Patents by Inventor Makoto Okamoto

Makoto Okamoto 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: 11942119
    Abstract: According to one embodiment, a magnetic recording/reproducing apparatus includes irreversible adsorbing materials in a sealed housing for the magnetic recording/reproducing apparatus.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: March 26, 2024
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Akiyo Mizutani, Koji Sonoda, Makoto Okamoto, Takuma Kido
  • Publication number: 20230311461
    Abstract: The present disclosure provides a multilayer structure including a first polyolefin layer comprising a first polyolefin resin, a gas barrier layer comprising ethylene-vinyl alcohol copolymer, and a second polyolefin layer comprising a second polyolefin resin. The present disclosure further provides a package made of the multilayer structure and also methods of use thereof.
    Type: Application
    Filed: March 7, 2023
    Publication date: October 5, 2023
    Applicant: Kuraray Co., Ltd.
    Inventors: Diana Maya, Edgard Chow, Makoto Okamoto
  • Patent number: 11767386
    Abstract: A hot-water sterilized package includes a container having a barrier layer filled with contents, wherein the barrier layer contains 96 mass % or more of a modified ethylene-vinyl alcohol copolymer based on the resin total, the modified ethylene-vinyl alcohol copolymer is represented by a following formula (I), contents (mol %) of a, b, and c based on the total monomer units satisfy following formulae (1) through (3), a degree of saponification (DS) defined by a following formula (4) is 90 mol % or more, and in measurement using a differential scanning calorimeter (DSC), crystalline melting enthalpy (?HA: J/g) during temperature rise in a hydrated state and crystalline melting enthalpy (?HB: J/g) during temperature rise after drying and melting followed by rapid cooling satisfy following formulae (5) and (6). A container constituting such a package has excellent in oxygen barrier properties even after hot-water sterilization, and thus degradation of content quality is inhibited for a long period.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: September 26, 2023
    Assignee: KURARAY CO., LTD.
    Inventors: Rina Hoshika, Makoto Okamoto, Makoto Suzuki
  • Publication number: 20230298624
    Abstract: According to one embodiment, a disk device includes magnetic disks, a spindle motor, and a housing. The magnetic disks are arranged in an axial direction. The spindle motor rotates the magnetic disks about a first rotation axis extending in the axial direction. The housing includes a first wall, an inner surface of the first wall, an outer surface of the first wall, and a second wall. The spindle motor is attached to the first wall. The first wall is apart from the magnetic disks in the axial direction. The second wall protrudes from the first wall and surrounds the plurality of magnetic disks in a direction orthogonal to the axial direction. In the axial direction a maximum distance between the inner surface and the outer surface is 1.5% or more and 8% or less of a maximum dimension of the housing.
    Type: Application
    Filed: September 7, 2022
    Publication date: September 21, 2023
    Inventor: Makoto OKAMOTO
  • Publication number: 20230294378
    Abstract: A multilayer article including a chemical-resistant layer comprising a polyurea, where the chemical-resistant layer is not an adhesive layer between two layers, and a barrier layer comprising an ethylene-vinyl alcohol copolymer. The multilayer article has good flexibility and toughness, resistance to water and chemicals, and excellent barrier properties to organic solvents and gases.
    Type: Application
    Filed: March 17, 2023
    Publication date: September 21, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Edgard Chow, Emilio Morales, Makoto Okamoto
  • Publication number: 20230257491
    Abstract: [Problem to be solved] To provide a traceable vinyl acetate, a polymer containing the vinyl acetate, and a vinyl alcohol polymer which is a saponified product of the polymer. [Solution] Vinyl acetate having a ratio of carbon-14 to total carbon of 1.0×10?4 or more, a vinyl acetate polymer containing the vinyl acetate as a monomer unit and a vinyl alcohol polymer obtained by saponifying the vinyl acetate polymer.
    Type: Application
    Filed: June 30, 2021
    Publication date: August 17, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Yasutaka Inubushi, Keishi Hachiya, Masaki Kato, Yoshikazu Yamasaki, Makoto Okamoto, Kazuyuki Somemiya, Takafumi Izawa
  • Patent number: 11727956
    Abstract: A disk device includes one or more disks, a base shaft, a bearing shaft, first and second bearing units, first and second actuator assemblies, and a damping member. The bearing shaft has a tubular portion fixed around the base shaft. The first and second bearing units are attached around the bearing shaft and aligned in an axial direction of the bearing shaft. The first and second actuator assemblies are coupled to the first and second bearing units, respectively. The damping member is provided between an outer circumferential surface of the base shaft and an inner circumferential surface of the tubular portion of the bearing shaft.
    Type: Grant
    Filed: February 10, 2022
    Date of Patent: August 15, 2023
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Makoto Okamoto, Takuma Kido
  • Publication number: 20230193014
    Abstract: A purging agent of the present invention contains a resin composition containing a hydrophilic resin (A), water (B), and a basic compound (C). The mass ratio (A)/(B) of the hydrophilic resin (A) to the water (B) is 66/34 to 90/10, and the content of the basic compound (C) is 0.25 to 7 parts by mass with respect to 100 parts by mass of the hydrophilic resin (A).
    Type: Application
    Filed: May 19, 2020
    Publication date: June 22, 2023
    Applicant: KURARAY CO., LTD.
    Inventors: Yu Ito, Makoto Okamoto, Makoto Suzuki
  • Publication number: 20230010930
    Abstract: A disk device includes one or more disks, a base shaft, a bearing shaft, first and second bearing units, first and second actuator assemblies, and a damping member. The bearing shaft has a tubular portion fixed around the base shaft. The first and second bearing units are attached around the bearing shaft and aligned in an axial direction of the bearing shaft. The first and second actuator assemblies are coupled to the first and second bearing units, respectively. The damping member is provided between an outer circumferential surface of the base shaft and an inner circumferential surface of the tubular portion of the bearing shaft.
    Type: Application
    Filed: February 10, 2022
    Publication date: January 12, 2023
    Inventors: Makoto OKAMOTO, Takuma KIDO
  • Patent number: 11527262
    Abstract: A disk device includes a plurality of magnetic disks, a plurality of magnetic heads, a first actuator assembly having a plurality of arms and a plurality of suspension assemblies for the magnetic heads and supported to be rotatable about a support shaft, a second actuator assembly having a plurality of arms and a plurality of suspension assemblies for the magnetic heads and supported to be rotatable about the support shaft, and a protective member formed from a material different from a material for the arms. The protective member is provided on a tip end portion of at least one of a first arm closest to the second actuator assembly among the of arms in the first actuator assembly and a second arm closest to the first actuator assembly among the arms in the second actuator assembly.
    Type: Grant
    Filed: August 20, 2021
    Date of Patent: December 13, 2022
    Assignees: KABUSHIKI KAISHA TOSHIBA, TOSHIBA ELECTRONIC DEVICES & STORAGE CORPORATION
    Inventor: Makoto Okamoto
  • Publication number: 20220375502
    Abstract: According to one embodiment, a magnetic recording/reproducing apparatus includes irreversible adsorbing materials in a sealed housing for the magnetic recording/reproducing apparatus.
    Type: Application
    Filed: February 1, 2022
    Publication date: November 24, 2022
    Inventors: Akiyo Mizutani, Koji Sonoda, Makoto Okamoto, Takuma Kido
  • Publication number: 20220262394
    Abstract: A disk device includes a plurality of magnetic disks, a plurality of magnetic heads, a first actuator assembly having a plurality of arms and a plurality of suspension assemblies for the magnetic heads and supported to be rotatable about a support shaft, a second actuator assembly having a plurality of arms and a plurality of suspension assemblies for the magnetic heads and supported to be rotatable about the support shaft, and a protective member formed from a material different from a material for the arms. The protective member is provided on a tip end portion of at least one of a first arm closest to the second actuator assembly among the of arms in the first actuator assembly and a second arm closest to the first actuator assembly among the arms in the second actuator assembly.
    Type: Application
    Filed: August 20, 2021
    Publication date: August 18, 2022
    Inventor: Makoto OKAMOTO
  • Patent number: 11352477
    Abstract: A resin composition comprises: a modified EVOH (A) that is represented by a following formula (I), has contents (mol %) of a, b, and c based on the total monomer units satisfying following formulae (1) through (3), and has a degree of saponification (DS) defined by a following formula (4) of 90 mol % or more; and inorganic oxide particles (B), wherein a content of the inorganic oxide particles (B) is from 5 to 5000 ppm. Such a resin composition is improved in adhesion to a resin other than EVOH, secondary processability, and flexibility without decreasing the performances originally possessed by EVOH, such as gas barrier properties, transparency, flavor retention, solvent resistance, and oil resistance. Accordingly, the resin is preferably used as a molded article, a film, a sheet, a heat shrinkable film, a thermoformed article, a multilayer structure, a coinjection stretch blow molded container, a fuel container, and the like. 18?a?55??(1) 0.01?c?20??(2) [100?(a+c)]×0.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: June 7, 2022
    Assignee: KURARAY CO., LTD.
    Inventors: Makoto Okamoto, Hirotaka Shiota, Makoto Suzuki
  • Patent number: 11149143
    Abstract: A resin composition (E) includes from 0.1 to 20 parts by mass of an ethylene-vinyl alcohol copolymer (B), from 0.1 to 20 parts by mass of an acid-modified polyolefin (C), and from 0.1 to 10 parts by mass of an acid-modified polyolefin (D) based on 100 parts by mass of a polyolefin (A), wherein the polyolefin (A) has an MFR (190° C., under a load of 2.16 kg) from 0.01 to 10 g/10 min, the acid-modified polyolefin (C) has an acid value from 0.1 to 9 mg KOH/g, the acid-modified polyolefin (D) has an acid value of more than 10 mg KOH/g and 120 mg KOH/g or less, and a ratio (D/A) of an MFR (190° C., under a load of 2.16 kg) of the acid-modified polyolefin (D) to the MFR (190° C., under a load of 2.16 kg) of the polyolefin (A) is 50 or more. The resin composition (E) of the present invention causes reduction in the amount of deteriorated materials adhering to a screw and/or a die even when long-term continuous melt molding is conducted.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: October 19, 2021
    Assignee: KURARAY CO., LTD.
    Inventors: Yu Ito, Makoto Suzuki, Makoto Okamoto
  • Patent number: 11046029
    Abstract: A composite material component manufacturing method including a first thermoforming step for creating a first three-dimensional prepreg sheet by thermoforming a thermoplastic first prepreg sheet into a three dimensional shape, a laminate body creating step for creating a prepreg sheet laminate body by layering the first three-dimensional prepreg sheet and a second prepreg sheet; and a laminate body molding step for molding the prepreg sheet laminate body by applying heat and a pressing force to the prepreg sheet laminate body with a pressing device.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: June 29, 2021
    Assignee: JAMCO CORPORATION
    Inventors: Makoto Okamoto, Masato Ishii
  • Patent number: 11017803
    Abstract: According to one embodiment, a disk drive includes a first actuator assembly, and a second actuator assembly. In the first actuator assembly, arms each includes a slit provided at a side face of the arm, the slit expending from an extending end of the arm to a first actuator block. The slit is provided such that a central line of the slit in its width direction is offset in position from a central line of the arm in its thickness direction in a direction further away from a boundary plane between the first and second actuator assemblies. The arm have a first inclined face and a second inclined face formed at an open end portion of the slit, the first and second inclined face each inclining in a direction in which an open width of the slit widens.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: May 25, 2021
    Assignees: Kabushiki Kaisha Toshiba, Toshiba Electronic Devices & Storage Corporation
    Inventors: Norio Yoshikawa, Makoto Okamoto
  • Patent number: 10930320
    Abstract: According to one embodiment, a disk device includes a disk-shaped recording medium, a head which processes data on the recording medium, and a housing accommodating the recording medium and the head. The housing includes a base with a side wall, and a cover having a welded portion welded to the side wall by laser welding. The welded portion includes a first welded portion welded to a first region of the side wall and having weld beads with a first shape, and a second welded portion welded to a second region of the side wall and having welded beads with a second shape different from the first shape.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: February 23, 2021
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Makoto Okamoto, Yasutaka Sasaki
  • Patent number: 10913222
    Abstract: A composite material component manufacturing method includes a molding step of applying, by a pressing device, heat and pressure to a prepreg to mold the prepreg, and a transfer step of transferring the prepreg. The transfer step includes moving the prepreg together with the pressing device in a state in which a pressing force is applied to the prepreg by the pressing device.
    Type: Grant
    Filed: June 2, 2017
    Date of Patent: February 9, 2021
    Assignee: JAMCO CORPORATION
    Inventors: Makoto Okamoto, Masato Ishii
  • Publication number: 20210001608
    Abstract: There is provided a geomembrane consisting of a multilayer structure comprising a barrier layer (A), an adhesive layer (B) made of an acid-modified thermoplastic resin and a thermoplastic resin layer (C), wherein the thermoplastic resin layer (C) is laminated on at least one side of the barrier layer (A) via the adhesive layer (B), and the barrier layer (A) has an ethylene unit content of 18 mol % or more and 55 mol % or less and comprises a modified ethylene-vinyl alcohol copolymer comprising a modifying group having a primary hydroxyl group. The geomembrane exhibits excellent peer strength between the barrier layer and the adhesive layer, exhibits further improved peel strength after prolonged exposure to high temperature and high humidity conditions.
    Type: Application
    Filed: April 5, 2019
    Publication date: January 7, 2021
    Applicant: Kuraray Co., Ltd.
    Inventors: Satoshi Ishiuchi, Makoto Okamoto
  • Patent number: 10808110
    Abstract: A resin composition superior in stability and external appearance characteristics during/following melt molding; and an extrusion-molded article, an injection-molded article and a blow-molded article that are formed from the resin composition are provided. The resin composition contains an ethylene-vinyl alcohol copolymer as a principle component, and has a heterogeneous nucleation index (f) of less than 0.6 as determined by formula (1) based on a differential scanning calorimetry (DSC) curve obtained by DSC in which the resin composition is cooled at a rate of 150° C./sec from a molten state at 210° C. In the formula (1), Qtotal represents an area of a total region surrounded by the DSC curve and a base line, and Qhetero represents an area of a heterogeneous region that is a part of the total region, falling within a range from the temperature lower than the melting point by 38° C. to a temperature lower than the melting point by 75° C.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: October 20, 2020
    Assignee: Kuraray Co., Ltd.
    Inventors: Eriko Kometani, Makoto Okamoto, Mitsunori Asada, Yaqi Li