Patents by Inventor Motoyuki Niimura

Motoyuki Niimura 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).

  • Printer
    Patent number: 6336758
    Abstract: A printer wherein a drive roller of a pair of sheet discharge rollers is made of rubber and a driven roller of the pair of sheet discharge rollers is made of synthetic resin; the leading end of a sheet is guided so as to be abutted against the drive roller earlier than the driven roller; the sheet that is in the course of being discharged is guided by a sheet discharge tray so as to come in slidable contact with an edge portion that is on a print head side of a sheet discharge opening. As a result, the printer can provide satisfactory printing conditions quickly with a simple structure and reduce noise leaking from the sheet discharge opening.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: January 8, 2002
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Ishida, Shigeki Mizuno, Kenjiro Murakami, Toshikazu Kotaka, Tatsumi Tsuboki, Motoyuki Niimura, Norio Horaguchi, Yoshiaki Nakayama
  • Printer having noise noise reduction structure
    Patent number: 5913626
    Abstract: A printer wherein a drive roller of a pair of sheet discharge rollers is made of rubber and a driven roller of the pair of sheet discharge rollers is made of synthetic resin; the leading end of a sheet is guided so as to be abutted against the drive roller earlier than the driven roller; the sheet that is in the course of being discharged is guided by a sheet discharge tray so as to come in slidable contact with an edge portion that is on a print head side of a sheet discharge opening. As a result, the printer can provide satisfactory printing conditions quickly with a simple structure and reduce noise leaking from the sheet discharge opening.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: June 22, 1999
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Ishida, Shigeki Mizuno, Kenjiro Murakami, Toshikazu Kotaka, Tatsumi Tsuboki, Motoyuki Niimura, Norio Horaguchi, Yoshiaki Nakayama
  • 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