Patents by Inventor Akihiro Sakakibara

Akihiro Sakakibara 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).

  • Publication number: 20070109613
    Abstract: In an image reader that can adjust a distance between a platen glass and a close-contact-type image sensor (CIS) without disassembly, a CIS unit includes a CIS and a resilient body which biases the CIS toward the platen glass. A CIS roller holder includes a spacer, and a CIS holder which holds the spacer movably in the vertical direction as well as in the sub scanning direction with respect to the platen glass and is fixed to the CIS unit. Irregularities are formed on surfaces of the CIS holder and the spacer which face each other and are engageable by fitting. When the CIS unit is moved in the sub scanning direction and the CIS roller holder is brought into contact with one rib ,the CIS roller holder is brought into contact with the spacer at projections or recesses, thus changing a distance between the platen glass and the CIS.
    Type: Application
    Filed: September 29, 2006
    Publication date: May 17, 2007
    Inventor: Akihiro Sakakibara
  • Publication number: 20070109612
    Abstract: In an image reader having a static-document reading function and a moving-document reading function, a static-document pressing member is movably arranged on a cover portion and a sheet passing opening is opened or closed by moving the static-document pressing member. Further, the image reader includes a moving-document pressing member for pressing a document being automatically fed when it come to a document reading position on a platen glass when the static-document pressing member is moved to open the sheet passing opening.
    Type: Application
    Filed: September 28, 2006
    Publication date: May 17, 2007
    Inventors: Akihiro Sakakibara, Satoru Nakakita, Yasuhito Bandai
  • Publication number: 20070063417
    Abstract: An automatic paper feed device is provided, including (1) a placement unit in which paper is placed, (2) a separation and transport mechanism that separates paper placed in the placement unit and transports paper placed in the placement unit in a transport direction, and (3) a cover member that has a paper insertion opening in a nearly rectangular shape, the paper insertion opening having a longitudinal direction perpendicular to both a transport direction of the paper and a thickness direction of the paper. The paper insertion opening includes a first end opening portion, a second end opening portion, and a center opening portion. The center opening portion is located in a position corresponding to the separation and transport mechanism.
    Type: Application
    Filed: September 20, 2006
    Publication date: March 22, 2007
    Inventors: Akihiro Sakakibara, Takashi Ohama
  • Publication number: 20070063430
    Abstract: An image reader includes: a conveyance path forming member; a conveying unit; a reading unit; and a pressing unit. The conveyance path forming member forms a part of a conveyance path extending from a conveyance start position to a discharge position via an image reading position. The conveying unit is capable of conveying documents having different widths along the conveyance path. The reading unit reads the document at the reading position. The pressing unit extends in the document width direction, is disposed as opposed to the reading unit, and holds the document conveyed by the conveying unit in cooperation with the conveyance path forming member by pressing the document against the conveyance path forming member. The pressing unit is divided into a plurality of pressing members that are arranged in the document width direction and that press the documents against the conveyance path forming member independently from one another.
    Type: Application
    Filed: September 15, 2006
    Publication date: March 22, 2007
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Akihiro Sakakibara, Takashi Ohama
  • Publication number: 20070057436
    Abstract: A tray which holds documents to be fed has a document holding portion which holds document in a stacked state thereon and guide members which are arranged on the document holding portion in the cross direction (document width direction) and at least one of which is movable in the document width direction. The document feeding tray further has an extending portion which extends from the document holding portion in the feeding direction (document length direction) to freely increase or decrease the extending amount and a adjusting mechanism which decreases the extending amount of the extending portion as a distance between the guide members becomes narrower and increases the extending portion as the distance between the guide members becomes wider.
    Type: Application
    Filed: September 15, 2006
    Publication date: March 15, 2007
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Akihiro Sakakibara, Takashi Ohama
  • Publication number: 20070058220
    Abstract: An image reading apparatus capable of easily detecting the width of a document is provided in such a manner that an increase in the number of component parts is suppressed. A surface to be detected 23a of a moving section 23 that moves in linkage with the movement of a document guide 21 is detected using an image pickup device 11, so that the width dimension of the document is detected. This allows the image reading apparatus 1 to detect the width dimension of the document by using the ordinary image pickup device 11.
    Type: Application
    Filed: September 15, 2006
    Publication date: March 15, 2007
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Akihiro Sakakibara, Takashi Ohama
  • Publication number: 20070002397
    Abstract: An image reader includes a casing, a contact glass plate, a contact image sensor, and a sliding mechanism; wherein the contact image sensor has a housing, a light source attached to the housing so as to face the contact glass plate, a plurality of light receiving elements attached to the housing so as to face the contact glass plate and aligned in parallel in a longitudinal direction of the housing, and a bearing formed integral to the housing at a position below a lower surface of the housing; and the sliding mechanism includes a guide shaft provided on the casing and extending in a short direction of the housing and inserted through the bearing, and an urging member elastically which urges the guide shaft toward the contact glass plate so that the housing is pressed against the contact glass plate.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 4, 2007
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshinori Osakabe, Tatsuya Sato, Akihiro Sakakibara, Takashi Ohama
  • Publication number: 20070002398
    Abstract: An image reader has an image sensor; a carriage; a positioning portion formed at a predetermined position in a longitudinal direction of the image sensor with respect to a reference position of the image sensor; a connector portion to which an electric cable is connected and which is provided between an end of the carriage and one end in the longitudinal direction of a case of the image sensor; and an engaging portion formed in the carriage. In the image recording apparatus, since the positioning portion is engaged with the engaging portion, it is possible to use a common carriage for a plurality of types of image sensors, and an operation of connecting the electric cable becomes simple.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 4, 2007
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Takashi Ohama, Yoshinori Osakabe, Takahiro Ikeno, Akihiro Sakakibara
  • Publication number: 20050110818
    Abstract: When a cover body at a closing position is pulled up with respect to a main body, then a lock lever attached to the cover body abuts against a hook body of the main body, regulating a rattle of the cover body with respect to the main body. When a user lifts up a multi-function peripheral device by grabbing the lock lever, the lock lever comes into engagement with the hook body, thereby preventing the lock lever from opening.
    Type: Application
    Filed: January 7, 2005
    Publication date: May 26, 2005
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Akihiro Sakakibara, Masato Moribe, Toshio Sugiura
  • Patent number: 6851802
    Abstract: When a cover body at a closing position is pulled up with respect to a main body, then a lock lever attached to the cover body abuts against a hook body of the main body, regulating a rattle of the cover body with respect to the main body. When a user lifts up a multi-function peripheral device by grabbing the lock lever, the lock lever comes into engagement with the hook body, thereby preventing the lock lever from opening.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: February 8, 2005
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Akihiro Sakakibara, Masato Moribe, Toshio Sugiura
  • Publication number: 20030206224
    Abstract: When a cover body at a closing position is pulled up with respect to a main body, then a lock lever attached to the cover body abuts against a hook body of the main body, regulating a rattle of the cover body with respect to the main body. When a user lifts up a multi-function peripheral device by grabbing the lock lever, the lock lever comes into engagement with the hook body, thereby preventing the lock lever from opening.
    Type: Application
    Filed: April 29, 2003
    Publication date: November 6, 2003
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Akihiro Sakakibara, Masato Moribe, Toshio Sugiura
  • Patent number: 6197870
    Abstract: A hard-type high-structure carbon black capable of providing the rubber comprising the carbon black with a high modulus, superior abrasion resistance, and gripping performance, exhibiting high abrasion resistance corresponding to the modulus, and suitable for tire treads, and a rubber composition. The hard-type high-structure carbon black of the present invention having characteristics of 70≦CTAB≦250, 130≦DBP, 115≦24M4DBP, DBP-24M4DBP≦40, &Dgr;Dst/Dst≦0.8, and a correlation factor f calculated by the following formula (1) satisfying the following formula (2). f=(Tint/CTAB)·(24M4DBP/Dst)/(N2SA/IA)  (1) 1.2≦f≦1.6  (2) The rubber composition comprising 20-150 parts by weight of the above carbon black for 100 parts by weight of natural rubbers, synthetic rubbers, or blends of these rubbers.
    Type: Grant
    Filed: August 27, 1999
    Date of Patent: March 6, 2001
    Assignee: Tokai Carbon Company, Ltd.
    Inventor: Akihiro Sakakibara