Patents by Inventor Mamoru Tsuda

Mamoru Tsuda 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).

  • Patent number: 10097130
    Abstract: An energization control system includes a sensor unit including a magnetic detection portion detecting a magnetic flux density of a magnetic flux generated at a surrounding of a conductor in response to a current flowing in the conductor of an electrical apparatus, a temperature detection portion detecting a temperature level within a package in which the magnetic detection portion is disposed, a correction portion correcting a temperature characteristic of a detection result of the magnetic detection portion based on the detected temperature level, and an output portion outputting temperature information indicating the detected temperature level. The energization control system further includes a control unit including a control portion controlling a current flowing in a heating element of the electrical apparatus based on the temperature information.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: October 9, 2018
    Assignee: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Mamoru Tsuda, Ken Okumura, Hiromu Kinoshita
  • Publication number: 20170370968
    Abstract: A current sensor includes: six or more bus bars; a core made of a magnetic material and having a base portion and seven or more arm portions which extend in a vertical direction from the base portion and are spaced apart from each other, and in which each of the bus bars is inserted into a gap formed between adjacent arm portions; and a main body configured to integrally hold the bus bars and the core in a state in which the bus bars and the core are insert-molded using polyphenylene sulfide (PPS) or polyphthalamide (PPA).
    Type: Application
    Filed: June 14, 2017
    Publication date: December 28, 2017
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Ken OKUMURA, Mamoru Tsuda
  • Publication number: 20170163204
    Abstract: An energization control system includes a sensor unit including a magnetic detection portion detecting a magnetic flux density of a magnetic flux generated at a surrounding of a conductor in response to a current flowing in the conductor of an electrical apparatus, a temperature detection portion detecting a temperature level within a package in which the magnetic detection portion is disposed, a correction portion correcting a temperature characteristic of a detection result of the magnetic detection portion based on the detected temperature level, and an output portion outputting temperature information indicating the detected temperature level. The energization control system further includes a control unit including a control portion controlling a current flowing in a heating element of the electrical apparatus based on the temperature information.
    Type: Application
    Filed: November 30, 2016
    Publication date: June 8, 2017
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Mamoru TSUDA, Ken OKUMURA, Hiromu KINOSHITA
  • Publication number: 20090134866
    Abstract: A rotation detecting device includes a rotation detecting element detecting rotation speed of a rotating object and including lead terminals, a holder integrally molded with an electrode terminal to which the lead terminals are connected, including an opposing surface in opposition to the rotating object and a contact surface on the opposite side of the opposing surface, and accommodating the rotation detecting element, a cover accommodating the holder and including a bottom face portion in contact with the holder at the contact surface and a peripheral wall portion formed along the periphery of the bottom face portion, and a housing molded with resin, accommodating a lateral face of the holder being in contact with the cover, and fixing the holder to the cover. The holder includes a first resin filling portion filled with a first resin and a second resin filling portion isolated from the first resin filling portion.
    Type: Application
    Filed: November 10, 2008
    Publication date: May 28, 2009
    Inventors: Mamoru Tsuda, Akira Kamiya, Eiichiro Iwase
  • Publication number: 20090078043
    Abstract: A rotation detecting device includes a sensor IC, a holder to which the sensor IC is attached, a case body attached to the holder and accommodating the holder and the sensor IC in an internal space of the case body, and a housing accommodating a portion of the case body and the holder. The holder includes a through-hole, which establishes a connection with the internal space of the case body when the case body is attached to the holder. The through-hole is used for injecting a first resin into the internal space of the case body. The injected first resin surrounds the sensor IC in the internal space of the case body. The housing is made of a second resin, which covers the through-hole when the housing is molded with the second resin.
    Type: Application
    Filed: September 17, 2008
    Publication date: March 26, 2009
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Mamoru TSUDA, Eiichiro Iwase
  • Patent number: 6612231
    Abstract: A squeegee for forcing a print material into apertures of a mask screen which is disposed on an object, so as to print the print material on the object. The squeegee includes: (a) a plate body movable relative to the mask screen in sliding contact thereof with one of opposite surfaces of the mask screen which is remote from the object, while taking a rearward inclined posture in which the plate body is inclined such that a distal end portion of the plate body is positioned on a forward side of a proximal end portion of the plate body as viewed in a squeegee moving direction in which the plate body is moved relative to the mask screen; and (b) a bank portion provided on one of opposite surfaces of the plate body which is remote from the mask screen, and having a blocking surface which projects from the distal end portion of the plate body in a direction away from the mask screen. The bank portion is made of a material softer than a material of the plate body.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: September 2, 2003
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Toshinori Shimizu, Manabu Mizuno, Jun Adachi, Mamoru Tsuda
  • Patent number: 6405895
    Abstract: An apparatus for arranging and supplying a plurality of objects, the apparatus including a chute which includes at least one end portion extending in a direction inclined with respect to a horizontal plane, and which causes the objects arranged in an array to be moved, a hopper which is provided on a side of the one end portion of the chute, which stores the objects in bulk, and which includes a funnelform bottom portion, a guide which is provided between a lower end of the bottom portion of the hopper and an upper end of the one end portion of the chute, and which guides, in a guiding direction, the objects from the hopper to the chute while arranging the objects into the array, the guide including a plurality of guide members comprising at least one movable guide member which is movable relative to at least one other guide member in the guiding direction, arid a movable-guide-member moving device which moves the movable guide member relative to the other guide member in the guiding direction.
    Type: Grant
    Filed: April 27, 2000
    Date of Patent: June 18, 2002
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Takeshi Kondo, Yoshiyuki Kondo, Mamoru Tsuda
  • Publication number: 20020056379
    Abstract: A squeegee for forcing a print material into apertures of a mask screen which is disposed on an object, so as to print the print material on the object. The squeegee includes: (a) a plate body movable relative to the mask screen in sliding contact thereof with one of opposite surfaces of the mask screen which is remote from the object, while taking a rearward inclined posture in which the plate body is inclined such that a distal end portion of the plate body is positioned on a forward side of a proximal end portion of the plate body as viewed in a squeegee moving direction in which the plate body is moved relative to the mask screen; and (b) a bank portion provided on one of opposite surfaces of the plate body which is remote from the mask screen, and having a blocking surface which projects from the distal end portion of the plate body in a direction away from the mask screen. The bank portion is made of a material softer than a material of the plate body.
    Type: Application
    Filed: December 6, 2001
    Publication date: May 16, 2002
    Applicant: FUJI MACHINE MFG. CO., LTD.
    Inventors: Toshinori Shimizu, Manabu Mizuno, Jun Adachi, Mamoru Tsuda
  • Patent number: 6332558
    Abstract: A chip feeder for feeding chips stored in bulk in a case thereof, one by one, from a chip-supply portion thereof, the chip feeder including a partition plate which parts an inner space of the case into a plurality of rooms, the partition plate having an opening which extends in a direction intersecting a horizontal plane and which communicates the respective rooms on both sides of the partition plate, with each other, a movable partition member which extends across the opening of the partition plate and which is movable relative to the opening in the direction intersecting the horizontal plane, and a movable-partition-member control device which controls the movable partition member so that a lower portion of the movable partition member sinks in an upper portion of a mass of the chips stored in bulk in the case and an upper portion of the movable partition member projects upward from the mass of the chips.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: December 25, 2001
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Akihiro Udagawa, Mamoru Tsuda
  • Patent number: 6202728
    Abstract: An electric-component feeder for feeding a carrier tape carrying electric components at a predetermined component-carry pitch, at a tape-feed pitch equal to a quotient obtained by dividing the component-carry pitch by an integral number, and thereby supplying the electric components, one by one, the feeder including a main frame including a tape guide which guides the carrier tape in a lengthwise direction thereof; a cam which has a cam surface and which is provided on the main frame such that the cam surface is movable relative to the main frame; a cam drive device which is supported by the main frame and which drives the cam and thereby moves the cam surface relative to the main frame; a cam follower which is supported by the main frame and which follows the cam surface while being moved by the cam surface being moved by the cam drive device; and a motion converting device which is supported by the main frame and which converts the motion of the cam follower into the feeding of the carrier tape at the tape-
    Type: Grant
    Filed: October 22, 1998
    Date of Patent: March 20, 2001
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Yukinori Takada, Toshikatsu Terashima, Mamoru Tsuda, Koichi Asai
  • Patent number: 6199738
    Abstract: A method and apparatus for moving component supplying units, each of which carries electric components, along a reference line along which respective component-supply portions of the component supplying units are arranged so as to sequentially position a respective component-supply portion at a component-supply position. The method and apparatus also causes an external drive device to operate a drive member thereof to drive a member of a feeding device of each component supplying unit to perform a component feeding action and a component feeding preparing action and thereby feed the electric components of each unit one by one to the component-supply portion of each unit. The component-feeding action causing one of the electric components of each unit to be fed to the component-supply portion of each unit with the component-feeding preparing action causing the feeding device to be prepared for the component feeding action.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: March 13, 2001
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Yoshiyuki Kondo, Toshikatsu Terashima, Mamoru Tsuda
  • Patent number: 6142293
    Abstract: An apparatus for conveying a circuit substrate, including: two belts which are provided at respective positions apart from each other in a first direction, and which include respective flat portions extending parallel to each other in a second direction perpendicular to the first direction; two substrate guides one of which extends over one of opposite sides of the flat portion of a corresponding one of the two belts, and the other of which extends over one of opposite sides of the flat portion of the other belt, the one side of the flat portion of the one belt being remoter from the other belt than the other side of the flat portion of the one belt in the first direction, the one side of the flat portion of the other belt being remoter from the one belt than the other side of the flat portion of the other belt in the first direction, the two substrate guides having respective guide surfaces opposite to each other; the respective other sides of the respective flat portions providing respective substrate-conve
    Type: Grant
    Filed: January 6, 1999
    Date of Patent: November 7, 2000
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Kuniaki Ozawa, Toshikatsu Terashima, Mamoru Tsuda
  • Patent number: 6076394
    Abstract: An electric-component transferring apparatus having a suction testing function, including at least one suction device which sucks and holds an electric component by a negative pressure; a suction-device moving device which moves the suction device; a negative-pressure control device which controls the negative pressure supplied to the suction device; a negative-pressure measuring device which measures the negative pressure of the suction device; and a test control device which controls the suction-device moving device, the negative-pressure control device, and the negative-pressure measuring device so that the suction-device moving device moves the suction device to a position where the negative-pressure measuring device is present and the measuring device measures the negative pressure of the suction device.
    Type: Grant
    Filed: September 2, 1997
    Date of Patent: June 20, 2000
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Mamoru Tsuda, Zenichi Nagatomo, Toshikatsu Terashima
  • Patent number: 5992791
    Abstract: A tape take-up for taking up a tape, including a first member having a first friction surface; and a second member including a drum portion for taking up the tape, and having a second friction surface, the drum portion having an axis line, at least one of the first and second friction surfaces including an annular friction surface concentric with the drum portion, the first and second members being combined with each other such that the first and second members are rotatable relative to each other about the axis line of the drum portion while the first and second friction surfaces are held in contact with each other, one of the first and second members including a permanent magnet, the other of the first and second members including a magnetic portion formed of a magnetic material, the permanent magnet and the magnetic portion having respective shapes which ensure that the permanent magnet and the magnetic portion are opposed to each other at any relative angular phase between the first and second members, th
    Type: Grant
    Filed: July 15, 1998
    Date of Patent: November 30, 1999
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Mamoru Tsuda, Tokiyuki Kuno, Makoto Hosono
  • Patent number: 5881914
    Abstract: An adhesive dispenser for iteratively dispensing a controlled amount of an adhesive from a reservoir, by iteratively applying a pressure to the adhesive stored in the reservoir such that the controlled amount of adhesive is released from a nozzle connected to the reservoir via a supply passage and is applied to an object, the adhesive dispenser including at least one of an adhesive-temperature control device which controls a temperature of the adhesive present in the supply passage, by supplying a fluid to a first space at least partly surrounding at least a portion of the supply passage, and a pressure control device which is switchable to at least a pressing state thereof in which the pressure control device supplies a pressurized gas to a second space above the adhesive stored in the reservoir and a sucking state thereof in which the pressure control device sucks the gas from the second space.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: March 16, 1999
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Mamoru Tsuda, Akihiro Udagawa
  • Patent number: 5762754
    Abstract: An electronic-component supplying cartridge is provided which includes a movable and an immovable jumping-out-preventing member and is free from jumping of electronic components out of electronic-component accommodating pockets, changing of posture of the components, or standing-up of the components due to suction. A shutter 210 is attached to a cover 82 fixed to a cartridge frame, such that the shutter 210 is movable relative to the cover 82 in the tape feeding direction. The shutter 210 includes a connection portion 214 having a groove 222 opening at a downstream-side end thereof as seen in the feeding direction, and a pair of movable jumping-out-preventing strips 228. When the shutter 210 is moved to a second position thereof, the strips 228 are received in receiving recesses 200, respectively. When a component carrier tape is fed, the shutter 210 is moved to a first position thereof where the strips 228 cover a component accommodating pocket fed to an electronic-component picking-up position.
    Type: Grant
    Filed: March 13, 1997
    Date of Patent: June 9, 1998
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Yoshiyuki Kondo, Tokiyuki Kuno, Yasuo Muto, Mamoru Tsuda
  • Patent number: 5695309
    Abstract: An electronic-component supplying cartridge is provided which includes a movable and an immovable jumping-out-preventing member and is free from jumping of electronic components out of electronic-component accommodating pockets, changing of posture of the components, or standing-up of the components due to suction. A shutter 210 is attached to a cover 82 fixed to a cartridge frame, such that the shutter 210 is movable relative to the cover 82 in the tape feeding direction. The shutter 210 includes a connection portion 214 having a groove 222 opening at a downstream-side end thereof as seen in the feeding direction, and a pair of movable jumping-out-preventing strips 228. When the shutter 210 is moved to a second position thereof, the strips 228 are received in receiving recesses 200, respectively. When a component carrier tape is fed, the shutter 210 is moved to a first position thereof where the strips 228 cover a component accommodating pocket fed to an electronic-component picking-up position.
    Type: Grant
    Filed: June 29, 1995
    Date of Patent: December 9, 1997
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Yoshiyuki Kondo, Tokiyuki Kuno, Yasuo Muto, Mamoru Tsuda
  • Patent number: 5658122
    Abstract: An electronic-component supplying system including electronic-component supplying cartridges each of which supplies each of electronic components, a support table to which the cartridges are attachable and which has a support surface for supporting the cartridges attached to the support table, a positioning device which positions each cartridge attached to the support table, on the support surface, and a preventing device which prevents each cartridge attached to the support table, from moving apart from the support surface, the positioning device including one or more first positioning projections provided on one of the support table and each cartridge, one or more first positioning grooves provided on the other of the support table and each cartridge, such that the first positioning groove extends in a first direction and is engageable with the first positioning projection to position the first positioning projection in a second direction perpendicular to the first direction while permitting the first posit
    Type: Grant
    Filed: July 28, 1995
    Date of Patent: August 19, 1997
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Hiroyasu Ohashi, Tokiyuki Kuno, Yasuo Muto, Mamoru Tsuda
  • Patent number: 5294035
    Abstract: A ratchet device is disclosed which includes a body, a ratchet wheel rotatably supported by the body, a feed pawl having an engaging portion engageable with teeth of the ratchet wheel, a support member for holding the feed pawl, a member for biasing the feed pawl toward the wheel teeth, and a drive device for moving reciprocating the support member between two positions to place the feed pawl alternately in its fully advanced and retracted positions, so as to rotate the ratchet wheel a predetermined angle in one direction. The ratchet device further includes a stopper member for contact with the feed pawl when the pawl is placed in the fully retracted position, to thereby prevent the engaging portion of the pawl from disengaging from the teeth of the ratchet wheel.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: March 15, 1994
    Assignee: Fuji Machine Mfg. Co., Ltd.
    Inventors: Koichi Asai, Mamoru Tsuda, Shinsuke Suhara
  • Patent number: RE33974
    Abstract: Are disclosed a method of detecting a hold-position of an electronic component in which the component is held by an electronic-component holding apparatus, an electronic-component holding apparatus having a hold-position detecting device, and an electronic-component mounting apparatus for mounting an electronic component on a printed-circuit board. The above method includes the steps of emitting light beams in a direction toward the electronic component (W) held by the electronic-component holding apparatus (58, 70), so as to take a projection of the component, and of detecting a position of the projection, thereby detecting the hold-position of the component.
    Type: Grant
    Filed: February 21, 1991
    Date of Patent: June 30, 1992
    Assignee: Fuji Machine Manufacturing Co., Ltd.
    Inventors: Koichi Asai, Mamoru Tsuda, Yasuo Muto