Patents by Inventor Eiji Murakami

Eiji Murakami 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: 5762011
    Abstract: An embroidering sewing machine which is electronically controlled is described, wherein a plurality of addresses of stitch data for controlling the stitching operation are divided into a plurality of blocks each of which comprises N number of stitch data each of which is successively elected as the initial stitch data of each block and provides a distance between the adjacent stitches. The speed of the vertical movement of the machine needle is decided by setting a specific rate of speed corresponding to the maximum rate of distance of each block. The number N may be optionally selected to avoid the abrupt change of speed which may otherwise occur depending upon the embroidery patterns to be stitched.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: June 9, 1998
    Assignee: Janome Sewing Machine Co., Ltd.
    Inventor: Eiji Murakami
  • Patent number: 5707098
    Abstract: A door structure for a vehicle capable of increasing its capability of protecting a passenger on the vehicle without increasing the thickness of the pad. The door structure is provided with a door body including an inner panel and an outer panel, reinforcements secured to each of the panels and a pad attached to the inner panel to protect the passenger. In the longitudinal direction of the vehicle, each of the reinforcements has its rear end positioned in front of the passenger. Because each panel has a higher rigid part with the reinforcement and a lower rigid part without the reinforcements, when an external force is exerted on the door body, it begins to deform in the vicinity of the rear end of the reinforcement, whereby it is possible to absorb the energy of the external force efficiently without injuring the passenger.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: January 13, 1998
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Katsuyoshi Uchida, Eiji Murakami
  • Patent number: 5568068
    Abstract: A buffer circuit with driving current adjusting function is provided which may automatically set a driving current characteristics of a buffer to the most suitable value according to a system where the driving current is to be applied.
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: October 22, 1996
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Mitsubishi Electric Semiconductor Software Co., Ltd.
    Inventors: Yoshiyuki Ota, Ichiro Tomioka, Eiji Murakami
  • Patent number: 5466031
    Abstract: A door structure for a vehicle capable of increasing its capability of protecting a passenger on the vehicle without increasing the thickness of the pad. The door structure is provided with a door body including an inner panel and an outer panel, reinforcements secured to each of the panels and a pad attached to the inner panel to protect the passenger. In the longitudinal direction of the vehicle, each of the reinforcements has its rear end positioned in front of the passenger. Because each panel has a higher rigid part with the reinforcement and a lower rigid part without the reinforcements, when an external force is exerted on the door body, it begins to deform in the vicinity of the rear end of the reinforcement, whereby it is possible to absorb the energy of the external force efficiently without injuring the passenger.
    Type: Grant
    Filed: June 16, 1994
    Date of Patent: November 14, 1995
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Katsuyoshi Uchida, Eiji Murakami
  • Patent number: 5355629
    Abstract: A door for a vehicle is assembled by joining three modules together to facilitate the assembly process. The three modules are an outer module including an outer panel, a window regulator module including a window pane and a window regulator, and an inner module including an interior member. The window regulator module is preliminarily assembled as an independent unit, so that it is easy to adjust the open and closed positions and the movement of the window pane. These modules are joined by fastening means extending along the direction of the thickness of the door, so that the assembly operation is made easier.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: October 18, 1994
    Assignee: Nissan Motor Company, Ltd.
    Inventors: Koichi Kimura, Kenichi Hirooka, Hiroshi Tsuchiya, Akito Tozuka, Shuji Yamagata, Kiyoto Matsuzaki, Kensuke Uchida, Toshiaki Shiraiwa, Sumio Inami, Eiji Murakami, Tetsuji Nasu, Takayuki Sano
  • Patent number: 4953486
    Abstract: Disclosed is an electronic zigzag sewing machine adapted to produce one or more of buttonhole stitch patterns, including several parts to be sequentially stitched, in response to stitch control data stored in a memory unit. The sewing machine includes a vertically extending presser bar, to the lower end of which there is detachably mounted a presser foot for exerting a downwardly directing pressure onto a workpiece. The presser foot is provided with a photo-sensor capable of detecting a longitudinal end of a buttonhole during stitching operation of the buttonhole stitch pattern; a step-up timing, at which one part of the buttonhole stitch pattern proceeds to the next part, can be automatically detected so that the buttonhole stitch pattern can be produced step by step without necessity of manual operation.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: September 4, 1990
    Inventors: Yasuro Sano, Akira Orii, Eiji Murakami
  • Patent number: 4947772
    Abstract: A sewing machine and a method of controlling operation of the same wherein reading out of a selected finish-up stitch pattern is effected substantially simultaneously with generation of rotation speed reduction signal when an actual rotation speed of the machine is lower than the reference rotation speed, and when a rotation speed is reduced to the reference rotation speed upon the actual speed of the machine being higher than the reference rotation speed.
    Type: Grant
    Filed: November 2, 1988
    Date of Patent: August 14, 1990
    Assignee: Janome Sewing Machine Co. Ltd.
    Inventors: Eiji Murakami, Akira Orii
  • Patent number: 4677925
    Abstract: A stepping motor is initially set while it passes through a full moving range at comparatively low pulse frequency, and it is discriminated whether the motor moves accurately in response to driving pulses between detecting points until the motor passes one detecting point and again reaches this detecting point.
    Type: Grant
    Filed: July 31, 1985
    Date of Patent: July 7, 1987
    Assignee: Janome Sewing Machine Co. Ltd.
    Inventors: Eiji Murakami, Yasuro Sano, Tohru Hyodo
  • Patent number: 4651663
    Abstract: A stitch condition setting device for an electronically controlled sewing machine that forms stitch patterns and has a reciprocating needle, a fabric feed and an electronic memory to store stitch control signals, the stitch condition setting device having an apparatus for separately designating a change in a needle amplitude amount and a fabric feed amount in accordance with a selected stitch pattern, an apparatus for switching the designating apparatus between designating the change in needle amplitude amount and designating the change in fabric feed amount; and an apparatus responsive to the designating apparatus and the switching apparatus for changing the needle amplitude amount and the fabric feed amount in accordance with the selected stitch pattern.
    Type: Grant
    Filed: December 12, 1984
    Date of Patent: March 24, 1987
    Assignee: Janome Sewing Machine Co., Ltd.
    Inventors: Eiji Murakami, Toru Hyodo, Haruhiko Tanaka
  • Patent number: 4620497
    Abstract: A position detecting device of a contacting system is incorporated in a computerized sewing machine, which actuates in relation with an output shaft of a pulse motor at an initial setting during sewing operation of a feed control pulse motor or an amplitude control pulse motor, outside of the control region of each of said pulse motors, and the pulse motors are initially set within said control regions by signals from the position detecting device. Therefore a device for initially setting the computerized sewing machine may be provided which is excellent in durability and could promise a stable initial setting for a long period of time.
    Type: Grant
    Filed: October 25, 1984
    Date of Patent: November 4, 1986
    Assignee: Janome Sewing Machine Co., Ltd.
    Inventors: Yasuro Sano, Haruhiko Tanaka, Eiji Murakami
  • Patent number: 4599959
    Abstract: In stitching operation with an electronic sewing machine storing a plurality of stitch control data, a fabric feeding amount for a specific pattern composed of densely arranged zigzag stitches is automatically controlled in a selective one of normal mode and alternate mode. The fabric feeding amount is usually controlled in the normal mode whereby a fabric feeding amount of a predetermined value or a manually selected value is constantly applied to every stitch of the pattern. The normal feed control mode is switched to the alternate feed control mode when the operator selects a fabric feeding amount smaller than a predetermined critical value, in which case the selected pattern composed of densely arranged zigzag stitches is produced with the fabric being fed in an amount double the selected value each time an alternate one of the zigzag stitches is produced.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: July 15, 1986
    Assignee: Janome Sewing Machine Industry Co., Ltd.
    Inventors: Yasuro Sano, Eiji Murakami