Patents by Inventor Yasuhiro Koyama
Yasuhiro Koyama 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: 10848897Abstract: An acoustic processing device performs acoustic processing in a space having a first listening position and a second listening position apart from the first listening position. The acoustic processing device includes a first input unit, a first output unit, and a signal processing circuit. The first input unit receives a first sound source signal to be reproduced at the first listening position. The first sound source signal includes a first left-channel signal and a first right-channel signal. The first output unit outputs the first sound source signal to a first speaker group including a first speaker disposed near a place of a head of a listener at the first listening position. The signal processing circuit draws out a first common signal common to both the first left-channel signal and the first right-channel signal and outputs the first common signal to the first speaker.Type: GrantFiled: September 20, 2019Date of Patent: November 24, 2020Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yasuhiro Koyama, Takashi Nakanishi, Hiroshi Tsukamoto
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Patent number: 10704559Abstract: A vertical pump includes: a rotary shaft; multi-stage impellers; a casing accommodating the multi-stage impellers; a mechanical seal provided in a penetration part of the casing for the rotary shaft; a balance sleeve, the balance sleeve being positioned between a final stage impeller of the multi-stage impellers and the mechanical seal in the penetration part for the rotary shaft; an intermediate chamber provided between the rotary shaft and the casing and provided on an opposite side of the multi-stage impellers across the balance sleeve in an axial direction of the rotary shaft, the intermediate chamber communicating with an intermediate stage impeller among the multi-stage impellers; a low pressure chamber provided between the rotary shaft and the casing, the low pressure chamber communicating with a low pressure side compared to the intermediate chamber; and a partition wall part dividing the intermediate chamber and the low pressure chamber.Type: GrantFiled: November 9, 2017Date of Patent: July 7, 2020Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiroshi Funakoshi, Yasushi Ueda, Akio Maeda, Yasuhiro Koyama, Hidetoshi Fukuta, Masahide Ikunami
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Publication number: 20200015029Abstract: An acoustic processing device performs acoustic processing in a space having a first listening position and a second listening position apart from the first listening position. The acoustic processing device includes a first input unit, a first output unit, and a signal processing circuit. The first input unit receives a first sound source signal to be reproduced at the first listening position. The first sound source signal includes a first left-channel signal and a first right-channel signal. The first output unit outputs the first sound source signal to a first speaker group including a first speaker disposed near a place of a head of a listener at the first listening position. The signal processing circuit draws out a first common signal common to both the first left-channel signal and the first right-channel signal and outputs the first common signal to the first speaker.Type: ApplicationFiled: September 20, 2019Publication date: January 9, 2020Inventors: YASUHIRO KOYAMA, TAKASHI NAKANISHI, HIROSHI TSUKAMOTO
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Publication number: 20190211833Abstract: A vertical pump includes: a rotary shaft; multi-stage impellers; a casing accommodating the multi-stage impellers; a mechanical seal provided in a penetration part of the casing for the rotary shaft; a balance sleeve, the balance sleeve being positioned between a final stage impeller of the multi-stage impellers and the mechanical seal in the penetration part for the rotary shaft; an intermediate chamber provided between the rotary shaft and the casing and provided on an opposite side of the multi-stage impellers across the balance sleeve in an axial direction of the rotary shaft, the intermediate chamber communicating with an intermediate stage impeller among the multi-stage impellers; a low pressure chamber provided between the rotary shaft and the casing, the low pressure chamber communicating with a low pressure side compared to the intermediate chamber; and a partition wall part dividing the intermediate chamber and the low pressure chamber.Type: ApplicationFiled: November 9, 2017Publication date: July 11, 2019Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiroshi Funakoshi, Yasushi Ueda, Akio Maeda, Yasuhiro Koyama, Hidetoshi Fukuta, Masahide Ikunami
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Patent number: 9757882Abstract: A method of producing an opened fiber bundle is in a space-saving manner. The method of continuously producing an opened fiber bundle for a cleaning member, includes the steps of (a1) providing (i) first nip rolls, (ii) second nip rolls, (iii) third nip rolls, and (iv) an air feeder; (a2) conveying a fiber bundle using the first nip rolls and the second nip rolls to apply a tensile force to the fiber bundle; (a3) conveying the fiber bundle using the second nip rolls and the third nip rolls to relax the fiber bundle, thereby forming a belt-shaped fiber bundle; and (a4) blowing air from the air feeder in a direction intersecting with the conveying direction of the first belt-shaped fiber bundle.Type: GrantFiled: January 25, 2013Date of Patent: September 12, 2017Assignee: UNICHARM CORPORATIONInventors: Yuji Yamashita, Yasuhiro Koyama
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Patent number: 9206534Abstract: A method of continuously producing an opened fiber bundle for a cleaning member while conveying a fiber bundle, includes the steps of applying a tensile force to the fiber bundle; relaxing the tensioned fiber bundle to open the fiber bundle; and blowing air in a direction intersecting with the machine direction of the belt-shaped fiber bundle through an air outlet of an air feeder, to further open the belt-shaped fiber bundle and widen the belt-shaped fiber bundle in the width direction. An outer portion in the width direction of the air outlet is disposed downstream in the machine direction, compared with an inner portion in the width direction of the air outlet.Type: GrantFiled: January 25, 2013Date of Patent: December 8, 2015Assignee: UNICHARM CORPORATIONInventors: Yuji Yamashita, Yasuhiro Koyama
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Patent number: 9185969Abstract: An object of the present disclosure is to provide a method of producing an opened fiber bundle at high speed and in a space-saving manner. The method is as follows. A method of continuously producing an opened fiber bundle for a cleaning member, comprising the steps of (a1) providing (i) first nip rolls, (ii) second nip rolls, (iii) third nip rolls, and (iv) an opening facilitator; (a2) conveying a fiber bundle using the first nip rolls and the second nip rolls to apply a tensile force to the fiber bundle, the fiber bundle being pushed onto the upstream portion and the edge of the opening facilitator while conveying; and (a3) conveying the fiber bundle using the second nip rolls and the third nip rolls to relax the fiber bundle, thereby forming a belt-shaped fiber bundle.Type: GrantFiled: January 25, 2013Date of Patent: November 17, 2015Assignee: UNICHARM CORPORATIONInventors: Shigetomo Takahashi, Yasuhiro Koyama
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Patent number: 9048407Abstract: The present invention is a method for mounting, on a ceramic substrate (9), an LED chip (1), in which an upper surface of a positive electrode (6) is in a higher position than an upper surface of a negative electrode (5). The method includes the steps of: (i) laminating resist (16) on the negative electrode (5) and the positive electrode (6) and forming openings (16a and 16b) in the resist (16); (ii) forming bumps (11 and 12) in the respective openings (16a and 16b); (iii) removing the resist (16); and (iv) bonding bumps (11 and 12) to the ceramic substrate (9). A cross-sectional area of the opening (16a) is larger than a cross-sectional area of the opening (16b).Type: GrantFiled: June 8, 2011Date of Patent: June 2, 2015Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Koyama, Katsuji Kawakami, Mutsuo Kawasaki, Osamu Miyake, Hajime Oda, Keiichi Sawai
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Publication number: 20140186538Abstract: The present invention provides a novel method and apparatus for manufacturing a cleaning member including a fiber bundle having an oil agent uniformly attached thereto with no irregularity, wherein a first fiber bundle fed continuously in a prescribed direction is brought into contact with a transfer roller rotated in a direction opposite to the feeding direction of the first fiber bundle to transfer the oil agent applied to the surface of the transfer roller to the first fiber bundle.Type: ApplicationFiled: January 25, 2013Publication date: July 3, 2014Applicant: UNICHARM CORPORATIONInventors: Hiroaki GOTO, Yasuhiro KOYAMA
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Publication number: 20140183928Abstract: An object of the present disclosure is to provide a method of producing an opened fiber bundle at high speed and in a space-saving manner. The method is as follows. A method of continuously producing an opened fiber bundle for a cleaning member, comprising the steps of (a1) providing (i) first nip rolls, (ii) second nip rolls, (iii) third nip rolls, and (iv) an opening facilitator; (a2) conveying a fiber bundle using the first nip rolls and the second nip rolls to apply a tensile force to the fiber bundle, the fiber bundle being pushed onto the upstream portion and the edge of the opening facilitator while conveying; and (a3) conveying the fiber bundle using the second nip rolls and the third nip rolls to relax the fiber bundle, thereby forming a belt-shaped fiber bundle.Type: ApplicationFiled: January 25, 2013Publication date: July 3, 2014Applicant: UNICHARM CORPORATIONInventors: Shigetomo TAKAHASHI, Yasuhiro KOYAMA
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Publication number: 20140182779Abstract: A method of continuously producing an opened fiber bundle for a cleaning member while conveying a fiber bundle, includes the steps of applying a tensile force to the fiber bundle; relaxing the tensioned fiber bundle to open the fiber bundle; and blowing air in a direction intersecting with the machine direction of the belt-shaped fiber bundle through an air outlet of an air feeder, to further open the belt-shaped fiber bundle and widen the belt-shaped fiber bundle in the width direction. An outer portion in the width direction of the air outlet is disposed downstream in the machine direction, compared with an inner portion in the width direction of the air outlet.Type: ApplicationFiled: January 25, 2013Publication date: July 3, 2014Applicant: UNICHARM CORPORATIONInventors: Yuji YAMASHITA, Yasuhiro KOYAMA
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Publication number: 20130126524Abstract: A method for manufacturing a large capacity self-standing container at a low cost. A container comprises a lower container member and an upper container member joined at joint portions. The container has a content space formed by a lower container face and an upper container face, and lower flanges. The lower container face has a concave bottom container face at the bottom, which forms a concave bottom face wherein an object to be contained is fixed. The container is structured so that when at least one of the lower flanges and the bottom container face are arranged on a horizontal plane, a line perpendicularly projected to the horizontal surface from the gravity center of the container passes an area framed by a contact portion between the at least one of the lower flanges and the horizontal surface and a contact portion between the bottom container face and the horizontal surface.Type: ApplicationFiled: May 16, 2011Publication date: May 23, 2013Inventors: Takahiro Ueda, Yasuhiro Koyama
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Publication number: 20130065331Abstract: The present invention is a method for mounting, on a ceramic substrate (9), an LED chip (1), in which an upper surface of a positive electrode (6) is in a higher position than an upper surface of a negative electrode (5). The method includes the steps of: (i) laminating resist (16) on the negative electrode (5) and the positive electrode (6) and forming openings (16a and 16b) in the resist (16); (ii) forming bumps (11 and 12) in the respective openings (16a and 16b); (iii) removing the resist (16); and (iv) bonding bumps (11 and 12) to the ceramic substrate (9). A cross-sectional area of the opening (16a) is larger than a cross-sectional area of the opening (16b).Type: ApplicationFiled: June 8, 2011Publication date: March 14, 2013Applicant: Sharp Kabushiki KaishaInventors: Yasuhiro Koyama, Katsuji Kawakami, Mutsuo Kawasaki, Osamu Miyake, Hajime Oda, Keiichi Sawai
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Publication number: 20090149014Abstract: At step S101, a TiW film is formed by a sputtering method so as to cover a surface protection film and pad electrodes formed on a surface of a semiconductor element. Subsequently, an Au film is formed on the TiW film. At step S103, Au bumps are formed on the Au film using the Au film as a plating electrode. At step S105, unnecessary parts of the Au film are removed. At step S106, unnecessary parts of the TiW film are removed. At step S107, iodine left in areas where the unnecessary parts of the TiW film have been removed, is removed.Type: ApplicationFiled: April 7, 2008Publication date: June 11, 2009Inventors: Norimitsu NIE, Masahiro HORIO, Keiichi SAWAI, Yuji WATANABE, Yasuhiro KOYAMA, Katsuji KAWAKAMI
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Publication number: 20070158361Abstract: A liquid spray apparatus having a liquid supply assembly is disclosed. The assembly has a container and a collapsible liner received within the interior of the container. Sidewalls of the liner have a plurality of annular weak portions. As liquid (e.g. paint) in the liner is dispensed, the sidewalls are folded and collapsed regularly in the longitudinal direction without irregular local transverse deformations. The uniform collapsing of the liner enables stable spraying of the liquid and minimizes the amount of liquid left unsprayed.Type: ApplicationFiled: December 30, 2005Publication date: July 12, 2007Inventor: Yasuhiro Koyama
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Patent number: 6745917Abstract: Disclosed is a sheet package including: a sheet stack formed by folding and stacking rectangular sheets; and a container having a dispensing opening through which the sheets are to be removed. Each sheet is first folded on an X-axis folding line substantially parallel to one side of the rectangular shape, and then folded on a Y-axis folding line substantially perpendicular to the X-axis folding line, thereby to form a folded sheet having two outermost sheet portions appearing on two external surfaces thereof and intermediate sheet portions positioned between the outermost sheet portions. Adjacent folded sheets are combined such that X-axis folding lines of the adjacent folded sheets are positioned at opposite sides of the sheet stack and only an outermost sheet portion of one folded sheet is sandwiched between an outermost sheet portion and an intermediate sheet portion of the other folded sheet.Type: GrantFiled: May 3, 2002Date of Patent: June 8, 2004Assignee: Uni-Charm CorporationInventors: Yasuhiro Koyama, Takeshi Bando
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Patent number: 6643995Abstract: A box body (11) having a bottom face portion (12), side face portions (13, 14) and corner sealing portions (15) is formed of a packaging material of a soft sheet, and flange portions (16, 17) and flange jointing portions (18) are formed by folding the upper portions of the side face portions (13, 14). After this box body (11) is charged with a content, a cover member (30) is jointed to the flange portions.Type: GrantFiled: May 19, 2000Date of Patent: November 11, 2003Assignee: Uni-Charm CorporationInventors: Yasuhiro Koyama, Takeshi Bando, Yukiko Iida, Ikuya Saitou
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Publication number: 20020166868Abstract: Disclosed is a sheet package including: a sheet stack formed by folding and stacking rectangular sheets; and a container having a dispensing opening through which the sheets are to be removed. Each sheet is first folded on an X-axis folding line substantially parallel to one side of the rectangular shape, and then folded on a Y-axis folding line substantially perpendicular to the X-axis folding line, thereby to form a folded sheet having two outermost sheet portions appearing on two external surfaces thereof and intermediate sheet portions positioned between the outermost sheet portions. Adjacent folded sheets are combined such that X-axis folding lines of the adjacent folded sheets are positioned at opposite sides of the sheet stack and only an outermost sheet portion of one folded sheet is sandwiched between an outermost sheet portion and an intermediate sheet portion of the other folded sheet.Type: ApplicationFiled: May 3, 2002Publication date: November 14, 2002Applicant: UNI-CHARM CORPORATIONInventors: Yasuhiro Koyama, Takeshi Bando
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Patent number: 6273610Abstract: There is disclosed a package including a box body having an opening and a cover member for closing the opening of the box body. The box body is formed of a packaging material of a soft sheet having a monolayer of a resin film or a multi-layer structure having a resin film. The box body includes: a rectangular bottom face portion; four side face portions folded from the four sides of the bottom face portion; corner sealing portions formed by jointing the inner faces of the side face portions at corner portions between the adjoining side face portions; flange portions folded outward of the box body from the upper ends of the side face portions substantially at a right angle thereto and with a predetermined width size; and flange jointing portions jointing the flange portions folded from the side face portions without any clearance between each other at the upper ends of the corner portions between the adjoining side face portions.Type: GrantFiled: May 19, 2000Date of Patent: August 14, 2001Assignee: Uni-Charm CorporationInventors: Yasuhiro Koyama, Takeshi Bando, Yukiko Iida, Ikuya Saitou
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Patent number: 5981366Abstract: A method for forming a non-volatile memory having a floating gate electrode arranged therein. The floating gate electrode being formed by alternatingly laminating on a silicon substrate a polysilicon layer and a tungsten silicide layer with a tunnel oxide sandwiched between said substrate and said polysilicon layer. The tungsten silicide layer is formed with a CVD technique reducing WF.sub.6 gas with SiH.sub.2 Cl.sub.2 gas.Type: GrantFiled: September 17, 1992Date of Patent: November 9, 1999Assignee: Sharp Kabushiki KaishaInventors: Yasuhiro Koyama, Hiroshi Ishihara