Patents by Inventor Masaki Murakami

Masaki Murakami 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: 20240132736
    Abstract: An object is to obtain a white ink which is easy to redisperse and is re-dispersible by being shaken several tens of times with weak force at most, or alternatively, without being shaken. As a solution, a white ink composition is provided which contains 50.0% by mass or less of a titanium oxide pigment treated with silica, alumina, and contains an organic compound in a solid content of the white ink composition, and contains 5.0 parts by mass or more of an alkali-soluble resin whose weight-average molecular weight is 28,000 to 100,000 relative to 100 parts by mass of the titanium oxide pigment, and further contains a water-dispersible resin and water.
    Type: Application
    Filed: November 16, 2021
    Publication date: April 25, 2024
    Inventors: Hiroyuki KONISHI, Yuya WATANABE, Ryuta NODA, Masaki MURAKAMI, Satoshi HIRAKAWA
  • Patent number: 11965130
    Abstract: A borehole cement slurry additive that is capable of suppressing the generation of free water from cement slurries in any environment, whether cold regions, mild regions, or hot regions; and a method for storing the same. The borehole cement slurry additive contains: an aqueous dispersion of silica having an average particle size of 3-200 nm as determined via dynamic light scattering; and a compound having an alcoholic hydroxyl group as a dispersion stabilizer, the compound being included in an amount of 1-30 mol per 1,000 g dispersion medium in the aqueous silica dispersion.
    Type: Grant
    Filed: April 7, 2020
    Date of Patent: April 23, 2024
    Assignee: NISSAN CHEMICAL CORPORATION
    Inventors: Satoru Murakami, Masaki Kimata, Isao Oota
  • Publication number: 20240124735
    Abstract: An object is to obtain an ink set capable of forming images of excellent image quality even when an acidic atmosphere, arising from use of a volatile acid in a pretreatment solution, is present in the vicinity of ink nozzles, etc. As a solution, an ink set containing a pretreatment solution and an ink composition is provided, wherein: the pretreatment solution contains an organic acid having a boiling point of 120° C. or lower at 1 atmospheric pressure; and the ink composition contains a pigment and an alkali-soluble resin having an acid value of 200 mgKOH/g or higher or crosslinked substance thereof accounting for 1.8% by mass or more in the ink composition, and further contains a water-dispersible resin and water.
    Type: Application
    Filed: November 12, 2021
    Publication date: April 18, 2024
    Inventors: Hiroyuki KONISHI, Ryuta NODA, Masaki MURAKAMI, Masahiro UEKI, Satoshi HIRAKAWA
  • Publication number: 20230088100
    Abstract: A strap is connectable to a battery pack without any specific portion for connection to the strap. A battery holder connects a strap to a battery pack detachably attachable to a tool body of a power tool. The battery holder includes a belt member that is detachably wound around an overall circumference of the battery pack, and a strap coupler to which the strap is detachably connectable.
    Type: Application
    Filed: August 4, 2022
    Publication date: March 23, 2023
    Applicant: MAKITA CORPORATION
    Inventor: Masaki MURAKAMI
  • Patent number: 11331732
    Abstract: Twisting of a locking member due to cogging torque is reduced without lowering the locking and unlocking operability for a user. A power tool includes a housing, an electric motor located inside the housing and including a permanent magnet, a shaft rotatable about an axis relative to the housing to transmit power from the electric motor, a locking member movable between a lock position and an unlock position in a nonenergized state of the electric motor and engageable with the shaft at the lock position to lock rotation of the shaft, and an abutting member that applies, to the locking member at the lock position, a force in a direction opposite to an axial torque caused by the permanent magnet and applied to the locking member.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: May 17, 2022
    Assignee: MAKITA CORPORATION
    Inventors: Toshiyuki Kani, Hiromu Goto, Kenji Hamada, Masaki Murakami
  • Publication number: 20210395488
    Abstract: The resin composition according to the present invention and a molded article of the composition contain a resin and a cyclic phosphazene compound represented by formula (1). A resin composition that has high flame retardancy while maintaining resin-derived mechanical strength, and a molded article of the composition are provided by using this configuration.
    Type: Application
    Filed: October 9, 2019
    Publication date: December 23, 2021
    Applicant: OTSUKA CHEMICAL CO., LTD.
    Inventors: Junji NANTAKU, Masaki MURAKAMI
  • Patent number: 11179865
    Abstract: A lever device is configured such that, when first and second plates are relatively moved in a direction in which a second end part of the first plate and a fourth end part of the second plate are close to each other from a state in which the second end part and the fourth end part are separated from each other in an axial direction of a bolt, the first plate is rotated around a fulcrum positioned between a first engagement part and the second end part in the crossing direction so that the first plate is moved from an engaged position where the first engagement part and a non-circular part of the bolt or a nut are engaged to a non-engaged position where they are not engaged, and thereby removing a restriction of the relative rotation of the first plate to the non-circular part.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: November 23, 2021
    Assignee: MAKITA CORPORATION
    Inventors: Hirotomo Inayoshi, Hiroto Korekawa, Yuta Yamashita, Masaki Murakami
  • Patent number: 11162123
    Abstract: A reagent for glutamine synthetase reaction comprising a chelating agent and glutamine synthetase, and a reagent for quantification of ammonia comprising a chelating agent, ATP, glutamic acid, glutamine synthetase, glucose, an oxidized NAD compound, ADP-dependent hexokinase, and glucose-6-phosphate dehydrogenase, are provided.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: November 2, 2021
    Assignee: ARKRAY, Inc.
    Inventors: Masaki Murakami, Takehiro Funamoto
  • Publication number: 20210162621
    Abstract: A lever device is configured such that, when first and second plates are relatively moved in a direction in which a second end part of the first plate and a fourth end part of the second plate are close to each other from a state in which the second end part and the fourth end part are separated from each other in an axial direction of a bolt, the first plate is rotated around a fulcrum positioned between a first engagement part and the second end part in the crossing direction so that the first plate is moved from an engaged position where the first engagement part and a non-circular part of the bolt or a nut are engaged to a non-engaged position where they are not engaged, and thereby removing a restriction of the relative rotation of the first plate to the non-circular part.
    Type: Application
    Filed: November 13, 2020
    Publication date: June 3, 2021
    Applicant: MAKITA CORPORATION
    Inventors: Hirotomo INAYOSHI, Hiroto KOREKAWA, Yuta YAMASHITA, Masaki MURAKAMI
  • Publication number: 20200368831
    Abstract: Twisting of a locking member due to cogging torque is reduced without lowering the locking and unlocking operability for a user. A power tool includes a housing, an electric motor located inside the housing and including a permanent magnet, a shaft rotatable about an axis relative to the housing to transmit power from the electric motor, a locking member movable between a lock position and an unlock position in a nonenergized state of the electric motor and engageable with the shaft at the lock position to lock rotation of the shaft, and an abutting member that applies, to the locking member at the lock position, a force in a direction opposite to an axial torque caused by the permanent magnet and applied to the locking member.
    Type: Application
    Filed: April 20, 2020
    Publication date: November 26, 2020
    Applicant: MAKITA CORPORATION
    Inventors: Toshiyuki KANI, Hiromu GOTO, Kenji HAMADA, Masaki MURAKAMI
  • Patent number: 10731200
    Abstract: A method of quantifying ammonia, which method includes: performing a first reaction in which a test liquid containing ammonia is reacted with ATP and L-glutamic acid in the presence of glutamine synthetase to produce ADP; performing a second reaction in which the produced ADP is reacted with glucose in the presence of ADP-dependent hexokinase to produce glucose-6-phosphate; performing a third reaction in which the produced glucose-6-phosphate is reacted with an oxidized NAD compound in the presence of glucose-6-phosphate dehydrogenase to produce a reduced NAD compound; and quantifying the reduced NAD compound to quantify ammonia.
    Type: Grant
    Filed: October 19, 2017
    Date of Patent: August 4, 2020
    Assignee: ARKRAY, Inc.
    Inventors: Takehiro Funamoto, Masaki Murakami
  • Publication number: 20190048373
    Abstract: A reagent for glutamine synthetase reaction comprising a chelating agent and glutamine synthetase, and a reagent for quantification of ammonia comprising a chelating agent, ATP, glutamic acid, glutamine synthetase, glucose, an oxidized NAD compound, ADP-dependent hexokinase, and glucose-6-phosphate dehydrogenase, are provided.
    Type: Application
    Filed: August 8, 2018
    Publication date: February 14, 2019
    Applicant: ARKRAY, Inc.
    Inventors: Masaki Murakami, Takehiro Funamoto
  • Publication number: 20180112250
    Abstract: A method of quantifying ammonia, which method includes: performing a first reaction in which a test liquid containing ammonia is reacted with ATP and L-glutamic acid in the presence of glutamine synthetase to produce ADP; performing a second reaction in which the produced ADP is reacted with glucose in the presence of ADP-dependent hexokinase to produce glucose-6-phosphate; performing a third reaction in which the produced glucose-6-phosphate is reacted with an oxidized NAD compound in the presence of glucose-6-phosphate dehydrogenase to produce a reduced NAD compound; and quantifying the reduced NAD compound to quantify ammonia.
    Type: Application
    Filed: October 19, 2017
    Publication date: April 26, 2018
    Applicant: ARKRAY, Inc.
    Inventors: Takehiro Funamoto, Masaki Murakami
  • Publication number: 20180037927
    Abstract: A method of quantifying ammonia, the method includes performing a first reaction in which a test liquid containing ammonia is reacted with adenosine triphosphate and L-glutamic acid in the presence of glutamine synthetase to produce phosphoric acid, performing a second reaction in which the produced phosphoric acid is reacted with pyruvic acid in the presence of pyruvate oxidase, and measuring a component consumed or produced by the second reaction, to quantify ammonia, wherein a reaction to produce adenosine triphosphate from adenosine diphosphate mediated by pyruvate kinase is not carried out.
    Type: Application
    Filed: August 2, 2017
    Publication date: February 8, 2018
    Applicant: ARKRAY, Inc.
    Inventors: Koji Katsuki, Takehiro Funamoto, Masaki Murakami
  • Patent number: 6975012
    Abstract: Disclosed is a semiconductor radiation detector element of Schottky barrier type, comprising: a compound semiconductor crystal including cadmium and tellurium as main components; and voltage application means for applying voltage to the compound semiconductor crystal. According to the present invention, said voltage application means includes a compound of indium, cadmium and tellurium: InxCdyTez formed on one surface of the compound semiconductor crystal. Preferably, the rate “z” of occupation of tellurium in the compound InxCdyTez is in the range of not less than 42.9%, but not greater than 50% by ratio of number of atoms. Furthermore, preferably, the rate “y” of occupation of cadmium in the compound InxCdyTez is in the range of not less than 0%, but not greater than 10% by ratio of number of atoms.
    Type: Grant
    Filed: October 29, 2003
    Date of Patent: December 13, 2005
    Assignee: Acrorad Co., Ltd.
    Inventors: Miki Moriyama, Masaki Murakami, Atsushi Kyan, Ryoichi Ohno
  • Publication number: 20040129994
    Abstract: Disclosed is a semiconductor radiation detector element of Schottky barrier type, comprising: a compound semiconductor crystal including cadmium and tellurium as main components; and voltage application means for applying voltage to the compound semiconductor crystal. According to the present invention, said voltage application means includes a compound of indium, cadmium and tellurium: InxCdyTez formed on one surface of the compound semiconductor crystal. Preferably, the rate “z” of occupation of tellurium in the compound InxCdyTez is in the range of not less than 42.9%, but not greater than 50% by ratio of number of atoms. Furthermore, preferably, the rate “y” of occupation of cadmium in the compound InxCdyTez is in the range of not less than 0%, but not greater than 10% by ratio of number of atoms.
    Type: Application
    Filed: October 29, 2003
    Publication date: July 8, 2004
    Applicant: Acrorad Co., Ltd.
    Inventors: Miki Moriyama, Masaki Murakami, Atsushi Kyan, Ryoichi Ohno
  • Patent number: 6308339
    Abstract: A trunks-type garment has crotch region formed by two sheets that are superposed and bonded together. Extensions of these two sheets extending from a bottom of the crotch region of the garment are folded back onto the respective sheets of form lapels.
    Type: Grant
    Filed: September 25, 2000
    Date of Patent: October 30, 2001
    Assignee: Uni-Charm Corporation
    Inventors: Masaki Murakami, Michiyo Matsushita
  • Patent number: 6289519
    Abstract: Pants that comprise a pair of intermediate body sheets, positioned in plane symmetry to each other and respectively contoured by upper, lower, inner and outer edges, and a pair of lateral body sheets also positioned outside the respective intermediate body sheets and respectively contoured also by upper, lower, inner and outer edges. Each of the intermediate body sheets is formed between the inner and outer edges with an arcuate cutout extending convexly from the upper edge, toward the lower edge the intermediate body sheets being put flat and sealed together along a sealing line defined by the cutouts but leaving a narrow marginal edge free. The intermediate body sheets and the lateral body sheets are placed flat and sealed together along sealing lines defined by inner and outer edges thereof, leaving narrow marginal regions free outside the inner and outer edges.
    Type: Grant
    Filed: October 16, 2000
    Date of Patent: September 18, 2001
    Assignee: Uni-Charm Co., LTD
    Inventors: Masaki Murakami, Michiyo Matsushita, Akira Myoga, Hitomi Ishikawa
  • Patent number: 5845361
    Abstract: A sweeper device includes a rectangular head, a stick mounted on an upper surface of the head and a sweeping sheet detachably attached to cover a lower surface of the head. The head is provided along at least a pair of side walls extending transversely thereof with elastic side walls so that a sweeping sheet can be attached onto a bottom of the head in a tension state.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: December 8, 1998
    Assignee: UNI-Charm Corporation
    Inventors: Masaki Murakami, Hiroki Ishikawa, Yasuhiko Kenmochi
  • Patent number: 5815878
    Abstract: A sweeper device including a head, a stick mounted on an upper surface of the head and a sweeping sheet detachably attached to the head, a pair of clamping members being provided in a transversely symmetric relationship with respective inner ends thereof being opposed to each other, each of the clamping members being pivotally mounted at an inner end thereof on the upper surface of the head so that the clamping member can be pivotally opened upward from the upper surface of the head.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: October 6, 1998
    Assignee: Uni-Charm Corporation
    Inventors: Masaki Murakami, Hiroki Ishikawa, Yasuhiko Kenmochi