Patents by Inventor Yukihiro Asa

Yukihiro Asa 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: 8616985
    Abstract: A coupling that requires misalignment measures comprises a first hub and second hub, and a connection member that connects the first hub 10 and second hub 20 with each other, wherein the connection member has a plurality of columns, and beams that connect the respective columns with each other, wherein the beams that are next to each other among the respective beams are connected with the respective columns at the end of the first hub side on one side, and are connected with the respective columns at the end on the second hub side.
    Type: Grant
    Filed: April 9, 2012
    Date of Patent: December 31, 2013
    Assignee: Asa Electronics Industry Co., Ltd.
    Inventor: Yukihiro Asa
  • Publication number: 20120264525
    Abstract: To provide a coupling that requires misalignment measures. The coupling comprises a first hub 10 and second hub 20, and a connection member 50 that connects the first hub 10 and second hub 20 with each other, wherein the connection member 50 has a plurality of columns 59-62, and beams 51, 52, 57, 58 that connect the respective columns 59-62 with each other, wherein the beams 51, 58 that are next to each other among the respective beams 51, 52, 57, 58 are connected with the respective columns 53, 54 at the end of the first hub 10 side on one side, and are connected with the respective columns 54, 55 at the end on the second hub 20 side.
    Type: Application
    Filed: April 9, 2012
    Publication date: October 18, 2012
    Applicant: ASA ELECTRONICS INDUSTRY CO., LTD
    Inventor: Yukihiro ASA
  • Publication number: 20120206130
    Abstract: Position detecting devices 1a and 1b respectively include Hall IC switching on/off the state of the output depending on relative position to magnet 140 placed so that moving direction of piston 110 is perpendicular to the boundary of a first magnetic pole and a second magnetic pole and resin for covering the Hall IC, wherein the Hall IC of the first position detecting device switches on/off of the state of the output by magnetic force from the first magnetic pole, and wherein Hall IC of the second position detecting device switches on/off of the state of the output by magnetic force from the second magnetic pole.
    Type: Application
    Filed: January 18, 2012
    Publication date: August 16, 2012
    Inventor: Yukihiro ASA
  • Patent number: 8100773
    Abstract: A joint whose number of parts is reduced and whose production process is simplified. The joint has spherical bodies (29a-29d), a circular cylindrical inner hub (20) in which hemispherical receiving sections (22a-22d) for receiving the spherical bodies (29a-29d) are formed in curved surfaces, and an outer hub (10) that has a receiving section (17) for receiving the inner hub (20) and also has longitudinal grooves (12a-12d) integrally formed with the receiving section (17) and in which the spherical bodies (29a-29d) received in the receiving sections (22a-22d) are received.
    Type: Grant
    Filed: November 27, 2006
    Date of Patent: January 24, 2012
    Assignee: ASA Electronics Industry Co., Ltd
    Inventor: Yukihiro Asa
  • Patent number: 7999538
    Abstract: To provide a position sensor small enough to be contained in a groove formed in an air cylinder in which minimum stroke for fixing and differential travel are improved [MEANS FOR SOLVING PROBLEMS] The position sensor comprises a Hall IC (50) for turning an electric signal on/off according to the position relative to a magnet provided on the piston of an air cylinder, a resin (60) such as a polyamide resin molded to cover the Hall IC (50), a stainless steel frame (30) defining the orientation and position of the Hall IC (50) in the resin (60), a part (40) fixed to the frame (30) in order to pass a screw for fixing the position sensor (1) to the air cylinder, conductors (18, 20, 22) connected to terminals (24, 26, 28) of the Hall IC (50) by soldering, rubber insulators (12, 14, 16) covering the conductors (18, 20, 22), and a rubber sheath part (10) for bundling the insulators (12, 14, 16).
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: August 16, 2011
    Assignee: Asa Electronic Industry Co., Ltd.
    Inventor: Yukihiro Asa
  • Patent number: 7791336
    Abstract: The purpose is to achieve size reduction, weight reduction and thickness reduction of a magnetic material detecting device (1). The device comprises a linearly displaceable magnet (12) and a Hall IC (14) for detecting the displacement of the magnet (12). When an iron piece (28) is positioned within a predetermined distance from the main body of the magnetic material detecting device (1), the iron piece (28) is strongly magnetized to attract the magnet (12) so that the latter is displaced toward the iron piece (28). Therefore, when the displacement of a magnet (14) is detected by the Hall IC (14), it is possible to detect the fact that the iron piece (28) has been positioned within the predetermined distance from the main body of the magnetic material detecting device (1).
    Type: Grant
    Filed: March 19, 2004
    Date of Patent: September 7, 2010
    Assignee: ASA Electronic Industry Co., Ltd.
    Inventor: Yukihiro Asa
  • Publication number: 20090191975
    Abstract: Problem to be Solved: A joint whose number of parts is reduced and whose production process is simplified. Means to Solve the Problems: The joint has spherical bodies (29a-29d), a circular cylindrical inner hub (20) in which hemispherical receiving sections (22a-22d) for receiving the spherical bodies (29a-29d) are formed in curved surfaces, and an outer hub (10) that has a receiving section (17) for receiving the inner hub (20) and also has longitudinal grooves (12a-12d) integrally formed with the receiving section (17) and in which the spherical bodies (29a-29d) received in the receiving sections (22a-22d) are received.
    Type: Application
    Filed: November 27, 2006
    Publication date: July 30, 2009
    Inventor: Yukihiro Asa
  • Publication number: 20090015243
    Abstract: [Problems] To provide a position sensor small enough to be contained in a groove formed in an air cylinder in which minimum stroke for fixing and differential travel are improved. [Means for Solving Problems] The position sensor comprises a Hall IC (50) for turning an electric signal on/off according to the position relative to a magnet provided on the piston of an air cylinder, a resin (60) such as a polyamide resin molded to cover the Hall IC (50), a stainless steel frame (30) defining the orientation and position of the Hall IC (50) in the resin (60), a part (40) fixed to the frame (30) in order to pass a screw for fixing the position sensor (1) to the air cylinder, conductors (18, 20, 22) connected to terminals (24, 26, 28) of the Hall IC (50) by soldering, rubber insulators (12, 14, 16) covering the conductors (18, 20, 22), and a rubber sheath part (10) for bundling the insulators (12, 14, 16).
    Type: Application
    Filed: April 14, 2005
    Publication date: January 15, 2009
    Inventor: Yukihiro Asa
  • Publication number: 20090001967
    Abstract: [Problem to be Solved] To specify motion range of piston 110 in air cylinder 100 with high accuracy. [Means for Solving The Problem] Position detecting devices 1a and 1b respectively comprise Hall IC switching on/off of output of electrical signal depending on relative position to magnet 140 placed so that moving direction of piston 110 crosses at right angle to the boundary of magnetic poles and resin covering said Hall IC while positioning it inside, Hall IC of the first position detecting device switches on/off of the output by magnetic force from a first magnetic pole and Hall IC of the second position detecting device switches on/off of the output by magnetic force from a second magnetic pole. The position detecting device 1b is mounted on the north pole side of the magnet 140 and the position detecting device 1a is mounted on the north pole side of the magnet 140.
    Type: Application
    Filed: May 30, 2006
    Publication date: January 1, 2009
    Inventor: Yukihiro Asa
  • Publication number: 20070188161
    Abstract: The purpose is to achieve size reduction, weight reduction and thickness reduction of a magnetic material detecting device (1). The device comprises a liearly displaceable magnet (12) and a Hall IC (14) for detecting the displacement of the magnet (12). When an iron piece (28) is positioned within a predetermined distance from the main body of the magnetic material detecting device (1), the iron piece (28) is strongly magnetized to attract the magnet (12) so that the latter is displaced toward the iron piece (28). Therefore, when the displacement of a magnet (14) is detected by the Hall IC (14), it is possible to detect the fact that the iron piece (28) has been positioned within the predetermined distance from the main body of the magnetic material detecting device (1).
    Type: Application
    Filed: March 19, 2004
    Publication date: August 16, 2007
    Inventor: Yukihiro Asa
  • Patent number: 7243439
    Abstract: A touch sensor using a Hall IC is provided. To this end, in a cantilever mechanism 15 of a parallel link by two plate springs 16, a coupling member 18 on the fixed side is fixed to a supporting block 24 which penetrates through the center of a plate spring 16 on a lower side and uprightly provided on a pedestal 22. A movable portion 28 on the free end side is a lightweight coupling member 19 provided by bend-processing an aluminum thin plate, to which a rare-earth magnet 25 is adhered. An elastic part 20a of a Hall IC supporting member 20 is fixed to the coupling member 18 on the fixed side, and a rigid part 20b with a rib 17a is supported by an adjusting rod 36 to fine-adjust relative position of a Hall IC 26 provided on the free end with respect to the magnet 25.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: July 17, 2007
    Assignee: ASA Electronics Industry Co., Ltd.
    Inventor: Yukihiro Asa
  • Publication number: 20050231195
    Abstract: A touch sensor using a Hall IC is provided. To this end, in a cantilever mechanism 15 of a parallel link by two plate springs 16, a coupling member 18 on the fixed side is fixed to a supporting block 24 which penetrates through the center of a plate spring 16 on a lower side and uprightly provided on a pedestal 22. A movable portion 28 on the free end side is a lightweight coupling member 19 provided by bend-processing an aluminum thin plate, to which a rare-earth magnet 25 is adhered. An elastic part 20a of a Hall IC supporting member 20 is fixed to the coupling member 18 on the fixed side, and a rigid part 20b with a rib 17a is supported by an adjusting rod 36 to fine-adjust relative position of a Hall IC 26 provided on the free end with respect to the magnet 25.
    Type: Application
    Filed: November 14, 2003
    Publication date: October 20, 2005
    Inventor: Yukihiro Asa
  • Publication number: 20040263296
    Abstract: An extremely compact low cost magnetic induction switch which may be activated by an extremely small operation force (approximately 1 g) has a movable member (2) and a coil spring (3) arranged inside a switch case (1), the spring coil (3) supporting the movable member (2), and the movable member protruding from an opening (1D) of an upper surface portion of the switch case (1). A hole IC (4) is arranged in a switch case (1). When the upper portion is pushed, a magnet (6) fixed to the movable member (2) moves downward so that an output signal of the hole IC (4) is changed from OFF to ON.
    Type: Application
    Filed: February 19, 2004
    Publication date: December 30, 2004
    Inventor: Yukihiro Asa
  • Patent number: 6771155
    Abstract: An ultra compact low cost magnetic induction switch which manages with an extremely small operation force has an movable member and a coil spring arranged inside a switch case, the spring coil supporting the movable member and the movable member protruding from an opening of an upper surface portion of the switch case. A hole IC is arranged in a switch case. When the upper portion is pushed, a magnet fixed to the movable member moves downward so that an output signal of a hole is changed from OFF to ON.
    Type: Grant
    Filed: September 18, 2002
    Date of Patent: August 3, 2004
    Assignee: ASA Electronic Industry Co., Ltd.
    Inventor: Yukihiro Asa
  • Publication number: 20030226749
    Abstract: A limit switch sealing anon-contact type microswitch has a stainless steel actuator lever subjected to nitriding processing which is cantilever supported on a housing upper portion by a plate spring made of polyimide. A non-contact type microswitch stored inside a housing cavity is slightly adjusted for upward and downward positions by a screw mechanism, and after that, is sealed inside the cavity by the filler such as silicon rubber and the like. A piston which transmits the movement of the actuator lever to the microswitch is supported air tight by the housing at the center of a flat conical bellows, and the limit switch including a return coil spring is highly sensitive, and is excellent in water resistance, oil resistance, abrasion resistance and durability.
    Type: Application
    Filed: September 20, 2002
    Publication date: December 11, 2003
    Inventor: Yukihiro Asa
  • Patent number: 6653583
    Abstract: A limit switch sealing a non-contact type microswitch has a stainless steel actuator lever subjected to nitriding processing which is cantilever supported on a housing upper portion by a plate spring made of polyimide. A non-contact type microswitch stored inside a housing cavity is slightly adjusted for upward and downward positions by a screw mechanism, and after that, is sealed inside the cavity by the filler such as silicon rubber and the like. A piston which transmits the movement of the actuator lever to the microswitch is supported air tight by the housing at the center of a flat conical bellows, and the limit switch including a return coil spring is highly sensitive, and is excellent in water resistance, oil resistance, abrasion resistance and durability.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: November 25, 2003
    Assignee: Asa Electronic Industry Co., Ltd.
    Inventor: Yukihiro Asa
  • Publication number: 20030085785
    Abstract: An ultra compact low cost magnetic induction switch which manages with an extremely small operation force has an movable member and a coil spring arranged inside a switch case, the spring coil supporting the movable member and the movable member protruding from an opening of an upper surface portion of the switch case. A hole IC is arranged in a switch case.
    Type: Application
    Filed: September 18, 2002
    Publication date: May 8, 2003
    Inventor: Yukihiro Asa
  • Patent number: 6440000
    Abstract: In order to provide a universal joint suitable as a small diameter joint capable of transmitting a large torque and having a high rotational precision and a high durability at a low cost, the universal joint is a kind of spring ring joints coupling a driven shaft with a driving shaft, for which an angle formed by their axis lines is not great, constructed so as to deal with deviations of the axis lines with respect to each other, owing to the fact that thin bending plates made of glass fiber reinforced polyimide bend. Linking boss portions supporting the bending plates and an intermediate disk are made of a high duty aluminium alloy for elongation having a high tenacity by die cast. A part of the linking boss portions and the intermediate disk is formed as protruding arbors for caulking and the bending plates are jointed directly therewith by caulking.
    Type: Grant
    Filed: August 8, 2000
    Date of Patent: August 27, 2002
    Assignee: Asa Electronic Industry Co., Ltd.
    Inventor: Yukihiro Asa
  • Patent number: 6179716
    Abstract: The present invention provides an eccentric shaft coupling having a high durability, capable of dealing with a great torque load and transmitting correctly rotational movement. Two pairs of protrusions of cylindrical boss flanges secured to extremities of two rotating shafts are linked through an intermediate disk with phases shifted by 90° from each other. The intermediate disk is made of a material having a satisfactory strength and rigidity. Each of the two pairs of protrusions is put slidably between plane portions of two liners, each having a partial cylindrical shape, whose cross section is enclosed by an arc and a secant, inserted dismountably into a cylindrical cavity along inner walls to be guided. Only the liners, each having a partial cylindrical shape, whose cross section is enclosed by an arc and a secant, are subjected to strong wear and therefore, when they are worn, they can be easily exchanged.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: January 30, 2001
    Assignee: Asa Electronic Industry Co., Ltd.
    Inventor: Yukihiro Asa
  • Patent number: 6095730
    Abstract: An inexpensive machine of small size is exclusively used for processing a key groove, requiring no skill. It is so constructed that a voltage is applied to an insulated work table through lead wires. A piece to be processed is reciprocated in left- and rightward directions. A center position of processing is calculated, based on digital displays of conduction signal positions, which left and right contact positions of a cutting tool inserted into a throughhole, in an inner wall of which the key groove should be formed, with the inner wall and a position of processing is set for the cutting tool by means of a scale, which position is fixed by using an eccentric lever. The work table is moved automatically intermittently with a cutting pitch set, linked with an air cylinder.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: August 1, 2000
    Assignee: Asa Electronic Industry Co., Ltd.
    Inventor: Yukihiro Asa