Patents by Inventor Atsushi Yanagawa
Atsushi Yanagawa 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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Publication number: 20240096145Abstract: A noise generation cause identifying method and a noise generation cause identifying device are provided. A response correcting process corrects a sound signal obtained through a sound signal obtaining process based on obtained model information so that a frequency response of the obtained sound signal approaches a frequency response of a learning sound signal. A variable obtaining process obtains a variable output from a map by inputting the corrected sound signal to the map. A cause identifying process identifies a generation cause of a sound picked up by a microphone using the variable obtained through the variable obtaining process.Type: ApplicationFiled: April 27, 2023Publication date: March 21, 2024Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Shinichi TAKEUCHI, Atsushi TABATA, Mitsuo OKUBO, Shingo NORITAKE, Akira MURAKAMI, Ryo YANAGAWA
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Patent number: 11011196Abstract: A spindle motor includes a rotating part, a base member, a connector, and a connector accommodating recess in the base member. The connector accommodating recess includes a bottom surface and an annular wall surface extending from the bottom surface to the outer surface. A through-hole is formed in the bottom surface. The bottom surface includes a first annular surface extending toward the annular wall surface from a peripheral edge of the through-hole, and a second annular surface extending around the first annular surface on an axial outer surface side of the base member relatively to the first annular surface. The connector contacts the second annular surface. A first gap between the connector and the first annular surface is filled with an adhesive. An interface of the adhesive extends i to protrude from an inner peripheral surface of the through-hole over an entire circumference of the through-hole.Type: GrantFiled: August 27, 2020Date of Patent: May 18, 2021Assignee: MINEBEA MITSUMI INC.Inventors: Hideaki Showa, Atsushi Yanagawa
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Publication number: 20210065740Abstract: A spindle motor includes a rotating part, a base member, a connector, and a connector accommodating recess in the base member. The connector accommodating recess includes a bottom surface and an annular wall surface extending from the bottom surface to the outer surface. A through-hole is formed in the bottom surface. The bottom surface includes a first annular surface extending toward the annular wall surface from a peripheral edge of the through-hole, and a second annular surface extending around the first annular surface on an axial outer surface side of the base member relatively to the first annular surface. The connector contacts the second annular surface. A first gap between the connector and the first annular surface is filled with an adhesive. An interface of the adhesive extends i to protrude from an inner peripheral surface of the through-hole over an entire circumference of the through-hole.Type: ApplicationFiled: August 27, 2020Publication date: March 4, 2021Inventors: Hideaki SHOWA, Atsushi YANAGAWA
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Patent number: 9033580Abstract: The fluid dynamic bearing system has at, least one stationary part, and at least one rotating part that is supported rotatable about a rotational axis with respect to the stationary part. A bearing gap filled with bearing fluid is formed between mutually opposing surfaces of the stationary and of the rotating part. The bearing system includes at least one fluid dynamic radial bearing and at least one fluid dynamic axial bearing that are disposed along sections of the bearing gap. In one aspect of the invention, an annular sealing gap for sealing open ends of the bearing gap has one end connected to the bearing gap and one end connected to an annular reservoir, the outside radius of the reservoir measured from the rotational axis being larger than the outside radius of the sealing gap.Type: GrantFiled: December 3, 2013Date of Patent: May 19, 2015Assignee: MINEBEA CO., LTD.Inventors: Thomas Fuss, Martin Engesser, Atsushi Yanagawa, Werner Schmid, Carsten Etling
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Publication number: 20140093197Abstract: The fluid dynamic bearing system has at, least one stationary part, and at least one rotating part that is supported rotatable about a rotational axis with respect to the stationary part. A bearing gap filled with bearing fluid is formed between mutually opposing surfaces of the stationary and of the rotating part. The bearing system includes at least one fluid dynamic radial bearing and at least one fluid dynamic axial bearing that are disposed along sections of the bearing gap. In one aspect of the invention, an annular sealing gap for sealing open ends of the bearing gap has one end connected to the bearing gap and one end connected to an annular reservoir, the outside radius of the reservoir measured from the rotational axis being larger than the outside radius of the sealing gap.Type: ApplicationFiled: December 3, 2013Publication date: April 3, 2014Applicant: MINEBEA CO., LTD.Inventors: Thomas FUSS, Martin ENGESSER, Atsushi YANAGAWA, Werner SCHMID, Carsten ETLING
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Patent number: 8613552Abstract: The fluid dynamic bearing system has at least one stationary part, and at least one rotating part that is supported rotatable about a rotational axis with respect to the stationary part. A bearing gap filled with bearing fluid is formed between mutually opposing surfaces of the stationary and of the rotating part. The bearing system includes at least one fluid dynamic radial bearing and at least one fluid dynamic axial bearing that are disposed along sections of the bearing gap. In one aspect of the invention, an annular sealing gap for sealing open ends of the bearing gap has one end connected to the bearing gap and one end connected to an annular reservoir, the outside radius of the reservoir measured from the rotational axis being larger than the outside radius of the sealing gap.Type: GrantFiled: November 17, 2009Date of Patent: December 24, 2013Assignee: Minebea Co., Ltd.Inventors: Thomas Fuss, Martin Engesser, Atsushi Yanagawa, Werner Schmid, Carsten Etling
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Patent number: 8353632Abstract: The fluid dynamic bearing system has at least one stationary part, and at least one rotating part that is supported rotatable about a rotational axis with respect to the stationary part. A bearing gap filled with bearing fluid is formed between mutually opposing surfaces of the stationary and of the rotating part. The bearing system includes at least one fluid dynamic radial bearing and at least one fluid dynamic axial bearing that are disposed along sections of the bearing gap. In one aspect of the invention, an annular sealing gap for sealing open ends of the bearing gap has one end connected to the bearing gap and one end connected to an annular reservoir, the outside radius of the reservoir measured from the rotational axis being larger than the outside radius of the sealing gap.Type: GrantFiled: November 17, 2009Date of Patent: January 15, 2013Assignee: Minebea Co., Ltd.Inventors: Thomas Fuss, Martin Engesser, Atsushi Yanagawa, Werner Schmid, Carsten Etling
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Publication number: 20100124387Abstract: The fluid dynamic bearing system has at least one stationary part, and at least one rotating part that is supported rotatable about a rotational axis with respect to the stationary part. A bearing gap filled with bearing fluid is formed between mutually opposing surfaces of the stationary and of the rotating part. The bearing system comprises at least one fluid dynamic radial bearing and at least one fluid dynamic axial bearing that are disposed along sections of the bearing gap. Moreover, sealing means for sealing the open ends of the bearing gap are provided. According to the invention, one of the sealing means comprises an annular sealing gap that has one end connected to the bearing gap and one end connected to an annular reservoir, the outside radius of the reservoir measured from the rotational axis being larger than the outside radius of the sealing gap.Type: ApplicationFiled: November 17, 2009Publication date: May 20, 2010Inventors: Thomas Fuss, Martin Engesser, Atsushi Yanagawa, Werner Schmid, Carsten Etling