Patents by Inventor Tetsuya Matsuo
Tetsuya Matsuo 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: 11835058Abstract: An impeller includes: a disk-shaped hub centered on an axis; and a plurality of blades arranged in a circumferential direction and protruding from a surface of the hub facing one side in a direction of the axis. In a cross-sectional view including a blade height direction which is a direction away from the hub toward a tip of each blade, the blade has a recessed surface curved convexly toward a rear side in a rotational direction. In the cross-sectional view, when a distance between an imaginary line connecting a tip-side edge and a hub-side edge of the blade and a midspan of the blade along a direction perpendicular to the imaginary line is defined as a recess amount, the blade has a portion where the recess amount increases from a leading edge side to a trailing edge side.Type: GrantFiled: April 21, 2021Date of Patent: December 5, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES MARINE MACHINERY & EQUIPMENT CO., LTD.Inventors: Hironori Honda, Nao Taniguchi, Fumito Hiratani, Isao Tomita, Tetsuya Matsuo, Taiyo Shirakawa
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Patent number: 11732607Abstract: Provided is a bearing structure that can support a rotary shaft with a small number of components. The bearing structure includes: a cylindrical sleeve (32) provided so as to surround the outer circumference of a rotary shaft (4) that rotates about a center axis line (CL) and configured to rotate together with the rotary shaft (4); thrust collars (34a, 34b) provided so as to abut against both ends in the center axis line (CL) direction of the cylindrical sleeve (32), respectively, having a larger diameter than the cylindrical sleeve (32), and configured to rotate together with the rotary shaft (4); and a compressor-side journal bearing (12) arranged on the outer circumference side of the cylindrical sleeve (32) and between the thrust collars (34a, 34b).Type: GrantFiled: January 28, 2020Date of Patent: August 22, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES MARINE MACHINERY & EQUIPMENT CO., LTD.Inventors: Taiyo Shirakawa, Yasuhiro Wada, Yukihiro Iwasa, Tetsuya Matsuo
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Publication number: 20230123100Abstract: An impeller includes: a disk-shaped hub centered on an axis; and a plurality of blades arranged in a circumferential direction and protruding from a surface of the hub facing one side in a direction of the axis. In a cross-sectional view including a blade height direction which is a direction away from the hub toward a tip of each blade, the blade has a recessed surface curved convexly toward a rear side in a rotational direction. In the cross-sectional view, when a distance between an imaginary line connecting a tip-side edge and a hub-side edge of the blade and a midspan of the blade along a direction perpendicular to the imaginary line is defined as a recess amount, the blade has a portion where the recess amount increases from a leading edge side to a trailing edge side.Type: ApplicationFiled: April 21, 2021Publication date: April 20, 2023Applicant: Mitsubishi Heavy Industries Marine Machinery & Equipment Co., Ltd.Inventors: Hironori Honda, Nao Taniguchi, Fumito Hiratani, Isao Tomita, Tetsuya Matsuo, Taiyo Shirakawa
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Patent number: 11415021Abstract: A bearing device includes: a bearing housing; a floating metal having a cylindrical shape and disposed in a housing hole of the bearing housing and in which a rotational shaft is inserted; and a positioning pin for positioning the floating metal with respect to the bearing housing, the positioning pin being disposed along a radial direction of the rotational shaft. The positioning pin includes a first oil supply hole formed so as to penetrate the positioning pin and communicating with a first space between an inner peripheral surface of the floating metal and an outer peripheral surface of the rotational shaft, and a second oil supply hole formed inside the positioning pin so as to connect a second space to the first oil supply hole, the second space being disposed between an outer peripheral surface of the floating metal and an inner peripheral surface of the housing hole.Type: GrantFiled: July 22, 2019Date of Patent: August 16, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES MARINE MACHINERY & EQUIPMENT CO., LTD.Inventors: Taiyo Shirakawa, Yasuhiro Wada, Yukihiro Iwasa, Tetsuya Matsuo
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Publication number: 20220127972Abstract: Provided is a bearing structure that can support a rotary shaft with a small number of components. The bearing structure includes: a cylindrical sleeve (32) provided so as to surround the outer circumference of a rotary shaft (4) that rotates about a center axis line (CL) and configured to rotate together with the rotary shaft (4); thrust collars (34a, 34b) provided so as to abut against both ends in the center axis line (CL) direction of the cylindrical sleeve (32), respectively, having a larger diameter than the cylindrical sleeve (32), and configured to rotate together with the rotary shaft (4); and a compressor-side journal bearing (12) arranged on the outer circumference side of the cylindrical sleeve (32) and between the thrust collars (34a, 34b).Type: ApplicationFiled: January 28, 2020Publication date: April 28, 2022Applicant: MITSUBISHI HEAVY INDUSTRIES MARINE MACHINERY & EQUIPMENT CO., LTD.Inventors: Taiyo Shirakawa, Yasuhiro Wada, Yukihiro Iwasa, Tetsuya Matsuo
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Publication number: 20210231029Abstract: A bearing device includes: a bearing housing; a floating metal having a cylindrical shape and disposed in a housing hole of the bearing housing and in which a rotational shaft is inserted; and a positioning pin for positioning the floating metal with respect to the bearing housing, the positioning pin being disposed along a radial direction of the rotational shaft. The positioning pin includes a first oil supply hole formed so as to penetrate the positioning pin and communicating with a first space between an inner peripheral surface of the floating metal and an outer peripheral surface of the rotational shaft, and a second oil supply hole formed inside the positioning pin so as to connect a second space to the first oil supply hole, the second space being disposed between an outer peripheral surface of the floating metal and an inner peripheral surface of the housing hole.Type: ApplicationFiled: July 22, 2019Publication date: July 29, 2021Applicant: MITSUBISHI HEAVY INDUSTRIES MARINE MACHINERY & EQUIPMENT CO., LTD.Inventors: Taiyo Shirakawa, Yasuhiro Wada, Yukihiro Iwasa, Tetsuya Matsuo
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Publication number: 20120314977Abstract: A method for heat-bonding together a film and a zipper tape using a heat bonding device including a guide unit which has at a first flat surface a linearly extending first groove for guiding an engaging elements of a zipper tape, the groove being slightly wider than a width of the engaging elements and slightly shallower than a height of the zipper tape, and which has cooling means for keeping a vicinity of the first groove cold, and a first heating unit that is disposed facing the first flat surface of the guide unit, has a third flat surface that is so shaped as to cover the first groove, and has a mechanism such that the third flat surface approaches and is separated from the position of the first flat surface.Type: ApplicationFiled: June 11, 2012Publication date: December 13, 2012Inventor: Tetsuya MATSUO
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Patent number: 4634671Abstract: A water-soluble cross-linked polymer of the enzyme lysyl endopeptidase produced by Achromobacter lyticus and a process for preparing the polymer as well as a semi-synthesis of human insulin using the polymer.Type: GrantFiled: September 19, 1983Date of Patent: January 6, 1987Assignee: Wako Pure Chemical Industries, Ltd.Inventors: Yoshitsugu Sakata, Akinori Shintani, Tetsuya Matsuo, Haruhiko Sugiyama, Nobuyuki Tokioka