Patents by Inventor Hiroshi KOYANAGI

Hiroshi KOYANAGI 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: 11994315
    Abstract: An air-conditioning apparatus includes a heat-source detection unit provided at the front of a housing. The heat-source detection unit includes an infrared sensor that detects a heat source in an air-conditioned space and a supporting member that supports the infrared sensor. The supporting member is rotated about an axis that extends in a vertical direction. Part of the infrared sensor that corresponds to the field of view thereof is exposed when the infrared sensor faces the air-conditioned space, and the part of the infrared sensor is concealed when the infrared sensor does not face the air-conditioned space.
    Type: Grant
    Filed: August 8, 2019
    Date of Patent: May 28, 2024
    Assignee: Mitsubishi Electric Corporation
    Inventors: Masayuki Oishi, Hiroshi Hirosaki, Yohei Koyanagi, Kazuki Nagai
  • Publication number: 20240128086
    Abstract: A method of processing a wafer includes a composite substrate forming step of joining a face side of a wafer and a surface of a support substrate to each other with a joint member interposed therebetween, a grinding step of grinding a reverse side of the wafer of the composite substrate to thin down the wafer to a finished thickness, a transfer member affixing step of affixing a transfer member to the reverse side of the wafer, a joint member breaking step of breaking the joint member by applying a laser beam having a wavelength transmittable through the support substrate and absorbable by the joint member to the composite substrate from another surface side of the support substrate, and a transferring step of peeling off the support substrate from the wafer and transferring the wafer to the transfer member.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 18, 2024
    Inventors: Hiroshi MORIKAZU, Yuki SUTO, Tasuku KOYANAGI, Masato TERAJIMA, Junya MIMURA
  • Patent number: 11676632
    Abstract: The present invention relates to a magnetic recording medium including a substrate; an underlayer laminated upon the substrate; and a magnetic layer laminated upon the underlayer, wherein the underlayer includes a first underlayer containing a compound represented by a following general formula: MgO(1-X), where X is within a range of 0.07 to 0.25, the magnetic layer includes a first magnetic layer containing an alloy having a L10 structure, and the alloy having the L10 structure includes B, and the first underlayer is in contact with the first magnetic layer.
    Type: Grant
    Filed: November 25, 2020
    Date of Patent: June 13, 2023
    Assignee: RESONAC CORPORATION
    Inventors: Takayuki Fukushima, Lei Zhang, Chen Xu, Hisato Shibata, Takehiro Yamaguchi, Hiroshi Koyanagi, Yuji Umemoto
  • Publication number: 20220041969
    Abstract: The cell culture chip includes a bottom substrate and a base body part. The base body part includes a plurality of first portions for forming the culture space, and a cavity penetrating the base body part in a region where the first portions are not formed. The first portions each include a recessed region and a plurality of opening grooves that are formed through the base body part from a plurality of places inside the recessed region. In the cavity, at least a part of an end is positioned inside an outer edge of the base body part. The bottom substrate and the first surface of the base body part are bonded together to form the culture space in which the recessed region is sandwiched between the bottom substrate and the base body part.
    Type: Application
    Filed: February 17, 2020
    Publication date: February 10, 2022
    Applicant: Ushio Denki Kabushiki Kaisha
    Inventors: Kenichi HIROSE, Hiroshi KOYANAGI
  • Patent number: 11189313
    Abstract: A magnetic recording medium includes a substrate, an underlayer provided above the substrate, and a magnetic layer provided on and in contact with the underlayer. The underlayer includes a compound represented by a general formula MgO(1-x), where x falls within a range of 0.07 to 0.25. The magnetic layer includes an alloy having a L10 structure, and the alloy having the L10 structure includes one or more elements selected from a group consisting of Al, Si, Ga, and Ge.
    Type: Grant
    Filed: January 5, 2021
    Date of Patent: November 30, 2021
    Assignee: SHOWA DENKO K.K.
    Inventors: Koichi Nagasaka, Takayuki Fukushima, Lei Zhang, Chen Xu, Hisato Shibata, Takehiro Yamaguchi, Hiroshi Koyanagi, Yuji Umemoto
  • Publication number: 20210256998
    Abstract: A magnetic recording medium includes a substrate, an underlayer provided above the substrate, and a magnetic layer provided on and in contact with the underlayer. The underlayer includes a compound represented by a general formula MgO(1-x), where x falls within a range of 0.07 to 0.25. The magnetic layer includes an alloy having a L10 structure, and the alloy having the L10 structure includes one or more elements selected from a group consisting of Al, Si, Ga, and Ge.
    Type: Application
    Filed: January 5, 2021
    Publication date: August 19, 2021
    Inventors: Koichi NAGASAKA, Takayuki FUKUSHIMA, Lei ZHANG, Chen XU, Hisato SHIBATA, Takehiro YAMAGUCHI, Hiroshi KOYANAGI, Yuji UMEMOTO
  • Publication number: 20210201944
    Abstract: A magnetic recording medium includes a substrate; a soft magnetic underlayer laminated on the substrate; an amorphous barrier layer laminated on the soft magnetic underlayer; and a magnetic recording layer laminated on the amorphous barrier layer, wherein the soft magnetic underlayer includes Fe, B, Si, and one or more elements selected from the group consisting of Nb, Zr, Mo, and Ta, wherein the amorphous barrier layer includes Si, W, and one or more elements selected from the group consisting of Nb, Zr, Mo, and Ta, and wherein the magnetic recording layer includes an alloy having an L10 structure.
    Type: Application
    Filed: December 9, 2020
    Publication date: July 1, 2021
    Inventors: Takehiro YAMAGUCHI, Takayuki FUKUSHIMA, Lei ZHANG, Hisato SHIBATA, Chen XU, Hiroshi KOYANAGI, Yuji UMEMOTO
  • Publication number: 20210201947
    Abstract: The present invention relates to a magnetic recording medium including a substrate; an underlayer laminated upon the substrate; and a magnetic layer laminated upon the underlayer, wherein the underlayer includes a first underlayer containing a compound represented by a following general formula: MgO(1-X), where X is within a range of 0.07 to 0.25, the magnetic layer includes a first magnetic layer containing an alloy having a L10 structure, and the alloy having the L10 structure includes B, and the first underlayer is in contact with the first magnetic layer.
    Type: Application
    Filed: November 25, 2020
    Publication date: July 1, 2021
    Inventors: Takayuki FUKUSHIMA, Lei ZHANG, Chen XU, Hisato SHIBATA, Takehiro YAMAGUCHI, Hiroshi KOYANAGI, Yuji UMEMOTO
  • Patent number: 11043238
    Abstract: A magnetic recording medium includes a substrate; a soft magnetic underlayer laminated on the substrate; an amorphous barrier layer laminated on the soft magnetic underlayer; and a magnetic recording layer laminated on the amorphous barrier layer, wherein the soft magnetic underlayer includes Fe, B, Si, and one or more elements selected from the group consisting of Nb, Zr, Mo, and Ta, wherein the amorphous barrier layer includes Si, W, and one or more elements selected from the group consisting of Nb, Zr, Mo, and Ta, and wherein the magnetic recording layer includes an alloy having an L10 structure.
    Type: Grant
    Filed: December 9, 2020
    Date of Patent: June 22, 2021
    Assignee: SHOWA DENKO K.K.
    Inventors: Takehiro Yamaguchi, Takayuki Fukushima, Lei Zhang, Hisato Shibata, Chen Xu, Hiroshi Koyanagi, Yuji Umemoto
  • Patent number: 11024334
    Abstract: A magnetic recording medium includes a substrate, an underlayer, and a magnetic layer that are arranged in this order. The magnetic layer has a granular structure including magnetic grains having a L10 crystal structure, and grain boundary parts having a volume fraction in a range of 25 volume % to 50 volume %. The magnetic grains have a c-axis orientation with respect to the substrate. The grain boundary parts include a material having a lattice constant in a range of 0.30 nm to 0.36 nm, or in a range of 0.60 nm to 0.72 nm.
    Type: Grant
    Filed: March 31, 2020
    Date of Patent: June 1, 2021
    Assignee: SHOWA DENKO K.K.
    Inventors: Takayuki Fukushima, Chen Xu, Lei Zhang, Hisato Shibata, Takehiro Yamaguchi, Kazuya Niwa, Tomoo Shige, Hiroaki Nemoto, Yuji Umemoto, Hiroshi Koyanagi
  • Publication number: 20200357436
    Abstract: A magnetic recording medium includes a substrate, an underlayer formed on the substrate, and a magnetic layer formed on the underlayer. The magnetic layer includes an alloy having a L10 structure. The underlayer includes a first underlayer and a second underlayer. The first underlayer includes Mo and Ru, the content of Ru in the first underlayer is in a range of 5 atom % to 30 atom %, and the second underlayer includes a material having a body-centered cubic (BCC) structure. The second underlayer is formed between the first underlayer and the substrate.
    Type: Application
    Filed: April 30, 2020
    Publication date: November 12, 2020
    Inventors: Chen XU, Lei ZHANG, Takayuki FUKUSHIMA, Hisato SHIBATA, Takehiro YAMAGUCHI, Kazuya NIWA, Tomoo SHIGE, Hiroaki NEMOTO, Yuji UMEMOTO, Hiroshi KOYANAGI
  • Publication number: 20200327905
    Abstract: A magnetic recording medium includes a substrate, an underlayer, and a magnetic layer that are arranged in this order. The magnetic layer has a granular structure including magnetic grains having a L10 crystal structure, and grain boundary parts having a volume fraction in a range of 25 volume % to 50 volume %. The magnetic grains have a c-axis orientation with respect to the substrate. The grain boundary parts include a material having a lattice constant in a range of 0.30 nm to 0.36 nm, or in a range of 0.60 nm to 0.72 nm.
    Type: Application
    Filed: March 31, 2020
    Publication date: October 15, 2020
    Inventors: Takayuki FUKUSHIMA, Chen XU, Lei ZHANG, Hisato SHIBATA, Takehiro YAMAGUCHI, Kazuya NIWA, Tomoo SHIGE, Hiroaki NEMOTO, Yuji UMEMOTO, Hiroshi KOYANAGI
  • Patent number: 10685674
    Abstract: A magnetic recording medium includes: a substrate; an underlayer; a magnetic layer including an alloy having an L10 type crystal structure; and a protective layer, wherein the substrate, the underlayer, the magnetic layer, and the protective layer are stacked in the recited order. A pinning layer is further included between the magnetic layer and the protective layer, and the pinning layer includes a magnetic material including Co and includes at least one metal selected from the group consisting of Cu, Ag, Au, and Al.
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: June 16, 2020
    Assignee: SHOWA DENKO K.K.
    Inventors: Takayuki Fukushima, Hisato Shibata, Yuji Umemoto, Kazuya Niwa, Lei Zhang, Takehiro Yamaguchi, Chen Xu, Tomoo Shige, Hiroshi Koyanagi
  • Patent number: 10614849
    Abstract: A heat-assisted magnetic recording medium includes a substrate, an underlayer, and a magnetic layer including an alloy having a L10 crystal structure and first and second layers, arranged in this order. Each of the first and second layers has a granular structure including C, SiO2, and BN at grain boundaries. Vol % of the grain boundaries in each of the first and second layers is 25 to 45 vol %. Vol % of C in the first layer is 5 to 22 vol %, and a volume ratio of SiO2 with respect to BN in each of the first and second layers is 0.25 to 3.5. Vol % of SiO2 in the second layer is greater than that of the first layer by 5 vol % or more. Vol % of BN in the second layer is smaller than that in the first layer by 2 vol % or more.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: April 7, 2020
    Assignee: SHOWA DENKO K.K.
    Inventors: Takayuki Fukushima, Koji Take, Hisato Shibata, Takehiro Yamaguchi, Tomoo Shige, Lei Zhang, Chen Xu, Yuji Umemoto, Hiroshi Koyanagi, Kazuya Niwa, Tetsuya Kanbe
  • Publication number: 20200075053
    Abstract: A heat-assisted magnetic recording medium includes a substrate, an underlayer, and a magnetic layer including an alloy having a L10 crystal structure and first and second layers, arranged in this order. Each of the first and second layers has a granular structure including C, SiO2, and BN at grain boundaries. Vol % of the grain boundaries in each of the first and second layers is 25 to 45 vol %. Vol % of C in the first layer is 5 to 22 vol %, and a volume ratio of SiO2 with respect to BN in each of the first and second layers is 0.25 to 3.5. Vol % of SiO2 in the second layer is greater than that of the first layer by 5 vol % or more. Vol % of BN in the second layer is smaller than that in the first layer by 2 vol % or more.
    Type: Application
    Filed: July 23, 2019
    Publication date: March 5, 2020
    Inventors: Takayuki FUKUSHIMA, Koji TAKE, Hisato SHIBATA, Takehiro YAMAGUCHI, Tomoo SHIGE, Lei ZHANG, Chen XU, Yuji UMEMOTO, Hiroshi KOYANAGI, Kazuya NIWA, Tetsuya KANBE
  • Publication number: 20190392863
    Abstract: A magnetic recording medium includes: a substrate; an underlayer; a magnetic layer including an alloy having an L10 type crystal structure; and a protective layer, wherein the substrate, the underlayer, the magnetic layer, and the protective layer are stacked in the recited order. A pinning layer is further included between the magnetic layer and the protective layer, and the pinning layer includes a magnetic material including Co and includes at least one metal selected from the group consisting of Cu, Ag, Au, and Al.
    Type: Application
    Filed: June 19, 2019
    Publication date: December 26, 2019
    Inventors: Takayuki FUKUSHIMA, Hisato SHIBATA, Yuji UMEMOTO, Kazuya NIWA, Lei ZHANG, Takehiro YAMAGUCHI, Chen XU, Tomoo SHIGE, Hiroshi KOYANAGI