Patents by Inventor Tatsuya Miyai

Tatsuya Miyai 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: 11331703
    Abstract: A piercer plug with increased life and a method of manufacturing it are provided. The piercer plug 1 includes a tip portion 2 and a trunk portion 3 made of the same material as the tip portion 2 and continuous to the tip portion 2. The trunk portion 3 includes a cylindrical portion 5 having a hole used for attaching a bar. The tip portion 2 is harder than the cylindrical portion 5.
    Type: Grant
    Filed: August 12, 2016
    Date of Patent: May 17, 2022
    Assignee: Nippon Steel Corporation
    Inventors: Yasuyoshi Hidaka, Yasuto Higashida, Yuichi Yamanari, Yuji Yamamoto, Tatsuya Miyai
  • Patent number: 11214855
    Abstract: A piercer plug with increased recyclability is provided. A piercer plug (1) has a chemical composition of, in mass %: 0.15 to 0.30% C; 0.4 to 1.2% Si; 0.2 to 1.5% Mn; 0.1 to 2.0% Ni; 0 to 4.0% Mo and 0 to 4.0% W, where the total content of Mo and W is 1.0 to 6.0%; higher than 1.0% and not higher than 4.0% Cr; 0 to 0.2% B; 0 to 1.0% Nb; 0 to 1.0% V; 0 to 1.0% Ti; and balance Fe and impurities, the plug including a tip portion (2) and a trunk portion (3) made of the same material as the tip portion (2) and contiguous to the tip portion (2). The trunk portion (3) includes a cylindrical portion (5) having a hole used to mount a bar. The tip portion (2) is harder than the cylindrical portion (5).
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: January 4, 2022
    Assignee: Nippon Steel Corporation
    Inventors: Yasuyoshi Hidaka, Naoya Shirasawa, Tatsuya Miyai
  • Publication number: 20200263282
    Abstract: A piercer plug with increased recyclability is provided. A piercer plug (1) has a chemical composition of, in mass %: 0.15 to 0.30% C; 0.4 to 1.2% Si; 0.2 to 1.5% Mn; 0.1 to 2.0% Ni; 0 to 4.0% Mo and 0 to 4.0% W, where the total content of Mo and W is 1.0 to 6.0%; higher than 1.0% and not higher than 4.0% Cr; 0 to 0.2% B; 0 to 1.0% Nb; 0 to 1.0% V; 0 to 1.0% Ti; and balance Fe and impurities, the plug including a tip portion (2) and a trunk portion (3) made of the same material as the tip portion (2) and contiguous to the tip portion (2). The trunk portion (3) includes a cylindrical portion (5) having a hole used to mount a bar. The tip portion (2) is harder than the cylindrical portion (5).
    Type: Application
    Filed: August 9, 2018
    Publication date: August 20, 2020
    Inventors: Yasuyoshi Hidaka, Naoya Shirasawa, Tatsuya Miyai
  • Publication number: 20180354008
    Abstract: A piercer plug with increased life and a method of manufacturing it are provided. The piercer plug 1 includes a tip portion 2 and a trunk portion 3 made of the same material as the tip portion 2 and continuous to the tip portion 2. The trunk portion 3 includes a cylindrical portion 5 having a hole used for attaching a bar. The tip portion 2 is harder than the cylindrical portion 5.
    Type: Application
    Filed: August 12, 2016
    Publication date: December 13, 2018
    Inventors: Yasuyoshi Hidaka, Yasuto Higashida, Yuichi Yamanari, Yuji Yamamoto, Tatsuya Miyai
  • Patent number: 8329641
    Abstract: An effective agent for treating ischemic disease, the agent containing human granulocyte colony-stimulating factor (human G-CSF) as an active ingredient is disclosed. By administering this therapeutic agent, an effective therapy particularly for obstructive arteriosclerosis is provided which can eliminate drawbacks with conventional therapies, such as kinesitherapy, pharmacotherapy, and revascularization, and recently proposed therapies, such as gene therapy and intramuscular transplantation of bone marrow cells. Furthermore, the therapeutic agent can be used as an agent for treating ischemic disease, such as ischemic cerebrovascular disorder or ischemic heart disease.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: December 11, 2012
    Assignee: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Tatsuya Miyai, Masahiko Tamura
  • Patent number: 7544359
    Abstract: An effective remedy for ischemic disease, which contains human granulocyte colony-stimulating factor (human G-CSF) and hepatocyte growth factor (HGF) as active ingredients, is disclosed. By administering this remedy, an effective therapy particularly for obstructive arteriosclerosis is provided which can eliminate drawbacks with conventional therapies such as kinesitherapy, pharmacotherapy, revascularization and recently proposed therapies such as gene therapy and intramuscular inoculation of bone marrow cells. Furthermore, the remedy of the present invention can become a remedy for ischemic disease such as ischemic cerebrovascular disorder or ischemic heart disease.
    Type: Grant
    Filed: March 20, 2003
    Date of Patent: June 9, 2009
    Assignees: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Keiichi Fukuda, Yasuyo Hisaka, Tatsuya Miyai, Masahiko Tamura
  • Patent number: 7473425
    Abstract: An effective remedy for ischemic disease, which contains human granulocyte colony-stimulating factor (human G-CSF) and hepatocyte growth factor (HGF) as active ingredients, is disclosed. By administering this remedy, an effective therapy particularly for obstructive arteriosclerosis is provided which can eliminate drawbacks with conventional therapies such as kinesitherapy, pharmacotherapy, revascularization and recently proposed therapies such as gene therapy and intramuscular inoculation of bone marrow cells. Furthermore, the remedy of the present invention can become a remedy for ischemic disease such as ischemic cerebrovascular disorder or ischemic heart disease.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: January 6, 2009
    Assignees: Chugai Seiyaku Kabushiki Kaisha
    Inventors: Keiichi Fukuda, Yasuyo Hisaka, Tatsuya Miyai, Masahiko Tamura
  • Publication number: 20060104942
    Abstract: An effective remedy for ischemic disease, which contains human granulocyte colony-stimulating factor (human G-CSF) and hepatocyte growth factor (HGF) as active ingredients, is disclosed. By administering this remedy, an effective therapy particularly for obstructive arteriosclerosis is provided which can eliminate drawbacks with conventional therapies such as kinesitherapy, pharmacotherapy, revascularization and recently proposed therapies such as gene therapy and intramuscular inoculation of bone marrow cells. Furthermore, the remedy of the present invention can become a remedy for ischemic disease such as ischemic cerebrovascular disorder or ischemic heart disease.
    Type: Application
    Filed: December 27, 2005
    Publication date: May 18, 2006
    Applicants: Keiichi FUKUDA, Yasuyo HISAKA, CHUGAI SEIYAKU KABUSHIKI KAISHA
    Inventors: Keiichi Fukuda, Yasuyo Hisaka, Tatsuya Miyai, Masahiko Tamura
  • Publication number: 20050048026
    Abstract: An effective agent for treating ischemic disease, the agent containing human granulocyte colony-stimulating factor (human G-CSF) as an active ingredient is disclosed. By administering this therapeutic agent, an effective therapy particularly for obstructive arteriosclerosis is provided which can eliminate drawbacks with conventional therapies, such as kinesitherapy, pharmacotherapy, and revascularization, and recently proposed therapies, such as gene therapy and intramuscular transplantation of bone marrow cells. Furthermore, the therapeutic agent can be used as an agent for treating ischemic disease, such as ischemic cerebrovascular disorder or ischemic heart disease.
    Type: Application
    Filed: September 13, 2001
    Publication date: March 3, 2005
    Inventors: Tatsuya Miyai, Masahiko Tamura
  • Publication number: 20040019184
    Abstract: An effective remedy for ischemic disease, which contains human granulocyte colony-stimulating factor (human G-CSF) and hepatocyte growth factor (HGF) as active ingredients, is disclosed. By administering this remedy, an effective therapy particularly for obstructive arteriosclerosis is provided which can eliminate drawbacks with conventional therapies such as kinesitherapy, pharmacotherapy, revascularization and recently proposed therapies such as gene therapy and intramuscular inoculation of bone marrow cells. Furthermore, the remedy of the present invention can become a remedy for ischemic disease such as ischemic cerebrovascular disorder or ischemic heart disease.
    Type: Application
    Filed: March 20, 2003
    Publication date: January 29, 2004
    Applicants: Keiichi Fukuda, Yasuyo Hisaka, Chugai Seiyaku Kabushiki Kaisha
    Inventors: Keiichi Fukuda, Yasuyo Hisaka, Tatsuya Miyai, Masahiko Tamura