Patents by Inventor Hiroshi Maeshima

Hiroshi Maeshima 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).

  • Automatic document feeder having a document shunting path
    Patent number: 6796559
    Abstract: In an automatic document feeder for use in an image forming device such as copy machine and facsimile machine: a document shunting path for temporarily shunting a document is provided at an upstream side of a document reading portion; in a different-size mixed mode where different sizes of documents are placed in a mixed manner, the leading edge and rear edge of the document are detected by a sensor during conveyance of the document in the direction toward the document reading portion, so that the length of the document is detected; thereafter the document is conveyed in the reverse direction so that the rear edge of the document is shunted into the document shunting path; and thereafter the document is again conveyed in the forward direction to conduct reading. Thus, it becomes unnecessary to provide a longer conveyance path for detecting the length of the documents, so that the size of the feeder itself can be reduced.
    Type: Grant
    Filed: February 21, 2003
    Date of Patent: September 28, 2004
    Assignees: Konica Corporation, Nisca Corporation
    Inventors: Kazuhiro Hirota, Hiroshi Nakagomi, Yasuhito Watanabe, Hiroshi Maeshima, Kazunori Yoshioka
  • Automatic document feeder having a document shunting path
    Publication number: 20030160386
    Abstract: In an automatic document feeder for use in an image forming device such as copy machine and facsimile machine: a document shunting path for temporarily shunting a document is provided at an upstream side of a document reading portion; in a different-size mixed mode where different sizes of documents are placed in a mixed manner, the leading edge and rear edge of the document are detected by a sensor during conveyance of the document in the direction toward the document reading portion, so that the length of the document is detected; thereafter the document is conveyed in the reverse direction so that the rear edge of the document is shunted into the document shunting path; and thereafter the document is again conveyed in the forward direction to conduct reading. Thus, it becomes unnecessary to provide a longer conveyance path for detecting the length of the documents, so that the size of the feeder itself can be reduced.
    Type: Application
    Filed: February 21, 2003
    Publication date: August 28, 2003
    Applicant: Konica Corporation
    Inventors: Kazuhiro Hirota, HIroshi Nakagomi, Yasuhito Watanabe, Hiroshi Maeshima, Kazunori Yoshioka
  • Automatic document feeder having a document shunting path
    Patent number: 6585258
    Abstract: In an automatic document feeder for use in an image forming device such as copy machine and facsimile machine: a document shunting path for temporarily shunting a document is provided at an upstream side of a document reading portion; in a different-size mixed mode where different sizes of documents are placed in a mixed manner, the leading edge and rear edge of the document are detected by a sensor during conveyance of the document in the direction toward the document reading portion, so that the length of the document is detected; thereafter the document is conveyed in the reverse direction so that the rear edge of the document is shunted into the document shunting path; and thereafter the document is again conveyed in the forward direction to conduct reading. Thus, it becomes unnecessary to provide, a longer conveyance path for detecting the length of the documents, so that the size of the feeder itself can be reduced.
    Type: Grant
    Filed: December 12, 2000
    Date of Patent: July 1, 2003
    Assignees: Konica Corporation, Nisca Corporation
    Inventors: Kazuhiro Hirota, Hiroshi Nakagomi, Yasuhito Watanabe, Hiroshi Maeshima, Kazunori Yoshioka
  • Automatic document feeder having a document shunting path
    Patent number: 6145834
    Abstract: In an automatic document feeder for use in an image forming device such as copy machine and facsimile machine: a document shunting path for temporarily shunting a document is provided at an upstream side of a document reading portion; in a different-size mixed mode where different sizes of documents are placed in a mixed manner, the leading edge and rear edge of the document are detected by a sensor during conveyance of the document in the direction toward the document reading portion, so that the length of the document is detected; thereafter the document is conveyed in the reverse direction so that the rear edge of the document is shunted into the document shunting path; and thereafter the document is again conveyed in the forward direction to conduct reading. Thus, it becomes unnecessary to provide a longer conveyance path for detecting the length of the documents, so that the size of the feeder itself can be reduced.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: November 14, 2000
    Assignees: Konica Corporation, Nisca Corporation
    Inventors: Kazuhiro Hirota, Hiroshi Nakagomi, Yasuhito Watanabe, Hiroshi Maeshima, Kazunori Yoshioka