Patents by Inventor Tetsuya Hiruma

Tetsuya Hiruma 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: 7690757
    Abstract: A head capping member for capping an ejection face of a liquid ejecting head which face is provided with a nozzle for ejecting a liquid drop is provided, which includes a contact part which contacts the ejection face of the head and is made of an elastic member and a recess which forms a closed space together with the ejection head when the contact part contacts the ejection head, wherein a flat part is formed around the recess and an absorbing member is provided on the flat part so as to cover the recess.
    Type: Grant
    Filed: February 21, 2007
    Date of Patent: April 6, 2010
    Assignee: Ricoh Company, Ltd.
    Inventors: Masanori Kusunoki, Nobuyuki Akaishi, Tetsuya Hiruma
  • Patent number: 7654634
    Abstract: An image forming apparatus that has a carriage with a recording head having a nozzle for ejecting an ink includes a capping member configured to cover the nozzle of the recording head, a locking member configured to lock the carriage at a predetermined position, and an interlocking mechanism configured to perform one of locking and unlocking the carriage with the locking member according to one operation of contacting and separating the nozzle with the capping member.
    Type: Grant
    Filed: July 24, 2006
    Date of Patent: February 2, 2010
    Assignee: Ricoh Company, Ltd.
    Inventor: Tetsuya Hiruma
  • Publication number: 20080291240
    Abstract: An image forming apparatus is disclosed. The image forming apparatus executes operations of idle ink ejection in which ink droplets not contributing to forming an image on a recording medium are ejected. When the operations of the idle ink ejection are executed before staring to print an image on a recording medium, the ink droplets are ejected into a cap member; in a case where the operations of the idle ink ejection are executed when a first predetermined period has passed after the last ejection of the ink droplets from the recording head, the ink droplets are ejected into an idle ink droplet receiving section; and in a case where the operations of the idle ink ejection are executed when a second predetermined period longer than the first predetermined period has passed as one of cleaning operations of the recording head, the ink droplets are ejected into the cap member.
    Type: Application
    Filed: May 19, 2008
    Publication date: November 27, 2008
    Applicant: Richo Company, Ltd.
    Inventors: Naoto OHSAKO, Toshitaka Osanai, Tetsuya Hiruma, Nobuyuki Akaishi, Daisuke Nakamura
  • Patent number: 7377627
    Abstract: An ink cartridge includes an ink containing part and first through third housings. The ink containing part includes a holding member with an ink supply opening part and a sealed ink filling opening part. The first housing includes a holding part holding the holding member of the ink containing part. The second housing has an outline analogous to that of the first housing. The third housing is fitted to the side of the assembly of the first and second housings from which side ink is supplied. The first, second, and third housings are assemblable and disassemblable.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: May 27, 2008
    Assignee: Ricoh Company, Ltd.
    Inventors: Masakazu Muranaka, Tetsuya Hiruma
  • Publication number: 20070206048
    Abstract: A head capping member for capping an ejection face of a liquid ejecting head which face is provided with a nozzle for ejecting a liquid drop is provided, which includes a contact part which contacts the ejection face of the head and is made of an elastic member and a recess which forms a closed space together with the ejection head when the contact part contacts the ejection head, wherein a flat part is formed around the recess and an absorbing member is provided on the flat part so as to cover the recess.
    Type: Application
    Filed: February 21, 2007
    Publication date: September 6, 2007
    Inventors: Masanori Kusunoki, Nobuyuki Akaishi, Tetsuya Hiruma
  • Publication number: 20070019029
    Abstract: An image forming apparatus that has a carriage with a recording head having a nozzle for ejecting an ink includes a capping member configured to cover the nozzle of the recording head, a locking member configured to lock the carriage at a predetermined position, and an interlocking mechanism configured to perform one of locking and unlocking the carriage with the locking member according to one operation of contacting and separating the nozzle with the capping member.
    Type: Application
    Filed: July 24, 2006
    Publication date: January 25, 2007
    Inventor: Tetsuya Hiruma
  • Publication number: 20060144908
    Abstract: An envelope for recovering a used recording liquid cartridge is disclosed. The envelope comprises an inner layer made of material capable of absorbing recording liquid; and an outer layer made of water resistant material. Alternatively, the envelope comprises an inner layer made of material capable of absorbing recording liquid; a middle layer made of water resistant material; and an outer layer made of writable material.
    Type: Application
    Filed: November 10, 2004
    Publication date: July 6, 2006
    Applicants: Ricoh Company, Ltd., Marubishi Shiko Co., Ltd.
    Inventors: Tetsuya Hiruma, Kiyotaka Kikuchi
  • Publication number: 20060139420
    Abstract: An ink cartridge includes an ink containing part and first through third housings. The ink containing part includes a holding member with an ink supply opening part and a sealed ink filling opening part. The first housing includes a holding part holding the holding member of the ink containing part. The second housing has an outline analogous to that of the first housing. The third housing is fitted to the side of the assembly of the first and second housings from which side ink is supplied. The first, second, and third housings are assemblable and disassemblable.
    Type: Application
    Filed: December 2, 2003
    Publication date: June 29, 2006
    Inventors: Masakazu Muranaka, Tetsuya Hiruma