Patents by Inventor Koichi Kubo

Koichi Kubo 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: 20160200114
    Abstract: To provide an ink cartridge capable of accomplishing satisfactory electrical connection relative to a printer main assembly An ink cartridge 1 detachably mountable to a cartridge mounting portion 33 provided with an ink receiving tube 52 and a plurality of electrical connecting portions 55, the ink cartridge 1 including a tube inserting portion 8 into which the receiving tube 52 is insertable, a substrate 3 provided on a front side 2c in a position above the tube inserting portion 8, a plurality of electrical contacts 4 electrically connectable with the plurality of electrical connecting portions 55, the electrical contacts 4 being arranged on the substrate 3 in a direction crossing with a direction from a bottom surface 2b toward an upper surface 2a
    Type: Application
    Filed: March 7, 2016
    Publication date: July 14, 2016
    Inventors: Tatsuo Nanjo, Yasuo Kotaki, Kenta Udagawa, Hiroshi Koshikawa, Wataru Takahashi, Koichi Kubo, Shigeki Fukui, Naozumi Nabeshima, Soji Kondo, Masafumi Seki, Kazuya Yoshii, Satoshi Kimura, Kyosuke Toda
  • Patent number: 9278540
    Abstract: There is provided a liquid storage container capable of efficiently using a liquid stored therein. An ink cartridge has a flexible member having flexibility attached to a wall surface inside a housing to define a space inside the housing. In a position during use, an angle between the wall surface inside the housing and the flexible member in a lower attachment position of the flexible member to the housing is greater than an angle between the wall surface inside the housing and the flexible member in an upper attachment position.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: March 8, 2016
    Assignee: CANON KABUSHIKI KAISHA
    Inventors: Masafumi Seki, Naozumi Nabeshima, Koichi Kubo, Kazuya Yoshii
  • Publication number: 20150375515
    Abstract: There is provided a liquid storage container capable of efficiently using a liquid stored therein. An ink cartridge has a flexible member having flexibility attached to a wall surface inside a housing to define a space inside the housing. In a position during use, an angle between the wall surface inside the housing and the flexible member in a lower attachment position of the flexible member to the housing is greater than an angle between the wall surface inside the housing and the flexible member in an upper attachment position.
    Type: Application
    Filed: June 19, 2015
    Publication date: December 31, 2015
    Inventors: Masafumi Seki, Naozumi Nabeshima, Koichi Kubo, Kazuya Yoshii
  • Publication number: 20150352851
    Abstract: There is provided a method of filling a liquid container with liquid such that an amount of remaining air is suppressed to be as small as possible. For this purpose, while performing, on a liquid containing chamber, a primary pressure reduction, a primary injection, a secondary pressure reduction, and a secondary injection in turn, degrees of the primary pressure reduction and secondary pressure reduction are each appropriately adjusted to fill the liquid with a target amount of air remaining.
    Type: Application
    Filed: May 28, 2015
    Publication date: December 10, 2015
    Inventors: Akira Shiba, Naozumi Nabeshima, Koichi Kubo
  • Patent number: 9016842
    Abstract: A liquid container and an apparatus in which the liquid container is mountable are provided, the liquid container and the apparatus enabling the presence or absence of remaining liquid to be checked without the need for a power source and even after the liquid container is removed. The pressure in a communication path is maintained while ink in a containing section is not supplied to the exterior. Thus, the displacement state of a detection valve which is displaced depending on the pressure in the communication path can be maintained even after removal of an ink tank.
    Type: Grant
    Filed: February 25, 2014
    Date of Patent: April 28, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeho Miyashita, Yasuo Kotaki, Koichi Kubo, Hitoshi Takada, Tatsuo Nanjo, Hideki Ogura, Hironori Murakami, Hideo Fukazawa, Eiichi Adachi
  • Patent number: 9000410
    Abstract: According to one embodiment, a nonvolatile memory device includes a first conductive unit, a second conductive unit, and a memory layer. The memory layer is provided between the first conductive unit and the second conductive unit. The memory layer is capable of reversibly transitioning between a first state with a low resistance and a second state with a higher resistance than the first state due to a current supplied via the first conductive unit and the second conductive unit. The memory layer has a chalcopyrite structure.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: April 7, 2015
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Koichi Kubo
  • Patent number: 8960869
    Abstract: The invention is to prevent positional deviation of a sealing valve, improve bubble releasability during atmosphere introduction, and stably supply ink to a recording head. The configuration is provided with an opening 270 on an upper portion of a cylindrical regulating body 165 of a joint base 140 in a state where an ink tank 100 is mounted on a connection unit 10 of a printer.
    Type: Grant
    Filed: February 16, 2011
    Date of Patent: February 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hitoshi Takada, Yasuo Kotaki, Koichi Kubo, Hiroki Hayashi, Tatsuo Nanjo, Takeho Miyashita
  • Patent number: 8877545
    Abstract: A manufacturing includes forming an insulating layer covering a portion of a first semiconductor layer on a semiconductor substrate, removing a portion of the first semiconductor layer which is not covered with the insulating layer with an etchant to expose a potion of the first main surface, and cleaning the first main surface using a cleaning liquid containing hydrofluoric acid. An etching rate by the etchant to etch the first semiconductor layer is higher than an etching rate by the etchant to etch a first surface layer of the insulating layer, the first surface layer being on the side opposite to the first semiconductor layer. An etching rate by the cleaning liquid to etch a second surface layer of the insulating layer, the second surface layer being on the first semiconductor layer side, is lower than an etching rate by the cleaning liquid to etch the first surface layer.
    Type: Grant
    Filed: January 29, 2013
    Date of Patent: November 4, 2014
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Masato Shigematsu, Koichi Kubo, Takahiro Mishima, Yasuko Hirayama, Taiki Hashiguchi
  • Patent number: 8816318
    Abstract: A nonvolatile memory device includes a first and second conductive unit and a memory layer. The memory layer is provided between the first conductive unit and the second conductive unit. The memory layer includes a material expressed by (M11?uM2u)xX+y?+z? (M1 and M2 include at least one selected from the group consisting of Mg, Al, Sc, Y, Ga, Ti, Zr, Hf, Si, Ge, Sn, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Nb, Ta, Mo, W, Ru, Rh, Ca, Sr, Ba, and Ln (a lanthanoid element), X includes at least one of O and N, ? includes at least one of Li, Na, K, Rb, Cs, and Fr, ? includes at least one of F, Cl, Br, and I, 0.1?x?1.1, 0.0001?y?0.2, 0.9?y/z?1.1).
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: August 26, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Koichi Kubo
  • Patent number: 8770731
    Abstract: A liquid container and an apparatus in which the liquid container is mountable are provided, the liquid container and the apparatus enabling the presence or absence of remaining liquid to be checked without the need for a power source and even after the liquid container is removed. The pressure in a communication path is maintained while ink in a containing section is not supplied to the exterior. Thus, the displacement state of a detection valve which is displaced depending on the pressure in the communication path can be maintained even after removal of an ink tank.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: July 8, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeho Miyashita, Yasuo Kotaki, Koichi Kubo, Hitoshi Takada, Tatsuo Nanjo, Hideki Ogura, Hironori Murakami, Hideo Fukazawa, Eiichi Adachi
  • Patent number: 8770730
    Abstract: A liquid container enables a liquid contained in a liquid containing chamber to be supplied to an exterior through a supply port. The liquid container includes a first channel, a second channel, and a communication path. The first channel is in communication with a first opening which opens into the liquid containing chamber. The second channel is in communication with a second opening which opens into the liquid containing chamber, the second opening being positioned above the first opening in a direction of gravitational force. The communication path allows the first channel and the second channel to communicate with each other outside the liquid containing chamber to permit a flow of the liquid.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: July 8, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tatsuo Nanjo, Yasuo Kotaki, Hitoshi Takada, Koichi Kubo, Hideki Ogura, Hironori Murakami, Takeho Miyashita, Hideo Fukazawa, Eiichi Adachi
  • Publication number: 20140176647
    Abstract: A liquid container and an apparatus in which the liquid container is mountable are provided, the liquid container and the apparatus enabling the presence or absence of remaining liquid to be checked without the need for a power source and even after the liquid container is removed. The pressure in a communication path is maintained while ink in a containing section is not supplied to the exterior. Thus, the displacement state of a detection valve which is displaced depending on the pressure in the communication path can be maintained even after removal of an ink tank.
    Type: Application
    Filed: February 25, 2014
    Publication date: June 26, 2014
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Takeho Miyashita, Yasuo Kotaki, Koichi Kubo, Hitoshi Takada, Tatsuo Nanjo, Hideki Ogura, Hironori Murakami, Hideo Fukazawa, Eiichi Adachi
  • Publication number: 20140167332
    Abstract: Fingerprint-erasing cured films for rendering fingerprint depositions on various surfaces quickly less visible, or invisible; a manufacturing method therefor; a display or touch panel using the same; and electronic devices using these are provided. A liquid coating film including a solvent and a polymerizable resin composition curable by an activating energy beam is formed. In a state of the solvent being included within the film, the film is cured to form a cured film containing the solvent, preferably using a release material whose surface has undergone matte processing; and the solvent is evaporated in a subsequent drying step, whereby a cured film with a multitude of micropores on the surface is formed. Fingerprint soiling is rendered not readily visible or invisible. By using the cured film, there are obtained displays, touch panels, and electronic devices having fingerprint-erasability. To improve fingerprint-erasability, adding a water-absorbent compound to the film composition is preferable.
    Type: Application
    Filed: February 21, 2014
    Publication date: June 19, 2014
    Applicant: TSUJIDEN CO., LTD.
    Inventors: Akira MIYAZAKI, Yasunori MORI, Koichi KUBO, Haruya KAKUTA
  • Patent number: 8575589
    Abstract: A nonvolatile semiconductor memory device includes a plurality of first lines; a plurality of second lines crossing the plurality of first lines; a plurality of memory cells each connected at an intersection of the first and second lines between both lines and including a variable resistor operative to store information in accordance with a variation in resistance; and a protection film covering the side of the variable resistor to suppress migration of cations at the side of the variable resistor.
    Type: Grant
    Filed: November 14, 2008
    Date of Patent: November 5, 2013
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Hiroyuki Nagashima, Koichi Kubo, Hirofumi Inoue
  • Patent number: 8550607
    Abstract: An ink container for retaining ink includes an ink containing body, an elastically displaceable supporting member, a light emitting portion, a light receiving portion for receiving light from the light emitting portion, a display portion for displaying the received light, and a light guide portion for optically connecting the light receiving portion and the display portion so as to guide the light received by the receiving portion to the display portion. The supporting member at least partly functions as the light guide portion. The light receiving portion is located, with a gap with respect to the light emitting portion, so as to cover the light emitting portion. The light receiving portion approaches the light emitting portion when the supporting member approaches the ink containing body by being subjected to urging toward the ink containing body.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: October 8, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Ryoji Inoue, Yasuo Kotaki, Tetsuya Ohashi, Koichi Kubo
  • Publication number: 20130248807
    Abstract: A nonvolatile memory device includes a first and second conductive unit and a memory layer. The memory layer is provided between the first conductive unit and the second conductive unit. The memory layer includes a material expressed by (M11?uM2u)xX+y?+z? (M1 and M2 include at least one selected from the group consisting of Mg, Al, Sc, Y, Ga, Ti, Zr, Hf, Si, Ge, Sn, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Nb, Ta, Mo, W, Ru, Rh, Ca, Sr, Ba, and Ln (a lanthanoid element), X includes at least one of O and N, ? includes at least one of Li, Na, K, Rb, Cs, and Fr, ? includes at least one of F, Cl, Br, and I, 0.1?x?1.1, 0.0001?y?0.2, 0.9?y/z?1.1).
    Type: Application
    Filed: February 27, 2013
    Publication date: September 26, 2013
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Koichi KUBO
  • Patent number: 8529037
    Abstract: An ink tank for being installed in an ink jet recording apparatus to supply ink thereto, including an ink storage portion, one side surface of a casing of the ink tank in which side surface an opening for supplying ink to the apparatus is formed, and a joint member for joining the one side surface to the apparatus by engaging with a connection member of the apparatus. The joint member has a welding portion for being welded to the one side surface along a peripheral portion of the opening, the welding portion corresponding to the peripheral portion; and a hollow portion forming a positioning hole for inserting therein and engaging therewith the connection member for determining a relative position of the apparatus and the one side surface. The hollow portion is provided on the outside of the welding portion and abuts to the one side surface without being welded.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: September 10, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takeho Miyashita, Yasuo Kotaki, Hitoshi Takada, Koichi Kubo, Hiroki Hayashi
  • Patent number: 8474957
    Abstract: An ink tank includes a stirrer supported in a freely moveable manner near an inner wall of an ink storage chamber. When the stirrer moves closest to the inner wall, a predetermined gap is formed between opposing surfaces of the inner wall and the stirrer.
    Type: Grant
    Filed: October 2, 2009
    Date of Patent: July 2, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Koichi Kubo, Shogo Kawamura, Tetsuya Ohashi, Ryoji Inoue, Hideki Ogura, Yasuo Kotaki
  • Patent number: 8469498
    Abstract: An ink tank containing ink including a pigment component effectively prevents a problem that an ink having a higher concentration and including a sedimentary pigment is led out, even in a case where the ink tank is left unused on a printing apparatus for a long time. To this end, an ink leading-out port placed in an ink containing chamber, and used to supply the ink to a printing head is located higher than a lowermost portion of the ink containing chamber, and is also formed in an inclined surface inclined to a gravitational direction. Thereby, the sedimentary pigment slides the inclined surface, and thus is settled down in a position away from the ink leading-out port.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: June 25, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tetsuya Ohashi, Yasuo Kotaki, Ryoji Inoue, Koichi Kubo, Masashi Ogasawara
  • Patent number: D696721
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: December 31, 2013
    Assignee: Canon Kabushiki Kaisha
    Inventors: Takatoshi Kitagawa, Hideo Fukazawa, Takashi Kusanagi, Yasuo Kotaki, Tetsuya Ohashi, Hitoshi Takada, Koichi Kubo, Takeho Miyashita