Patents by Inventor Atsuhisa Nakashima

Atsuhisa Nakashima 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: 7980688
    Abstract: An inkjet recording apparatus includes: (a) a first medium accommodator configured to accommodate a recording medium; (b) a medium supporter having a flat horizontal surface on which the recording medium is to be supported; (c) an inkjet head having a nozzle opening surface that is opposed to the flat horizontal surface of the medium supporter; (d) a first medium feeder configured to horizontally feed the recording medium accommodated in the first medium accommodator, in a medium loading direction, such that the recording medium is fed onto the flat horizontal surface of the medium supporter; (e) a second medium feeder configured to horizontally feed the recording medium supported on the flat horizontal surface of the medium supporter, in a medium unloading direction that intersects the medium loading direction in a plan view as seen in a direction perpendicular to the flat horizontal surface of the medium supporter; and (f) a second medium accommodator configured to accommodate the recording medium that is f
    Type: Grant
    Filed: August 15, 2007
    Date of Patent: July 19, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Atsuhisa Nakashima, Susumu Kuzuya
  • Patent number: 7971988
    Abstract: In a state that a termination edge of a recording medium aligns with a termination edge of a region opposing a recording head (nozzle surface), a sticking force acting on the recording medium is set to be at least equal to or greater than the weight of a part (a portion having a length) of the recording medium protruding from a separation start position toward the downstream side in a conveying direction.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: July 5, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima
  • Patent number: 7925181
    Abstract: An image forming apparatus is provided. The image forming apparatus includes a main body; process cartridges, each including a photosensitive drum and a developing roller; a body frame including a abutment portions and projecting portions; fixing members configured to rotate to a locked state where the fixing members bring the process cartridges into abutment with the abutment portions and to an unlocked state where the fixing members are spaced apart from the process cartridges; spacing members which move to a spacing position where the developing rollers are spaced apart from the photosensitive rollers and a permissive position where the developing rollers are in contact with the developing rollers; and a translation member reciprocating in a straight line for displacing the fixing members between the locked state and the unlocked state and moving the spacing members between the spacing position and the permissive position.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: April 12, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshiteru Hattori, Wei Ming Wang, Hidetoshi Yano, Sachiko Yano, legal representative, Atsuhisa Nakashima
  • Patent number: 7865113
    Abstract: An image forming apparatus is described. The image forming apparatus may include a casing, developing agent carriers, an image carrier, and a transferring unit anteroposteriorly detachably mountable to the casing on a front side of the casing. The transferring unit includes a projection at a rear end portion thereof and the casing includes a restricting portion that is arranged lower than the projection of the transferring unit midway through mounting and is engaged with the projection at completion of the mounting of the transferring unit. At least one of the casing and the transferring unit includes a first guide portion for guiding the transferring unit by inclining the transferring unit so that the rear end portion of the transferring unit midway through the mounting is more downwardly inclined than the rear end portion at the completion of the mounting of the transferring unit.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: January 4, 2011
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima
  • Patent number: 7854502
    Abstract: An ink-jet recording apparatus comprises rollers, an endless conveyor belt, a nip roller, and an ink-jet head. The endless conveyor belt is stretched between the rollers. The nip roller cooperates with an outer surface of the conveyor belt to sandwich a recording medium. The ink-jet head has nozzles from which ink is ejected to the recording medium that is conveyed in a predetermined conveyance direction by the conveyor belt. The conveyor belt has a base member, an elastic layer formed on an outer surface of the base member, and an adhesive layer formed on an outer surface of the elastic layer and holding thereon the recording medium. The elastic layer deforms in its thickness direction when the recording medium is sandwiched between the adhesive layer and the nip roller.
    Type: Grant
    Filed: January 3, 2007
    Date of Patent: December 21, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima
  • Patent number: 7840159
    Abstract: An image-forming device includes a first frame, and a first supporting unit. The first frame includes a first plate-shaped part having a surface orthogonal to the first direction and supports a first image-bearing member. The first plate-shaped part is formed with at least two first positioning holes. Each of the at least two first positioning holes is defined by a first inner surface that extends in the first direction. The first supporting unit erects from the first plate-shaped part and includes at least two first fitting parts and a first contact part. The at least two first fitting parts fit into the at least two first positioning holes. The first contact part extends in the first direction from each of the at least two first fitting parts. The first contact part contacts and supports the exposure unit. The exposure unit is oriented in a direction in which the light emitted from the plurality of light emitting elements is directed toward a second direction orthogonal to the first direction.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: November 23, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima
  • Patent number: 7832853
    Abstract: An inkjet printer includes a pair of rollers whose axes of rotation are parallel to each other. An endless conveyor belt is stretched between the pair of rollers. The conveyor belt conveys a print medium in the conveyance direction attendant upon rotations of the pair of rollers. The conveyor belt has, on its outer circumferential surface, an ink receiving groove extending in a direction intersecting the conveyance direction. The depth of the ink receiving groove gradually increases toward the center of the ink receiving groove in the conveyance direction in at least one of regions continuous from front and rear ends of the ink receiving groove in the conveyance direction.
    Type: Grant
    Filed: February 24, 2006
    Date of Patent: November 16, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima
  • Patent number: 7824518
    Abstract: In order to manufacture an ink-jet head, a head body and a reservoir unit are formed first. Then, UV-cured resin is applied on the lower surface of the reservoir unit. Then, the head body is placed on a plane of a jig so that the plane abuts against the ink discharge surface. Then, the reservoir unit is positioned with respect to the head body and the jig so that an ink reservoir of the reservoir unit and ink flow channels of a flow channel unit are brought into communication and the both ends in the longitudinal direction of a reservoir base plate and the upper surfaces of walls oppose to each other, and the reservoir unit is laminated on upper surface of the flow channel unit via the UV-cured resin. Subsequently, the UV-cured resin is cured in a state in which the lower surface of the reservoir base plate abuts against the upper surfaces of the walls.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: November 2, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Atsuhisa Nakashima, Hiroto Sugahara
  • Patent number: 7771040
    Abstract: A transfer belt has a two-layer structure consisting of two inner belts formed of metal, such as stainless steel, and an outer belt formed of an elastic material, such as silicone rubber, being spread across the inner belts. The inner belts are endless and wound around transfer rollers, while the outer belt has its ends which are not joined with each other and form an opening therebetween. Distortion of the outer belt due to stress is designed to be suppressed by using a reinforcing member around the opening.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: August 10, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima
  • Patent number: 7753473
    Abstract: A liquid ejecting apparatus has a movement mechanism, a pressurized purge unit, and a liquid discharge restriction mechanism. The movement mechanism moves at least one of a liquid ejecting head and a cap so as to allow the cap to take a capping position where the cap covers a liquid ejection face of the head or an uncapping position where the cap is spaced away from the liquid ejection face and capable of receiving liquid ejected from nozzles formed on the liquid ejection face. The pressurized purge unit makes liquid forcibly ejected from the nozzles into the cap. The liquid discharge restriction mechanism restricts liquid from being discharged through a discharge port of the cap when the cap is in the capping position, and permits liquid to be discharged through the discharge port when the cap is in the uncapping position.
    Type: Grant
    Filed: November 22, 2006
    Date of Patent: July 13, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima
  • Patent number: 7748821
    Abstract: An object of the present invention is to provide an ink-jet printer that can wipe off ink adhering to an ink ejection face and besides can clean a lip of a cap in such a manner that foreign materials adhering to the lip can surely be removed. An ink-jet printer includes a cap, a wiper, a cap cleaning blade, and an ink supplier. The cap is contactable with and separable from an ink ejection face of an ink-jet head, and includes a lip that is brought into close contact with the ink ejection face. The wiper is movable in parallel to and relative to the ink ejection face. The cap cleaning blade is provided integrally with the wiper, and, while being in contact with the lip, cleans the lip in association with the wiper moving relative to the ink ejection face. The ink supplier supplies ink wiped off by the wiper to the cap cleaning blade.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: July 6, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima
  • Patent number: 7744209
    Abstract: In an image forming apparatus, a nip roller group for pressing a face of a conveyance belt on which a recording medium is held includes a pair of first end pressing parts which are arranged in the width direction of the conveyance belt at a distance corresponding to the recording medium having a predetermined size, and a first center pressing part which is arranged between the pair of first end pressing parts. Herein, a pressing force of the first center pressing part is set to be smaller than pressing forces of the first end pressing parts.
    Type: Grant
    Filed: February 21, 2006
    Date of Patent: June 29, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima
  • Publication number: 20100080612
    Abstract: An image forming apparatus is provided. The image forming apparatus includes a plurality of detachable unit components and a frame assembly to hold the detachable unit components in predetermined positions in the image forming apparatus. The frame assembly includes a pair of metal frames and a pair of resin frames, each of which is attached to one of the metal frames. Each of the metal frames includes a first positioning structure, which corresponds to an original point of the metal frame, a first fixing structure, a second positioning structure, wherein each of the resin frames includes, a first positioning structure, which corresponds to an original point of the resin frame, a fixing structure, a second positioning structure, and a plurality of pressing pieces, by which the resin frame is pressed against one of the metal frame.
    Type: Application
    Filed: September 21, 2009
    Publication date: April 1, 2010
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa NAKASHIMA
  • Patent number: 7677719
    Abstract: An inkjet recording apparatus includes a holding face, an inkjet head including plural nozzles arranged along a predetermined direction correspondingly with a predetermined resolution, a first moving mechanism which performs a first movement of moving at least one of the inkjet head and the holding member in a direction perpendicular to the predetermined direction, a second moving mechanism which performs a second movement of moving the holding member in the predetermined direction, and a first movement controlling unit which controls the first moving mechanism to perform the first movement first and second times. In the second time, the inkjet head and the holding member are moved in directions that are opposite to directions in the first time. A second movement controlling unit controls the second moving mechanism to, after the first movement for the first time, perform the second movement by one half of a distance corresponding to the predetermined resolution.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: March 16, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Atsuhisa Nakashima, Susumu Kuzuya
  • Patent number: 7673986
    Abstract: An inkjet recording apparatus includes a belt transporting apparatus, a nip roller nipping a recording medium in cooperation with an outer peripheral face of a transport belt at a predetermined position, a nip-roller moving mechanism, an inkjet head, an applying unit which applies cleaning fluid to the outer peripheral face, a blade which is in contact with the outer peripheral face on a downstream side of a position where the cleaning fluid is applied to the outer peripheral face to scrape off the cleaning fluid and ink that adhere to the outer peripheral face, a travel controlling unit which controls the transport belt driving unit to cause the transport belt to travel, and a nip-roller movement controlling unit which causes the nip roller to be contacted with the outer peripheral face after an initial contact place passes the predetermined position.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: March 9, 2010
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima
  • Publication number: 20090304412
    Abstract: An image forming apparatus is provided. The image forming apparatus includes a main body; process cartridges, each including a photosensitive drum and a developing roller; a body frame including a abutment portions and projecting portions; fixing members configured to rotate to a locked state where the fixing members bring the process cartridges into abutment with the abutment portions and to an unlocked state where the fixing members are spaced apart from the process cartridges; spacing members which move to a spacing position where the developing rollers are spaced apart from the photosensitive rollers and a permissive position where the developing rollers are in contact with the developing rollers; and a translation member reciprocating in a straight line for displacing the fixing members between the locked state and the unlocked state and moving the spacing members between the spacing position and the permissive position.
    Type: Application
    Filed: December 22, 2008
    Publication date: December 10, 2009
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Yoshiteru HATTORI, Wei Ming WANG, Hidetoshi YANO, Sachiko YANO, Atsuhisa NAKASHIMA
  • Publication number: 20090252530
    Abstract: An image forming apparatus includes an apparatus body, and a process cartridge removably mounted to the apparatus body. The process cartridge includes a photosensitive cartridge including a photosensitive member, and a developing cartridge including a developer carrying member, which is contactable with the photosensitive member, and which carries developer. The image forming apparatus further includes a first pressing member that presses the photosensitive cartridge in a first direction with respect to a positioning portion that is provided on the apparatus body, and a separating member that includes a second pressing member that acts in a second direction and thereby causes the developer carrying member to separate from the photosensitive member. The first direction and the second direction are substantially the same.
    Type: Application
    Filed: December 22, 2008
    Publication date: October 8, 2009
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa NAKASHIMA
  • Publication number: 20090245849
    Abstract: An image forming apparatus with a plate having holes is described. An image forming apparatus includes image carriers, side walls, and a plate disposed below the image carriers. The plate includes a plurality of holes along the sides of the plate near the side walls. The image carriers, the side walls, and the plate form one or more passages for air to flow during operation of a cooling fan.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 1, 2009
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa NAKASHIMA
  • Patent number: 7588309
    Abstract: Cleaning liquid stored in a first storage tank is absorbed by a sponge via a passage formed in a tube and a holder, and then applied onto a conveyance belt when the sponge comes into contact with the conveyance belt. Here, even when air bubbles enter into the cleaning liquid supplied to the sponge, the air bubbles are discharged to the outside through an air discharging hole formed in the holder.
    Type: Grant
    Filed: February 28, 2006
    Date of Patent: September 15, 2009
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima
  • Patent number: 7585048
    Abstract: A print head cap includes a bottom surface; and a ring-like lip. The ring-like lip surrounds the bottom surface, protrudes toward a nozzle surface of a print head of an ink jet printer and is elastically deformable. The ring-like lip is pressed onto the nozzle surface to cover the nozzle surface therewith. The ring-like lip has corners that change the direction surrounding the bottom surface. The corners of the ring-like lip are more elastically deformable than the other portions of the ring-like lip.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: September 8, 2009
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventor: Atsuhisa Nakashima