Patents by Inventor Shiro Yamashita
Shiro Yamashita 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: 11771068Abstract: Disclosed is a novel means which makes it possible to steadily mass-produce knockout individuals even in large animals. The method of the present invention is a method for producing a non-human large mammal or fish (non-human animal) that produces gametes originating in a different individual, and comprises transplanting at least one pluripotent cell derived from a second non-human animal into an embryo derived from a first non-human animal, said embryo being at a cleavage stage and having a genome in which a function of nanos3 gene is inhibited, to prepare a chimeric embryo, and allowing said chimeric embryo to develop into an individual.Type: GrantFiled: April 6, 2016Date of Patent: October 3, 2023Assignee: NATIONAL FEDERATION OF AGRICULTURAL COOPERATIVE ASSOCIATIONSInventors: Atsushi Ideta, Masato Konishi, Yutaka Sendai, Shiro Yamashita, Ryosaku Yamaguchi, Marie Soma
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Publication number: 20220295642Abstract: An electronic control device includes: a circuit board; an electronic component; and a bonding portion bonding the circuit board and the electronic component to each other. The bonding portion contains Sn as a main component, Bi and Sb in a total content ratio of 3 wt % or more, and Ag in a content of 3 to 3.9 wt %, with no In.Type: ApplicationFiled: May 11, 2020Publication date: September 15, 2022Inventors: Osamu IKEDA, Shiro YAMASHITA
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Publication number: 20220271453Abstract: A circuit board including a through-hole into which a press-fit terminal portion is inserted in a depth direction; an inner wall land provided on an inner wall of the through-hole; and a plurality of inner layer lands which are provided in an inner layer of the circuit board, are planes substantially parallel to a mounting surface of the circuit board, and are in contact with the inner wall land. The inner wall land has a first region that is in contact with the press-fit terminal portion and a second region that is not in contact with the press-fit terminal portion. Among the plurality of inner layer lands, a first inner layer land, which is an inner layer land disposed on an identical surface with the first region of the inner wall land, is wider than a second inner layer land which is an inner layer land disposed on an identical surface with the second region of the inner wall land.Type: ApplicationFiled: June 5, 2020Publication date: August 25, 2022Inventors: Shinya KAWAKITA, Shiro YAMASHITA, Toshikazu SHIGYO
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Patent number: 11266044Abstract: An electronic control device includes a heating element, a substrate, and a housing. The heating element includes an electronic component. The heating element is mounted to the substrate. The substrate is fixed to the housing via a substrate fixing portion. The housing includes a plurality of projecting portions projecting to the substrate side from a reference surface. The plurality of projecting portions have mutually different heights from the reference surface. The reference surface is a surface opposing the substrate and a reference of a height of the housing. The projecting portion highest in the height from the reference surface among the plurality of projecting portions is in contact with a surface of the substrate via a heat dissipation member. The surface of the substrate is on an opposite side of a surface where the heating element is mounted.Type: GrantFiled: October 12, 2018Date of Patent: March 1, 2022Assignee: Hitachi Astemo, Ltd.Inventors: Isamu Yoshida, Masaru Kamoshida, Toshikazu Shigyo, Shiro Yamashita
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Publication number: 20200352056Abstract: An electronic control device includes a heating element, a substrate, and a housing. The heating element includes an electronic component. The heating element is mounted to the substrate. The substrate is fixed to the housing via a substrate fixing portion. The housing includes a plurality of projecting portions projecting to the substrate side from a reference surface. The plurality of projecting portions have mutually different heights from the reference surface. The reference surface is a surface opposing the substrate and a reference of a height of the housing. The projecting portion highest in the height from the reference surface among the plurality of projecting portions is in contact with a surface of the substrate via a heat dissipation member. The surface of the substrate is on an opposite side of a surface where the heating element is mounted.Type: ApplicationFiled: October 12, 2018Publication date: November 5, 2020Inventors: Isamu YOSHIDA, Masaru KAMOSHIDA, Toshikazu SHIGYO, Shiro YAMASHITA
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Patent number: 10154589Abstract: The objective of the present invention is to improve reliability in a solder connection portion between an electronic component and a wiring pattern. A pair of wiring patterns (31A and 31B) are formed on a circuit wiring board (30) with an insulation layer (37) therebetween. Each wiring pattern (31A and 31B) has a land (33a or 33b) and a wiring portion (34a or 34b) that is narrower than the land. By way of solder (42), a chip component (41) is soldered to the lands (33a and 33b). The x (width) direction center (Xa) of each connection portion (53) where a respective wiring portion (34a or 34b) is connected to a respective land (33a or 33b) is disposed at a position that is outside of both the region in which a region of predetermined width (Wc) of the chip component (41) extends in the x (longitudinal) direction, and the region in which a region of predetermined length (Lc) of the chip component (41) extends in a y (transverse) direction.Type: GrantFiled: April 23, 2014Date of Patent: December 11, 2018Assignee: Hitachi Automotive Systems, Ltd.Inventors: Miki Hiraoka, Shiro Yamashita, Tomishige Yatsugi
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Publication number: 20180116191Abstract: Disclosed is a novel means which makes it possible to steadily mass-produce knockout individuals even in large animals. The method of the present invention is a method for producing a non-human large mammal or fish (non-human animal) that produces gametes originating in a different individual, and comprises transplanting at least one pluripotent cell derived from a second non-human animal into an embryo derived from a first non-human animal, said embryo being at a cleavage stage and having a genome in which a function of nanos3 gene is inhibited, to prepare a chimeric embryo, and allowing said chimeric embryo to develop into an individual. When a pluripotent cell having a genome in which a desired gene is knocked out is used as the pluripotent cell derived from the second non-human animal, the first non-human animal capable of producing germ cells in which the desired gene is knocked out is obtained, and therefore knockout non-human animals can easily be mass-produced by mating such non-human animals.Type: ApplicationFiled: April 6, 2016Publication date: May 3, 2018Applicant: National Federation of Agricultural Cooperative AssociationsInventors: Atsushi IDETA, Masato KONISHI, Yutaka SENDAI, Shiro YAMASHITA, Ryosaku YAMAGUCHI, Marie SOMA
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Patent number: 9960147Abstract: A power module includes a base plate, first, second, and third semiconductor chips. At least one of a third edge or fourth edge of the first semiconductor chip is disposed adjacent to a side end of the base plate. Among a half of a distance from a first edge of the first semiconductor chip to one edge of the second semiconductor chip, a half of a distance from a second edge of the first semiconductor chip to one edge of the third semiconductor chip, and a distance from the third edge or fourth edge of the first semiconductor chip disposed adjacent to the side end of the base plate to the side end of the base plate, a length of a solder fillet formed on the edge of the first semiconductor chip at the shortest distance is formed in the shortest length.Type: GrantFiled: December 10, 2015Date of Patent: May 1, 2018Assignee: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Shiro Yamashita, Yusuke Takagi, Takahiro Shimura
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Publication number: 20180005986Abstract: A power module includes a base plate, first, second, and third semiconductor chips. At least one of a third edge or fourth edge of the first semiconductor chip is disposed adjacent to a side end of the base plate. Among a half of a distance from a first edge of the first semiconductor chip to one edge of the second semiconductor chip, a half of a distance from a second edge of the first semiconductor chip to one edge of the third semiconductor chip, and a distance from the third edge or fourth edge of the first semiconductor chip disposed adjacent to the side end of the base plate to the side end of the base plate, a length of a solder fillet formed on the edge of the first semiconductor chip at the shortest distance is formed in the shortest length.Type: ApplicationFiled: December 10, 2015Publication date: January 4, 2018Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventors: Shiro YAMASHITA, Yusuke TAKAGI, Takahiro SHIMURA
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Patent number: 9530722Abstract: The present invention relates to a power module obtained by connecting the opposite sides of a chip with solder, and prevents the side surfaces of a base portion from becoming wet with solder, which would otherwise cause connection failures of the solder or chip displacement, and also prevents peeling of molding resin, which would otherwise break the chip or shorten the life of the solder. The base portion is integrally formed with one of lead frames, and the side surfaces of the base portion and the surface of the main body of the lead frame are roughened so as to have reduced solder wettability. Meanwhile, the solder connection surface of the base portion is not roughened so as to ensure the solder wettability. Accordingly, it is possible to reduce failures that may occur during solder connection and obtain a highly reliable power module (FIG. 5).Type: GrantFiled: September 4, 2013Date of Patent: December 27, 2016Assignee: Hitachi Automotive Systems, Ltd.Inventors: Shiro Yamashita, Hideto Yoshinari, Takashi Kume, Shinichi Fujino, Eiichi Ide
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Patent number: 9306020Abstract: A power module includes a semiconductor device having at least one electrode surface on each side thereof, a first conductive member connected to the electrode surface provided on one side of the semiconductor device with solder, and a second conductive member connected to the electrode surface provided on the other side of the semiconductor device with solder, with at least one of the electrode surfaces provided on the one side of the semiconductor device being double comb-shaped.Type: GrantFiled: June 28, 2012Date of Patent: April 5, 2016Assignee: Hitachi Automotive Systems, Ltd.Inventors: Shinichi Fujino, Hideto Yoshinari, Shiro Yamashita
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Publication number: 20160073504Abstract: The objective of the present invention is to improve reliability in a solder connection portion between an electronic component and a wiring pattern. A pair of wiring patterns (31A and 31B) are formed on a circuit wiring board (30) with an insulation layer (37) therebetween. Each wiring pattern (31A and 31B) has a land (33a or 33b) and a wiring portion (34a or 34b) that is narrower than the land. By way of solder (42), a chip component (41) is soldered to the lands (33a and 33b). The x (width) direction center (Xa) of each connection portion (53) where a respective wiring portion (34a or 34b) is connected to a respective land (33a or 33b) is disposed at a position that is outside of both the region in which a region of predetermined width (Wc) of the chip component (41) extends in the x (longitudinal) direction, and the region in which a region of predetermined length (Lc) of the chip component (41) extends in a y (transverse) direction.Type: ApplicationFiled: April 23, 2014Publication date: March 10, 2016Inventors: Miki HIRAOKA, Shiro YAMASHITA, Tomishige YATSUGI
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Publication number: 20150294927Abstract: The present invention relates to a power module obtained by connecting the opposite sides of a chip with solder, and prevents the side surfaces of a base portion from becoming wet with solder, which would otherwise cause connection failures of the solder or chip displacement, and also prevents peeling of molding resin, which would otherwise break the chip or shorten the life of the solder. The base portion is integrally formed with one of lead frames, and the side surfaces of the base portion and the surface of the main body of the lead frame are roughened so as to have reduced solder wettability. Meanwhile, the solder connection surface of the base portion is not roughened so as to ensure the solder wettability. Accordingly, it is possible to reduce failures that may occur during solder connection and obtain a highly reliable power module.Type: ApplicationFiled: September 4, 2013Publication date: October 15, 2015Inventors: Shiro Yamashita, Hideto Yoshinari, Takashi Kume, Shinichi Fujino, Eiichi Ide
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Publication number: 20140296714Abstract: With an ultrasonograph, medical information of a heart could not be accurately obtained as the cardiac apex of the heart could not be recorded clearly. A biomedical information measuring device capable of obtaining accurate medical information is created by measuring an apexcardiogram in M-mode using a linear probe, and improving a data processing device so as to establish an algorithm useful in accurate evaluation so as to solve the above problem.Type: ApplicationFiled: May 31, 2012Publication date: October 2, 2014Inventors: Shigehiro Kuroki, Shiro Yamashita
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Patent number: 8796563Abstract: In ultrasonic bonding of a metal terminal to a substrate pad, a thin buffer metal layer which is formed of a soft metal or a highly slidable metal is interposed between a terminal edge and a pad so as to prevent direct contact between an end of the terminal and the pad upon bonding. This makes it possible to prevent abrasion and a crack in the pad at the end of the terminal caused by pressure and an ultrasonic wave upon the ultrasonic bonding. This makes it possible to realize a compact bonded structure with high reliability.Type: GrantFiled: January 29, 2010Date of Patent: August 5, 2014Assignee: Hitachi Automotive Systems, Ltd.Inventors: Ukyo Ikeda, Masato Nakamura, Shiro Yamashita
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Publication number: 20140110752Abstract: A power module includes a semiconductor device having at least one electrode surface on each side thereof, a first conductive member connected to the electrode surface provided on one side of the semiconductor device with solder, and a second conductive member connected to the electrode surface provided on the other side of the semiconductor device with solder, with at least one of the electrode surfaces provided on the one side of the semiconductor device being double comb-shaped.Type: ApplicationFiled: June 28, 2012Publication date: April 24, 2014Applicant: Hitachi Automotive Systems, Ltd.Inventors: Shinichi Fujino, Hideto Yoshinari, Shiro Yamashita
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Publication number: 20130324848Abstract: Though mechanocardiogram is considered to have a high medical value, mechanocardiogram recording device is large in size and very expensive, obtained data lacks reliability, a measurement algorithm has not been settled, use of an apexcardiogram for diagnosis is not useful for diagnosis of the circulatory system, and there has been no measuring equipment capable of measuring pexcardiogram which contribute to determination of heal condition of a living body to be measured. For measurement of heartbeat of a living body, measuring device which allows simple measurement of apexcardiogram at bedside has been developed using a pressure sensor and/or wave sensor capable of measuring change in pressure at multiple portions adjacent to one another, and simple electronic circuit.Type: ApplicationFiled: November 22, 2010Publication date: December 5, 2013Inventors: Shigehiro Kuroki, Shiro Yamashita
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Publication number: 20110058342Abstract: An object of the present invention is to provide a semiconductor device having a small-sized, thin, and high heat-dissipating multilayer frame mounting structure. To achieve the object, the invention provides a semiconductor device having a multilayer frame obtained by stacking a plurality of lead frames on which electronic parts are mounted and sealing the stack with a resin. An interlayer distance between a lead frame on which an electronic part is mounted and a lead frame which is stacked above the lead frame and on which an electronic part is mounted is shorter than a distance from a face of the lead frame to a top face of the electronic part.Type: ApplicationFiled: August 25, 2010Publication date: March 10, 2011Applicant: Hitachi, Ltd.Inventors: Shinya Kawakita, Shiro Yamashita, Ukyo Ikeda, Takuto Yamaguchi
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Patent number: 7883378Abstract: In a module, press-fit connection using a pin terminal including a connection part separated into two parts and a flat plane parallel to the lengthwise direction in the separation part and perpendicular to the separation direction of the pin terminal is performed. A through-hole of a board is structured so that an inner diameter of the through-hole at a middle part in the thickness direction of the board is smaller than that at obverse and reverse surfaces of the board and the length of the middle part of the through-hole connected to the pin terminal is shorter than the length of the flat plane of the pin terminal.Type: GrantFiled: October 16, 2008Date of Patent: February 8, 2011Assignee: Hitachi, Ltd.Inventors: Shiro Yamashita, Hideto Yoshinari
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Publication number: 20100206632Abstract: In ultrasonic bonding of a metal terminal to a substrate pad, a thin buffer metal layer which is formed of a soft metal or a highly slidable metal is interposed between a terminal edge and a pad so as to prevent direct contact between an end of the terminal and the pad upon bonding. This makes it possible to prevent abrasion and a crack in the pad at the end of the terminal caused by pressure and an ultrasonic wave upon the ultrasonic bonding. This makes it possible to realize a compact bonded structure with high reliability.Type: ApplicationFiled: January 29, 2010Publication date: August 19, 2010Applicant: Hitachi Automotive Systems, Ltd.Inventors: Ukyo IKEDA, Masato NAKAMURA, Shiro YAMASHITA