Patents by Inventor Mitsuhiro Matsuzaki

Mitsuhiro Matsuzaki 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: 20190358186
    Abstract: A medical composition for reducing the rate of new-onset diabetes caused by administration of a statin or for inhibiting an increase in blood glucose level by administration of a statin, the composition containing at least one ingredient selected from the group consisting of icosapentaenoic acid and pharmaceutically acceptable salts or esters thereof as an inactive ingredient.
    Type: Application
    Filed: August 13, 2019
    Publication date: November 28, 2019
    Applicant: MOCHIDA PHARMACEUTICAL CO., LTD.
    Inventors: Masahiko OHTA, Shinichi OIKAWA, Mitsuhiro YOKOYAMA, Hideki ORIGASA, Masunori MATSUZAKI, Yuji MATSUZAWA, Yasushi SAITO
  • Publication number: 20180258248
    Abstract: Object: To provide heat-expandable microspheres with which large-diameter foamed particles which are lightweight and have enhanced strength, cushioning properties, and the like can be formed. Resolution Means: Heat-expandable microspheres having a foaming agent encapsulated in an outer shell of a polymer, the heat-expandable microspheres having an average particle size (D50) before foaming of from 100 to 500 ?m, and a coefficient of variation of a particle size distribution before foaming (logarithmic scale) of not greater than 15%.
    Type: Application
    Filed: December 2, 2015
    Publication date: September 13, 2018
    Inventors: Tetsuo EJIRI, Tomohisa HASEGAWA, Daisuke SATO, Kazunori SATOU, Mitsuhiro MATSUZAKI
  • Patent number: 9908974
    Abstract: The present invention provides a production method and a production apparatus for a polyarylene sulfide (PAS), thus the formation of a floating polymer and the leakage of the floating polymer to the outside of the vessel in a washing step are prevented, to achieve steady production of the polymer with high quality, to improve the yield of the polymer and to reduce environmental load, wherein the floating polymer refers to a particles of the polymer which are floating on the surface of a washing solution, in the upper part of the inside of a washing vessel, as a result of the adhesion of a gas onto the surface of the particles of the polymer.
    Type: Grant
    Filed: April 21, 2015
    Date of Patent: March 6, 2018
    Assignee: Kureha Corporation
    Inventors: Masanori Kobayashi, Tomoyoshi Koizumi, Mitsuhiro Matsuzaki, Hirohito Kawama
  • Publication number: 20180051153
    Abstract: Provided are heat-expandable microspheres in which the water content can be adjusted easily and quickly by efficiently dehydrating the water present in the heat-expandable microspheres. Resolution Means Heat-expandable microspheres having a structure in which a foaming agent is encapsulated inside an outer shell formed from a polymer, the average value of the degrees of circularity, calculated based on a parameter indicating a particle diameter of each particle of the heat-expandable microspheres and a parameter indicating the circumference, being 0.985 or less are provided.
    Type: Application
    Filed: March 30, 2016
    Publication date: February 22, 2018
    Inventors: Tetsuo EJIRI, Tomohisa HASEGAWA, Mitsuhiro MATSUZAKI, Yasuhiro SUZUKI, Shintaro NOMURA
  • Publication number: 20170029570
    Abstract: The present invention provides a production method and a production apparatus for a polyarylene sulfide (PAS), thus the formation of a floating polymer and the leakage of the floating polymer to the outside of the vessel in a washing step are prevented, to achieve steady production of the polymer with high quality, to improve the yield of the polymer and to reduce environmental load, wherein the floating polymer refers to a particles of the polymer which are floating on the surface of a washing solution, in the upper part of the inside of a washing vessel, as a result of the adhesion of a gas onto the surface of the particles of the polymer.
    Type: Application
    Filed: April 21, 2015
    Publication date: February 2, 2017
    Applicant: Kureha Corporation
    Inventors: Masanori KOBAYASHI, Tomoyoshi KOIZUMI, Mitsuhiro MATSUZAKI, Hirohito KAWAMA
  • Patent number: 9080859
    Abstract: A housing including a base and cover has an open space that is open to the atmosphere and a closed space that is closed to the atmosphere. The open space contains a laser having a low operating temperature. The closed space contains a heat generating element and the like, which have higher operating temperatures than the laser. The heat generating element is in close contact with the base, which also serves as a heatsink, so that the heat generating element is cooled. Most parts of a motor, which is a heat generating member, are disposed in the closed space. A fan is diagonally disposed with respect to side surfaces of the heat generating element, which has a rectangular shape and flat side surfaces, so as to efficiently blow air toward the heat generating element disposed in the closed space.
    Type: Grant
    Filed: September 2, 2010
    Date of Patent: July 14, 2015
    Assignee: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Mikio Oshima, Mitsuhiro Matsuzaki, Hiroyuki Maezawa
  • Patent number: 9068047
    Abstract: Disclosed is a process for producing poly(arylene sulfide) which includes: a polymerization step of polymerizing a dihalogenated aromatic compound and at least one sulfur source selected from the group consisting of alkali metal sulfides and alkali metal hydrogen sulfides in an organic amide solvent, preferably in the presence of a phase separating agent; a separation step of separating a polymer from a reaction liquid containing a produced polymer after the polymerization step; a washing step of washing the polymer with a washing liquid that consists of water and/or an organic solvent; and a separated liquid treatment step of bringing both a separated liquid that has been recovered after the separation of the polymer in the separation step and a separated liquid containing a wash waste liquid that has been recovered after the separation of the polymer in the washing step into contact with an alkaline compound. Also disclosed is poly(arylene sulfide).
    Type: Grant
    Filed: April 21, 2011
    Date of Patent: June 30, 2015
    Assignee: KUREHA CORPORATION
    Inventors: Yoshihiro Ichinose, Masanori Kobayashi, Tomoyoshi Koizumi, Mitsuhiro Matsuzaki
  • Patent number: 8981041
    Abstract: A production process of a poly(arylene sulfide) (PAS), including a polymerization step of forming a PAS from a sulfur source that is an alkali metal (hydro)sulfides and a dihalo-aromatic compound in an organic amide solvent; a separation step of PAS particles; a countercurrent washing step that is a step of washing the PAS particles with water and/or an organic solvent, wherein a downward current of a PAS particle-containing aqueous slurry is continuously brought into countercurrent contact with an upward current of a washing liquid; a PAS particle re-separation step of capturing a washing waste liquid by a PAS particle re-separating unit, in which a micro-slit filter has been installed, and then re-separating the PAS particles from the micro-slit filter, preferably using a backwashing unit, to discharge them; and a collecting step of the PAS particles discharged, and a production apparatus of a poly(arylene sulfide).
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: March 17, 2015
    Assignee: Kureha Corporation
    Inventors: Takayuki Kimura, Tomoyoshi Koizumi, Mitsuhiro Matsuzaki
  • Publication number: 20130116401
    Abstract: A production process of a poly(arylene sulfide) (PAS), including a polymerization step of forming a PAS from a sulfur source that is an alkali metal (hydro)sulfides and a dihalo-aromatic compound in an organic amide solvent; a separation step of PAS particles; a countercurrent washing step that is a step of washing the PAS particles with water and/or an organic solvent, wherein a downward current of a PAS particle-containing aqueous slurry is continuously brought into countercurrent contact with an upward current of a washing liquid; a PAS particle re-separation step of capturing a washing waste liquid by a PAS particle re-separating unit, in which a micro-slit filter has been installed, and then re-separating the PAS particles from the micro-slit filter, preferably using a backwashing unit, to discharge them; and a collecting step of the PAS particles discharged, and a production apparatus of a poly(arylene sulfide).
    Type: Application
    Filed: July 6, 2011
    Publication date: May 9, 2013
    Inventors: Takayuki Kimura, Tomoyoshi Koizumi, Mitsuhiro Matsuzaki
  • Publication number: 20130068256
    Abstract: A longitudinal solid-liquid countercurrent contact method and apparatus are provided in which an aqueous slurry containing solid particles is supplied from an upper part and is caused to pass through a plurality of contact-processing chambers connected in a vertical direction while being caused to proceed downward, a contacting liquid is supplied from a lower part and is caused to pass through the plurality of contact-processing chambers connected in the vertical direction while being caused to proceed upward, and the aqueous slurry and the contacting liquid are caused to be continuously subjected to countercurrent contact, wherein the viscosity of a liquid phase in at least one of the contact-processing chambers is controlled, and especially the viscosity ?1 of a liquid phase in a contact-processing chamber positioned at an uppermost part is controlled to fall within a range of 0.9??1/?0?2.
    Type: Application
    Filed: April 20, 2011
    Publication date: March 21, 2013
    Applicant: Kureha Corporation
    Inventors: Masanori Kobayashi, Hirohito Kawama, Koichi Suzuki, Mitsuhiro Matsuzaki
  • Publication number: 20130065054
    Abstract: Disclosed is a process for producing poly(arylene sulfide) which includes: a polymerization step of polymerizing a dihalogenated aromatic compound and at least one sulfur source selected from the group consisting of alkali metal sulfides and alkali metal hydrogen sulfides in an organic amide solvent, preferably in the presence of a phase separating agent; a separation step of separating a polymer from a reaction liquid containing a produced polymer after the polymerization step; a washing step of washing the polymer with a washing liquid that consists of water and/or an organic solvent; and a separated liquid treatment step of bringing both a separated liquid that has been recovered after the separation of the polymer in the separation step and a separated liquid containing a wash waste liquid that has been recovered after the separation of the polymer in the washing step into contact with an alkaline compound. Also disclosed is poly(arylene sulfide).
    Type: Application
    Filed: April 21, 2011
    Publication date: March 14, 2013
    Applicant: KUREHA CORPORATION
    Inventors: Yoshihiro Ichinose, Masanori Kobayashi, Tomoyoshi Koizumi, Mitsuhiro Matsuzaki
  • Patent number: 8211997
    Abstract: In a process for producing polyarylene sulfide, comprising: reacting an alkali sulfide source and an aromatic dihalide compound in a polar organic solvent to obtain a polymerizate slurry containing polyarylene sulfide particles, by-produced alkali metal salt fine particles and the polar organic solvent, and recovering the polyarylene sulfide particles washed from the polymerizate slurry; the polymerizate slurry is separated by sieving into the polyarylene sulfide particles and a slurry containing the alkali metal salt fine particles, and the separated polyarylene sulfide particles are subjected to a washing step wherein the polyarylene sulfides are introduced into a countercurrent washing apparatus enclosing a movable part and subjected therein to continuous countercurrent contact with a washing liquid. As a result, polyarylene sulfide particles of good quality are produced at a good yield, while pursuing process rationalization.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: July 3, 2012
    Assignee: Kureha Corporation
    Inventors: Mitsuhiro Matsuzaki, Katsumi Horikoshi, Masanori Kobayashi
  • Patent number: 8058320
    Abstract: A thermally foamable microsphere having a structure that a foaming agent is encapsulated in an outer shell formed from a polymer, wherein the foaming agent contains isododecane, and a production process of the thermally foamable microsphere by a suspension polymerization process using a polymerizable monomer and a foaming agent containing dodecane.
    Type: Grant
    Filed: September 13, 2005
    Date of Patent: November 15, 2011
    Assignee: Kureha Corporation
    Inventors: Tetsuo Ejiri, Mitsuhiro Matsuzaki, Shunzo Endo
  • Patent number: 7989998
    Abstract: With a motor with an encoder of the invention, a stopper gap formed between a stopper formed on an outer circumferential surface of a hub of the encoder and a bearing cover of an anti-load side bracket is set smaller than an encoder gap to prevent that a rotating disk is made contact with a fixed slit even when an excessive force is applied to an output shaft of the motor with the encoder.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: August 2, 2011
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Yoshiyuki Nagamatsu, Mitsuhiro Matsuzaki, Yukio Tsutsui, Shirou Yoshidomi
  • Patent number: 7939973
    Abstract: A canned linear motor armature comprising an armature winding constituted by a coil group including a plurality of formed coils formed in a flat plate shape. A metal-made chassis is provided to surround the armature winding by a frame-like shape. A can hermetically closes two opening portions of the chassis. The coil group is interposed by a wiring board having a wiring portion and a resin-made frame of a bath tub shape. The frame is opened only at a face side of the wiring board. A periphery of the formed coils surrounded by the wiring board and the frame is configured to be injection-molded by a mold or a potting resin.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: May 10, 2011
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Kenichi Sadakane, Toshikazu Hamao, Mitsuhiro Matsuzaki
  • Patent number: 7936096
    Abstract: A canned linear motor armature includes an armature winding, a picture-frame-shaped casing, a flat can, and a plurality of refrigerant flow channels. The armature winding includes a coil. The picture-frame-shaped casing has an opening and encloses the armature winding. The flat can has a plate surface to close and seal the opening of the picture-frame-shaped casing. The plurality of refrigerant flow channels are provided within the can to face the coil of the armature winding.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: May 3, 2011
    Assignee: Kabushiki Kaisha Yaskawa Denki
    Inventors: Toru Shikayama, Muhammad Enamul Kabir, Akihito Toyota, Kenichi Sadakane, Shusaku Yoshida, Mitsuhiro Matsuzaki
  • Publication number: 20100329832
    Abstract: A housing including a base and cover has an open space that is open to the atmosphere and a closed space that is closed to the atmosphere. The open space contains a laser having a low operating temperature. The closed space contains a heat generating element and the like, which have higher operating temperatures than the laser. The heat generating element is in close contact with the base, which also serves as a heatsink, so that the heat generating element is cooled. Most parts of a motor, which is a heat generating member, are disposed in the closed space. A fan is diagonally disposed with respect to side surfaces of the heat generating element, which has a rectangular shape and flat side surfaces, so as to efficiently blow air toward the heat generating element disposed in the closed space.
    Type: Application
    Filed: September 2, 2010
    Publication date: December 30, 2010
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Mikio OSHIMA, Mitsuhiro Matsuzaki, Hiroyuki Maezawa
  • Patent number: 7767783
    Abstract: A dehydration step is conducted by heating a mixture containing an organic amide solvent and a sulfur source including an alkali metal hydrosulfide, and a part of an overall charged amount of an alkali metal hydroxide as needed. The mixture remaining within the system after the dehydration step is mixed with a dihalo-aromatic compound, the resultant mixture is heated to conduct a polymerization reaction, and the alkali metal hydroxide is added to the mixture for polymerization reaction continuously or in portions to control the pH of the mixture for polymerization reaction within a range of from 7 to 12.5 from the beginning to the end of the polymerization reaction. The poly(arylene sulfide) according to the present invention has a nitrogen content of at most 800 ppm.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: August 3, 2010
    Assignee: Kureha Corporation
    Inventors: Hirohito Kawama, Mitsuhiro Matsuzaki, Michihisa Miyahara, Koichi Suzuki, Hiroyuki Sato
  • Publication number: 20100060112
    Abstract: With a motor with an encoder of the invention, a stopper gap formed between a stopper formed on an outer circumferential surface of a hub of the encoder and a bearing cover of an anti-load side bracket is set smaller than an encoder gap to prevent that a rotating disk is made contact with a fixed slit even when an excessive force is applied to an output shaft of the motor with the encoder.
    Type: Application
    Filed: August 10, 2009
    Publication date: March 11, 2010
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Yoshiyuki NAGAMATSU, Mitsuhiro MATSUZAKI, Yukio TSUTSUI, Shirou YOSHIDOMI
  • Publication number: 20090315414
    Abstract: A canned linear motor armature includes an armature winding, a picture-frame-shaped casing, a flat can, and a plurality of refrigerant flow channels. The armature winding includes a coil. The picture-frame-shaped casing has an opening and encloses the armature winding. The flat can has a plate surface to close and seal the opening of the picture-frame-shaped casing. The plurality of refrigerant flow channels are provided within the can to face the coil of the armature winding.
    Type: Application
    Filed: August 28, 2009
    Publication date: December 24, 2009
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Toru SHIKAYAMA, Muhammad Enamul Kabir, Akihito Toyota, Kenichi Sadakane, Shusaku Yoshida, Mitsuhiro Matsuzaki