Patents by Inventor Kyoui Ko

Kyoui Ko 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).

  • Impact dot printer with noise suppression
    Patent number: 5669725
    Abstract: An impact dot printer designed to reduce noise, including a first cover, a second cover, and an overlap portion therebetween. The first cover is located above a print section, and may include sound wave reflecting plates, sheet guide plates, and a sound absorbing member, each reflecting plate, each sheet guide plate, and the sound absorbing member being arranged close to the print section. The second cover is rotatable relative to the first cover and forms a printed sheet discharge path together with the first cover. The second cover also has sound wave reflecting plates and sheet guide plates. Each sheet guide plate is designed to be projected farther from the associated cover than the corresponding reflecting plate on said cover. The distance between adjacent sheet guide plates is made smaller than the width of the smallest sheet to be used in the printer.
    Type: Grant
    Filed: June 18, 1996
    Date of Patent: September 23, 1997
    Assignee: Seiko Epson Corporation
    Inventors: Osamu Koshiishi, Shigeki Mizuno, Keiichi Kubota, Katsuhiko Nishizawa, Motoyuki Niimura, Hiroshi Shirotori, Kyoui Ko
  • Impact dot printer with noise suppression
    Patent number: 5540511
    Abstract: An impact dot printer designed to reduce noise, including a first cover, a second cover, and an overlap portion therebetween. The first cover is located above a print section, and may include sound wave reflecting plates, sheet guide plates, and a sound absorbing member, each reflecting plate, each sheet guide plate, and the sound absorbing member being arranged close to the print section. The second cover is rotatable relative to the first cover and forms a printed sheet discharge path together with the first cover. The second cover also has sound wave reflecting plates and sheet guide plates. Each sheet guide plate is designed to be projected farther from the associated cover than the corresponding reflecting plate on said cover. The distance between adjacent sheet guide plates is made smaller than the width of the smallest sheet to be used in the printer.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: July 30, 1996
    Assignee: Seiko Epson Corporation
    Inventors: Osamu Koshiishi, Shigeki Mizuno, Keiichi Kubota, Katsuhiko Nishizawa, Motoyuki Niimura, Hiroshi Shirotori, Kyoui Ko