Patents by Inventor Hiroshi Yamasaki

Hiroshi Yamasaki 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).

  • Publication number: 20080216722
    Abstract: A sewing machine includes a rotating hook, a lower shaft rotating the rotating hook in synchronization with vertical movement of the needlebar, a lower shaft gear including a helical gear and slidably mounted on the lower shaft, a hook gear including a helical gear capable of mesh engagement with the lower shaft gear and mounted on the rotating hook, a drive force transmission mechanism supporting the lower shaft so that the lower shaft is axially moveable and transmits rotation of the lower shaft to the lower shaft gear, a cam mechanism axially moving the lower shaft gear to adjust at least one of a left encounter timing for seizure of the needle thread loop by the hook beak when the needle occupies a left needle location and a right encounter timing for seizure of the needle thread loop by the hook beak when the needle occupies a right needle location.
    Type: Application
    Filed: March 3, 2008
    Publication date: September 11, 2008
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hiroshi YAMASAKI
  • Patent number: 7373570
    Abstract: A scan separator in a large scale integration device is made more extensive to suppress an increase in the circuit scale of the entire device. In one embodiment, a scan separator is provided for every two signal lines interconnecting two combinatorial circuit blocks. Each scan separator includes a selector and a flip flop for constituting a scan path. Another selector is provided for selecting one of the two signal lines. As an input selector signal for the selector that selects one of the two signal lines, data for switching controlling are used, which are transferred from a test input terminal over the scan path and latched by the flip flop. The data for switching controlling are initially transferred over the scan path to each flip flop. The selector that selects one of the two signal lines is switched in accordance with the switching controlling data stored in the flip flop. The switching controlling data may be interchanged to select the either of the two signal lines.
    Type: Grant
    Filed: December 19, 2005
    Date of Patent: May 13, 2008
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Hiroyuki Hanamori, Kenji Asai, Hiroshi Yamasaki, Osamu Endoh
  • Publication number: 20080050295
    Abstract: A method of recovering valuable materials from lithium batteries wherein a lithium/transition metal composite oxide is used as a positive electrode active material. In this disposal method, a sheeted positive electrode having a positive electrode active material disposed on a positive electrode collector is immersed in an oxalic acid solution. By virtue of this oxalic acid treatment (step 240), any lithium element contained in the positive electrode active material can be leached into the oxalic acid solution. Using oxygen gas produced by a reaction between the positive electrode active material and oxalic acid, attachments, such as the positive electrode active material, can be self-detached from the positive electrode collector. The transition metal element contained in the positive electrode active material is converted by the oxalic acid treatment to insoluble transition metal compounds (oxalate, oxide, etc.).
    Type: Application
    Filed: June 14, 2005
    Publication date: February 28, 2008
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshimasa Uchida, Yoshimi Hirata, Kazutaka Arimura, Hiroshi Yamasaki
  • Patent number: 7325501
    Abstract: A presser foot lifting lever for a sewing machine includes a lever body rotatably supported about a horizontal shaft center by a head; a handle operated by the user; and a connecting portion connecting the handle to the lever body. The connecting portion allows the handle to be switched relative to the lever body between a predetermined active position taken to allow user operation and a predetermined retracted position taken when not in use.
    Type: Grant
    Filed: February 1, 2007
    Date of Patent: February 5, 2008
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Hiroshi Yamasaki
  • Patent number: 7299757
    Abstract: A zigzag sewing machine including a needle bar having a sewing needle attached thereto, a needle swing mechanism that laterally swings the needle bar, a needle plate disposed on an upper surface of a sewing machine bed, and a feed dog constituted by a first to fourth teeth that feed a workpiece cloth by projecting/retracting from the needle plate. The zigzag sewing machine further includes a feed dog longitudinal transfer mechanism that longitudinally moves the feed dog, a feed dog lateral transfer mechanism that laterally moves the feed dog, and a control unit that controls the feed dog lateral transfer mechanism so that one of the teeth is associated with a needle drop point of the sewing needle.
    Type: Grant
    Filed: June 6, 2006
    Date of Patent: November 27, 2007
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tomoyasu Niizeki, Hiroshi Yamasaki
  • Publication number: 20070206371
    Abstract: A workpiece cloth positioning guide device for a sewing machine includes a projector which projects a sewing reference mark onto an upper side of workpiece cloth placed on a sewing bed of the sewing machine. The projector projects light emitted from the light source onto a needle drop reference point of the sewing needle of the sewing machine from obliquely above so that a sewing reference mark including a circle having a center at the needle drop reference point on the upper side of the workpiece cloth and the sewing reference mark guides the workpiece cloth when the workpiece cloth is positioned in sewing.
    Type: Application
    Filed: February 12, 2007
    Publication date: September 6, 2007
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hiroshi Yamasaki
  • Publication number: 20070204777
    Abstract: A presser foot lifting lever for a sewing machine includes a lever body rotatably supported about a horizontal shaft center by a head; a handle operated by the user; and a connecting portion connecting the handle to the lever body. The connecting portion allows the handle to be switched relative to the lever body between a predetermined active position taken to allow user operation and a predetermined retracted position taken when not in use.
    Type: Application
    Filed: February 1, 2007
    Publication date: September 6, 2007
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Hiroshi Yamasaki
  • Patent number: 7194969
    Abstract: A needle plate includes a first needle plate fixed to a sewing machine bed and having a needle hole through which a sewing needle is penetratable and a square hole through which a feed dog for feeding a workpiece cloth is projected and retracted; a second needle plate positioned in front of the first needle plate and above a horizontal hook mechanism and detachably attached to the first needle plate; an engagement mechanisms in which the second needle plate is slid into engagement with the first needle plate; and a disengagement mechanism for disengagement of the engagement mechanisms.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: March 27, 2007
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Tomoyasu Niizeki, Hiroshi Yamasaki
  • Patent number: 7178473
    Abstract: A sewing machine includes a needle bar reciprocally movable up and down, a thread take-up lever reciprocally swingable up and down, a thread supply which supplies a needle thread to the needle bar carrying the sewing needle, a plurality of thread guides including the thread take-up lever, an automatic threading apparatus automatically carrying the needle thread extending from the thread supply and passing the needle thread through the thread guides including the thread take-up lever, a first preparatory path formed for threading so that the needle thread extending from the thread supply can be passed through the thread guides by the automatic threading apparatus, and a second preparatory path formed for threading so that the needle thread extending from the thread supply can manually be passed through the thread guides, The thread take-up lever is displaced within a range of reciprocal swing so that threading is possible for at least one of the first and second preparatory paths.
    Type: Grant
    Filed: June 1, 2005
    Date of Patent: February 20, 2007
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Noboru Mizuno, Shinya Fujihara, Hiroshi Yamasaki, Yoshiyuki Uyama
  • Patent number: 7159057
    Abstract: An evaluation chip is disclosed whose interrupt priority order can be changed freely. A plurality of interrupt priority order determining circuits 20-1 to 2-4 perform a logical operation on a plurality of signals S11 to S14 used for interrupt priority order modifying control that are applied from outside and a plurality of interrupt signals S31-1 to S31-4, and output interrupt modifying signals S24-1 to S24-4. A plurality of interrupt modules 30-1 to 30-4 perform a logical AND operation on the plurality of signals S24-1 to S24-4 and a plurality of interrupt request signals S15-1 to S15-4 that are applied from outside, and output the signals S31-1 to S31-4. An address generating circuit 40 encodes the plurality of signals S31-1 to S31-4 and generates interrupt vector addresses 40. A microcomputer core 50 executes interrupt instructions that have been fetched from an external program memory 100, based on the addresses S40.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: January 2, 2007
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Hiroshi Yamasaki, Kenichiro Nagatomo
  • Publication number: 20060283365
    Abstract: A zigzag sewing machine including a needle bar having a sewing needle attached thereto, a needle swing mechanism that laterally swings the needle bar, a needle plate disposed on an upper surface of a sewing machine bed, and a feed dog constituted by a first to fourth teeth that feed a workpiece cloth by projecting/retracting from the needle plate. The zigzag sewing machine further includes a feed dog longitudinal transfer mechanism that longitudinally moves the feed dog, a feed dog lateral transfer mechanism that laterally moves the feed dog, and a control unit that controls the feed dog lateral transfer mechanism so that one of the teeth is associated with a needle drop point of the sewing needle.
    Type: Application
    Filed: June 6, 2006
    Publication date: December 21, 2006
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tomoyasu Niizeki, Hiroshi Yamasaki
  • Publication number: 20060213410
    Abstract: A needle plate includes a first needle plate fixed to a sewing machine bed and having a needle hole through which a sewing needle is penetratable and a square hole through which a feed dog for feeding a workpiece cloth is projected and retracted; a second needle plate positioned in front of the first needle plate and above a horizontal hook mechanism and detachably attached to the first needle plate; an engagement mechanisms in which the second needle plate is slid into engagement with the first needle plate; and a disengagement mechanism for disengagement of the engagement mechanisms.
    Type: Application
    Filed: March 16, 2006
    Publication date: September 28, 2006
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Tomoyasu Niizeki, Hiroshi Yamasaki
  • Publication number: 20060136796
    Abstract: A scan separator in a large scale integration device is made intensive to suppress the circuit scale of the entire device from increasing. A scan separator is provided for every two signal lines interconnecting two combinatorial circuit blocks. Each scan separator includes one selector, a flip flop for constituting a scan path, and another selector for selecting one of the two signal lines. As an input selector signal for the other selector, data for switching controlling are used, which are transferred from a test input terminal over the scan path and latched by the flip flop. The data for switching controlling are initially transferred over the scan path to each flip flop. The other selector is switched in accordance with the switching controlling data stored in the flip flop to select one of the two signal lines. The switching controlling data may be interchanged to select the other signal line.
    Type: Application
    Filed: December 19, 2005
    Publication date: June 22, 2006
    Inventors: Hiroyuki Hanamori, Kenji Asai, Hiroshi Yamasaki, Osamu Endoh
  • Publication number: 20060041941
    Abstract: The present invention relates to a messaging virus protection program and the like for dealing with messaging viruses transmitted along with the movement of electronic information. This messaging virus protection program causes a computer to execute the steps of judging whether or not processing is to be performed in a warning mode based on information which either warns or does not warn of a new type of messaging virus, determining whether or not there is a danger of viral infection in case of a warning mode, storing the received electronic information in cases where it is determined that there is a danger, and delivering the received electronic information in cases where it is determined that there is no danger and, in case of not the warning mode, performing processing for the received electronic information based on the characteristics of known messaging viruses.
    Type: Application
    Filed: October 20, 2005
    Publication date: February 23, 2006
    Inventors: Norihiko Suzuki, Hiroshi Yamasaki
  • Publication number: 20050268830
    Abstract: A sewing machine includes a needle bar reciprocally movable up and down, a thread take-up lever reciprocally swingable up and down, a thread supply which supplies a needle thread to the needle bar carrying the sewing needle, a plurality of thread guides including the thread take-up lever, an automatic threading apparatus automatically carrying the needle thread extending from the thread supply and passing the needle thread through the thread guides including the thread take-up lever, a first preparatory path formed for threading so that the needle thread extending from the thread supply can be passed through the thread guides by the automatic threading apparatus, and a second preparatory path formed for threading so that the needle thread extending from the thread supply can manually be passed through the thread guides, The thread take-up lever is displaced within a range of reciprocal swing so that threading is possible for at least one of the first and second preparatory paths.
    Type: Application
    Filed: June 1, 2005
    Publication date: December 8, 2005
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Noboru Mizuno, Shinya Fujihara, Hiroshi Yamasaki, Yoshiyuki Uyama
  • Publication number: 20050216636
    Abstract: An evaluation chip is disclosed whose interrupt priority order can be changed freely. A plurality of interrupt priority order determining circuits 20-1 to 2-4 perform a logical operation on a plurality of signals S11 to S14 used for interrupt priority order modifying control that are applied from outside and a plurality of interrupt signals S31-1 to S31-4, and output interrupt modifying signals S24-1 to S24-4. A plurality of interrupt modules 30-1 to 30-4 perform a logical AND operation on the plurality of signals S24-1 to S24-4 and a plurality of interrupt request signals S15-1 to S15-4 that are applied from outside, and output the signals S31-1 to S31-4. An address generating circuit 40 encodes the plurality of signals S31-1 to S31-4 and generates interrupt vector addresses 40. A microcomputer core 50 executes interrupt instructions that have been fetched from an external program memory 100, based on the addresses S40.
    Type: Application
    Filed: November 16, 2004
    Publication date: September 29, 2005
    Applicant: Oki Electric Co., Ltd.
    Inventors: Hiroshi Yamasaki, Kenichiro Nagatomo
  • Publication number: 20050196996
    Abstract: There is provided a component mounting inspecting apparatus which can automatically set a solder bridge inspection region (an inspection point), and output an optimum inspection result of a solder bridge. The component mounting board inspecting apparatus for inspecting a solder bridge of an electronic circuit board, in which a plurality of electrode pads are formed at predetermined spaced intervals, and cream solder is applied on the electrode pads, includes mechanism for automatically determining a distance between adjacent electrode pads; and mechanism for automatically setting a solder bridge inspection point if the distance between the adjacent electrode pads is equal or shorter than a threshold value.
    Type: Application
    Filed: January 24, 2005
    Publication date: September 8, 2005
    Applicant: Sony Corporation
    Inventors: Hiroshi Yamasaki, Hiroshi Ootsuki, Yutaka Igarashi
  • Patent number: 6602733
    Abstract: A method for fabricating an electric circuit device able to ensure bonding strength and bond bumps without occurrence of cratering or other mechanical damages.
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: August 5, 2003
    Assignee: Sony Corporation
    Inventors: Shinji Iwahashi, Junichi Sekine, Hiroshi Yamasaki
  • Patent number: 6576446
    Abstract: Disclosed is a process for producing a high &agr;G-AA content product, which comprises the steps of: contacting a solution as a material solution, containing &agr;G-AA, L-ascorbic acid, and a saccharide(s), with an anion exchange resin packed in a column to adsorb the &agr;G-AA and L-ascorbic acid on the anion exchanger; washing the anion exchanger with water to remove the saccharide(s) therefrom; feeding to the column an aqueous solution, as an eluent, of an acid and/or a salt with a concentration of less than 0.5 N to fractionate a fraction rich in 2-O-&agr;-D-glucopyranosyl-L-ascorbic acid and a fraction rich in L-ascorbic acid; and collecting the former fraction.
    Type: Grant
    Filed: June 8, 2001
    Date of Patent: June 10, 2003
    Assignee: Kabushiki Kaisha Hayashibara Seibutsu Kagaku Kenkyujo
    Inventors: Hiroshi Yamasaki, Koichi Nishi, Toshio Miyake
  • Patent number: RE38450
    Abstract: A glass panel for a cathode ray tube including a substantially rectangular face portion and a skirt portion. Further constituting a side wall of the face portion, a compressive stress layer having a thickness of at least {fraction (1/10)} of the thickness of the face portion, is formed on each of the inner and outer surfaces of a useful screen area of the face portion, so as to satisfy 0.4≦&sgr;di/&sgr;ci≦1.0, where &sgr;ci is the compressive stress on the inner surface at the center of the useful screen area, and &sgr;di is the compressive stress on the inner surface in the vicinity of ends of diagonal axial lines of the useful screen area.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: March 2, 2004
    Assignee: Asahi Glass Company, Ltd.
    Inventors: Naoya Shimizu, Hiroshi Yamasaki