Patents by Inventor Akinari Ishibe

Akinari Ishibe 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: 10350897
    Abstract: A liquid supplying device includes a tank; and a cartridge configured to be attached to the tank and having a first storage chamber configured to store liquid. The cartridge is formed with a communicating opening in communication with the first storage chamber. The tank has a second storage chamber configured to store the liquid, a liquid passage, a gas passage, a joint, an outer wall, an inner wall, an air communication portion, and a narrow-width portion. The liquid passage is in communication with the second storage chamber and has a first vertical portion. The gas passage has a second vertical portion. The first vertical portion, the second vertical portion, and the air communication portion are arranged in this order in the first direction and a direction away from the fifth end portion.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: July 16, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masahiro Hayashi, Yoshinori Osakabe, Akinari Ishibe, Hiroaki Takahashi
  • Publication number: 20190193406
    Abstract: The liquid ejection device includes a cartridge, a cartridge receiving portion and a head. The cartridge includes a first storage chamber, a first air communication port, and a supply portion. The cartridge receiving portion includes a joint, a second storage chamber, a second air communication port, and an outlet port. Liquid is supplied from the first storage chamber to the second storage chamber through the supply portion connected to the joint by water head difference. The second storage chamber includes: an upper region connected to the joint; and a lower region positioned below the upper region. The lower region has a portion positioned below a lowermost surface of the cartridge and extending along the lowermost surface when the supply portion is connected to the joint. The portion of the lower region extends away from the upper region to protrude further relative to the upper region in a protruding direction.
    Type: Application
    Filed: December 19, 2018
    Publication date: June 27, 2019
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Akinari ISHIBE
  • Patent number: 10322586
    Abstract: According to one aspect, the disclosure provides an image recording apparatus including a liquid supplying device. The liquid supplying device includes a tank, a cartridge, an atmospheric communication portion, and a recording portion. The tank has a second storage chamber configured to store liquid, a liquid passage in communication with the second storage chamber, and a gas passage in communication with the second storage chamber. The atmospheric communication portion includes a buffer tank defining a buffer chamber configured to store gas, a single communication flow passage allowing the buffer chamber to communicate with the second storage chamber, and an air communication passage allowing the buffer chamber to communicate with an atmosphere. When the cartridge is attached to the tank, the buffer chamber is positioned below the first storage chamber and the second storage chamber is positioned below the buffer chamber.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: June 18, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masahiro Hayashi, Yoshinori Osakabe, Akinari Ishibe, Hiroaki Takahashi
  • Patent number: 10308033
    Abstract: An image recording apparatus includes: a cartridge; a cartridge attachment portion; and a switching portion. The cartridge includes: a first storage chamber; a first air communication portion; and a first supply portion. The cartridge attachment portion includes: a second storage chamber; and a second air communication portion. The switching portion changes a passage resistance value of air flowing through one of the first and second air communication portions. An inequality of R2>A×R1 is met, in which R1: a passage resistance value obtained by air flowing through the first air communication portion and a passage resistance value of the liquid flowing through the first supply portion; R2: a passage resistance value of air flowing through the second air communication portion; A: a cross-sectional area ratio obtained by dividing an average cross-sectional area of the first storage chamber by an average cross-sectional area of the second storage chamber.
    Type: Grant
    Filed: September 27, 2017
    Date of Patent: June 4, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masatake Sato, Akinari Ishibe, Yuma Tanabe, Masahiro Hayashi, Akihito Kobayashi
  • Publication number: 20190152227
    Abstract: An inkjet printer further includes a printer main body, and an ink-accommodation unit including a first member and a second member. The first member is configured to accommodate ink to be supplied to the printer main body. The first member includes an injection portion for injection of ink. The second member is pivotably movably connected to the first member. The second member is pivotable relative to the first member between a closed position and an open position. When the second member is at the closed position, the injection portion is covered by the second member. When the second member is at the open position, the injection portion is exposed. Here, an axis of the pivot is parallel to a front-rear direction of the first member, and is positioned at a side of the first member, the side being closer to the printer main body.
    Type: Application
    Filed: January 25, 2019
    Publication date: May 23, 2019
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Akinari ISHIBE
  • Patent number: 10293618
    Abstract: In a state where a supply portion of a cartridge is connected to a connecting portion of a cartridge attachment section, a first base part and a first protruding part of the cartridge and a second base part and a second protruding part of the cartridge attachment section have the following positional relationship: as viewed in the horizontal direction, the first base part is overlapped with both of the second base part and second protruding part, the first protruding part is overlapped with the second base part, but is not overlapped with the second protruding part; and as viewed in the vertical direction, the first base part is not overlapped with the second base part, and is not overlapped with the second protruding part, and the first protruding part is overlapped with the second protruding part, but is not overlapped with the second base part.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: May 21, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Akihito Kobayashi, Akinari Ishibe, Yuma Tanabe, Masahiro Hayashi, Masatake Sato, Yoshinori Osakabe, Hiroaki Takahashi
  • Publication number: 20190143706
    Abstract: An image-recording apparatus includes a cartridge including a first storage chamber, a tank including a second storage chamber, a recording portion, a detected portion, a detector, and a wall portion. Liquid supplied from the first storage chamber to the second storage chamber through an inlet port is supplied from the second storage chamber to the recording portion through an outlet port. The wall portion partitions an internal space of the second storage chamber into a first region including the liquid inlet port and a second region including the detected portion. The wall portion extends upward than the liquid inlet port and the detected portion and downward than the liquid inlet port and the detected portion. Communication between the first region and the second region is allowed through upper and lower communication portions. The upper communication portion is positioned upward than the liquid inlet port and the detected portion.
    Type: Application
    Filed: January 15, 2019
    Publication date: May 16, 2019
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masahiro HAYASHI, Yuma TANABE, Akinari ISHIBE, Masatake SATO, Akihito KOBAYASHI
  • Patent number: 10259244
    Abstract: An inkjet printer includes a main body. An ink containing unit is disposed in the main body and is configured to contain ink to be supplied. The ink containing unit includes an ink refill portion through which ink is refilled and an ink level display surface disposed on a side surface of the main body. The side surface has an opening through which a jammed sheet is removed and a first cover configured to cover the opening. The ink level display surface and the first cover are juxtaposed on the side surface in a horizontal direction.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: April 16, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Akinari Ishibe, Motohiro Momozaki
  • Publication number: 20190077159
    Abstract: An inkjet recording apparatus includes a cartridge-attachment portion and an ink cartridge attachable thereto. The ink cartridge includes: a main body formed with an opening; an ink chamber disposed in the main body; a first valve opening and closing the opening; and a first pressing surface. The cartridge-attachment portion includes: an ink supply member providing an ink passage formed with an inlet; a second valve opening and closing the inlet; and a second pressing surface. In the attachment process, the ink supply member enters the ink chamber through the opening, the first pressing surface moves the second valve to a position opening the inlet, and the second pressing surface moves the first valve to a position opening the opening. In an attached state, the inlet is opened and positioned in the ink chamber, and the ink passage is in communication with the ink chamber through the inlet.
    Type: Application
    Filed: September 7, 2018
    Publication date: March 14, 2019
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masahiro HAYASHI, Akinari ISHIBE, Yoshinori OSAKABE, Akihito ONO, Hiroaki TAKAHASHI, Akihito KOBAYASHI
  • Patent number: 10207512
    Abstract: An image-recording apparatus includes a cartridge including a first storage chamber, a tank including a second storage chamber, a recording portion, a detected portion, a detector, and a wall portion. Liquid supplied from the first storage chamber to the second storage chamber through an inlet port is supplied from the second storage chamber to the recording portion through an outlet port. The wall portion partitions an internal space of the second storage chamber into a first region including the liquid inlet port and a second region including the detected portion. The wall portion extends upward than the liquid inlet port and the detected portion and downward than the liquid inlet port and the detected portion. Communication between the first region and the second region is allowed through upper and lower communication portions. The upper communication portion is positioned upward than the liquid inlet port and the detected portion.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: February 19, 2019
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masahiro Hayashi, Yuma Tanabe, Akinari Ishibe, Masatake Sato, Akihito Kobayashi
  • Publication number: 20190030910
    Abstract: An inkjet recording apparatus includes a tank, a pivot member and a first surface. The tank has a storage chamber configured to store a liquid therein. The pivot member is disposed in the storage chamber. The pivot member is configured to pivotally move about an axis extending in an axial direction in a case where a level of a liquid surface of the liquid becomes equal to a predetermined liquid level. The pivot member includes a float and a first protrusion. The float has a specific gravity smaller than that of the liquid. The first protrusion protrudes toward the first surface. The first protrusion and the first surface provide a gap therebetween. The first protrusion is at a position in contact with the liquid in a state where the level of the liquid surface of the liquid is at the predetermined liquid level.
    Type: Application
    Filed: July 30, 2018
    Publication date: January 31, 2019
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Yuma TANABE, Akinari ISHIBE, Masatake SATO, Hiroshi TAIRA
  • Patent number: 10160219
    Abstract: For an image forming apparatus including first and second storage chambers, an inequality expression of “R2>A×R1” is met. R1 is a sum of a passage resistance value obtained by flowing air through a first air communication portion and a passage resistance value obtained by flowing liquid through a supply portion. R2 is a passage resistance value obtained by flowing air through a second air communication portion. A is a cross-sectional area ratio obtained by dividing a first average cross-sectional area of a first space of the first storage chamber taken along a plurality of horizontal planes by a second average cross-sectional area of a second space of the second storage chamber taken along the plurality of horizontal planes. The first space contains at least a portion adjacent to the supply portion and accumulating the liquid. The second space contains at least a portion accumulating the liquid.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: December 25, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Akihito Kobayashi, Akinari Ishibe, Yuma Tanabe, Masahiro Hayashi, Masatake Sato
  • Patent number: 10131140
    Abstract: In an inkjet type image forming apparatus, a cartridge includes a first storage chamber and a first fluid communication portion. The first air communication portion allows the first storage chamber to be in communication with an atmosphere. A second storage chamber stores the ink supplied from the first storage chamber by hydraulic head difference. The switch portion switches a state of the second air communication portion between a first state in which the second storage chamber communicates with the atmosphere and a second state in which an amount of air flow between the second storage chamber and the atmosphere is smaller than that in the first state. The controller controls the switch portion to switch the state of the second air communication portion from the first state to the second state. After the recording process, the controller controls the switch portion to switch the state to the first state.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: November 20, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Akihito Kobayashi, Akinari Ishibe, Yuma Tanabe, Masahiro Hayashi, Masatake Sato
  • Patent number: 10131153
    Abstract: An image-recording apparatus includes a cartridge including a first storage chamber and a first air communication portion, a cartridge-attachment portion including a second storage chamber and a second air communication portion, a switching portion, and a controller. The second storage chamber stores liquid supplied from a supply portion of the cartridge connected to a connecting portion of the cartridge-attachment portion through a liquid outlet port. The switching portion switches the second air communication portion between a first state and a second state. An air flow rate through the second air communication portion per unit of time is lower in the second state than in the first state. The controller determines the liquid level of liquid in the first storage chamber and switches the switching portion to the second state when the liquid level in the first storage chamber is lower than a vertical position of the liquid outlet port.
    Type: Grant
    Filed: September 29, 2017
    Date of Patent: November 20, 2018
    Assignee: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masatake Sato, Akinari Ishibe, Yuma Tanabe, Masahiro Hayashi, Akihito Kobayashi
  • Publication number: 20180304638
    Abstract: An ink container for an inkjet printer includes an ink container body and a cover. The inkjet printer includes a printer body. The ink container body is configured to contain ink and includes a refill portion. The cover is configured to cover at least an area of the ink container body in which the refill portion is disposed and to pivot about a pivot axis between an opened position and a closed position with respect to the ink container body. When the cover is in the closed position, the refill portion is covered by the cover. When the cover is in the opened position, the refill portion is exposed. The pivot axis extends along a horizontal direction and being parallel to an attaching surface of the printer body. At least one of two side portions of the cover includes a handle.
    Type: Application
    Filed: November 18, 2016
    Publication date: October 25, 2018
    Inventors: Akinari Ishibe, Masahiro Hayashi, Satomi Aizawa, Kazuteru Kojima
  • Publication number: 20180272728
    Abstract: A liquid cartridge configured to be inserted into a cartridge attachment section includes: a cartridge body having a liquid storage chamber, and a liquid supply portion configured to supply the liquid stored in the liquid storage chamber to an outside. The liquid supply portion includes: a front end face facing frontward, an outer peripheral surface extending rearward from the front end face, and at least one guide provided at the outer peripheral surface. Each of the at least one guide is guided by corresponding at least one projection of the cartridge attachment section during attachment of a liquid supply tube of the cartridge attachment section to the liquid supply portion at a time of attachment of the liquid cartridge to the cartridge attachment section. Each of the at least one guide includes: a first guide portion, and a second guide portion.
    Type: Application
    Filed: July 31, 2017
    Publication date: September 27, 2018
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Akihito ONO, Akinari ISHIBE
  • Publication number: 20180244058
    Abstract: A liquid supplying device includes a tank; and a cartridge configured to be attached to the tank and having a first storage chamber configured to store liquid. The cartridge is formed with a communicating opening in communication with the first storage chamber. The tank has a second storage chamber configured to store the liquid, a liquid passage, a gas passage, a joint, an outer wall, an inner wall, an air communication portion, and a narrow-width portion. The liquid passage is in communication with the second storage chamber and has a first vertical portion. The gas passage has a second vertical portion. The first vertical portion, the second vertical portion, and the air communication portion are arranged in this order in the first direction and a direction away from the fifth end portion.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 30, 2018
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masahiro HAYASHI, Yoshinori OSAKABE, Akinari ISHIBE, Hiroaki TAKAHASHI
  • Publication number: 20180244059
    Abstract: According to one aspect, the disclosure provides an image recording apparatus including a liquid supplying device. The liquid supplying device includes a tank, a cartridge, an atmospheric communication portion, and a recording portion. The tank has a second storage chamber configured to store liquid, a liquid passage in communication with the second storage chamber, and a gas passage in communication with the second storage chamber. The atmospheric communication portion includes a buffer tank defining a buffer chamber configured to store gas, a single communication flow passage allowing the buffer chamber to communicate with the second storage chamber, and an air communication passage allowing the buffer chamber to communicate with an atmosphere. When the cartridge is attached to the tank, the buffer chamber is positioned below the first storage chamber and the second storage chamber is positioned below the buffer chamber.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 30, 2018
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masahiro HAYASHI, Yoshinori OSAKABE, Akinari ISHIBE, Hiroaki TAKAHASHI
  • Publication number: 20180244061
    Abstract: An image-recording apparatus includes: a first tank defining a first storage chamber; a second tank defining a second storage chamber; a conveying mechanism for conveying sheets along a conveying path extending in a depthwise direction and a widthwise direction perpendicular to a vertical direction and the depthwise direction; and a recording head including a nozzle. Liquid in the first storage chamber is supplied through a communication port to the second storage chamber and then to the recording head through a liquid outlet port. The second storage chamber is positioned further in a first depthwise direction relative to the nozzle and further in a first widthwise direction relative to the conveying path. A volume of a prescribed space above a liquid level equal to a height of the communication port in the second storage chamber is greater than that of a liquid channel between the liquid outlet port and the nozzle.
    Type: Application
    Filed: February 26, 2018
    Publication date: August 30, 2018
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masahiro HAYASHI, Akinari ISHIBE, Yuma TANABE, Masatake SATO, Akihito KOBAYASHI, Hiroaki TAKAHASHI
  • Publication number: 20180244057
    Abstract: A liquid supplying device includes a tank and a cartridge configured to be attached to the tank. The cartridge includes a first storage chamber. The tank includes a second storage chamber, a liquid passage, a gas passage, and an air communication portion. The liquid passage has a first end formed with a first opening, and a second end formed with a second opening. The gas passage has a third end formed with a third opening, and a fourth end formed with a fourth opening. In an attachment state where the first storage chamber is in communication with both the second opening and the fourth opening, the first storage chamber has a portion positioned above the liquid passage and the gas passage, and the second storage chamber is positioned below the liquid passage and the gas passage.
    Type: Application
    Filed: February 22, 2018
    Publication date: August 30, 2018
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventors: Masahiro HAYASHI, Yoshinori OSAKABE, Akinari ISHIBE, Hiroaki TAKAHASHI