Patents by Inventor Eijiro Furuta

Eijiro Furuta 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: 10109306
    Abstract: A method corrects a head suspension by irradiating an objective part of the head suspension with a laser beam before or after mounting a read/write head on the head suspension. The method can precisely correct the head suspension even when correcting the head suspension a plurality of times. The method includes drawing, with the laser beam, a straight line of predetermined length on the objective part and repeating this process a plurality of times in such a way that the direction of a straight line drawn this time crosses the direction of a straight line drawn last time.
    Type: Grant
    Filed: January 22, 2009
    Date of Patent: October 23, 2018
    Assignee: NHK Spring Co., Ltd.
    Inventors: Eijiro Furuta, Isamu Ninomiya
  • Patent number: 9844789
    Abstract: A viscous liquid feed nozzle has a nozzle body having a thin and long hole with a front end serving as a feed port. The nozzle is used with a viscous liquid feed unit to feed a viscous liquid such as a viscous adhesive from the feed port. The nozzle has a lubricative plated layer at least on the inside and outside of the feed port. The lubricative plated layer is formed by electroless plating by immersing the nozzle in a plating tank containing a lubricative plating solution. A base end of the nozzle body may have a wide port. In this case, the lubricative plated layer is formed by immersing the nozzle body in the plating tank containing the lubricative plating solution so that the lubricative plating solution enters the wide port and by applying pressure or gravity to the lubricative plating solution in the wide port to pass the lubricative plating solution through the thin and long hole of the nozzle body and discharge the same from the feed port.
    Type: Grant
    Filed: January 14, 2014
    Date of Patent: December 19, 2017
    Assignee: NHK Spring Co., Ltd.
    Inventors: Shinpei Kakiuchi, Eijiro Furuta, Takashi Ando
  • Patent number: 8893646
    Abstract: A liquid application apparatus applies a liquid to an objective region. The apparatus includes a trap having an opening from which the liquid linearly appears, a feeder to feed the liquid to the trap, and an operation unit to position the trap on the objective region and bring the linearly appeared liquid at the trap into contact with the objective region, thereby linearly applying the liquid to the objective region. The apparatus is capable of linearly applying the liquid in a uniform thickness to the objective region.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: November 25, 2014
    Assignee: NHK Spring Co., Ltd.
    Inventors: Takashi Ando, Eijiro Furuta, Shinpei Kakiuchi
  • Patent number: 8890553
    Abstract: A method detects one or more cracks in a piezoelectric element interposed between a pair of electrodes and deforms according to a voltage applied thereto through the pair of electrodes. The method includes steps of applying a voltage at least at a resonance frequency of the piezoelectric element to the piezoelectric element through the pair of electrodes, measuring a dielectric tangent between the pair of electrodes under the applied voltage, and detecting if there are cracks in the piezoelectric element according to the measured dielectric tangent. The dielectric tangent of the piezoelectric element at the resonance frequency has a large peak or no peak depending on whether or not the piezoelectric element has cracks. Accordingly, the method easily and surely detects if the piezoelectric element has cracks according to the dielectric tangent of the piezoelectric element measured at the resonance frequency.
    Type: Grant
    Filed: November 2, 2011
    Date of Patent: November 18, 2014
    Assignee: NHK Spring Co., Ltd.
    Inventors: Eijiro Furuta, Hajime Arai
  • Patent number: 8859039
    Abstract: In a viscous liquid feed nozzle having a nozzle body provided with a thin and long hole with a front end serving as a feed port, a lubricative plated layer is provided by immersing the liquid feed nozzle in a plating tank containing a lubricative plating solution and forming, by electroless plating, the lubricative plated layer at least on the inside and outside of the feed port.
    Type: Grant
    Filed: November 18, 2011
    Date of Patent: October 14, 2014
    Assignee: NHK Spring Co., Ltd.
    Inventors: Shinpei Kakiuchi, Eijiro Furuta, Takashi Ando
  • Publication number: 20140124545
    Abstract: A viscous liquid feed nozzle has a nozzle body having a thin and long hole with a front end serving as a feed port. The nozzle is used with a viscous liquid feed unit to feed a viscous liquid such as a viscous adhesive from the feed port. The nozzle has a lubricative plated layer at least on the inside and outside of the feed port. The lubricative plated layer is formed by electroless plating by immersing the nozzle in a plating tank containing a lubricative plating solution. A base end of the nozzle body may have a wide port. In this case, the lubricative plated layer is formed by immersing the nozzle body in the plating tank containing the lubricative plating solution so that the lubricative plating solution enters the wide port and by applying pressure or gravity to the lubricative plating solution in the wide port to pass the lubricative plating solution through the thin and long hole of the nozzle body and discharge the same from the feed port.
    Type: Application
    Filed: January 14, 2014
    Publication date: May 8, 2014
    Applicant: NHK SPRING CO., LTD.
    Inventors: Shinpei KAKIUCHI, Eijiro FURUTA, Takashi ANDO
  • Patent number: 8662009
    Abstract: An adhesive application apparatus for applying a liquid adhesive to an object includes a regular application stage against which the object is placed for a regular application of the liquid adhesive to the object, a trial application stage to which a trial application of the liquid adhesive is carried out, an application unit relatively movable with respect to the regular application stage and trial application stage to carry out the regular application and trial application of the liquid adhesive, and a suction unit carrying out a suction operation of the liquid adhesive used in the trial application. The adhesive application apparatus smoothly carries out the trial application of the liquid adhesive without bothering the operation of an adhesive application line.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: March 4, 2014
    Assignee: NHK Spring Co., Ltd.
    Inventors: Takashi Ando, Eijiro Furuta, Akira Honma
  • Patent number: 8595917
    Abstract: A flexure 11 has a substrate 13 made of a thin conductive metal plate, a base insulating layer 31 made of flexible resin formed on the substrate, wiring patterns 15 formed on the base insulating layer and connected to a slider mount 17, and a cover insulating layer 33 formed over the wiring patterns. The flexure 11 is substantially coated with a conductive polymer layer 39 having a thickness in the range of 18 to 130 nm. The flexure 11 prevents electrostatic accumulation and ion migration that are trade-offs.
    Type: Grant
    Filed: May 24, 2012
    Date of Patent: December 3, 2013
    Assignee: NHK Spring Co., Ltd.
    Inventors: Hajime Arai, Eijiro Furuta, Koichi Kusakawa
  • Publication number: 20120231156
    Abstract: A flexure 11 has a substrate 13 made of a thin conductive metal plate, a base insulating layer 31 made of flexible resin formed on the substrate, wiring patterns 15 formed on the base insulating layer and connected to a slider mount 17, and a cover insulating layer 33 formed over the wiring patterns. The flexure 11 is substantially coated with a conductive polymer layer 39 having a thickness in the range of 18 to 130 nm. The flexure 11 prevents electrostatic accumulation and ion migration that are trade-offs.
    Type: Application
    Filed: May 24, 2012
    Publication date: September 13, 2012
    Applicant: NHK SPRING CO., LTD.
    Inventors: Hajime ARAI, Eijiro Furuta, Koichi Kusakawa
  • Patent number: 8230734
    Abstract: A leaf spring load measuring device of the present invention comprises a weighing mechanism, a measuring mechanism, a metering mechanism, and a control mechanism. The weighing mechanism applies a load heavier than a working load to a leaf spring, thereby bending the leaf spring in its thickness direction, and maintains the resulting state for a predetermined hold time. The measuring mechanism measures a load value of the leaf spring in a manner such that the spring is subjected to a load within a range of the working load. The metering mechanism meters a displacement of the spring when the load value is measured. The control mechanism controls the weighing mechanism, the metering mechanism, and the measuring mechanism, and has a timer function to meter the hold time.
    Type: Grant
    Filed: October 7, 2009
    Date of Patent: July 31, 2012
    Assignee: NHK Spring Co., Ltd.
    Inventors: Eijiro Furuta, Koichi Fukushima
  • Patent number: 8218267
    Abstract: A flexure has a substrate made of a thin conductive metal plate, a base insulating layer made of flexible resin formed on the substrate, wiring patterns formed on the base insulating layer and connected to a slider mount, and a cover insulating layer formed over the wiring patterns. The flexure is substantially coated with a conductive polymer layer having a thickness in the range of 18 to 130 nm. The flexure prevents electrostatic accumulation and ion migration.
    Type: Grant
    Filed: May 21, 2008
    Date of Patent: July 10, 2012
    Assignee: NHK Spring Co., Ltd.
    Inventors: Hajime Arai, Eijiro Furuta, Koichi Kusakawa
  • Publication number: 20120164325
    Abstract: In a viscous liquid feed nozzle having a nozzle body provided with a thin and long hole with a front end serving as a feed port, a lubricative plated layer is provided by immersing the liquid feed nozzle in a plating tank containing a lubricative plating solution and forming, by electroless plating, the lubricative plated layer at least on the inside and outside of the feed port.
    Type: Application
    Filed: November 18, 2011
    Publication date: June 28, 2012
    Applicant: NHK SPRING CO., LTD.
    Inventors: Shinpei Kakiuchi, Eijiro Furuta, Takashi Ando
  • Publication number: 20120146671
    Abstract: A method detects one or more cracks in a piezoelectric element interposed between a pair of electrodes and deforms according to a voltage applied thereto through the pair of electrodes. The method includes steps of applying a voltage at least at a resonance frequency of the piezoelectric element to the piezoelectric element through the pair of electrodes, measuring a dielectric tangent between the pair of electrodes under the applied voltage, and detecting if there are cracks in the piezoelectric element according to the measured dielectric tangent. The dielectric tangent of the piezoelectric element at the resonance frequency has a large peak or no peak depending on whether or not the piezoelectric element has cracks. Accordingly, the method easily and surely detects if the piezoelectric element has cracks according to the dielectric tangent of the piezoelectric element measured at the resonance frequency.
    Type: Application
    Filed: November 2, 2011
    Publication date: June 14, 2012
    Applicant: NHK SPRING CO., LTD.
    Inventors: Eijiro FURUTA, Hajime Arai
  • Patent number: 8196443
    Abstract: A method corrects a head suspension by irradiating an objective part of the head suspension with a laser beam. The method is capable of precisely correcting the head suspension even when correcting the head suspension a plurality of times. The method removes residual stress created by the preceding correction from the head suspension, and then, carries out the next correction. Accordingly, the method can precisely correct the objective part of the head suspension with a laser beam even if the objective part has once been irradiated with a laser beam in the preceding correction.
    Type: Grant
    Filed: January 23, 2009
    Date of Patent: June 12, 2012
    Assignee: NHK Spring Co., Ltd.
    Inventor: Eijiro Furuta
  • Publication number: 20110079351
    Abstract: A method of filling an adhesive into a gap includes steps of introducing one or more capsules containing the adhesive having an adhering function and a setting function into the gap, discharging the adhesive from the adhesive capsules by applying energy to the adhesive capsules in the gap, and setting the adhesive in the gap by applying energy to the discharged adhesive. The method can easily fill the adhesive 1 into the gap 7 without achieving a pressure-bonding process.
    Type: Application
    Filed: September 30, 2010
    Publication date: April 7, 2011
    Applicant: NHK SPRING CO., LTD.
    Inventor: Eijiro FURUTA
  • Publication number: 20110061589
    Abstract: A liquid application apparatus applies a liquid to an objective region. The apparatus includes a trap having an opening from which the liquid linearly appears, a feeder to feed the liquid to the trap, and an operation unit to position the trap on the objective region and bring the linearly appeared liquid at the trap into contact with the objective region, thereby linearly applying the liquid to the objective region. The apparatus is capable of linearly applying the liquid in a uniform thickness to the objective region.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 17, 2011
    Applicant: NHK SPRING CO., LTD.
    Inventors: Takashi Ando, Eijiro Furuta
  • Publication number: 20110061594
    Abstract: An adhesive application apparatus for applying a liquid adhesive to an object includes a regular application stage against which the object is placed for a regular application of the liquid adhesive to the object, a trial application stage to which a trial application of the liquid adhesive is carried out, an application unit relatively movable with respect to the regular application stage and trial application stage to carry out the regular application and trial application of the liquid adhesive, and a suction unit carrying out a suction operation of the liquid adhesive used in the trial application. The adhesive application apparatus smoothly carries out the trial application of the liquid adhesive without bothering the operation of an adhesive application line.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 17, 2011
    Applicant: NHK SPRING CO., LTD.
    Inventors: Takashi ANDO, Eijiro Furuta, Akira Honma
  • Publication number: 20100033874
    Abstract: A method corrects a head suspension by irradiating an objective part of the head suspension with a laser beam before or after mounting a read/write head on the head suspension. The method can precisely correct the head suspension even when correcting the head suspension a plurality of times. The method includes drawing, with the laser beam, a straight line of predetermined length on the objective part and repeating this process a plurality of times in such a way that the direction of a straight line drawn this time crosses the direction of a straight line drawn last time.
    Type: Application
    Filed: January 22, 2009
    Publication date: February 11, 2010
    Inventors: Eijiro Furuta, Isamu Ninomiya
  • Publication number: 20100018307
    Abstract: A leaf spring load measuring device of the present invention comprises a weighing mechanism, a measuring mechanism, a metering mechanism, and a control mechanism. The weighing mechanism applies a load heavier than a working load to a leaf spring, thereby bending the leaf spring in its thickness direction, and maintains the resulting state for a predetermined hold time. The measuring mechanism measures a load value of the leaf spring in a manner such that the spring is subjected to a load within a range of the working load. The metering mechanism meters a displacement of the spring when the load value is measured. The control mechanism controls the weighing mechanism, the metering mechanism, and the measuring mechanism, and has a timer function to meter the hold time.
    Type: Application
    Filed: October 7, 2009
    Publication date: January 28, 2010
    Applicant: NHK SPRING CO., LTD.
    Inventors: Eijiro FURUTA, Koichi Fukushima
  • Patent number: 7624631
    Abstract: A leaf spring load measuring device of the present invention comprises a weighing mechanism, a measuring mechanism, a metering mechanism, and a control mechanism. The weighing mechanism applies a load heavier than a working load to a leaf spring, thereby bending the leaf spring in its thickness direction, and maintains the resulting state for a predetermined hold time. The measuring mechanism measures a load value of the leaf spring in a manner such that the spring is subjected to a load within a range of the working load. The metering mechanism meters a displacement of the spring when the load value is measured. The control mechanism controls the weighing mechanism, the metering mechanism, and the measuring mechanism, and has a timer function to meter the hold time.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: December 1, 2009
    Assignee: NHK Spring Co., Ltd.
    Inventors: Eijiro Furuta, Koichi Fukushima