Patents by Inventor Masato Iwata

Masato Iwata 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: 20220347175
    Abstract: Provided are: a pyridazinone derivative and/or a pharmaceutically acceptable salt thereof, which is useful as a therapeutic agent and/or a prophylactic agent for diseases in which Nav1.1 is involved and various central nervous system diseases; and a medicine containing the pyridazinone derivative and/or the pharmaceutically acceptable salt thereof as an active ingredient. A compound represented by formula (1) or a pharmaceutically acceptable salt thereof. [In the formula, M1 represents a saturated or partially unsaturated C4-12 carbocyclic group or the like; R1 and R2 independently represent a hydrogen atom or the like; M2 represents a group represented by formula (2a) or the like; X1a, X1b and X1c independently represent N or the like; X2, X3 and X4 independently represent CR3 or the like; A1 and A2 independently represent N or the like; and R3 represents a hydrogen atom or the like.
    Type: Application
    Filed: July 18, 2019
    Publication date: November 3, 2022
    Applicant: Sumitomo Dainippon Pharma Co., Ltd.
    Inventors: Tomoaki NISHIDA, Hiro UEMACHI, Masato IWATA, Hajime SHIBATA, Takuya NISHIMAKI, Saori KIYOSHIGE
  • Patent number: 10741816
    Abstract: According to one embodiment, a battery module includes a block-like battery cell unit in which a plurality of battery cells and a plurality of separators are stacked, and a frame which constrains the battery cell unit in a stacking direction of the battery cells and the separators. The frame is opposed to angular portions of end separators located at respective ends of the battery cell unit, as viewed in the stacking direction, and defines gaps with reference to the angular portions of the end separators.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: August 11, 2020
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takaya Ogawa, Shinya Aikawa, Masato Iwata, Keitaro Hino, Hiroaki Asai
  • Patent number: 10199625
    Abstract: A bus bar according to an embodiment includes a block-shape thick portion, two thin portions provided along the thick portion on both sides, and two bend portions that connect the thick portion and the thin portions, the connected thick portion and the thin portions being elastically deformable.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: February 5, 2019
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takaya Ogawa, Shinya Aikawa, Masato Iwata
  • Publication number: 20180261821
    Abstract: According to one embodiment, a battery module includes a block-like battery cell unit in which a plurality of battery cells and a plurality of separators are stacked, and a frame which constrains the battery cell unit in a stacking direction of the battery cells and the separators. The frame is opposed to angular portions of end separators located at respective ends of the battery cell unit, as viewed in the stacking direction, and defines gaps with reference to the angular portions of the end separators.
    Type: Application
    Filed: June 30, 2017
    Publication date: September 13, 2018
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takaya OGAWA, Shinya AIKAWA, Masato IWATA, Keitaro HINO, Hiroaki ASAI
  • Patent number: 9979003
    Abstract: According to one embodiment, a bus bar electrically connects terminals of a cathode and an anode of a battery module, the battery module being formed by coupling a plurality of battery cells each including the terminals of the cathode and the anode. The bus bar includes a first connection portion formed of an electrically conductive, substantially conical elastic body which abuts on the terminal of a first battery cell of the battery cells; a second connection portion formed of an electrically conductive, substantially conical elastic body which abuts on the terminal of a second battery cell which is different from the first battery cell; and an electrically conductive plate-shaped member in which the first and second connection portions are formed spaced apart in accordance with a distance between the terminals.
    Type: Grant
    Filed: July 20, 2015
    Date of Patent: May 22, 2018
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takaya Ogawa, Masato Iwata
  • Patent number: 9758480
    Abstract: A compound represented by formula (1) (in the formula: ring-D represents a three- to eight-membered hydrocarbon ring; Ra represents an optionally substituted amino C1-6 alkyl group or the like; Rb1 and Rb2 each independently represent a hydrogen atom, a halogen atom, or the like; Rc represents an optionally substituted C6-10 aryl group or the like; Rd represents a hydrogen atom or the like; and ring-Q represents a (hetero)aryl group or the like which may be substituted with a carboxyl group or the like) or a pharmaceutically acceptable salt thereof exhibits an excellent FXIa inhibitory activity, and is useful as a therapeutic agent against thrombosis or the like.
    Type: Grant
    Filed: July 18, 2013
    Date of Patent: September 12, 2017
    Assignee: SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Yohei Ikuma, Nobuhisa Fukuda, Masato Iwata, Hidenori Kimura, Kuniko Suzuki
  • Publication number: 20170256761
    Abstract: According to one embodiment, a battery module includes a block-like battery cell unit in which a plurality of battery cells and a plurality of separators are stacked, and a frame which constrains the battery cell unit in a stacking direction of the battery cells and the separators. The frame is opposed to angular portions of end separators located at respective ends of the battery cell unit, as viewed in the stacking direction, and defines gaps with reference to the angular portions of the end separators.
    Type: Application
    Filed: July 14, 2016
    Publication date: September 7, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takaya OGAWA, Shinya Aikawa, Masato Iwata
  • Patent number: 9718840
    Abstract: Provided are condensed 5-oxazolidinone derivatives and pharmaceutically permissible salts thereof, which have excellent anticoagulant effects, are well absorbed orally, and are useful as therapeutic drugs for thrombosis, etc. Compounds represented by formula (1) and pharmaceutically permissible salts thereof. [In the formula, L represents a C1-C4 alkylene group that may be substituted; R11 and R12 each independently represent a hydrogen atom or C1-C6 alkyl group, etc. that may be substituted; X1 represents N or CR1; R1 and R2 each independently represent a hydrogen atom, halogen atom, or C1-C6 alkyl group; Ra represents a C4-C7 cycloalkyl group, etc. that may be substituted; and Rb represents a hydrogen atom, etc.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: August 1, 2017
    Assignee: SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Yohei Ikuma, Masato Iwata, Chongkwang Lee
  • Publication number: 20170022218
    Abstract: Provided are condensed 5-oxazolidinone derivatives and pharmaceutically permissible salts thereof, which have excellent anticoagulant effects, are well absorbed orally, and are useful as therapeutic drugs for thrombosis, etc. Compounds represented by formula (1) and pharmaceutically permissible salts thereof. [In the formula, L represents a C1-C4 alkylene group that may be substituted; R11 and R12 each independently represent a hydrogen atom or C1-C6 alkyl group, etc. that may be substituted; X1 represents N or CR1; R1 and R2 each independently represent a hydrogen atom, halogen atom, or C1-C6 alkyl group; Ra represents a C4-C7 cycloalkyl group, etc. that may be substituted; and Rb represents a hydrogen atom, etc.
    Type: Application
    Filed: September 12, 2014
    Publication date: January 26, 2017
    Applicant: SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Yohei IKUMA, Masato IWATA, Jongho LEE
  • Publication number: 20170005313
    Abstract: A bus bar according to an embodiment includes a block-shape thick portion, two thin portions provided along the thick portion on both sides, and two bend portions that connect the thick portion and the thin portions, the connected thick portion and the thin portions being elastically deformable.
    Type: Application
    Filed: December 28, 2015
    Publication date: January 5, 2017
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takaya OGAWA, Shinya AIKAWA, Masato IWATA
  • Publication number: 20160344011
    Abstract: According to one embodiment, a bus bar electrically connects terminals of a cathode and an anode of a battery module, the battery module being formed by coupling a plurality of battery cells each including the terminals of the cathode and the anode. The bus bar includes a first connection portion formed of an electrically conductive, substantially conical elastic body which abuts on the terminal of a first battery cell of the battery cells; a second connection portion formed of an electrically conductive, substantially conical elastic body which abuts on the terminal of a second battery cell which is different from the first battery cell; and an electrically conductive plate-shaped member in which the first and second connection portions are formed spaced apart in accordance with a distance between the terminals.
    Type: Application
    Filed: July 20, 2015
    Publication date: November 24, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Takaya OGAWA, Masato Iwata
  • Publication number: 20150210640
    Abstract: A compound represented by formula (1) (in the formula: ring-D represents a three- to eight-membered hydrocarbon ring; Ra represents an optionally substituted amino C1-6 alkyl group or the like; Rb1 and Rb2 each independently represent a hydrogen atom, a halogen atom, or the like; Rc represents an optionally substituted C6-10 aryl group or the like; Rd represents a hydrogen atom or the like; and ring-Q represents a (hetero)aryl group or the like which may be substituted with a carboxyl group or the like) or a pharmaceutically acceptable salt thereof exhibits an excellent FXIa inhibitory activity, and is useful as a therapeutic agent against thrombosis or the like.
    Type: Application
    Filed: July 18, 2013
    Publication date: July 30, 2015
    Applicant: SUMITOMO DAINIPPON PHARMA CO., LTD.
    Inventors: Yohei Ikuma, Nobuhisa Fukuda, Masato Iwata, Hidenori Kimura, Kuniko Suzuki
  • Publication number: 20140057895
    Abstract: The present invention relates to a novel indazole- or pyrrolopyridine-derivative comprising a 5 membered heterocyclic substituent at 1 position thereof which has an agonistic action or a partial agonistic action against serotonin-4 receptor, and a pharmaceutical composition comprising the same.
    Type: Application
    Filed: June 6, 2012
    Publication date: February 27, 2014
    Inventors: Kazuhiro Mizuno, Junya Ikeda, Takanori Nakamura, Masato Iwata, Hiromichi Otaka, Nana Goto
  • Patent number: 7898125
    Abstract: In a fan motor 1 for a vehicle, when opening a vent hole 11 in a cylinder bottom portion 2a of a yoke 2 of the fan motor 1, this is performed so that the opening part cannot be visually observed when the vent hole 11 is viewed head on. The vent hole 11 is formed by dividing the same at a laterally long dividing line so that, at a dividing line X having an angular shape whose left-right direction central portion intrudes into the side of a vent hole upper half portion 12, the upper half portion 12 has a spherical shape that bulges out to the outside of a bottom surface as it is further at the lower side and thus has an inside and outside staggered form with respect to a lower half portion 13.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: March 1, 2011
    Assignee: Mitsuba Corporation
    Inventors: Keiichi Hosoi, Tsugio Yokoo, Masato Iwata
  • Publication number: 20090015082
    Abstract: In a fan motor 1 for a vehicle, when opening a vent hole 11 in a cylinder bottom portion 2a of a yoke 2 of the fan motor 1, this is performed so that the opening part cannot be visually observed when the vent hole 11 is viewed head on. The vent hole 11 is formed by dividing the same at a laterally long dividing line so that, at a dividing line X having an angular shape whose left-right direction central portion intrudes into the side of a vent hole upper half portion 12, the upper half portion 12 has a spherical shape that bulges out to the outside of a bottom surface as it is further at the lower side and thus has an inside and outside staggered form with respect to a lower half portion 13.
    Type: Application
    Filed: May 19, 2006
    Publication date: January 15, 2009
    Applicant: Mitsuba Corporation
    Inventors: Keiichi Hosoi, Tsugio Yokoo, Masato Iwata
  • Patent number: 6182350
    Abstract: An electric motor for driving a piston pump assembled thereto is disclosed wherein a load from the piston pump acts radially on an armature shaft of the electric motor. The electric motor is assembled such that the outer ring of a yoke bearing is connected to a yoke, and the outer ring of a first pump housing bearing is press fit to a pump housing. One end of the armature shaft is press fit to the yoke bearing inner ring, and the other end of the armature shaft is press fit to the first pump housing bearing inner ring. Thus, wobbling of the armature shaft in the axial and radial directions is minimized or eliminated.
    Type: Grant
    Filed: July 21, 1998
    Date of Patent: February 6, 2001
    Assignee: Mitsuba Corporation
    Inventors: Masato Iwata, Hiroshi Hagiwara
  • Patent number: 5977673
    Abstract: An electric motor is constructed by tightening set bolts to secure a yoke opened at one end to a bracket mounted on the yoke open end. The outer ring of bearings is press-fitted into the yoke, the inner ring of the bearings is press-fitted around an armature shaft, and the bearings are free from an undue excessive axial load during the tightening the set bolts, without the need for fixing the outer ring to the yoke. A gap between the inner ring of the bearings and a step portion of the armature shaft for restricting the displacement of the inner ring toward the yoke open end, or a gap between the outer ring of the bearings and the closed end of a bearing housing for restricting the displacement of the outer ring in the direction opposite the direction toward the yoke open end, or the sum of both gaps, prior to tightening the set bolts, is set to be greater than the axial deformation of the yoke resulting from the tightening of the set bolts.
    Type: Grant
    Filed: August 1, 1997
    Date of Patent: November 2, 1999
    Assignee: Mitsuba Corporation
    Inventor: Masato Iwata
  • Patent number: 5942822
    Abstract: An electric motor structure is shown in which a yoke supporting an armature shaft is fixedly secured to a bracket with set bolts passing through the yoke in the axial direction and in which the distances between a pair of brushes and a pair of internal terminals connected thereto are substantially equal to each other. In a base unit, set bolt through holes for allowing the penetration of a pair of set bolts and a pair of brush holders are disposed on diameter lines perpendicular to each other, and further, a pair of internal terminal plates are disposed to straddle the outer circumference of one set bolt. The inserting tip portion of a coupler unit equipped with external terminal plates electrically connected to the internal terminal plates is branched into two sections. When the coupler unit is connected to the internal terminal plates the set bolt is positioned between the branched sections of the coupler unit.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: August 24, 1999
    Assignee: Mitsuba Corporation
    Inventors: Masato Iwata, Eiichi Machida
  • Patent number: 5889345
    Abstract: A waterproof electric motor structure in which a yoke 5 is covered with a bottomed cylindrical waterproof cover 12. An open end edge portion 12a of the waterproof cover 12 is internally engaged with a recessed groove portion 10b of a pump bracket 10 by being abutted thereagainst and sealed by a seal member 13. Through holes 5d, 12c are defined in the yoke 5 and the waterproof cover 12, respectively, and a locking cylinder 12d is formed in the cover side through hole 12c. A coupler 14 assembled to pass through both the through holes 5d, 12c is supported by the locking cylinder 12d in a removal prevention state. Further sealing is made by interposing a seal member 16 between a cover side stepped portion 12f and a coupler side stepped portion 14d.
    Type: Grant
    Filed: July 7, 1997
    Date of Patent: March 30, 1999
    Assignee: Mitsuba Corporation
    Inventors: Masato Iwata, Hiroshi Hagiwara, Eiichi Machida
  • Patent number: 5854522
    Abstract: An electric motor for driving a piston pump assembled thereto is disclosed wherein a load from the piston pump acts radially on an armature shaft of the electric motor. The electric motor is assembled such that the outer ring of a yoke bearing is connected to a yoke, and the outer ring of a first pump housing bearing is press fit to a pump housing. One end of the armature shaft is press fit to the yoke bearing inner ring, and the other end of the armature shaft is press fit to the first pump housing bearing inner ring. Thus, wobbling of the armature shaft in the axial and radial directions is minimized or eliminated.
    Type: Grant
    Filed: June 27, 1997
    Date of Patent: December 29, 1998
    Assignee: Mitsuba Corporation
    Inventors: Masato Iwata, Hiroshi Hagiwara