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).
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Patent number: 11331703Abstract: 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: GrantFiled: August 12, 2016Date of Patent: May 17, 2022Assignee: Nippon Steel CorporationInventors: Yasuyoshi Hidaka, Yasuto Higashida, Yuichi Yamanari, Yuji Yamamoto, Tatsuya Miyai
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Patent number: 11214855Abstract: 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: GrantFiled: August 9, 2018Date of Patent: January 4, 2022Assignee: Nippon Steel CorporationInventors: Yasuyoshi Hidaka, Naoya Shirasawa, Tatsuya Miyai
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Publication number: 20200263282Abstract: 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: ApplicationFiled: August 9, 2018Publication date: August 20, 2020Inventors: Yasuyoshi Hidaka, Naoya Shirasawa, Tatsuya Miyai
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Publication number: 20180354008Abstract: 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: ApplicationFiled: August 12, 2016Publication date: December 13, 2018Inventors: Yasuyoshi Hidaka, Yasuto Higashida, Yuichi Yamanari, Yuji Yamamoto, Tatsuya Miyai
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Patent number: 8329641Abstract: 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: GrantFiled: September 13, 2001Date of Patent: December 11, 2012Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Tatsuya Miyai, Masahiko Tamura
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Patent number: 7544359Abstract: 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: GrantFiled: March 20, 2003Date of Patent: June 9, 2009Assignees: Chugai Seiyaku Kabushiki KaishaInventors: Keiichi Fukuda, Yasuyo Hisaka, Tatsuya Miyai, Masahiko Tamura
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Patent number: 7473425Abstract: 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: GrantFiled: December 27, 2005Date of Patent: January 6, 2009Assignees: Chugai Seiyaku Kabushiki KaishaInventors: Keiichi Fukuda, Yasuyo Hisaka, Tatsuya Miyai, Masahiko Tamura
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Publication number: 20060104942Abstract: 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: ApplicationFiled: December 27, 2005Publication date: May 18, 2006Applicants: Keiichi FUKUDA, Yasuyo HISAKA, CHUGAI SEIYAKU KABUSHIKI KAISHAInventors: Keiichi Fukuda, Yasuyo Hisaka, Tatsuya Miyai, Masahiko Tamura
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Publication number: 20050048026Abstract: 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: ApplicationFiled: September 13, 2001Publication date: March 3, 2005Inventors: Tatsuya Miyai, Masahiko Tamura
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Publication number: 20040019184Abstract: 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: ApplicationFiled: March 20, 2003Publication date: January 29, 2004Applicants: Keiichi Fukuda, Yasuyo Hisaka, Chugai Seiyaku Kabushiki KaishaInventors: Keiichi Fukuda, Yasuyo Hisaka, Tatsuya Miyai, Masahiko Tamura