Patents by Inventor Masaru Nakagawa

Masaru Nakagawa 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: 20130315435
    Abstract: A speaker edge includes a resin layer including a resin member and a fiber layer including a tangled fiber body. A melting temperature of the tangled fiber body is higher than a melting temperature of the resin member. The hardness of the tangled fiber body is lower than the hardness of the resin member.
    Type: Application
    Filed: November 30, 2010
    Publication date: November 28, 2013
    Applicants: TOHOKU PIONEER CORPORATION, PIONEER CORPORATION
    Inventors: Masatoshi Sato, Nobuaki Takahashi, Masaru Nakagawa, Teruaki Kaiya, Junichi Sato
  • Patent number: 8418564
    Abstract: A retainer for use in measuring a force generated between a photocurable resin and a pressing member by a detector includes: a pressing member that has light transmission characteristics and is pressed to the photocurable resin; and a light irradiation block that is provided between the detector and the pressing member and irradiates light emitted from an external light source onto the pressing member in a state of being not contacting a light source and an optical transmission line including an optical fiber.
    Type: Grant
    Filed: August 27, 2010
    Date of Patent: April 16, 2013
    Assignees: Shimadzu Corporation, Tohoku Technoarch Co., Ltd.
    Inventors: Masaki Kaneda, Masaru Nakagawa, Akihiro Kohno
  • Publication number: 20120009484
    Abstract: Glass includes an aggregate of solid electrolyte particles including Li, P, and S, wherein when a Raman spectrum of the glass is repeatedly measured and a peak at 330 to 450 cm?1 in each Raman spectrum is separated to waveforms of individual components, a standard deviation of a waveform area ratio of each component is less than 4.0.
    Type: Application
    Filed: April 7, 2010
    Publication date: January 12, 2012
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Ryo Aburatani, Minoru Senga, Tsuyoshi Ota, Masaru Nakagawa
  • Patent number: 8012631
    Abstract: A solid electrolyte including a lithium (Li) element, a phosphorus (P) element and a sulfur (S) element, the 31P MAS NMR spectrum thereof having a peak ascribed to a crystal at 90.9±0.4 ppm and 86.5±0.4 ppm; and the ratio (xc) of the crystal in the solid electrolyte being from 60 mol % to 100 mol %.
    Type: Grant
    Filed: November 28, 2006
    Date of Patent: September 6, 2011
    Assignee: Idemitsu Kosan Co., Ltd
    Inventors: Yoshikatsu Seino, Masaru Nakagawa, Minoru Senga, Masatoshi Shibata
  • Publication number: 20110056310
    Abstract: A retainer for use in measuring a force generated between a photocurable resin and a pressing member by a detector includes: a pressing member that has light transmission characteristics and is pressed to the photocurable resin; and a light irradiation block that is provided between the detector and the pressing member and irradiates light emitted from an external light source onto the pressing member in a state of being not contacting a light source and an optical transmission line including an optical fiber.
    Type: Application
    Filed: August 27, 2010
    Publication date: March 10, 2011
    Applicants: SHIMADZU CORPORATION, TOHOKU UNIVERSITY
    Inventors: Masaki Kaneda, Masaru Nakagawa, Akihiro Kohno
  • Patent number: 7610159
    Abstract: A system includes a multivariable mass flow rate transmitter having a mass flow rate computation section, and a flow rate setting tool which performs setup of the mass flow rate computation section, the flow rate setting tool including a parameter generation section, a condition input section, a model computation section, a first mass flow rate display section which displays an output value of the model computation section, a second mass flow rate display section which displays the computation result, and a diagnosing display screen which displays the first and second mass flow rate display sections on the same screen.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: October 27, 2009
    Assignee: Yokogawa Electric Corporation
    Inventors: Akio Ito, Masaru Nakagawa, Yoshihide Suzuki
  • Patent number: 7584063
    Abstract: A multivariable transmitter has a microprocessor for executing a computation processing task such as calculating a differential pressure value and static pressure with using a plurality of physical quantity signals. The microprocessor executes a processing for obtaining data from a sensor every computation processing task and executes the computation processing task in a time-division manner.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: September 1, 2009
    Assignee: Yokagawa Electric Corporation
    Inventors: Etsutaro Koyama, Masaru Nakagawa, Akio Ito, Atsuko Suzuki
  • Publication number: 20090159839
    Abstract: A solid electrolyte including a lithium (Li) element, a phosphorus (P) element and a sulfur (S) element, the 31P MAS NMR spectrum thereof having a peak ascribed to a crystal at 90.9±0.4 ppm and 86.5±0.4 ppm; and the ratio (xc) of the crystal in the solid electrolyte being from 60 mol % to 100 mol %.
    Type: Application
    Filed: November 28, 2006
    Publication date: June 25, 2009
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Yoshikatsu Seino, Masaru Nakagawa, Minoru Senga, Masatoshi Shibata
  • Publication number: 20070244654
    Abstract: A system includes a multivariable mass flow rate transmitter having a mass flow rate computation section, and a flow rate setting tool which performs setup of the mass flow rate computation section, the flow rate setting tool including a parameter generation section which generates operational parameters of the mass flow rate computation section, a condition input section for inputting a diagnosing condition, an interface section which transmits the operational parameters to the transmitter, and receives a computation result of the mass flow rate computation section, a model computation section which calculates a mass flow rate value based on the diagnosing condition, a first mass flow rate display section which displays an output value of the model computation section, a second mass flow rate display section which displays the computation result, and a diagnosing display screen which displays the first and second mass flow rate display sections on the same screen.
    Type: Application
    Filed: March 27, 2007
    Publication date: October 18, 2007
    Applicant: Yokogawa Electric Corporation
    Inventors: Akio Ito, Masaru Nakagawa, Yoshihide Suzuki
  • Publication number: 20070129490
    Abstract: The present invention provides a propylene polymer composition containing a component (A) which is either a propylene block copolymer or a composition containing a propylene polymer and a rubber ingredient; and a component (B) which is a polyolefin copolymer that contains a fraction eluting at 101° C. or higher through temperature rising elution fractionation chromatography, the fraction exhibiting a 13C-NMR peak attributed to an ethylene chain, the polyolefin copolymer having an intrinsic viscosity falling within a range of 0.5 to 10.0 deciliter/g as measured at 135° C. in decalin; a molded product formed from the composition; and a polyolefin copolymer formed of the component (B) in which a propylene polymer segment and an ethylene copolymer segment are chemically linked.
    Type: Application
    Filed: December 27, 2006
    Publication date: June 7, 2007
    Applicant: IDEMITSU PETROCHEMICAL CO., LTD.
    Inventors: YASUHIRO GOTO, Masaru Nakagawa, Tomio Tatsumi, Shuji Machida
  • Publication number: 20050125190
    Abstract: A multivariable transmitter has a microprocessor for executing a computation processing task with using a plurality of physical quantity signals. The microprocessor executes a processing for obtaining data from a sensor every computation processing task and executes the computation processing task in a time-division manner.
    Type: Application
    Filed: December 3, 2004
    Publication date: June 9, 2005
    Inventors: Etsutaro Koyama, Masaru Nakagawa, Akio Ito, Atsuko Suzuki
  • Publication number: 20040092662
    Abstract: The present invention provides a propylene polymer composition containing a component (A) which is either a propylene block copolymer or a composition containing a propylene polymer and a rubber ingredient; and a component (B) which is a polyolefin copolymer that contains a fraction eluting at 101° C. or higher through temperature rising elution fractionation chromatography, the fraction exhibiting a 13C-NMR peak attributed to an ethylene chain, the polyolefin copolymer having an intrinsic viscosity falling within a range of 0.5 to 10.0 deciliter/g as measured at 135° C. in decalin; a molded product formed from the composition; and a polyolefin copolymer formed of the component (B) in which a propylene polymer segment and an ethylene copolymer segment are chemically linked.
    Type: Application
    Filed: September 26, 2003
    Publication date: May 13, 2004
    Inventors: Yasuhiro Goto, Masaru Nakagawa
  • Patent number: 6667359
    Abstract: There are disclosed a polypropylene composition for automotive parts which has a melt index at 230° C. and at 2.16 kgf of at least 30 g/10 minutes and which comprises 55 to 60% by weight of (1) propylene/ethylene block copolymer; 20 to 25% by weight of (2) rubber comprising a styrene/ethylene/propylene/styrene block copolymer and/or a styrene/ethylene/1-butene/styrene block copolymer and an olefinic elastomer; and 18 to 23% by weight of (3) talc, and also an automotive part which comprises the above polypropylene composition.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: December 23, 2003
    Assignees: Idemitsu Petrochemical Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Masaru Nakagawa, Koki Hirano, Yutaka Obata, Yasuhisa Sugita, Takao Nomura, Masatoshi Matsuda, Hisayuki Iwai, Takayuki Nagai
  • Patent number: 6407168
    Abstract: Provided are a propylene resin composition comprising 100 parts byweight in total of two different types of propylene polymers each having specific properties, from 0 to 50 parts by weight of a specific elastomer, and from 0 to 50 parts by weight of an inorganic filler; and a method for producing it. The production method comprises melting and kneading two polymer groups each comprising one or more propylene polymers. The resin composition in which the viscosity difference between the propylene homopolymer segments to form the base polymer and the amorphous propylene segments to form the disperse phase is small is produced by first melting and kneading one polymer group, then immediately adding the other polymer group thereto, and further kneading and melting the two. For the composition in which the viscosity difference therebetween is large, the polymer groups are separately kneaded in melt, and the resulting melts are further kneaded.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: June 18, 2002
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Yasuhisa Sugita, Takashi Saeki, Hiroki Nakashima, Masaru Nakagawa, Kenichi Mitsuhashi, Yutaka Obata
  • Patent number: 6313227
    Abstract: Provided are a propylene-ethylene block copolymer having MFR of from 0.01 to 1.0 g/10 min and comprised of (A) from 85 to 97% by weight a 25° C. xylene-insoluble fraction and (B) from 3 to 15% by weight of a 25° C. xylene-soluble fraction, wherein the fraction (A) is such that its stereospecificity index measured through 13C-NMR is at least 98.0%, its intrinsic viscosity [&eegr;] falls between 2.5 and 5.5 dl/g, and its weight-average molecular weight, Mw, measured through GPC and the content, S, of the fraction having a molecular weight of at most 104.5 therein satisfy S (wt. %)≦−5.3×10−6 Mw+7.58, and the fraction (B) is such that its ethylene unit content measured through 13C-NMR falls between 30 and 70% by weight, and its intrinsic viscosity [&eegr;] falls between 2.5 and 9.0 dl/g; and its blow-molded articles.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: November 6, 2001
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Kenji Tanaka, Yasuhisa Sugita, Masaru Nakagawa, Tetsuya Nakamura
  • Patent number: 5990779
    Abstract: A thermistor for surface mounting includes a first conductive terminal member, a case having a top opening, a planar thermistor element having electrodes on mutually opposite main surfaces thereof, and a second conductive terminal member having at one end thereof a planar cover part which is attached to the top part of the case. One end of the first terminal member is positioned inside the case and above its bottom member. The other ends of the first and second terminal members are positioned on the bottom surface of the case.
    Type: Grant
    Filed: April 8, 1997
    Date of Patent: November 23, 1999
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takayo Katsuki, Yuichi Takaoka, Kiyofumi Torii, Akira Toba, Osamu Watanabe, Kouichi Tatsuoka, Masaru Nakagawa, Masahiro Yokota, Shinji Omura, Hiroshi Ohta
  • Patent number: 5986007
    Abstract: A propylenic resin which is a homopolymer of propylene or a copolymer of propylene, has (i) intrinsic viscosity [.eta.] measured in decaline at the temperature of 135.degree. C. in the range of 0.5 to 10 deciliter/g and (ii) content of insoluble fraction in boiling n-heptane (W) in the range of 10 to 99 weight % and shows (iii) relation between relaxation time of rubber component measured by pulse NMR at the temperature of 30.degree. C. [T.sub.2H.sup.R (30): .mu.s], relaxation time of rubber component measured by pulse NMR at the temperature of 80.degree. C. [T.sub.2H.sup.R (80): .mu.s] and the content of insoluble fraction in boiling n-heptane (W) satisfying the following equations:T.sub.2H.sup.R (80).ltoreq.670-2.2.times.WT.sub.2H.sup.R (80)/T.sub.2H.sup.R (30).ltoreq.8.8+0.086.times.
    Type: Grant
    Filed: April 20, 1998
    Date of Patent: November 16, 1999
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Masayuki Tsuruoka, Akira Tanaka, Masaru Nakagawa
  • Patent number: 5985973
    Abstract: Disclosed are a polypropylene-based resin and a polypropylene-based resin composition having well-balanced, high-level flowability, stiffness and impact resistance. The polypropylene-based resin has an MI of from 30 to 70 g/10 min and a 25.degree. C. xylene-soluble content, x, of from 5 to 15% by weight, in which the 25.degree. C. xylene-soluble component is such that (a) its ethylene unit content, z, is from 20 to 30% by weight, and (b) its intrinsic viscosity, [72], indecalin at 135.degree. C. is not smaller than 2.00 dl/g, and in which the 25.degree. C. xylene-insoluble component is such that (c) its ethylene unit content, y (% by weight), satisfies the following:100y/[y.times.(1-x/100)+x].ltoreq.1.13z-16.6,(d) in GPC, the content of its constituent component having a molecular weight of not smaller than 10.sup.6 is not smaller than 2% by weight, (e) its MI is from 40 to 130 g/10 min, and (f) its stereospecificity index is not smaller than 98.5%.
    Type: Grant
    Filed: August 6, 1997
    Date of Patent: November 16, 1999
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Takashi Sumitomo, Masaru Nakagawa, Masatoshi Toda, Yutaka Kobayashi, Motoki Yamada
  • Patent number: 5777056
    Abstract: A polyolefinic resin which is a homopolymer of an olefin or a copolymer of olefins, has (i) intrinsic viscosity ?.eta.! measured in decaline at the temperature of 135.degree. C. in the range of 0.5 to 10 deciliter/g and (ii) content of insoluble fraction in boiling n-heptane (W) in the range of 10 to 99 weight % and shows (iii) relation between relaxation time of rubber component measured by pulse NMR at the temperature of 30.degree. C. ?T.sub.2H.sup.R (30):.mu.s!, relaxation time of rubber component measured by pulse NMR at the temperature of 80.degree. C. ?T.sub.2H.sup.R (80):.mu.s! and the content of insoluble fraction in boiling n-heptane (W) satisfying the following equations:T.sub.2H.sup.R (80).ltoreq.670-2.2.times.WT.sub.2H.sup.R (80)/T.sub.2H.sup.R (30).ltoreq.8.8+0.086.times.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: July 7, 1998
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Masayuki Tsuruoka, Akira Tanaka, Masaru Nakagawa
  • Patent number: 5585052
    Abstract: The invention is a process for the preparation of polybenzazole staple fibers which includes extruding a solution of polybenzazole polymer to form a dope filament, cutting the dope filament to a desired length, and washing and drying the cut filament. It has been discovered that the process of the invention provides a suitable means to prepare staple fibers which does not require the cutting of washed, rigid polybenzazole filaments.
    Type: Grant
    Filed: December 28, 1994
    Date of Patent: December 17, 1996
    Assignee: The Dow Chemical Company
    Inventors: Chieh-Chun Chau, Ritchie A. Wessling, Katsuya Tani, Masaru Nakagawa, Takaharu Ichiryu