Patents by Inventor Tomohisa Harada
Tomohisa Harada 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: 20230087721Abstract: A partial structure of a battery pack includes: a battery group which is formed by stacking a plurality of layers, each of the layers being formed by arranging cylindrical batteries in parallel in a plane, the cylindrical batteries belonging to adjacent layers being arranged by shifting alignment pitches by a half pitch from each other between the adjacent layers; heat transfer plates, wherein each of the heat transfer plates is in contact with side surfaces of the cylindrical batteries arranged on both surfaces of each of the heat transfer plates, is formed by a heat transfer corrugated plate member, and extends through a gap between the cylindrical batteries along an alignment direction of the cylindrical batteries in the layers in the plane intersecting center axis lines of the cylindrical batteries, a first intersection direction intersecting the alignment direction or a second intersection direction intersecting the alignment direction and the first intersection direction; and a radiator which is arrangeType: ApplicationFiled: February 26, 2021Publication date: March 23, 2023Inventors: Takafumi OYAKE, Masanori ISHIGAKI, Tomohisa HARADA, Makoto KUSAKABE, Kosuke KUSABA, Satoshi YOSHIDA, Kohei FUJII
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Publication number: 20180079036Abstract: A solder material includes 25 to 45 mass % of Sn, 30 to 40 mass % of Sb, 3 to 8 mass % of Cu, 25 mass % or less of Ag, and 1.3 to 6 mass % of In.Type: ApplicationFiled: September 19, 2017Publication date: March 22, 2018Applicant: NIHON DEMPA KOGYO CO., LTD.Inventors: Toshimasa TSUDA, Daisuke NISHIYAMA, Makoto HATANO, Kei OZAKI, Tomohisa HARADA
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Patent number: 7035348Abstract: A receiver configured to receive a plurality of signals k (k=1, 2, . . . , M) allocated in a first frequency band. The receiver includes a frequency conversion section for reallocating the signals k in a second frequency band for sampling by a single AD converter at a sampling frequency fs such that digital data of the sampled signals k are obtained in a third frequency band extending from zero Hz to a frequency represented by fs/2; and a signal extraction section for extracting a target base band signal k from the digital data obtained by the AD conversion section. The frequency conversion section performs the reallocation in such a manner that at least a frequency represented by Jfs/2 (J is an integer) is located between the frequencies of at least two of the signals k and that the sampled signals do not overlap.Type: GrantFiled: May 24, 2002Date of Patent: April 25, 2006Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Noriyoshi Suzuki, Tomohisa Harada, Tsutayuki Shibata, Hisanori Uda, Hiroaki Hayashi, Nobuo Itoh
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Publication number: 20030128774Abstract: A receiver apparatus receives substantially concurrently a plurality of signals k (k=1, 2, . . . , M) that have been transmitted while being allocated in a broad, first frequency band. The receiver apparatus includes a frequency conversion section for reallocating the signals k in a second frequency band within which the signals k can be sampled by a single AD converter; an AD conversion section for sampling the signals k having being reallocated into the second frequency band at a sampling frequency fs such that digital data of the sampled signals k are obtained in a third frequency band extending from zero Hz to a frequency represented by fs/2; and a signal extraction section for extracting a target base band signal k from the digital data obtained through the sampling by the AD conversion section.Type: ApplicationFiled: May 24, 2002Publication date: July 10, 2003Applicant: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHOInventors: Noriyoshi Suzuki, Tomohisa Harada, Tsutayuki Shibata, Hisanori Uda, Hiroaki Hayashi, Nobuo Itoh
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Patent number: 6288672Abstract: High-frequency signals from an oscillator (10) are transmitted, through a power divider (12) and a switch (14), from transmission antennas (T1, T2, T3). Reflection waves reflected by targets are received by reception antennas (R1, R2) to thereafter be fed via a switch (16) to a mixer (18). The mixer (18) is supplied with transmission high-frequency signals from the power divider (12) to retrieve beat-signal components therefrom, which in turn are converted into digital signals for the processing in a signal processing circuit 22. The transmission antennas (T1 to T3) and the reception antennas (R1, R2) are switched in sequence whereby it is possible to acquire signals equivalent to ones obtained in radars having a single transmission antenna and six reception antennas.Type: GrantFiled: September 13, 1999Date of Patent: September 11, 2001Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Yoshikazu Asano, Tomohisa Harada
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Patent number: 6052084Abstract: A vehicle-mounted satellite signal receiving system adopting a satellite tracking system combining gyro tracking and hybrid tracking is disclosed which can correct a sensitivity coefficient for correcting a gyro sensor output signal to make up for a sensitivity error, even when a drift is produced in the sensitivity error. In this system, gyro tracking is caused when the received power level is above a threshold power level. The gyro tracking is done by determining the angular velocity .omega. of an antenna as .omega.=-(.omega.G.times..DELTA.SB+.omega.G from a value obtained by inverting the sign of the product of a gyro tracking angular velocity .omega.G and a sensitivity coefficient .DELTA.SB for dealing with the sensitivity error and a predetermined offset error correction value .omega.G and setting the antenna to .omega.. When .DELTA.SB is inaccurate and a sensitivity error is generated in the gyro sensor output signal, the received power level is reduced.Type: GrantFiled: May 28, 1997Date of Patent: April 18, 2000Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shigeki Aoshima, Tomohisa Harada
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Patent number: 6034643Abstract: A directional beam antenna device includes: an antenna supporting member which is supported on a base in such a manner as to be rotatable about a first rotational axis; an antenna portion which is supported on the antenna supporting member in such a manner as to be rotatable about a second rotational axis which is perpendicular to an antenna aperture and is inclined at a first angle with respect to the first rotational axis, the direction of an antenna beam being inclined at a second angle with respect to the second rotational axis; a first driving unit for rotating the antenna supporting member about the first rotational axis with respect to the base; and a second driving unit for rotating the antenna portion about the second rotational axis with respect to the antenna supporting member.Type: GrantFiled: March 23, 1998Date of Patent: March 7, 2000Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kunitoshi Nishikawa, Tomohisa Harada, Toshiaki Watanabe, Masaru Ogawa, Eiji Teramoto
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Patent number: 5900836Abstract: A control portion performs gyro control at control intervals of .DELTA.t, by using -.omega.G, which is obtained by inverting the polarity of an angular rate .omega.G outputted from an angular rate sensor portion. On the other hand, a receiving level is detected at constant control intervals of .DELTA.T (=M.DELTA.t: M is an integer). The rotation of an antenna portion is controlled by using .omega.s, if the receiving level has increased, or by using -.omega.s, if the receiving level has decreased, i.e. by step track control. By accumulating the control amount .+-..omega.s for a predetermined long time period of N.DELTA.T, accumulation of an error contained in each angular rate .omega.G is obtained. The accumulated value is then divided by N to calculate an error .DELTA..omega.G contained in .omega.G. This error .DELTA..omega.G is used to compensate the actual error, so that the gyro control can be made more accurate.Type: GrantFiled: March 27, 1996Date of Patent: May 4, 1999Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kunitoshi Nishikawa, Tomohisa Harada, Toshiaki Watanabe, Masaru Ogawa
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Patent number: 5828337Abstract: In a vehicle mounted satellite signal receiving apparatus which adopts a satellite tracking system combining a gyro tracking with a hybrid tracking, there is provided a device which can revise an offset error correction value of a gyro sensor, even if there is a drift in the offset error. In this device, gyro tracking is performed when a reception level is a threshold value L.sub.C or more. The gyro tracking is performed by setting an antenna at an angular velocity .omega., which is derived from an equation,.omega.=-.omega.G+.DELTA..omega.G, where -.omega.G is a value resulted from conversion of sign for gyro angular velocity .omega.G, and .DELTA..omega.G is a prescribed offset error correction value. A reception level declines if the offset error correction value .DELTA..omega.G deviates and therefore an apparent offset error arises in the gyro sensor. When the reception level declines below a threshold value L.sub.B, the aforementioned offset error correction value .DELTA..omega.Type: GrantFiled: May 22, 1997Date of Patent: October 27, 1998Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shigeki Aoshima, Tomohisa Harada
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Patent number: 5675346Abstract: In an annular microstrip antenna element, an annular radiant conductor plate is mounted on a ground conductor plate via a dielectric layer. A coaxial transmission line is provided, whose external conductor is connected to the ground conductor plate, and whose central conductor is connected to the radiant conductor plate, via a feeding point, with a pair of microstrip lines. The pair of microstrip lines extend from the feeding point to two connecting points on the radiant conductor plate, forming an angle between them like a V shape. By varying the angle, it is possible to adjust the input impedance of the annular microstrip antenna element at the feeding point, so that impedance matching with the coaxial transmission line is achieved. In a radial line antenna system comprising a plurality of the antenna elements, the antenna elements are mounted on concentric circles with a constant space between the adjacent antenna elements, thereby reducing undesirable electromagnetic coupling.Type: GrantFiled: March 20, 1996Date of Patent: October 7, 1997Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventors: Kunitoshi Nishikawa, Toshiaki Watanabe, Masaru Ogawa, Tomohisa Harada