Patents by Inventor Masakazu Ohashi

Masakazu Ohashi 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).

  • Patent number: 10919125
    Abstract: A grindstone that enables grinding, polishing, super-finish polishing by using the same grindstone, without clogging even if the grindstone is being used continuously, in which a grinding/polishing section for processing a workpiece has a honeycomb structure formed by arranging polygonal prisms with no clearance therebetween. The grindstone includes the grindstone columns consisting of abrasive grains and binder and having an axis in depth direction of grinding/polishing surface, which are disposed on intersections or wall portions of the honeycomb structure. Porous elastomer is disposed inside the honeycomb structure, thus making it possible to perform a super-finish polishing.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: February 16, 2021
    Assignee: NANO TEM CO., LTD.
    Inventors: Atsushi Takata, Masakazu Takatsu, Kyosuke Ohashi, Kozo Ishizaki, Norio Onodera
  • Publication number: 20200332138
    Abstract: An ink jet printing ink composition includes: cross-linkable group-containing urethane resin particles; a diketopyrrolopyrrole-based pigment; and a first organic solvent having a hydrogen bond term ?h of 10 to less than 18 in Hansen solubility parameters.
    Type: Application
    Filed: April 17, 2020
    Publication date: October 22, 2020
    Inventors: Minoru YAMADA, Masakazu OHASHI, Kosuke CHIDATE
  • Publication number: 20200307254
    Abstract: An ink jet recording apparatus includes an ink composition and a liquid jet head including a nozzle for discharging the ink composition. The ink composition is a textile printing ink composition containing resin particles, a white pigment, and water. The content of the resin particles is 5.0 mass % or more based on the total amount of the ink composition. The content of the white pigment is 5.0 mass % or more based on the total amount of the ink composition. The resin particles have a glass transition temperature of less than 6° C. The liquid jet head includes a pressure chamber to which the ink composition is supplied and a circulation return passage enabling the ink composition in the pressure chamber to circulate.
    Type: Application
    Filed: March 27, 2020
    Publication date: October 1, 2020
    Inventor: Masakazu OHASHI
  • Patent number: 10737215
    Abstract: A housing includes an air introduction flow passage, an air discharge flow passage, and a desiccant agent accommodated in the housing. One end portion of the housing is at a lower side of the housing in a vertical direction aligned with the axial direction. An air-liquid separation chamber is formed at a bottom portion of the housing, and includes an air supply passage supplying air to the desiccant agent at an upper housing surface, and is communicated with the air introduction flow passage and the air discharge flow passage to separate moisture in the air introduced from the air introduction flow passage. An adsorption member is accommodated in the air-liquid separation chamber to adsorb moisture separated in the air-liquid separation chamber. Air introduced from the air introduction flow passage is supplied to an air suspension device through the adsorption member and the desiccant agent.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: August 11, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Masaaki Oishi, Satoshi Kimura, Taichi Mizuno, Masakazu Ohashi, Hiroyuki Uehara
  • Patent number: 10704194
    Abstract: An ink jet ink composition for textile printing contains a crosslinking component having a blocked isocyanate group, tertiary amine, at least one carboxylic acid selected from the group consisting of monocarboxylic acid, dicarboxylic acid, and tricarboxylic acid, a pigment, and water.
    Type: Grant
    Filed: March 1, 2018
    Date of Patent: July 7, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Kosuke Chidate, Masakazu Ohashi, Hideki Okada, Takako Sugiyama, Hiromi Noguchi
  • Publication number: 20200207136
    Abstract: A liquid discharge apparatus of the present disclosure includes an ink composition and a liquid discharge section including a nozzle for discharging the ink composition. The ink composition is a pigment textile printing ink composition containing resin particles, water, and an organic solvent. The resin particles have a glass transition temperature of 5° C. or less and are contained in an amount of 6.5 mass % or more based on the total amount of the ink composition. The ink composition contains a polyhydric alcohol having a boiling point of 270° C. or more as the organic solvent in an amount of 15.0 mass % or less based on the total amount of the ink composition. The liquid discharge section includes a pressure chamber and a circulation passage for circulating the ink composition in the pressure chamber.
    Type: Application
    Filed: December 26, 2019
    Publication date: July 2, 2020
    Inventors: Ryota MIYASA, Hideki OKADA, Masakazu OHASHI
  • Patent number: 10668782
    Abstract: An air suspension system is provided with air spring devices, a pressure accumulation tank, a compressor device that supplies compressed air at least to the pressure accumulation tank, and that includes an electric motor, a pump device, and a dryer, and a control device that performs a vehicle height increase control, a vehicle height decrease control, an air suction control, and a regeneration air discharge control. The control device performs a heat accumulation control, by actuating the pump device with the communication between the compressor device and the air spring devices being blocked, supplying the compressed air discharged through the dryer to the pump device to be circulated, and accumulating heat of compression of the compressed air in the dryer, to regenerate the dryer.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: June 2, 2020
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Masaaki Oishi, Masakazu Ohashi, Hiroyuki Uehara, Satoshi Kimura, Taichi Mizuno
  • Publication number: 20200165474
    Abstract: A textile printing ink jet ink composition includes a dioxazine pigment, a resin particle, and a lubricant, wherein the content of the dioxazine pigment is 0.5 to 1.5 mass % based on the total amount of the ink composition.
    Type: Application
    Filed: November 26, 2019
    Publication date: May 28, 2020
    Inventors: Tasuku NAKAMURA, Kosuke CHIDATE, Hideki OKADA, Masakazu OHASHI, Takako SUGIYAMA
  • Patent number: 10654289
    Abstract: An inkset for ink jet textile printing includes a first ink having a pigment and a resin; and a second ink having a pigment, a resin, and an emulsifier, in which the emulsifier includes at least one kind selected from an anionic emulsifier represented by the following general formula (1) and a nonionic emulsifier represented by the following general formula (2), whose HLB value is 12 or more, R1—O—(CH2—CH2—O)n-A??(1), and R2—O—(CH2—CH2—O)m—H??(2).
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: May 19, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Masakazu Ohashi, Toru Saito, Tomoki Shinoda
  • Publication number: 20200123701
    Abstract: A treatment solution composition is provided and is a treatment solution applied to fabric and used in textile printing and contains a cationic compound, betaine, and water.
    Type: Application
    Filed: June 11, 2018
    Publication date: April 23, 2020
    Inventors: Hideki OKADA, Toshihiro FUJIE, Masakazu OHASHI
  • Patent number: 10557232
    Abstract: A treatment liquid composition for use in ink jet pigment textile printing and used by attaching it to fabric contains a cationic compound, at least one compound selected from polyvinylpyrrolidones, polyethylene oxides, carboxymethyl celluloses, hydroxyethyl celluloses, and polyvinyl alcohols, and water. The fabric contains polyester.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: February 11, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Masakazu Ohashi, Ryota Miyasa
  • Publication number: 20200040523
    Abstract: A treatment liquid composition is a treatment liquid composition which is used to be adhered to a cloth and which includes a cationic compound, a water-soluble resin, and water; a molecular weight distribution of a water-soluble component contained in the treatment liquid composition has a maximum peak in a molecular weight range of 28,000 to 2,800,000; and a content of a water-soluble resin having a molecular weight of 28,000 to 2,800,000 is 0.6 to 5.0 percent by mass with respect to a total mass of the treatment liquid composition.
    Type: Application
    Filed: July 30, 2019
    Publication date: February 6, 2020
    Inventors: Ryota MIYASA, Masakazu OHASHI
  • Patent number: 10549558
    Abstract: A cutter unit is attached to a carriage in a predetermined direction, the carriage moving in a cutting direction of a sheet. A first set of first fitting sections and a second set of second fitting sections are provided as groups of fitting sections provided at positions, which face each other, on the carriage and the cutter unit. The first fitting sections and the second fitting sections each of which are fitted to each other in a predetermined direction. When the cutter unit is attached to the carriage, the fitting of the first fitting sections starts before the fitting of the second fitting sections.
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: February 4, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shuichi Masuda, Naoki Wakayama, Masakazu Nagashima, Daiki Anayama, Tetsuo Kikuchi, Takakazu Ohashi
  • Patent number: 10525733
    Abstract: An ink jet printing method includes attaching an ink composition to a cloth by using a printer head which has a nozzle discharging the ink composition, a pressure chamber for imparting pressure to the ink composition to cause the nozzle to discharge the ink composition, and a connection portion connecting the pressure chamber and the nozzle, and in which a distance of the connection portion is 500 ?m or more, the distance of the connection portion being from a portion of the pressure chamber where the ink flows out from a pressure chamber to the nozzle side to the nozzle, in which the ink composition includes the resin as a solid content in the amount of 10% by mass to 26% by mass with respect to the ink composition, the ratio of the total content of the organic solvent to the total content of the solid content of the resin is 0.3 or more, and a sum of the total content of the solid content of the resin and the total content of the organic solvent is 37% by mass or less with respect to the ink composition.
    Type: Grant
    Filed: September 18, 2018
    Date of Patent: January 7, 2020
    Assignee: Seiko Epson Corporation
    Inventors: Masayuki Murai, Masakazu Ohashi, Toru Saito
  • Publication number: 20190292388
    Abstract: A pigment printing ink jet ink composition includes a pigment, a resin particle, an organic solvent, and water. The organic solvent includes an amide compound represented by the following general formula (1). In the general formula (1), R1 represents a straight chain or branched alkyl group having 1 to 6 carbon atoms, and R2 and R3 each independently present hydrogen atoms or a straight chain or branched alkyl group having 1 to 4 carbon atoms.
    Type: Application
    Filed: March 25, 2019
    Publication date: September 26, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masakazu OHASHI, Kosuke CHIDATE, Toshiyuki MIYABAYASHI
  • Publication number: 20190292390
    Abstract: A pigment printing ink jet ink composition includes a pigment, a resin particle, a sulfonate-based anionic surfactant, and water.
    Type: Application
    Filed: March 19, 2019
    Publication date: September 26, 2019
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Masakazu OHASHI, Kosuke CHIDATE, Toshiyuki MIYABAYASHI
  • Publication number: 20190284420
    Abstract: An ink jet printing clear ink composition includes resin particles; a lubricant; and water. The resin particles includes a urethane resin having a cross-linking group, and the clear ink composition is formed into a dried coating film having a Young's modulus of 5 to 70 MPa.
    Type: Application
    Filed: March 15, 2019
    Publication date: September 19, 2019
    Inventors: Takako SUGIYAMA, Masakazu OHASHI, Kosuke CHIDATE
  • Patent number: 10414020
    Abstract: [Problem] To provide a grindstone and a grinding/polishing device using same with which, in addition to it being possible to perform the three processes of rough processing, lapping, and polishing with the same device: double-sided processing is also possible; processing rate does not decrease even when used continuously; and dressing can be omitted. [Solution] A grindstone for grinding/polishing workpieces, the grindstone being characterized in comprising multiple grindstone pillars, which are obtained from a binding agents and abrasive grains for grinding/polishing the workpieces and disposed in parallel with an axis (L) in the depth direction of the grinding/polishing surface, and the grindstone matrix integrally formed with the grindstone pillars, and a grinding/polishing device using said grindstone.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: September 17, 2019
    Assignee: NANO TEM CO., LTD.
    Inventors: Atsushi Takada, Masakazu Takatsu, Kyosuke Ohashi, Kazuya Horie, Kozo Ishizaki
  • Patent number: 10384508
    Abstract: A vehicle-height control system is configured to control a vehicle height for a wheel. The vehicle-height control system includes: a vehicle-height control actuator provided so as to correspond to the wheel; a pressure-medium supply and discharge device configured to supply and discharge a pressure medium to and from the vehicle-height control actuator; and a vehicle height controller configured to control the vehicle height for the wheel by controlling the pressure-medium supply and discharge device based on an inside temperature and an outside-air temperature to control at least one of supply and discharge of the pressure medium to and from the vehicle-height control actuator. The inside temperature is a temperature in the vehicle-height control system.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: August 20, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Hideki Ohashi, Katsuyuki Sano, Jun Tokumitsu, Ryo Kanda, Shogo Tanaka, Masaaki Oishi, Ken Ogue, Masakazu Ohashi
  • Publication number: 20190247980
    Abstract: A grindstone that enables grinding, polishing, super-finish polishing by using the same grindstone, without clogging even if the grindstone is being used continuously, in which a grinding/polishing section for processing a workpiece has a honeycomb structure formed by arranging polygonal prisms with no clearance therebetween. The grindstone includes the grindstone columns consisting of abrasive grains and binder and having an axis in depth direction of grinding/polishing surface, which are disposed on intersections or wall portions of the honeycomb structure. Porous elastomer is disposed inside the honeycomb structure, thus making it possible to perform a super-finish polishing.
    Type: Application
    Filed: October 19, 2016
    Publication date: August 15, 2019
    Applicant: NANO TEM CO., LTD.
    Inventors: Atsushi TAKATA, Masakazu TAKATSU, Kyosuke OHASHI, Kozo ISHIZAKI, Norio ONODERA