Patents by Inventor Masayoshi Takizawa

Masayoshi Takizawa 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: 10450684
    Abstract: Disclosed is a sewing machine which evaluates sewing quality using a stitch tightness index. During sewing operation, a used length of an upper thread per stitch is detected, and a stitch tightness index per sewn stitch is calculated on the basis of a stitch length per stitch defined by sewing pattern data, a fabric thickness of a sewing workpiece, and detected data of the used length of the upper thread. Then, notification is made which corresponds to the calculated stitch tightness index per sewn stitch (such as a visual display of the stitch tightness index). After that, acceptability/non-acceptability of the thread tightness per sewn stitch can be determined by comparing the calculated stitch tightness index per sewn stitch against a reference value, and a result of the determination can be notified.
    Type: Grant
    Filed: February 23, 2016
    Date of Patent: October 22, 2019
    Inventors: Isao Ohashi, Koichi Nakamura, Yoshichika Takizawa, Masayoshi Ono, Hirotsugu Uenishi
  • Patent number: 4385684
    Abstract: A coin selection device is of a type in which reference voltage is automatically adjusted in accordance with variation in the output level of a receiving coil in a standby mode. A oscillating coil and a receiving coil are disposed on both sides of a coin path. A peak of output level of the receiving coil and the reference voltage are compared each other in a comparator for detecting whether inserted coin is true or false. The output level of the receiving coil in the standby mode is stored so that variations in temperature and circuit parameters can be taken into account in the reference voltage level.
    Type: Grant
    Filed: July 10, 1980
    Date of Patent: May 31, 1983
    Assignee: Kabushiki Kaisha Nippon Coinco
    Inventors: Osamu Sugimoto, Masayoshi Takizawa
  • Patent number: 4364404
    Abstract: An inventory device which is used for a route-man to take all the coins out of the coin containing cylinders of an automatic vending machine. With the inventory device, the coin containing cylinders are caused one after another to dispense the coins merely by operating a single switch. The inventory device comprises: the single switch; a shift register; and a coin dispensation control section connected to the bit output of the shift register. The signal "1" is successively shifted in the shift register in response to the operation of the single switch, to operate the coin dispensation control section, thereby to dispense the coins out of the coin containing cylinders.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: December 21, 1982
    Assignee: Kabushiki Kaisha Nippon Coicno
    Inventors: Yukichi Hayashi, Masauuki Tamura, Osamu Sugimoto, Masayoshi Takizawa, Tatsujiro Nishioka, Masaki Akagawa, Yutaka Yokohda
  • Patent number: 4347924
    Abstract: The control system for a vending machine according to the invention is designed for preventing shortage of change coins to a maximum possible extent. According to the control system, as many coins of a low denomination as possible among coins inserted by a purchaser are collected for use as change coins. The control system further includes, in addition to main tubes to which inserted coins are automatically supplemented, auxiliary tubes to which coins are manually supplemented by a supervisor of the vending machine. A payout control between the main tubes and the auxiliary tubes is effected without providing a special switch for detecting change over between the main tubes and the auxiliary tubes.
    Type: Grant
    Filed: September 23, 1980
    Date of Patent: September 7, 1982
    Assignee: Nippon Coinco Co. Ltd.
    Inventors: Yukichi Hayashi, Masayuki Tamara, Osamu Sugimoto, Masayoshi Takizawa, Tatsujiro Nishioka
  • Patent number: 4108296
    Abstract: A coin receiving apparatus for a vending machine capable of accurately checking a coin diameter as well as other coin characteristics such as material and a surface pattern for discriminating a true coin from a false one and receiving the former and rejecting the latter. The diameter and other coin characteristics are detected by examining peak values of output waveshapes of coin detectors by means of a window circuit. A single window circuit is provided for each denomination and upper and lower limit values of the window circuit are automatically changed in accordance with a coin characteristic under examination. Frequencies of excitation signals of the various coin detectors are also automatically changed. If a plurality of coins are successively inserted in the coin receiving apparatus without a sufficient time interval, discrimination of the inserted coins is inhibited and the inserted coins are returned.
    Type: Grant
    Filed: March 22, 1977
    Date of Patent: August 22, 1978
    Assignee: Nippon Coinco Co., Ltd.
    Inventors: Yukichi Hayashi, Masayuki Tamura, Osamu Sugimoto, Masayoshi Takizawa, Tatsujiro Nishioka