Patents by Inventor Tadashi Oshima
Tadashi Oshima 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: 11910282Abstract: Determination is made as to whether or not to enable communications by a communication processing unit with an on-board unit, on the basis of a receive strength detected from a radio wave received via a communication antenna, and the angle of arrival and the receive strength of a direct wave and the angle of arrival and the receive strength of a reflected wave, the angles of arrival and the receive strengths being estimated from one or more radio waves received via an angle measurement antenna.Type: GrantFiled: October 8, 2021Date of Patent: February 20, 2024Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Tadashi Oshima, Nobuhiro Suzuki, Yoshiaki Tsuda, Takafumi Yokoe
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Publication number: 20240044368Abstract: A sliding member includes a metal substrate and a sliding layer formed on one surface of the metal substrate. The sliding layer has a matrix phase containing Cu and Sn and hard particles dispersed in the matrix phase and containing a Laves phase constituted of a composition of Co, Mo and Si.Type: ApplicationFiled: November 1, 2021Publication date: February 8, 2024Inventors: Naoki SATO, Toshio HAKUTO, Takashi AKAGAWA, Yuji KAWAMATA, Ryoichi SUZUKI, Takashi SAITO, Tadashi OSHIMA, Hajime KATO
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Patent number: 11754671Abstract: A subarray spatial averaging unit performs spatial averaging of correlation matrices by dividing a received signal of an array antenna to a plurality of subarrays having different shapes, and calculating these correlation matrices for the respective subarrays having different shapes. An eigenvalue expanding unit performs eigenvalue expansion of correlation matrices for the respective plurality of subarrays having different shapes after spatial averaging. A wave count estimating unit estimates an incoming wave count by integrating eigenvalues of the plurality of subarrays having different shapes obtained by the eigenvalue expanding unit.Type: GrantFiled: May 7, 2018Date of Patent: September 12, 2023Assignee: Mitsubishi Electric CorporationInventors: Tadashi Oshima, Yuichi Goda, Nobuhiro Suzuki
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Publication number: 20220030401Abstract: Determination is made as to whether or not to enable communications by a communication processing unit with an on-board unit, on the basis of a receive strength detected from a radio wave received via a communication antenna, and the angle of arrival and the receive strength of a direct wave and the angle of arrival and the receive strength of a reflected wave, the angles of arrival and the receive strengths being estimated from one or more radio waves received via an angle measurement antenna.Type: ApplicationFiled: October 8, 2021Publication date: January 27, 2022Applicant: Mitsubishi Electric CorporationInventors: Tadashi OSHIMA, Nobuhiro SUZUKI, Yoshiaki TSUDA, Takafumi YOKOE
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Patent number: 11091821Abstract: A copper-based alloy which includes Cu, Ni, Si, Fe, and Mg, and at least one selected from the group consisting of Mo, W, and V, and in which a content of Mg is 0.02 mass % or more. The copper-based alloy exhibits wear resistance and improved weldability with respect to a substrate.Type: GrantFiled: March 5, 2019Date of Patent: August 17, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Minoru Kawasaki, Natsuki Sugiyama, Hisao Fukuhara, Tadashi Oshima, Hajime Kato, Kouji Tanaka, Takashi Saito
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Publication number: 20210199757Abstract: A subarray spatial averaging unit performs spatial averaging of correlation matrices by dividing a received signal of an array antenna to a plurality of subarrays having different shapes, and calculating these correlation matrices for the respective subarrays having different shapes. An eigenvalue expanding unit performs eigenvalue expansion of correlation matrices for the respective plurality of subarrays having different shapes after spatial averaging. A wave count estimating unit estimates an incoming wave count by integrating eigenvalues of the plurality of subarrays having different shapes obtained by the eigenvalue expanding unit.Type: ApplicationFiled: May 7, 2018Publication date: July 1, 2021Applicant: Mitsubishi Electric CorporationInventors: Tadashi OSHIMA, Yuichi GODA, Nobuhiro SUZUKI
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Patent number: 10961607Abstract: A hardfacing alloy satisfies the following condition when the hardfacing alloy as a whole is 100 mass % (also simply referred to as “%,” hereinafter), Ni: 10-25%, Si: 1-3%, Fe: 3-18%, the total of one or more elements of Mo, W, and Nb: 6.5-20%, and the balance: Cu and impurities. In particular, it preferably satisfies Fe+2Mo?22.6(%), Mo equivalent/Fe?1.17, and Mo equivalent=Mo+0.522W+1.033Nb. In a hardfacing part composed of the hardfacing alloy, coarse hard particles are formed to ensure the wear resistance, and a soft phase present in the hard particles ensures the machinability. This may be understood as a raw material powder for hardfacing treatment and may also be understood as a hardfacing member in which a hardfacing part is formed on a base material using the raw material powder.Type: GrantFiled: October 10, 2018Date of Patent: March 30, 2021Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tadashi Oshima, Hajime Kato, Kouji Tanaka, Takashi Saito, Natsuki Sugiyama, Minoru Kawasaki, Jun Nomasaki, Hisao Fukuhara, Naoyuki Miyara, Hironori Aoyama
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Publication number: 20210033695Abstract: Provided is a displacement measurement device including: a radio wave transmitter installed at a measurement position, which is configured to transmit radio waves of a plurality of frequencies from a transmission antenna; and a radio wave receiver installed at a fixed position. The radio wave transmitter includes: a plurality of reception antennas each configured to output received signals indicating the results of receiving the radio waves of the plurality of frequencies; a relative phase combining unit configured to combine, for the plurality of frequencies, relative phases between the plurality of reception antennas; a relative phase shifting unit configured to shift the relative phase between the plurality of frequencies, which is combined by the relative phase combining unit; and a positioning calculation unit configured to calculate the positioning value of the transmission antenna based on the relative phase shifted by the relative phase shifting unit.Type: ApplicationFiled: October 16, 2020Publication date: February 4, 2021Applicant: Mitsubishi Electric CorporationInventors: Tsubasa TERADA, Tadashi OSHIMA, Takeshi AMISHIMA, Nobuhiro SUZUKI
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Patent number: 10724482Abstract: An air cleaner of a vehicle for filtering particulate matter from air supplied through an intake includes a case with an outlet. The case surrounds the air cleaner, which further includes two connecting tubes each having a first end disposed through the outlet and a second end located in the case. A funnel is clamped to the second end of each of the connecting tubes. A bracket is attached to each of the funnels for rigidly mounting the funnels inside the case of the air cleaner. The first end of each of the connecting tubes is further connected to the throttle body of the vehicle to provide clean air from the air cleaner to the engine.Type: GrantFiled: February 5, 2018Date of Patent: July 28, 2020Assignee: Honda Motor Co., Ltd.Inventors: Russell A. Diehl, Tadashi Oshima
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Publication number: 20190276916Abstract: A copper-based alloy which includes Cu, Ni, Si, Fe, and Mg, and at least one selected from the group consisting of Mo, W and V, and in which a content of Mg is 0.02 mass % or more.Type: ApplicationFiled: March 5, 2019Publication date: September 12, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Minoru KAWASAKI, Natsuki SUGIYAMA, Hisao FUKUHARA, Tadashi OSHIMA, Hajime KATO, Kouji TANAKA, Takashi SAITO
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Publication number: 20190242334Abstract: An air cleaner of a vehicle for filtering particulate matter from air supplied through an intake includes a case with an outlet. The case surrounds the air cleaner, which further includes two connecting tubes each having a first end disposed through the outlet and a second end located in the case. A funnel is clamped to the second end of each of the connecting tubes. A bracket is attached to each of the funnels for rigidly mounting the funnels inside the case of the air cleaner. The first end of each of the connecting tubes is further connected to the throttle body of the vehicle to provide clean air from the air cleaner to the engine.Type: ApplicationFiled: February 5, 2018Publication date: August 8, 2019Inventors: Russell A. DIEHL, Tadashi OSHIMA
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Publication number: 20190242335Abstract: An air cleaner of a vehicle for filtering particulate matter from air supplied through an intake includes a case with an outlet. The case surrounds the air cleaner, which further includes two connecting tubes each having a first end attached to the throttle body of the vehicle and a second end disposed in the outlet in the case of the air cleaner. A funnel is inserted into the second end of each of the connecting tubes. Clean air from the air cleaner is proved to the engine through the connecting tubes.Type: ApplicationFiled: February 5, 2018Publication date: August 8, 2019Inventors: Russell A. DIEHL, Zeile A. KLAISS, Tadashi OSHIMA
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Publication number: 20190136346Abstract: A hardfacing alloy satisfies the following condition when the hardfacing alloy as a whole is 100 mass % (also simply referred to as “%,” hereinafter), Ni: 10-25%, Si: 1-3%, Fe: 3-18%, the total of one or more elements of Mo, W, and Nb: 6.5-20%, and the balance: Cu and impurities. In particular, it preferably satisfies Fe+2Mo?22.6(%), Mo equivalent/Fe?1.17, and Mo equivalent=Mo+0.522W+1.033Nb. In a hardfacing part composed of the hardfacing alloy, coarse hard particles are formed to ensure the wear resistance, and a soft phase present in the hard particles ensures the machinability. This may be understood as a raw material powder for hardfacing treatment and may also be understood as a hardfacing member in which a hardfacing part is formed on a base material using the raw material powder.Type: ApplicationFiled: October 10, 2018Publication date: May 9, 2019Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tadashi OSHIMA, Hajime KATO, Kouji TANAKA, Takashi SAITO, Natsuki SUGIYAMA, Minoru KAWASAKI, Jun NOMASAKI, Hisao FUKUHARA, Naoyuki MIYARA, Hironori AOYAMA
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Patent number: 10167533Abstract: A wear-resistant copper-based alloy includes: at least one selected from the group made of molybdenum, tungsten, and vanadium and niobium carbide; chromium in an amount of less than 1.0% in terms of wt %; and a matrix and hard particles dispersed in the matrix, in which the hard particles include niobium carbide and at least one selected from the group made of Nb—C—Mo, Nb—C—W, and Nb—C—V around the niobium carbide.Type: GrantFiled: August 8, 2016Date of Patent: January 1, 2019Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Minoru Kawasaki, Nobuyuki Shinohara, Takehisa Fujita, Hironori Aoyama, Yasuhiro Yamamoto, Tadashi Oshima, Hajime Kato, Kouji Tanaka, Takashi Saito
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Patent number: 9983294Abstract: A stationary object decision processing unit 14 decides whether range R and Doppler frequency fd corresponding to peaks detected by the peak detection processing unit 13 satisfy geometric positional relationships between a radar and a stationary object. If they satisfy the geometric positional relationships, it recognizes that the object associated with the peaks is a stationary object. Thus, even if the number of peaks detected by the peak detection processing unit 13 increases, it can accurately decide whether the object associated with the peaks is a stationary object or not with a small amount of calculation.Type: GrantFiled: February 1, 2013Date of Patent: May 29, 2018Assignee: Mitsubishi Electric CorporationInventors: Tadashi Oshima, Teruyuki Hara, Kentarou Isoda, Masashi Mitsumoto
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Patent number: 9821406Abstract: A jointed body that has been solid-phase jointed at normal temperature and that has a non-conventional structure is presented. The jointed body is formed by solid-phase joining a first jointed member to a second jointed member, and has a junction interface between the first member and the second member. This jointed body includes an average crystal grain size in a near interface structure that constitutes a near interface area having a total width of 20 micrometers and extending at both sides of the junction interface as a center is 75-100% of an average crystal grain size in an around interface structure that constitutes around interface areas located at both outer sides of the near interface area. In the jointed body, the near interface structure after the joining is almost the same as the structure before the joining, allowing the jointed body to exert similar characteristics to the jointed members.Type: GrantFiled: March 1, 2013Date of Patent: November 21, 2017Assignee: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Tadashi Oshima, Hisaaki Takao, Hirofumi Ito
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Patent number: 9716557Abstract: A calibration device includes reference signal normalizing units 5-1 to 5-M that set, as a reference signal, a frequency domain signal being associated with either one 2 of reception antennas and being included in frequency domain signals obtained by conversions made by Fourier transform units 4-1 to 4-M, and divide the frequency domain signals after the conversion made by the Fourier transform units 4-1 to 4-M by the reference signal, thereby normalizing the frequency domain signals, and reference frequency normalizing units 6-1 to 6-M that normalize the frequency domain signals normalized by the reference signal normalizing units 5-1 to 5-M by using a signal having a reference frequency included in the frequency domain signals.Type: GrantFiled: May 12, 2014Date of Patent: July 25, 2017Assignee: Mitsubishi Electric CorporationInventors: Tadashi Oshima, Toshio Wakayama
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Patent number: 9573465Abstract: A transmission includes a drive force transmission/interruption mechanism that restricts the rotation of a propeller shaft. By operating a shift lever, the shift operation of the transmission and the operation of the drive force transmission/interruption mechanism can be performed, and a lock operation and an unlock operation of a differential lock mechanism can be performed. When a driver wants to bring a vehicle into a parking state, by operating a shift lever, a state is provided where a drive force transmission/interruption mechanism is locked so that the rotation of a propeller shaft is restricted, and the vehicle can be held in a stopped state by bringing a differential lock mechanism into a locked state. Since the vehicle can be brought into a parking state using the shift lever, a so-called parking lever becomes unnecessary so that the number of operation elements can be reduced.Type: GrantFiled: March 17, 2014Date of Patent: February 21, 2017Assignee: HONDA MOTOR CO., LTD.Inventors: Tomohiro Nishida, Tadashi Oshima, Nobutaka Ban
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Publication number: 20170037495Abstract: A wear-resistant copper-based alloy includes: at least one selected from the group made of molybdenum, tungsten, and vanadium and niobium carbide; chromium in an amount of less than 1.0% in terms of wt %; and a matrix and hard particles dispersed in the matrix, in which the hard particles include niobium carbide and at least one selected from the group made of Nb—C—Mo, Nb—C—W, and Nb—C—V around the niobium carbide.Type: ApplicationFiled: August 8, 2016Publication date: February 9, 2017Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Minoru KAWASAKI, Nobuyuki SHINOHARA, Takehisa FUJITA, Hironori AOYAMA, Yasuhiro YAMAMOTO, Tadashi OSHIMA, Hajime KATO, Kouji TANAKA, Takashi SAITO
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Publication number: 20170033876Abstract: A calibration device includes reference signal normalizing units 5-1 to 5-M that set, as a reference signal, a frequency domain signal being associated with either one 2 of reception antennas and being included in frequency domain signals obtained by conversions made by Fourier transform units 4-1 to 4-M, and divide the frequency domain signals after the conversion made by the Fourier transform units 4-1 to 4-M by the reference signal, thereby normalizing the frequency domain signals, and reference frequency normalizing units 6-1 to 6-M that normalize the frequency domain signals normalized by the reference signal normalizing units 5-1 to 5-M by using a signal having a reference frequency included in the frequency domain signals.Type: ApplicationFiled: May 12, 2014Publication date: February 2, 2017Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Tadashi OSHIMA, Toshio WAKAYAMA