Patents by Inventor Satoru Nakagawa

Satoru 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: 20230365747
    Abstract: The present invention provides a polyester resin and a hollow molded body containing reduced amounts of cyclic trimer and aluminum-based foreign matter, with maintained catalytic activity and a reduced catalyst cost. A polyester resin, comprising an aluminum compound and a phosphorus compound, and satisfying the following (1) to (3): (1) a content of aluminum element in the polyester resin is 9 to 19 ppm by mass, (2) a content of phosphorus element in the polyester resin is 22 to 40 ppm by mass. and (3) a mole ratio of phosphorus element to aluminum element in the polyester resin is 1.55 or more and 1.85 or less.
    Type: Application
    Filed: September 2, 2021
    Publication date: November 16, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Satoru NAKAGAWA, Kosuke UOTANI, Shinya KANETAKA
  • Publication number: 20230250228
    Abstract: A method for producing polyester resin containing an ethylene terephthalate structural unit of not less than 85 mol%, the method comprising: a melt-polymerization step of continuously performing melt-polymerization in two or more polymerization vessels by using an aluminium compound and a phosphorus compound as a polymerization catalyst; and a solid phase polymerization step of performing solid phase polymerization after the melt-polymerization step, wherein a polymerization in a final polymerization vessel of the melt-polymerization step satisfies a condition represented by the following formula: 410?T*RT*(P/Al)?580, wherein T represents a temperature (°C) in the final polymerization vessel, RT represents residence time (hour) in the final polymerization vessel, and P/Al represents a molar ratio of phosphorus element to aluminium element in the polyester resin.
    Type: Application
    Filed: March 8, 2021
    Publication date: August 10, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Satoru NAKAGAWA, Kosuke UOTANI, Shinya KANETAKA
  • Publication number: 20230151208
    Abstract: The present invention relates to a copolymerized polyester resin which can give film characteristics being suitable for a use as a heat-shrinkable label and which is excellent in the recycling property. According to the present invention, there is provided a copolymerized polyester resin which contains dicarboxylic acid and diol as constituting components, wherein the copolymerized polyester resin contains terephthalic acid as a main component of a dicarboxylic acid component, and contains ethylene glycol as a main component of a diol component, wherein a content of neopentyl glycol is from 18 to 32% by mole and a content of diethylene glycol is from 7 to 15% by mole when a total amount of the whole diol component is taken as 100% by mole, and wherein a molar proportion of each phosphorus compound contained in the copolymerized polyester resin and having a specific structure satisfies the specific inequality (1).
    Type: Application
    Filed: April 9, 2021
    Publication date: May 18, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Satoru NAKAGAWA, Kosuke UOTANI, Shinya KANETAKA
  • Publication number: 20230002551
    Abstract: The present invention is to provide a high-quality polyester resin that is produced by using a polymerization catalyst containing an aluminum compound and a phosphorus compound, that can reduce a catalyst cost, for which polymerization activity is high, and in which there is less foreign matter. The polyester resin contains an aluminum compound and a phosphorus compound used as a catalyst, and the amount of aluminum atom contained in the polyester resin is 9 to 20 ppm, the amount of phosphorus atom contained in the polyester resin is 13 to 31 ppm, a mole ratio of the phosphorus atom to the aluminum atom in the polyester resin is 1.32 to 1.80.
    Type: Application
    Filed: December 14, 2020
    Publication date: January 5, 2023
    Applicant: TOYOBO CO., LTD.
    Inventors: Satoru NAKAGAWA, Kosuke UOTANI, Shinya KANETAKA
  • Publication number: 20220049049
    Abstract: The invention provides a polyester resin for heat-shrinkable film which contains terephthalic acid as a main component of a dicarboxylic acid component, contains ethylene glycol as a main component of a diol component, and contains from 18 to 32% by mole of neopentyl glycol and from 7 to 15% by mole of diethylene glycol when a total amount of the whole diol component in total polyester resin components is taken as 100% by mole. The polyester resin has (i) an intrinsic viscosity (IV) of not less than 0.65 and less than 0.70 dl/g, (ii) a carboxyl end group concentration (AV) of 8-25 eq/t, (iii) a color b value of 1.0-8.0 in an L*a*b* color system, and (iv) aluminum and phosphorus atoms, wherein the aluminum atoms are present in an amount of 15-40 ppm, and wherein the molar ratio of the phosphorus atoms to the aluminum atoms is 1.8-2.6.
    Type: Application
    Filed: September 25, 2019
    Publication date: February 17, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Satoru NAKAGAWA, Kosuke UOTANI, Hideto OHASHI, Masayuki HARUTA, Shintaro ISHIMARU
  • Publication number: 20220041800
    Abstract: The invention provides a copolymerized polyester resin which contains terephthalic acid as a main component of a dicarboxylic acid component; and contains ethylene glycol as a main component of a diol component, wherein a content of neopentyl glycol is more than 15% by mole and not more than 40% by mole and a content of diethylene glycol is from 6 to 20% by mole when a total amount of the whole diol component is taken as 100% by mole, wherein a content of a cyclic dimer consisting of terephthalic acid, neopentyl glycol and diethylene glycol is 5000 ppm or less, and wherein a content of a cyclic trimer consisting of terephthalic acid and ethylene glycol is 5000 ppm or less.
    Type: Application
    Filed: October 28, 2019
    Publication date: February 10, 2022
    Applicant: TOYOBO CO., LTD.
    Inventors: Satoru NAKAGAWA, Hideto OHASHI, Nobuyuki HIRONAKA, Hironao SASAKI, Kosuke UOTANI, Keiichiro TOGAWA
  • Patent number: 10505911
    Abstract: There is provided an information processing method of an information processing device, including acquiring tag-unique information unique to an IC tag from the IC tag through near field communication, acquiring device-unique information unique to the information processing device, transmitting the acquired tag-unique information and the acquired device-unique information to an outside, and receiving, from the outside, an authentication result of the acquired tag-unique information and a verification result of right information for using the IC tag, which are obtained based on the transmitted tag-unique information and device-unique information.
    Type: Grant
    Filed: March 20, 2017
    Date of Patent: December 10, 2019
    Assignee: FELICA NETWORKS, INC.
    Inventors: Hiroyuki Hirama, Satoru Nakagawa
  • Patent number: 9932451
    Abstract: The present invention is a polyester composition for a masterbatch, which comprises a polyester, a magnesium compound, an alkali metal compound and a phosphorus compound, wherein magnesium atoms, alkali metal atoms and phosphorus atoms are contained in amounts of 400 to 2700 ppm by mass, 40 to 270 ppm by mass and 200 to 1700 ppm by mass, respectively, in the polyester composition, the melt resistivity of the polyester composition is 0.005×108 to 0.05×108 ?·cm, and few contaminant particles are observed in the polyester composition under specified conditions. The polyester composition for a masterbatch has a satisfactorily low melt resistivity, contains few contaminant particles, and has an excellent color hue and excellent thermal stability.
    Type: Grant
    Filed: April 8, 2015
    Date of Patent: April 3, 2018
    Assignee: TOYOBO CO., LTD.
    Inventors: Kunihiro Maeda, Hideto Ohashi, Satoru Nakagawa
  • Publication number: 20170195326
    Abstract: There is provided an information processing method of an information processing device, including acquiring tag-unique information unique to an IC tag from the IC tag through near field communication, acquiring device-unique information unique to the information processing device, transmitting the acquired tag-unique information and the acquired device-unique information to an outside, and receiving, from the outside, an authentication result of the acquired tag-unique information and a verification result of right information for using the IC tag, which are obtained based on the transmitted tag-unique information and device-unique information.
    Type: Application
    Filed: March 20, 2017
    Publication date: July 6, 2017
    Applicant: FeliCa Networks, Inc.
    Inventors: Hiroyuki HIRAMA, Satoru NAKAGAWA
  • Patent number: 9641506
    Abstract: There is provided an information processing method of an information processing device, including acquiring tag-unique information unique to an IC tag from the IC tag through near field communication, acquiring device-unique information unique to the information processing device, transmitting the acquired tag-unique information and the acquired device-unique information to an outside, and receiving, from the outside, an authentication result of the acquired tag-unique information and a verification result of right information for using the IC tag, which are obtained based on the transmitted tag-unique information and device-unique information.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: May 2, 2017
    Assignee: FeliCa Networks, Inc.
    Inventors: Hiroyuki Hirama, Satoru Nakagawa
  • Publication number: 20170029575
    Abstract: The present invention is a polyester composition for a masterbatch, which comprises a polyester, a magnesium compound, an alkali metal compound and a phosphorus compound, wherein magnesium atoms, alkali metal atoms and phosphorus atoms are contained in amounts of 400 to 2700 ppm by mass, 40 to 270 ppm by mass and 200 to 1700 ppm by mass, respectively, in the polyester composition, the melt resistivity of the polyester composition is 0.005×108 to 0.05×108 ?·cm, and few contaminant particles are observed in the polyester composition under specified conditions. The polyester composition for a masterbatch has a satisfactorily low melt resistivity, contains few contaminant particles, and has an excellent color hue and excellent thermal stability.
    Type: Application
    Filed: April 8, 2015
    Publication date: February 2, 2017
    Applicant: TOYOBO CO., LTD.
    Inventors: Kunihiro MAEDA, Hideto OHASHI, Satoru NAKAGAWA
  • Patent number: 9475911
    Abstract: The present invention is a polyester composition for a film, wherein the polyester composition comprises a masterbatch polyester composition including 1.0 to 2.0%, by mass of inorganic particles having an average particle diameter of 0.5 to 3.0 ?m and having been prepared using a polycondensation catalyst containing, and an inorganic particle-free polyester resin in a mass ratio of 1:15 to 35; and wherein the polyester composition will cause little filter clogging and can provide a polyester film that is excellent in slipping properties, running properties and wear resistance and will suffer from little deterioration in quality due to defects or insoluble particles located on the film.
    Type: Grant
    Filed: March 21, 2013
    Date of Patent: October 25, 2016
    Assignee: TOYOBO CO., LTD.
    Inventors: Satoru Nakagawa, Hideto Ohashi, Kunihiro Maeda
  • Publication number: 20150281202
    Abstract: There is provided an information processing method of an information processing device, including acquiring tag-unique information unique to an IC tag from the IC tag through near field communication, acquiring device-unique information unique to the information processing device, transmitting the acquired tag-unique information and the acquired device-unique information to an outside, and receiving, from the outside, an authentication result of the acquired tag-unique information and a verification result of right information for using the IC tag, which are obtained based on the transmitted tag-unique information and device-unique information.
    Type: Application
    Filed: March 17, 2015
    Publication date: October 1, 2015
    Applicant: FELICA NETWORKS, INC.
    Inventors: Hiroyuki HIRAMA, Satoru NAKAGAWA
  • Publication number: 20150087762
    Abstract: The present invention is a polyester composition for a film, wherein the polyester composition comprises a masterbatch polyester composition including 1.0 to 2.0%, by mass of inorganic particles having an average particle diameter of 0.5 to 3.0 ?m and having been prepared using a polycondensation catalyst containing, and an inorganic particle-free polyester resin in a mass ratio of 1:15 to 35; and wherein the polyester composition will cause little filter clogging and can provide a polyester film that is excellent in slipping properties, running properties and wear resistance and will suffer from little deterioration in quality due to defects or insoluble particles located on the film.
    Type: Application
    Filed: March 21, 2013
    Publication date: March 26, 2015
    Inventors: Satoru Nakagawa, Hideto Ohashi, Kunihiro Maeda
  • Patent number: 8871252
    Abstract: The present invention provides pH-responsive liposomes which are capable of holding a desired substance in an acidic pH environment and releasing the desired substance in a basic pH environment. The present invention uses pH-responsive liposomes comprising, as constituent lipids thereof, a cationic amphiphilic molecule and at least one of an anionic amphiphilic molecule and a twitterionic amphiphilic molecule, wherein the liposomes, when dispersed in an aqueous medium, have a positive zeta potential in an acidic environment where the dispersion has a pH of less than 6.5 and have a negative zeta potential in a basic environment where the dispersion has a pH of 8.5 or more.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: October 28, 2014
    Assignee: Nanotheta Co, Ltd.
    Inventors: Shinji Takeoka, Yousuke Obata, Satoru Nakagawa, Shinya Ohtsubo, Yuji Kawasaki
  • Patent number: 8770056
    Abstract: In a joystick device where a tilting operation direction of an operation shaft is detected based on positional change of a magnet relative to a magnetic sensor, the magnet being moved with tilting of the operation shaft, a slider is arranged between a base facing a board fixed to a case and a magnet holder to which the operation shaft is swingably coupled; the magnet holder is joined to the slider such that the slider guides relative movement of the holder in a first linear direction orthogonal to the axis of the operation shaft but prevents relative movement of the holder in a second linear direction orthogonal to the first direction; and a guide mechanism configured to guide movement of the slider in the second direction is provided between the slider and the base. This prevents variation in the detection accuracy regardless of tilting of the shaft.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: July 8, 2014
    Assignee: Toyo Denso Co., Ltd.
    Inventors: Takanori Terao, Satoru Nakagawa, Hideaki Ito
  • Patent number: 8742882
    Abstract: The invention provides a touch panel capable of effectively preventing a distortion of an electric potential distribution, thereby increasing an input region of the touch panel. A touch panel including a resistive layer formed on one of surfaces of a substrate and a frame-shaped electrode portion 21 provided along four sides of the resistive layer, wherein each side of the frame-shaped electrode portion 21 is constituted in a broken line pattern having a first split electrode 25a disposed on both ends respectively and a plurality of second split electrodes 25b disposed between the first split electrodes 25a, second resistance values R_i between the second split electrodes 25b are set to be equal to each other, and a first resistance value R_s between the first split electrode 25a and the second split electrode 25b which is adjacent to the first split electrode 25a is different from the second resistance value R_i.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: June 3, 2014
    Assignee: Gunze Limited
    Inventors: Hisao Itaya, Shinya Nishihara, Satoru Nakagawa
  • Publication number: 20130285788
    Abstract: The invention provides a touch panel capable of effectively preventing a distortion of an electric potential distribution, thereby increasing an input region of the touch panel. A touch panel including a resistive layer formed on one of surfaces of a substrate and a frame-shaped electrode portion 21 provided along four sides of the resistive layer, wherein each side of the frame-shaped electrode portion 21 is constituted in a broken line pattern having a first split electrode 25a disposed on both ends respectively and a plurality of second split electrodes 25b disposed between the first split electrodes 25a, second resistance values R_i between the second split electrodes 25b are set to be equal to each other, and a first resistance value R_s between the first split electrode 25a and the second split electrode 25b which is adjacent to the first split electrode 25a is different from the second resistance value R_i.
    Type: Application
    Filed: June 1, 2011
    Publication date: October 31, 2013
    Inventors: Hisao Itaya, Shinya Nishihara, Satoru Nakagawa
  • Patent number: 8416040
    Abstract: In a joystick device, a rotation position detector for detecting a rotation position of a rotatable cylinder having one end coupled with a dial knob is provided between the cylinder and a case. The detector includes a drive gear provided around the cylinder, a rotary body which has a driven gear provided around its outer periphery and is in mesh with the drive gear, multiple magnets provided on the rotary body, and a magnetic sensor provided in the case to face one end portion of the rotary body to detect the rotation position of the cylinder based on positional change relative to the magnets along with rotation of the rotary body. Such arrangement enhances the degree of design freedom for arranging a magnetic sensor in the axial direction of the cylinder in detecting a rotation position of the cylinder by the sensor and reduces a necessary number of magnets.
    Type: Grant
    Filed: April 10, 2012
    Date of Patent: April 9, 2013
    Assignee: Toyo Denso Co., Ltd.
    Inventors: Takanori Terao, Satoru Nakagawa
  • Publication number: 20120260763
    Abstract: In a joystick device, a rotation position detector for detecting a rotation position of a rotatable cylinder having one end coupled with a dial knob is provided between the cylinder and a case. The detector includes a drive gear provided around the cylinder, a rotary body which has a driven gear provided around its outer periphery and is in mesh with the drive gear, multiple magnets provided on the rotary body, and a magnetic sensor provided in the case to face one end portion of the rotary body to detect the rotation position of the cylinder based on positional change relative to the magnets along with rotation of the rotary body. Such arrangement enhances the degree of design freedom for arranging a magnetic sensor in the axial direction of the cylinder in detecting a rotation position of the cylinder by the sensor and reduces a necessary number of magnets.
    Type: Application
    Filed: April 10, 2012
    Publication date: October 18, 2012
    Applicant: TOYO DENSO CO., LTD.
    Inventors: Takanori TERAO, Satoru NAKAGAWA