Patents by Inventor Hiroshi Hasegawa

Hiroshi Hasegawa 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: 20220308758
    Abstract: An approach for improving the writing an index file on tape storage by switching, via a tape drive, write sequences in an index partition, in which the tape drive switches between a normal wrap sequence and a reverse wrap sequence. Further, embodiments write the index information by the normal wrap sequence during initialization of the tape media, in which the tape media is being mounted for the first time. Additionally, embodiments write the index information by the reverse wrap sequence during an unmounting the tape media for the first time, and wherein the tape media is mounted based on index information written at a rearmost end of one or more data partitions during second and subsequent mounting.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 29, 2022
    Inventors: Hiroshi Itagaki, Tsuyoshi Miyamura, Noriko Yamamoto, Tohru Hasegawa, Atsushi Abe, Shinsuke Mitsuma
  • Patent number: 11453926
    Abstract: A steel sheet having excellent fatigue resistance as a material for automobile parts and a TS of 590 MPa or more, and a method for producing the same. The steel sheet having a specified chemical composition and a microstructure of 50% or more and 90% or less of martensite, 10% to 50% of ferrite and bainite in total, in terms of an area ratio, and an average concentration of solute Mn in ferrite in a region from a surface of a base steel to a depth of 0.5 ?m is 60% or more relative to an average concentration of solute Mn in ferrite at a location of ΒΌ in the thickness of the steel sheet.
    Type: Grant
    Filed: January 16, 2017
    Date of Patent: September 27, 2022
    Assignee: JFE STEEL CORPORATION
    Inventors: Tatsuya Nakagaito, Yoshimasa Funakawa, Yoshihiko Ono, Hiroshi Hasegawa
  • Patent number: 11447852
    Abstract: A high-strength galvanized steel sheet having improved post-work impact resistance, a method for producing the high-strength galvanized steel sheet, and a high-strength member produced using the steel sheet. The high-strength galvanized steel sheet includes a steel sheet having a microstructure including ferrite and carbide-free bainite, martensite and carbide-containing bainite, and retained austenite, the total area fraction of ferrite and carbide-free bainite being 0% to 55%, the total area fraction of martensite and carbide-containing bainite being 45% to 100%, and the area fraction of retained austenite being 0% to 5%. Additionally, a galvanizing layer is disposed on the steel sheet. The density of gaps that cut across the entire thickness of the galvanizing layer in a cross section of the galvanizing layer, which is taken in the thickness direction so as to be perpendicular to the rolling direction, is 10 gaps/mm or more.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: September 20, 2022
    Assignee: JFE STEEL CORPORATION
    Inventors: Hiroshi Hasegawa, Yoshimasa Funakawa, Hiromi Yoshitomi, Yoichi Makimizu, Yoshitsugu Suzuki, Gentaro Takeda, Yoshikazu Suzuki, Yoshimasa Himei
  • Publication number: 20220291855
    Abstract: In an approach to automatically reclassifying files in an HSM system, responsive to occurrence of a recall to move a file on a hierarchical storage system from a secondary storage to a primary storage, whether stub metadata exists for the file is determined. Responsive to determining that stub metadata exists for the file, whether reclassification of the file is necessary is determined based on the stub metadata. Responsive to determining that the reclassification of the file is necessary, the file is reclassified, where the reclassification uses a latest classification model, and further where the stub metadata is updated with results of the reclassification. The file is migrated from the primary storage to the secondary storage based on the stub metadata.
    Type: Application
    Filed: March 12, 2021
    Publication date: September 15, 2022
    Inventors: Tohru Hasegawa, Hiroshi Itagaki, Tsuyoshi Miyamura, Shinsuke Mitsuma, Atsushi Abe, Noriko Yamamoto
  • Patent number: 11442659
    Abstract: A plurality of files are stored on magnetic tape having at least one wrap for storing data sets. Each data set includes one or more records. A number of data sets that will remain in a buffer memory after performing a read ahead operation is determined. A number of records that are likely to remain in the buffer memory after performing a read ahead operation is determined. For each record likely to remain in the buffer memory after performing a read ahead operation, positions of the records on the magnetic tape are determined. Each file of the plurality of files are classified into one group of a plurality of groups based on a position of a record corresponding with each respective file and the number of records that are likely to remain in the buffer memory after performing a read ahead operation.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: September 13, 2022
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tsuyoshi Miyamura, Hiroshi Itagaki, Shinsuke Mitsuma, Tohru Hasegawa, Noriko Yamamoto, Sosuke Matsui
  • Patent number: 11437062
    Abstract: Aspects of the present disclosure relate to a method for reducing repositioning time within tape systems. A request to reposition to a target file within a tape medium can be received. A determination can be made that a previous command issued to the tape system was a write and that an index corresponding to the write has not been written. In response to determining that the previous command was the write and that the index corresponding to the write has not been written, a first file mark, the index after the first file mark, and a second file mark after the index can be written.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: September 6, 2022
    Assignee: International Business Machines Corporation
    Inventors: Tsuyoshi Miyamura, Tohru Hasegawa, Noriko Yamamoto, Atsushi Abe, Hiroshi Itagaki, Shinsuke Mitsuma
  • Publication number: 20220269408
    Abstract: A computer-implemented method for altering a position on a tape at which the tape transitions to a DATA_FULL state is disclosed. The computer-implemented method further includes determining, after a file is written to a Data Partition of the tape, a size of an Index representing metadata associated with the file. The computer-implemented method further includes altering, based on the size of the Index representing metadata associated with the file, a position in the Data Partition of the tape at which the tape transitions to the DATA_FULL state.
    Type: Application
    Filed: February 25, 2021
    Publication date: August 25, 2022
    Inventors: Atsushi Abe, Tsuyoshi Miyamura, Hiroshi Itagaki, Tohru Hasegawa, Noriko Yamamoto, Shinsuke Mitsuma, Sosuke Matsui
  • Patent number: 11414720
    Abstract: A high-strength steel sheet for warm working having excellent warm workability, and a method for manufacturing the steel sheet. The steel sheet has a chemical composition including, by mass %, C: 0.05% to 0.20%, Si: 3.0% or less, Mn: 3.5% to 8.0%, P: 0.100% or less, S: 0.02% or less, Al: 0.01% to 3.0%, N: 0.010% or less, one or more selected from Nb: 0.005% to 0.20%, Ti: 0.005% to 0.20%, Mo: 0.005% to 1.0%, and V: 0.005% to 1.0%. The steel sheet has a microstructure including, in terms of area ratio, 10% to 60% of retained austenite, 10% to 80% of ferrite, 10% to 50% of martensite, and 0% to 5% of bainite, in which a C content in the retained austenite is less than 0.40 mass % and the average crystal grain diameter of the retained austenite, the martensite, and the ferrite is 2.0 ?m or less.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: August 16, 2022
    Assignee: JFE STEEL CORPORATION
    Inventors: Hiroshi Hasegawa, Yoshimasa Funakawa
  • Publication number: 20220226704
    Abstract: A golf club includes a club shaft having a first end, a second end, and an inner peripheral surface defining an inner space of the club shaft, and a weight piece installed on a first end side of the club shaft. The weight piece includes an insertion portion located in the inner space, and an engagement portion located outside the club shaft to engage the first end. The insertion portion includes a first portion and a second portion. The first portion has an outer diameter smaller than the first inner diameter. The second portion includes a large diameter portion having an outer diameter larger than the first inner diameter in a state before being placed in the club shaft, and at least one rigidity-lowered portion that elastically deforms the second portion so that the outer diameter of the large diameter portion becomes smaller when receiving an external force.
    Type: Application
    Filed: January 3, 2022
    Publication date: July 21, 2022
    Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
    Inventors: Kota MAEDA, Hiroshi HASEGAWA, Akihiko KOBAYASHI
  • Patent number: 11390932
    Abstract: A high-strength hot-dip galvanized steel sheet has a hot-dip galvanized layer on a surface of the steel sheet, a specific component composition, and a steel microstructure containing, on an area percentage basis, 0% to 15% of ferrite and upper bainite in total, 80% to 100% of lower bainite and martensite in total, and 0% to 10% of retained austenite, and containing precipitates having a particle size of 100 to 2,000 nm in an amount of 109 to 1012 particles/m2 in a region extending to a position 100 to 300 ?m from the surface layer of the steel sheet, in which the ratio of the average amount of C at a position 5 ?m from the surface layer of the steel sheet to the average amount of C at a position 70 ?m from the surface layer of the steel sheet in the thickness direction is 0.20 to 0.80.
    Type: Grant
    Filed: August 23, 2019
    Date of Patent: July 19, 2022
    Assignee: JFE STEEL CORPORATION
    Inventors: Hiroshi Hasegawa, Tatsuya Nakagaito
  • Patent number: 11377708
    Abstract: Provided are a high-strength galvanized steel sheet and a method for producing the high-strength galvanized steel sheet. The high-strength galvanized steel sheet includes a base steel sheet having a specific composition and a microstructure including ferrite and carbide-free bainite, martensite and carbide-containing bainite, and retained austenite, the total area fraction of ferrite and carbide-free bainite being 0% to 65%, the total area fraction of martensite and carbide-containing bainite being 35% to 100%, and the area fraction of retained austenite being 0% to 15%, the content of diffusible hydrogen in the base steel sheet being 0.00008% by mass or less (including 0%) and a galvanizing layer disposed on the base steel sheet. The density of gaps in the galvanizing layer, that the gaps cutting across the entire thickness of the galvanizing layer, is 10 gaps/mm or more.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: July 5, 2022
    Assignee: JFE STEEL CORPORATION
    Inventors: Hiroshi Hasegawa, Tatsuya Nakagaito, Gosuke Ikeda, Hiromi Yoshitomi
  • Patent number: 11316894
    Abstract: A system for detecting leakage of email addresses generates an alias email address that will be used by a user to register with a web service. The alias email address is an alias for a primary email address of the user, and is paired with the web service. The web service is included in a whitelist upon confirmation from the web service that the alias email address has been registered with the web service. Emails that are addressed to the alias email address and from the web service are forwarded to the primary email address. Emails that are addressed to the alias email address but is not from the web service are detected to be suspicious.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: April 26, 2022
    Assignee: Trend Micro Incorporated
    Inventors: Tomoyuki Shiga, Machika Mase, Hiroshi Hasegawa
  • Publication number: 20220098687
    Abstract: A high-strength hot-dip galvanized steel sheet includes a hot-dip galvanized layer on a surface of the steel sheet and has a specific component composition and a steel microstructure containing, on an area percentage basis, 90% to 100% of martensite and carbide-containing bainite in total and 0% to 10% of retained austenite, and containing prior austenite grains having an aspect ratio of 2.0 or less, in a region extending from 300 ?m to 400 ?m from the surface layer, in which the ratio of the average amount of C at 5 ?m from the surface layer to the average amount of C at 70 ?m from the surface layer is 0.2 to 0.8, and the ratio of the standard deviation of the amount of C to the average amount of C in a region extending from 300 ?m to 400 ?m from the surface layer is 0.40 or less.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 31, 2022
    Applicant: JFE Steel Corporation
    Inventors: Hiroshi Hasegawa, Hidekazu Minami, Tatsuya Nakagaito
  • Publication number: 20220090223
    Abstract: The high-strength hot-dip galvanized steel sheet has a specific chemical composition and the following steel microstructure. In a region extending from 300 to 400 ?m from a surface layer of the steel sheet in a thickness direction of the steel sheet, the total area fraction of martensite and bainite containing carbides is 60 to 100%, and the average grain size of prior austenite is 15 ?m or less. In the region extending from 300 to 400 ?m from the surface layer of the steel sheet in the thickness direction of the steel sheet, the ratio of the height of a peak of P in an Auger electron spectrum at a position 5 nm or more from a prior-austenite grain boundary to the height of a peak of P in an Auger electron spectrum at the prior-austenite grain boundary is 0.20 or more.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 24, 2022
    Applicant: JFE Steel Corporation
    Inventors: Hiroshi Hasegawa, Tatsuya Nakagaito, Yuki Takeda
  • Publication number: 20220082373
    Abstract: A three-dimensional shape measuring method includes: projecting a first grid pattern based on a first light and a first full pattern based on a second light onto a target object, the first light and the second light being lights of two colors included in three primary colors of light; picking up, by a three-color camera, an image of the first grid pattern and the first full pattern projected on the target object, and acquiring a first picked-up image based on the first light and a second picked-up image based on the second light; and calculating height information of the target object, using the first picked-up image, and calculating position information of the target object, using the second picked-up image.
    Type: Application
    Filed: September 15, 2021
    Publication date: March 17, 2022
    Inventors: Shuji NARIMATSU, Hirosada HORIGUCHI, Hiroshi HASEGAWA
  • Publication number: 20220074013
    Abstract: A high-strength hot-dip galvanized steel sheet has a hot-dip galvanized layer on a surface of the steel sheet, a specific component composition, and a steel microstructure containing, on an area percentage basis, 0% to 15% of ferrite and upper bainite in total, 80% to 100% of lower bainite and martensite in total, and 0% to 10% of retained austenite, and containing precipitates having a particle size of 100 to 2,000 nm in an amount of 109 to 1012 particles/m2 in a region extending to a position 100 to 300 ?m from the surface layer of the steel sheet, in which the ratio of the average amount of C at a position 5 ?m from the surface layer of the steel sheet to the average amount of C at a position 70 ?m from the surface layer of the steel sheet in the thickness direction is 0.20 to 0.80.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 10, 2022
    Applicant: JFE Steel Corporation
    Inventors: Hiroshi Hasegawa, Tatsuya Nakagaito
  • Publication number: 20220076435
    Abstract: A three-dimensional shape measuring method includes: projecting a first grid pattern based on a first light and a second grid pattern based on a second light onto a target object in such a way that the first grid pattern and the second grid pattern intersect each other, the first light and the second light being lights of two colors included in three primary colors of light; picking up, by a three-color camera, an image of the first grid pattern and the second grid pattern projected on the target object, and acquiring a first picked-up image based on the first light and a second picked-up image based on the second light; and performing a phase analysis of a grid image with respect to at least one of the first picked-up image and the second picked-up image and calculating height information of the target object.
    Type: Application
    Filed: September 9, 2021
    Publication date: March 10, 2022
    Inventors: Hirosada HORIGUCHI, Shuji NARIMATSU, Hiroshi HASEGAWA
  • Publication number: 20220064754
    Abstract: A high-strength galvanized steel sheet includes a base steel sheet and a galvanized layer on a surface thereof. The base steel sheet has a predetermined chemical composition and a microstructure in which an area fraction of martensite is 30% or less, an area fraction of pearlite is 1% or less, a total area fraction of tempered martensite and carbide-containing bainite is 30% or more and 99% or less, an area fraction of retained austenite is 1% to 20%, and a total area fraction of ferrite and non-carbide-containing bainite is 45% or less in the steel sheet microstructure in a predetermined region and in which an area fraction of retained austenite grains having two or more crystal orientations is 40% or less in all the retained austenite grains in a predetermined region.
    Type: Application
    Filed: October 2, 2019
    Publication date: March 3, 2022
    Applicant: JFE Steel Corporation
    Inventors: Hiroshi Hasegawa, Tatsuya Nakagaito, Kana Sasaki
  • Publication number: 20220055151
    Abstract: The laser welding device includes a laser transmission window and a gas injection nozzle. The gas injection nozzle includes an optical path hole and an injection unit that injects an inert gas for shielding metal vapor into the optical path hole toward an irradiation direction (E) side and an optical axis (A) side of a laser beam (L).
    Type: Application
    Filed: December 4, 2019
    Publication date: February 24, 2022
    Applicant: AISIN AW INDUSTRIES CO., LTD.
    Inventors: Kouji TAKEMOTO, Kazuyoshi MIYAMOTO, Tomoaki YOSHIDA, Daichi SUMIMORI, Hiroshi HASEGAWA
  • Publication number: 20220055150
    Abstract: A laser welding device includes a chamber which has an internal space in which a workpiece is disposed, a laser beam irradiation unit which irradiates the workpiece with a laser beam to weld the workpiece, a vacuum pump which suctions air in the chamber to decrease a pressure in the chamber, a laser transmission window through which the laser beam emitted from the laser beam irradiation unit is transmitted, and a shutter which is disposed on the chamber side with respect to the laser transmission window and closed when the pressure in the chamber is returned to the atmospheric pressure after laser welding.
    Type: Application
    Filed: December 4, 2019
    Publication date: February 24, 2022
    Applicant: AISIN AW INDUSTRIES CO., LTD.
    Inventors: Kouji TAKEMOTO, Kazuyoshi MIYAMOTO, Tomoaki YOSHIDA, Daichi SUMIMORI, Hiroshi HASEGAWA