (II): [Chemical Formula 1] wherein R1 denotes at least one element selected from the group consisting of elements of Group 11 to Group 15 and Period 4 to Period 6 (excluding arsenic and antimony); R3 denotes fluorine, chlorine or a fluorinated alkyl group having 1 to 6 carbon atoms; R4 denotes fluorine or a fluorinated alkyl group having 1 to 6 carbon atoms; and m denotes an integer of 2 or 3.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: March 13, 2012
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Yasunori Okumura, Kazuo Takei, Shimpei Sato, Yuichi Sato
  • Publication number: 20110104685
    Abstract: A means for accurately counting desired cells or microorganisms (viable bacteria) in a sample fluid in which contaminants are included is provided. One or plural types of membrane-permeable fluorochromes whose fluorescence amount is amplified by binding to a nucleic acid and glycerin are added to a sample fluid containing cells or microorganisms to be counted and allowed to stand for a certain time. Glycerin is added before or after or simultaneously with the mixing of the sample fluid and the fluorochrome(s). The cells or microorganisms to be counted are counted by staining the cells or microorganisms to be counted, followed by irradiating with light having a specific wavelength to detect the fluorescence emitted from the cells or microorganisms.
    Type: Application
    Filed: October 28, 2010
    Publication date: May 5, 2011
    Inventors: Kei Takenaka, Hideki Nakamoto, Kazuo Takei, Masahiro Kurihara, Yuusuke Watanabe, Hisao Saito, Yasuhiko Sasaki
  • Publication number: 20110034716
    Abstract: The present invention provides a method for producing fluorosulfonylimides more safely, rapidly and efficiently, which enables suppression of production of by-products, and fluorosulfonylimides. The method for producing a fluorosulfonylimide salt of the present invention includes a step of reacting a fluoride compound containing at least one element selected from the group consisting of elements of Group 11 to Group 15 and Period 4 to Period 6 (excluding arsenic and antimony) with a compound represented by the following general formula (I) to give a fluorosulfonylimide salt represented by the general formula (II): wherein R1 denotes at least one element selected from the group consisting of elements of Group 11 to Group 15 and Period 4 to Period 6 (excluding arsenic and antimony); R3 denotes fluorine, chlorine or a fluorinated alkyl group having 1 to 6 carbon atoms; R4 denotes fluorine or a fluorinated alkyl group having 1 to 6 carbon atoms; and m denotes an integer of 2 or 3.
    Type: Application
    Filed: March 30, 2009
    Publication date: February 10, 2011
    Inventors: Yasunori Okumura, Kazuo Takei, Shimpei Sato, Yuichi Sato
  • Publication number: 20100273208
    Abstract: To eliminate the necessity of a dedicated optical system and the flowing of fluorescent microparticles for aligning excitation light with a flat plate-shaped flow cell which internally includes a flow path, a microorganism testing apparatus includes: a first detector that detects fluorescence emitted from microorganisms flowing through a detection flow path when a microorganism detection unit included in a microorganism testing chip is irradiated with excitation light, and converts the fluorescence to an electrical signal; and a second detector that detects scattered light similarly emitted from the microorganisms flowing through the detection flow path, and converts the scattered light to an electrical signal. The alignment of the detection flow path is performed in the direction of the optical axis of the excitation light by controlling and moving a stage having the microorganism testing chip mounted thereon based on the intensity of fluorescence detected by the first detector.
    Type: Application
    Filed: April 26, 2010
    Publication date: October 28, 2010
    Inventors: Kei Takenaka, Hideki Nakamoto, Kazuo Takei, Masahiro Kurihara, Yuusuke Watanabe, Hisao Saito
  • Publication number: 20100093072
    Abstract: Provided are a microorganism testing chip capable of suppressing self-fluorescence and enhancing mass productivity, and a microorganism testing device using the same. The microorganism testing chip includes a main body and a fungus body detection unit mounted on the main body. The main body has a detection window frame portion which is a through-hole or a pass-through groove. The fungus body detection unit is disposed to cover the detection window frame portion and has a fungus body detection flow path connected to flow paths provided in the main body. The fungus body detection unit includes a cover member and a flow path member, and is formed by attaching these two members to each other. The flow path member has a groove. By attaching the two members to each other, the groove of the flow path member serves as the fungus body detection flow path.
    Type: Application
    Filed: October 8, 2009
    Publication date: April 15, 2010
    Inventors: Kei TAKENAKA, Yasuhiko SASAKI, Hideki NAKAMOTO, Kazuo TAKEI, Masahiro KURIHARA, Yuusuke Watanabe, Hisao SAITO
  • Publication number: 20090291488
    Abstract: A microorganism testing device includes: an analysis chip that includes a fluid specimen container, a reaction container for causing the fluid specimen to react with a reagent solution, a microorganism detection flow path, and an alignment reagent container for holding an alignment reagent to be used in an alignment work of the microorganism detection flow path; a moving stage for holding the analysis chip; and a detection device including a light source for irradiating the detection flow path with light, and an optical detector for detecting light from the detection flow path and converting the light into electric signals, in which the alignment reagent container is provided on a downstream side of the specimen container and the reaction container.
    Type: Application
    Filed: May 20, 2009
    Publication date: November 26, 2009
    Inventors: Kei TAKENAKA, Yasuhiko SASAKI, Hideki NAKAMOTO, Kazuo TAKEI, Masahiro KURIHARA, Yuusuke WATANABE
  • Publication number: 20080206647
    Abstract: An ethylene oxide copolymer of the present invention has a crystallization temperature of not more than 20° C. and a glass transition temperature of not more than ?64° C. This makes it possible to provide an ethylene oxide copolymer in which increase in the glass transition temperature is small even when metal salt is added, and a polymer composition including the ethylene oxide copolymer.
    Type: Application
    Filed: February 19, 2008
    Publication date: August 28, 2008
    Inventors: Hiromoto Katsuyama, Kazuo Takei, Taketo Toba
  • Publication number: 20070280861
    Abstract: Embodiments of the invention provide a water treatment method and water treatment device capable of automatically tracking the frequency of ultrasonic waves and automatically controlling their amplitude such that optimal cavitation is generated. In one embodiment, a water treatment method of sterilizing water containing microbes comprises supplying ultrasonic vibration to the water to be treated by driving and controlling a transducer of a sterilization cell using a signal; detecting an amplitude of the transducer and a frequency of the signal applied to the transducer; and controlling the amplitude and a vibration frequency of the transducer to target values in accordance with the detected transducer amplitude and the detected signal frequency.
    Type: Application
    Filed: September 26, 2005
    Publication date: December 6, 2007
    Applicant: Hitachi, Ltd.
    Inventors: Masahiro Kurihara, Kazuo Takei, Kunio Hashiba, Kageyoshi Katakura
  • Publication number: 20070173614
    Abstract: An object of the present invention is to provide a polyether composition that can suppress reduction in a molecular weight of polyether having a low glass transition temperature and melting point. As a means of achieving this object, a polyether composition of the present invention contains polyether having a glass transition temperature of ?50° C. or lower and a melting point of 55° C. or lower and, at the same time, contains at least one kind selected from the group consisting of compounds represented by the specified three general formulas.
    Type: Application
    Filed: March 8, 2005
    Publication date: July 26, 2007
    Applicants: Nippon Shokubai Co., Ltd., Dai-ichi Kogyo Seiyaku Co., Ltd.
    Inventors: Keiichiro Mizuta, Teruki Matsushita, Kenji Shimizu, Kazuo Takei, Michiyuki Kono, Manabu Kikuta, Nobuo Ochiai
  • Publication number: 20060264601
    Abstract: A method for the production of an alkylene oxide based polymer in which an alkylene oxide based polymer is obtained by allowing a monomer including one or two or more oxirane compound(s), which may have a substituent, as an essential raw material to be polymerized using a polymerization catalyst while agitating in a solvent. In this method for the production, the solvent includes one or two or more compound(s) selected from the group consisting of ketones, ketone derivatives, esters, ethers, nitrile compounds and organic halogen compounds.
    Type: Application
    Filed: May 18, 2006
    Publication date: November 23, 2006
    Applicant: Nippon Shokubai Co., Ltd.
    Inventors: Fumihide Tamura, Kazuo Takei, Teruki Matsushita, Taketo Toba
  • Patent number: 7018546
    Abstract: Embodiments of the invention provide a water treatment method and water treatment device capable of automatically tracking the frequency of ultrasonic waves and automatically controlling their amplitude such that optimal cavitation is generated. In one embodiment, a water treatment method of sterilizing water containing microbes comprises supplying ultrasonic vibration to the water to be treated by driving and controlling a transducer of a sterilization cell using a signal; detecting an amplitude of the transducer and a frequency of the signal applied to the transducer; and controlling the amplitude and a vibration frequency of the transducer to target values in accordance with the detected transducer amplitude and the detected signal frequency.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: March 28, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Masahiro Kurihara, Kazuo Takei, Kunio Hashiba, Kageyoshi Katakura
  • Publication number: 20050245410
    Abstract: The residual amount of a solvent in a water soluble nonionic alkylene oxide resin is decreased in an apparatus including an evaporation vessel and a stirring blade which scrapes-up and coats resin solution onto the inner wall surface of the evaporation vessel. A water soluble nonionic alkylene oxide resin having a crystallization temperature of 10 to 60° C. is extruded to a predetermined thickness in a molten state, the extruded molten resin is brought into contact with a metal surface which is at the crystallization temperature (Tc) or lower, and the thereby solidified resin may be cut into pellets. The resin pellets preferably are of rectangular shape and prescribed dimensions. The resin may be pulverized in a pulverizer by shearing force between a rotary blade and a fixed blade. In the pulverizer, grains smaller than a predetermined size pass through the screen, while larger grains are again pulverized.
    Type: Application
    Filed: February 18, 2005
    Publication date: November 3, 2005
    Inventors: Masaki Tezuka, Hiroshi Tanaka, Takao Yokohashi, Takao Nishihata, Manabu Kikuta, Michiyuki Kono, Tetsuya Higashizaki, Kazuo Takei, Taketo Toba, Toshiaki Kuriyama, Izuho Okada, Fumihide Tamura, Ritsuo Kitada, Shigetaka Takamiya, Jun Iwamura, Takanori Murakami, Hiromoto Katsuyama, Teruki Matsushita
  • Publication number: 20050197485
    Abstract: An object of the present invention is to provide a process which can produce, easily and with good productivity and reproducibility, an ethylene oxide copolymer provided with desired compositional ratios of monomers and a desired molecular weight and further with a desired melting point. As a means of achieving this object, a process according to the present invention for production of an ethylene oxide copolymer is a process comprising a step of polymerizing a monomer mixture including ethylene oxide as a main component, thereby producing the ethylene oxide copolymer, with the process being characterized in that the polymerization step includes at least one step each of the following steps: a step in which only the ethylene oxide is supplied to thus polymerize it; and a step in which the ethylene oxide and another monomer are supplied to thus polymerize them.
    Type: Application
    Filed: February 5, 2005
    Publication date: September 8, 2005
    Inventors: Koichiro Saeki, Kazuo Takei, Toshiaki Kuriyama, Masashi Yukitake, Taketo Toba, Makoto Mizushima, Michiyuki Kono, Manabu Kikuta, Masahito Nishiura
  • Patent number: 6864353
    Abstract: The present invention provides a production process, in which, when an ethylene oxide copolymer is obtained, conditions for obtaining this copolymer having a desirable molecular weight with ease and good reproducibility are provided. The production process for an ethylene oxide copolymer, according to the present invention, comprises the step of carrying out polymerization of a monomer mixture under stirring in a solvent, thereby obtaining the ethylene oxide copolymer, wherein the monomer mixture includes ethylene oxide and a substituted oxirane compound of a structural formula (1) as essential raw materials; with the production process being characterized in that the stirring is carried out by a stirring power of not less than 0.6 kW/m3.
    Type: Grant
    Filed: January 3, 2003
    Date of Patent: March 8, 2005
    Assignees: Dai-ichi Kogyo Seiyaku Co., Ltd., Nippon Shokubai Co., Ltd.
    Inventors: Michiyuki Kono, Manabu Kikuta, Masahito Nishiura, Fumihide Tamura, Taketo Toba, Shigetaka Takamiya, Koichiro Saeki, Kazuo Takei, Toshiaki Kuriyama, Masashi Yukitake
  • Publication number: 20040173541
    Abstract: Embodiments of the invention provide a water treatment method and water treatment device capable of automatically tracking the frequency of ultrasonic waves and automatically controlling their amplitude such that optimal cavitation is generated. In one embodiment, a water treatment method of sterilizing water containing microbes comprises supplying ultrasonic vibration to the water to be treated by driving and controlling a transducer of a sterilization cell using a signal; detecting an amplitude of the transducer and a frequency of the signal applied to the transducer; and controlling the amplitude and a vibration frequency of the transducer to target values in accordance with the detected transducer amplitude and the detected signal frequency.
    Type: Application
    Filed: January 8, 2004
    Publication date: September 9, 2004
    Applicant: HITACHI, LTD.
    Inventors: Masahiro Kurihara, Kazuo Takei, Kunio Hashiba, Kageyoshi Katakura
  • Publication number: 20030158374
    Abstract: The present invention provides a production process, in which, when an ethylene oxide copolymer is obtained, conditions for obtaining this copolymer having a desirable molecular weight with ease and good reproducibility are provided. The production process for an ethylene oxide copolymer, according to the present invention, comprises the step of carrying out polymerization of a monomer mixture under stirring in a solvent, thereby obtaining the ethylene oxide copolymer, wherein the monomer mixture includes ethylene oxide and a substituted oxirane compound of a structural formula (1) as essential raw materials; with the production process being characterized in that the stirring is carried out by a stirring power of not less than 0.6 kW/m3.
    Type: Application
    Filed: January 3, 2003
    Publication date: August 21, 2003
    Applicant: Dai-ichi Kogyo Seiyaku Co., Ltd.
    Inventors: Michiyuki Kono, Manabu Kikuta, Masahito Nishiura, Fumihide Tamura, Taketo Toba, Shigetaka Takamiya, Koichiro Saeki, Kazuo Takei, Toshiaki Kuriyama, Masashi Yukitake