Patents by Inventor Atsushi Koda
Atsushi Koda 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: 20240212896Abstract: An R-T-B based permanent magnet includes rare earth elements, transition metal elements, boron, and M. An amount of boron is within a range between 0.90 mass % or more and 1.00 mass % or less. An amount of carbon is within a range between 0 mass % or more and 0.10 mass % or less, an amount of oxygen is within a range between 0 mass % or more and 0.15 mass % or less, an amount of nitrogen is within a range between 0 mass % or more and 0.15 mass % or less, an amount of M is within a range between 0.30 mass % or more and 1.50 mass % or less, an amount of the rare earth elements based on mass represented by TRE is within a range between 29.00 mass % or more and 31.00 mass % or less, and a value represented by Pr/TRE is within a range between 0.30 or larger and 0.50 or smaller.Type: ApplicationFiled: December 22, 2023Publication date: June 27, 2024Applicant: TDK CORPORATIONInventor: Atsushi KODA
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Publication number: 20240105368Abstract: An R-T-B permanent magnet that contains: main-phase grains composed of an R2T14B compound (where R is a rare earth element, T is a transition metal element, and B is boron); and grain boundaries. R includes Ce. The grain boundaries include multi-grain grain boundaries that are adjacent to three or more main-phase grains. The multi-grain grain boundaries include an R-rich phase, and lamellar or acicular R-T precipitates are present in the R-rich phase.Type: ApplicationFiled: November 10, 2021Publication date: March 28, 2024Applicant: TDK CORPORATIONInventors: Atsushi KODA, Takahiro SUWA, Hikaru KUDO
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Publication number: 20240047103Abstract: An R-T-B-based permanent magnet including: R (rare earth element); T (Fe and Co); B (boron); and one or more selected from Al, Cu, Ga, and Zr. R includes Ce. The total R content is 31.3-34.0 mass % (inclusive), the Co content is 1.85-3.00 mass % (inclusive), the B content is 0.80-0.90 mass % (inclusive), the Al content is 0.03-0.90 mass % (inclusive), the Cu content is 0-0.25 mass % (inclusive), the Ga content is 0-0.10 mass % (inclusive), the Zr content is 0-0.60 mass % (inclusive), and the Fe content is substantially the remainder. The Ce content relative to R is 15-25 mass % (inclusive).Type: ApplicationFiled: November 10, 2021Publication date: February 8, 2024Applicant: TDK CORPORATIONInventors: Hikaru KUDO, Atsushi KODA, Takahiro SUWA
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Publication number: 20240038420Abstract: An R-T-B permanent magnet that contains: main-phase grains composed of an R2T14B compound (where R is a rare earth element, T is a transition metal element, and B is boron); and grain boundaries. R includes Ce. The R-T-B permanent magnet has a Ce content of 15-35 mass % with respect to the total R content. The grain boundaries include an R-rich phase and an R-T phase. In a cross section of the R-T-B permanent magnet, the surface area ratio S(R-T) of the R-T phases with respect to the grain boundaries is 0.60-0.85.Type: ApplicationFiled: November 10, 2021Publication date: February 1, 2024Applicant: TDK CORPORATIONInventors: Atsushi KODA, Takahiro SUWA, Hikaru KUDO
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Publication number: 20230145161Abstract: An order information recording unit records information on an order for a patient. An arrival state recording unit records an arrival state that indicates whether or not a patient has arrived, in association with an order for the patient. An accepting unit accepts patient identification information entered into a portable terminal device. An order retrieval unit retrieves an order related to the patient identification information accepted by the accepting unit. A decision processing unit decides to display an entry screen for medical interview information when the arrival state associated with an order related to the patient identification information indicates that the patient has arrived. A display processing unit displays the entry screen for the medical interview information on the portable terminal device, in response to the decision made by the decision processing unit.Type: ApplicationFiled: January 13, 2023Publication date: May 11, 2023Applicant: OLYMPUS CORPORATIONInventors: Kazuyoshi TAMURA, Atsushi KODA, Tomonori SATO, Hideki YASUDA
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Publication number: 20230025223Abstract: An R-T-B based permanent magnet including R2T14B main phase crystal grains and a grain boundary. R represents one or more rare earth elements, T represents one or more iron group elements essentially including Fe or Fe and Co, and B represents boron. In a cross-section parallel to the alignment direction of the R-T-B based permanent magnet, the coverage of the R2T14B main phase crystal grains is 50.0% or more, and the area ratio of the R2T14B main phase crystal grains is 92.0% or more.Type: ApplicationFiled: November 26, 2020Publication date: January 26, 2023Applicant: TDK CORPORATIONInventors: Yoshinori FUJIKAWA, Atsushi KODA, Mika JINGU, Takashi WATANABE
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Publication number: 20220373053Abstract: A friction material including a friction modifier, a binder, and a fiber base material. A steel fiber is contained as the fiber base material. A natural graphite is contained as a lubricant. A content of copper is 0.5% by mass or less in terms of copper element. A titanate is not contained.Type: ApplicationFiled: December 14, 2020Publication date: November 24, 2022Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Atsushi KODA, Kazuhiko OISHI, Hiroyuki KIMURA
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Patent number: 9108341Abstract: Disclosed are a compression molding apparatus and a molding die, whereby efficient hot-molding is performed. The compression molding apparatus performs a molding by providing a raw material into the molding die, and applying heat and pressure to the material. The apparatus is provided with: a first molding die, which forms a molding frame that surrounds a region where the raw material is compression-molded; a second molding die, which compresses the raw material provided into the molding frame; and a heat source section, which supports and heats the second molding die. The second molding die has: a first heat pipe, which has one end positioned on the heat source section side, and the other end positioned on the side of a pressing surface that presses the raw material; and a heat insulating layer, which wraps the first heat pipe along the longitudinal direction of the first heat pipe.Type: GrantFiled: March 8, 2011Date of Patent: August 18, 2015Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Rie Sugie, Toshihiro Hoshi, Tadahiro Mita, Kunihiro Fukue, Atsushi Koda, Kazuya Ayabe
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Publication number: 20130285586Abstract: An inverter control device of the present invention operates by synchronous commutation in which a commutation signal waveform is output with an electric angle of less than 180 degrees at a predetermined frequency according to a target rotation speed of a brushless DC motor. In order to maintain an induced voltage phase of a brushless DC motor at a predetermined phase with respect to an output voltage of an inverter circuit unit, even in an operation by the synchronous commutation, the output voltage of the inverter circuit unit is changed according to a change in state of the induced voltage phase of the brushless DC motor to continue a running state of the motor. Therefore, a more stable motor operation can be performed during synchronous running by the forced commutation.Type: ApplicationFiled: September 9, 2011Publication date: October 31, 2013Applicant: PANASONIC CORPORATIONInventors: Atsushi Koda, Hideharu Ogahara
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Publication number: 20130040012Abstract: Disclosed are a compression molding apparatus and a molding die, whereby efficient hot-molding is performed. The compression molding apparatus performs a molding by providing a raw material into the molding die, and applying heat and pressure to the material. The apparatus is provided with: a first molding die, which forms a molding frame that surrounds a region where the raw material is compression-molded; a second molding die, which compresses the raw material provided into the molding frame; and a heat source section, which supports and heats the second molding die. The second molding die has: a first heat pipe, which has one end positioned on the heat source section side, and the other end positioned on the side of a pressing surface that presses the raw material; and a heat insulating layer, which wraps the first heat pipe along the longitudinal direction of the first heat pipe.Type: ApplicationFiled: March 8, 2011Publication date: February 14, 2013Applicant: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Rie Sugie, Toshihiro Hoshi, Tadahiro Mita, Kunihiro Fukue, Atsushi Koda, Kazuya Ayabe
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Publication number: 20130002178Abstract: An inverter control device controls the operation of a brushless DC motor selsorlessly. A driving controller of the inverter control device switches commutation of switching elements from control based on a position detection commutation signal to control based on a forced synchronization commutation signal if an output voltage of an inverter circuit section is equal to or greater than a preset threshold and a value of a rotational speed detected by the rotational speed detector is equal to or less than a reference value less than a target value of the rotational speed. The output voltage controller of the inverter control device changes the output voltage control signal based on a phase difference detected by a phase difference detector when the driving controller is controlling commutation of switching elements based on the forced synchronization commutation signal.Type: ApplicationFiled: June 27, 2012Publication date: January 3, 2013Applicant: PANASONIC CORPORATIONInventors: Katsumi ENDOU, Mitsuhiro FUKUDA, Atsushi KODA
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Publication number: 20110037423Abstract: An inverter controller reduces a conduction angle of inverter circuit (204) within a range greater than 120 degree in electric angles when a time difference between intervals between each of position sensing and a total time of a time from an occurrence of a position sensing signal until the start of a commutation work to be done by inverter circuit (204) plus a time duration of a spike voltage becomes shorter than a predetermined reference time. This reduction of the conduction angle allows increasing a position sensible range, so that a position of magnetic poles of a rotor cannot be missed. The inverter controller thus can prevent a motor from falling into out-of-sync caused by a change in load or in voltage.Type: ApplicationFiled: April 16, 2009Publication date: February 17, 2011Applicant: Panasonic CorporationInventors: Atsushi Koda, Hideharu Ogahara
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Patent number: 4954915Abstract: An automatic cassette changer includes a large number of cassette storing racks in each of which a cassette is stored, a cassette transporter, and a recording and reproducing device. Automatic selective exchanging of cassettes between the cassette storing racks and the recording and reproducing device is performed by the cassette transporter. The changer has a sliding member that moves from a retracted position to an extended position and thereby moves a cassette pressing member from a retracted position to an extended position against the bias exerted by return springs so that a cassette stored in a cassette storing rack may be pushed out towards the cassette transporter by the cassette pressing member. However, the return springs avoid the possibility that a cassette stored in the cassette storing rack will accidentally jump out toward the cassette transporter and thus prevent accidental collision between the cassette and the cassette transporter.Type: GrantFiled: August 16, 1988Date of Patent: September 4, 1990Assignee: Sony CorporationInventors: Atsushi Koda, Shinji Okuda, Wataru Nonaka