Patents by Inventor Tsutomu Yasui
Tsutomu Yasui 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: 20130312934Abstract: To provide a liquid cooling system for an electric component mounted in an aircraft, in which a flow rate of a coolant fed to the electric component mounted in the aircraft is optimized by a simple method, a liquid cooling system 1 for an electric component mounted in an aircraft adopts a flow rate adjusting valve which is a thermostat valve 5 such that the opening degree of the valve increases with an increase in the temperature of the coolant flowing into the flow rate adjusting valve so as to raise the flow rate of the coolant fed to the electric component 50, and the opening degree of the valve decreases with a decrease in the temperature of the coolant flowing into the flow rate adjusting valve so as to reduce the flow rate of the coolant fed to the electric component 50.Type: ApplicationFiled: May 17, 2013Publication date: November 28, 2013Applicant: NABTESCO CORPORATIONInventor: Tsutomu Yasui
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Publication number: 20110182041Abstract: First solder is lead-free solder that contains no lead (Pb). The first solder includes a first metal that contains at least Sn; and a second metal that contains at least a Ni—Fe alloy.Type: ApplicationFiled: January 13, 2011Publication date: July 28, 2011Applicant: TDK CORPORATIONInventors: Tsutomu YASUI, Hisayuki ABE, Kenichi KAWABATA, Tomoko KITAMURA
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Publication number: 20110014004Abstract: A set of a bolt and a nut having a rotation prohibiting mechanism comprises a foldable part (30) at the tip of a bolt (20), that can be folded around an axis perpendicular to a bolt axis. A tip portion (30) can be folded to either sides with the direction extending along the bolt axis as a center. Grooves (18a-18g) for storing the foldable part (30) are formed on a tip surface (a surface from which the tip of the bolt projects out when the bolt and the nut are tightened) of the nut (12) or the knob (18). A number of the grooves is an odd number. The grooves are arranged radially with equal angular intervals with a center at a screw hole of the nut. For example, seven grooves are arranged radially with equal angular intervals. In this case, the angle between adjacent two grooves is about 51.4 degrees, and this angle is to be an expected angular resolution of the rotation prohibition. However, according to the above mentioned set of the bolt and the nut, the expected angular resolution can be halved (i.e. 25.Type: ApplicationFiled: March 7, 2008Publication date: January 20, 2011Applicant: NABTESCO CORPORATIONInventor: Tsutomu Yasui
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Patent number: 7692924Abstract: The present invention provides a rack suitable for housing a liquid-cooled electric unit. A rack 2 comprises an electric connector 12 for supplying electricity to the housed electric unit 50, and a fluid connector 14 for supplying cooling liquid to the housed electric unit 50. The fluid connector 14 and the electric connector 12 are arranged at different positions in a horizontal cross section (plane) of the rack 2. More preferably, the electric connector 12 is mounted on a back panel 6 of the rack 2, while the fluid connector 14 is mounted on the foreside of the rack 2. Such a configuration makes it less likely that the cooling liquid leaking from the fluid connector 14 drips onto the electric connector 12.Type: GrantFiled: March 3, 2008Date of Patent: April 6, 2010Assignees: Nabtesco Corporation, Hamilton SundstrandInventors: Jeffrey T. Wavering, Francis C. Belisle, Darin R. Driessen, Tsutomu Yasui
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Publication number: 20090219692Abstract: The present invention provides a rack suitable for housing a liquid-cooled electric unit. A rack 2 comprises an electric connector 12 for supplying electricity to the housed electric unit 50, and a fluid connector 14 for supplying cooling liquid to the housed electric unit 50. The fluid connector 14 and the electric connector 12 are arranged at different positions in a horizontal cross section (plane) of the rack 2. More preferably, the electric connector 12 is mounted on a back panel 6 of the rack 2, while the fluid connector 14 is mounted on the foreside of the rack 2. Such a configuration makes it less likely that the cooling liquid leaking from the fluid connector 14 drips onto the electric connector 12.Type: ApplicationFiled: March 3, 2008Publication date: September 3, 2009Applicants: NABTESCO CORPORATION, HAMILTON SUNDSTRANDInventors: Jeffrey T. Wavering, Francis C. Belisle, Darin R. Driessen, Tsutomu Yasui
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Patent number: 7125788Abstract: A circuit device includes at least one under bump metal formed on a surface of a substrate and a connection bump provided on the uppermost layer of the under bump metal. At least one laminated metallic film is formed on part of or all of wiring pattern formed on the surface of the substrate, so that the laminated metallic film formed consists of the same material and has the same thickness as the under bump metal.Type: GrantFiled: March 4, 2005Date of Patent: October 24, 2006Assignee: TDK CorporationInventors: Takaaki Domon, Toshiyuki Nagatsuka, Tsutomu Yasui, Ryoichi Kondo
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Publication number: 20050224972Abstract: A circuit device comprises at least one under bump metal formed on a surface of a substrate and a connection bump provided on the uppermost layer of the under bump metal. At least one laminated metallic film is formed on part of or all of wiring pattern formed on the surface of the substrate, so that the laminated metallic film formed is consisted of the same material and also the same thickness as the under bump metal.Type: ApplicationFiled: March 4, 2005Publication date: October 13, 2005Applicant: TDK CorporationInventors: Takaaki Domon, Toshiyuki Nagatsuka, Tsutomu Yasui, Ryoichi Kondo
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Patent number: 6954117Abstract: In an electronic component having a piezo-electric resonator 10 formed on an element substrate 11 and obtaining a signal having a predetermined resonant frequency by a bulk wave propagating within a piezo-electric film 15, a mounting substrate 19 on which the piezo-electric resonator 10 is mounted by face-down bonding through N bumps 18, when a maximum diameter of said N bumps 18 is defined as D ?m, die shear strength of said N bumps 18 is not smaller than ND/6 (g), preferably, not smaller than ND/3.6 (g).Type: GrantFiled: March 23, 2004Date of Patent: October 11, 2005Assignee: TDK CorporationInventors: Eiju Komuro, Toshiyuki Nagatsuka, Tsutomu Yasui
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Patent number: 6945269Abstract: In a fluidic device, a space (35) is formed in a passage block (26) to which a plurality of fluidic modules are connected and which is provided, in its inside, with fluid passages (43, 47, 51) for connecting the plurality of fluidic modules to one another. An internal body (36) is received in the space (35). Channels (37, 38, 39) are formed in an outer surface of the internal body so that the channels (37, 38, 39) constitute part of the fluid passages.Type: GrantFiled: July 17, 2003Date of Patent: September 20, 2005Assignee: Teijin Seiki Co., Ltd.Inventors: Masakazu Hattori, Tsutomu Yasui
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Publication number: 20050093649Abstract: In an electronic component having a piezo-electric resonator 10 formed on an element substrate 11 and obtaining a signal having a predetermined resonant frequency by a bulk wave propagating within a piezo-electric film 15, a mounting substrate 19 on which the piezo-electric resonator 10 is mounted by face-down bonding through N bumps 18, when a maximum diameter of said N bumps 18 is defined as D ?m, die shear strength of said N bumps 18 is not smaller than ND/6 (g), preferably, not smaller than ND/3.6 (g).Type: ApplicationFiled: March 23, 2004Publication date: May 5, 2005Applicant: TDK CorporationInventors: Eiju Komuro, Toshiyuki Nagatsuka, Tsutomu Yasui
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Publication number: 20050088060Abstract: In an electronic component having a piezo-electric resonator 10 formed on an element substrate and obtaining a signal having a predetermined resonant frequency by a bulk wave propagating through a piezo-electric film, a packaging substrate 19 on which the piezo-electric resonator 10 is mounted by face-down bonding through bumps 18, and a lid 21 fixed on the packaging substrate 19 and sealing the piezo-electric resonator 10, a distance between a surface of the piezo-electric resonator 10 facing said packaging substrate 19 and a surface of the packaging substrate 19 facing the piezo-electric resonator 10 is not larger than 100 ?m. A maximum diameter of the bump 18 is not larger than 150 ?m, when the bump 18 is connected to the packaging substrate 19. A distance between a surface of the piezo-electric resonator 10 facing the lid 21 and a surface of the lid 21 facing the piezo-electric resonator 10 is not larger than 150 ?m.Type: ApplicationFiled: March 23, 2004Publication date: April 28, 2005Applicant: TDK CorporationInventors: Eiju Komuro, Toshiyuki Nagatsuka, Tsutomu Yasui
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Publication number: 20040144433Abstract: In a fluidic device, a space (35) is formed in a passage block (26) to which a plurality of fluidic modules are connected and which is provided, in its inside, with fluid passages (43, 47, 51) for connecting the plurality of fluidic modules to one another. An internal body (36) is received in the space (35). Channels (37, 38, 39) are formed in an outer surface of the internal body so that the channels (37, 38, 39) constitute part of the fluid passages.Type: ApplicationFiled: July 17, 2003Publication date: July 29, 2004Applicant: Teijin Seiki Co., Ltd.Inventors: Masakazu Hattori, Tsutomu Yasui
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Patent number: 6651505Abstract: A pressure detecting apparatus includes: a housing (11) for forming fluid chambers (21A and 21B) into which external fluid pressures are imported respectively; a pressure-receiving member (31) slidably provided in the housing (11) for receiving the fluid pressures from the fluid chambers (21A and 21B); an elastic member (35) supported by the housing (11) and elastically deformed due to a slide displacement of the pressure-receiving member (31) from a predetermined position; a displacement detecting means (12) for detecting the displacement of the pressure-receiving member (31) from the predetermined position; the elastic member including a base portion supported by the housing, an engagement portion engaged with the pressure-receiving member, and a flexible arm extending from the base portion toward the engagement portion along a plane approximately perpendicular to a direction of sliding of the pressure-receiving member.Type: GrantFiled: April 3, 2001Date of Patent: November 25, 2003Assignee: Teijin Seiki Co., Ltd.Inventors: Masakazu Hattori, Tsutomu Yasui
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Patent number: 6626205Abstract: In a fluidic device, a space (35) is formed in a passage block (26) to which a plurality of fluidic modules are connected and which is provided, in its inside, with fluid passages (43, 47, 51) for connecting the plurality of fluidic modules to one another. An internal body (36) is received in the space (35). Channels (37, 38, 39) are formed in an outer surface of the internal body so that the channels (37, 38, 39) constitute part of the fluid passages.Type: GrantFiled: December 17, 2002Date of Patent: September 30, 2003Assignee: Teijin Seiki Co., Ltd.Inventors: Masakazu Hattori, Tsutomu Yasui
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Publication number: 20030084944Abstract: In a fluidic device, a space (35) is formed in a passage block (26) to which a plurality of fluidic modules are connected and which is provided, in its inside, with fluid passages (43, 47, 51) for connecting the plurality of fluidic modules to one another. An internal body (36) is received in the space (35). Channels (37, 38, 39) are formed in an outer surface of the internal body so that the channels (37, 38, 39) constitute part of the fluid passages.Type: ApplicationFiled: December 17, 2002Publication date: May 8, 2003Applicant: Teijin Seiki Co., Ltd.Inventors: Masakazu Hattori, Tsutomu Yasui
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Patent number: 6520208Abstract: In a fluidic device, a space (35) is formed in a passage block (26) to which a plurality of fluidic modules are connected and which is provided, in its inside, with fluid passages (43, 47, 51) for connecting the plurality of fluidic modules to one another. An internal body (36) is received in the space (35). Channels (37, 38, 39) are formed in an outer surface of the internal body so that the channels (37, 38, 39) constitute part of the fluid passages.Type: GrantFiled: June 4, 2002Date of Patent: February 18, 2003Assignee: Teijin Seiki Co., Ltd.Inventors: Masakazu Hattori, Tsutomu Yasui
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Publication number: 20020148517Abstract: In a fluidic device, a space (35) is formed in a passage block (26) to which a plurality of fluidic modules are connected and which is provided, in its inside, with fluid passages (43, 47, 51) for connecting the plurality of fluidic modules to one another. An internal body (36) is received in the space (35). Channels (37, 38, 39) are formed in an outer surface of the internal body so that the channels (37, 38, 39) constitute part of the fluid passages.Type: ApplicationFiled: June 4, 2002Publication date: October 17, 2002Applicant: Teijin Seiki Co., Ltd.Inventors: Masakazu Hattori, Tsutomu Yasui
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Patent number: 6435205Abstract: In a fluidic device, a space (35) is formed in a passage block (26) to which a plurality of fluidic modules are connected and which is provided, in its inside, with fluid passages (43, 47, 51) for connecting the plurality of fluidic modules to one another. An internal body (36) is received in the space (35). Channels (37, 38, 39) are formed in an outer surface of the internal body so that the channels (37, 38, 39) constitute part of the fluid passages.Type: GrantFiled: March 20, 2000Date of Patent: August 20, 2002Assignee: Teijin Seiki Co., Ltd.Inventors: Masakazu Hattori, Tsutomu Yasui
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Publication number: 20010042411Abstract: A pressure detecting apparatus includes: a housing (11) for forming fluid chambers (21A and 21B) into which external fluid pressures are imported respectively; a pressure-receiving member (31) slidably provided in the housing (11) for receiving the fluid pressures from the fluid chambers (21A and 21B); an elastic member (35) supported by the housing (11) and elastically deformed due to a slide displacement of the pressure-receiving member (31) from a predetermined position; a displacement detecting means (12) for detecting the displacement of the pressure-receiving member (31) from the predetermined position; the elastic member including a base portion supported by the housing, an engagement portion engaged with the pressure-receiving member, and a flexible arm extending from the base portion toward the engagement portion along a plane approximately perpendicular to a direction of sliding of the pressure-receiving member.Type: ApplicationFiled: April 3, 2001Publication date: November 22, 2001Applicant: Teijin Seiki Co., Ltd.Inventors: Masakazu Hattori, Tsutomu Yasui