Patents by Inventor Hitoshi Kubota

Hitoshi Kubota 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: 9415958
    Abstract: An image forming apparatus is provided that can surely position a unit in an apparatus body with a simple configuration where the number of components is small. A drawing apparatus, which draws a sheet feeding cassette as a unit to a predetermined position of the apparatus body to position it, includes : a leaf spring that is an elastic member to jump-buckle; an engaging unit disposed in the leaf spring; and an engaged unit engaged with the engaging unit. When the unit is loaded on the apparatus body, the engaging unit engages the engaged unit, the elastic member jump-buckles, and accordingly the unit is drawn to the predetermined position of the apparatus body.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: August 16, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hitoshi Kubota, Daijiro Kato
  • Publication number: 20160209799
    Abstract: A cleaning device includes a cleaning member including a cleaning blade and a supporting plate for supporting the cleaning blade; a frame; first and second fixing portions, provided on the frame, for fixing the supporting plate in one end side and the other end side with respect to a longitudinal direction of the cleaning blade; a recessed portion provided on the frame at a position between the first and second fixing portions with respect to the longitudinal direction and recessed more than the first and second fixing portions in a direction away from the supporting plate; and a sealing material, applied onto the recessed portion within a range of the first and second fixing portions with respect to a perpendicular direction to the longitudinal direction, for sealing between the supporting plate fixed on the first and second fixing portions and the recessed portion.
    Type: Application
    Filed: January 13, 2016
    Publication date: July 21, 2016
    Inventors: Hitoshi Kubota, Hiromasa Katayama
  • Patent number: 9396857
    Abstract: There is provided a magnetic circuit including a first magnetic body configured to include a magnet and a yoke plate, and a second magnetic body. The yoke plate forms an opening space at a position facing the second magnetic body. The magnet is disposed in the opening space or at a position sandwiched between the yoke plates.
    Type: Grant
    Filed: October 24, 2013
    Date of Patent: July 19, 2016
    Assignee: Sony Corporation
    Inventors: Akihito Kinoshita, Hitoshi Kubota, Yasushi Tsuji, Shuichi Chihara, Masahiro Kobori, Junichiro Misawa
  • Patent number: 9398614
    Abstract: A wireless communication device in a data collection system starts measuring a time when the wireless communication device receives a wireless signal from a data collection device. The wireless communication device changes the wireless channel, transmits a detection signal for detecting the data collection device, and starts measuring a time after transmitting the detection signal when the wireless communication device is unable to receive a next wireless signal from the data collection device even after passage of a predetermined time since the wireless communication device has previously received the wireless signal. The wireless communication device changes the wireless channel to be used, depending on whether the wireless communication device has received a response signal from the data collection device in response to the detection signal within a predetermined time.
    Type: Grant
    Filed: January 5, 2011
    Date of Patent: July 19, 2016
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hitoshi Kubota, Satoshi Kurosawa, Koichi Ishibashi
  • Patent number: 9371427
    Abstract: A pattern is formed by forming a first pattern on a first film, forming a block copolymer layer including a first block chain and a second block chain on the first pattern, forming a second pattern, forming a second film on the second pattern, selectively removing the second film until the second pattern is exposed, forming a third pattern, and processing the first film using the third pattern as a mask. The second pattern is formed by microphase-separating the block copolymer layer, and removing the first block chain or the second block chain. The second film is formed by applying a material having an etch rate that is less than an etch rate of a material of the first pattern and the second pattern. The third pattern is formed by selectively removing the second pattern and the first pattern using the second film as a mask.
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: June 21, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Katsutoshi Kobayashi, Yusuke Kasahara, Hiroki Yonemitsu, Hitoshi Kubota, Ayako Kawanishi
  • Patent number: 9372445
    Abstract: In a constitution provided with no primary-transfer roller, in order to ensure a contact length between each of photosensitive drums and an intermediary transfer belt, the photosensitive drums are disposed with projecting amounts of a plurality of levels with respect to a stretching surface of the intermediary transfer belt, and therefore an apparatus is liable to be increased in a height direction. In order to avoid this, four image bearing members are arranged, along the intermediary transfer belt, with the same projection amount with respect to the stretching surface of the intermediary transfer belt, and a depressing member for depressing a belt surface between two central image bearing members toward an outside is provided.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: June 21, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideki Mori, Keiko Fujita, Hiroshi Saito, Hitoshi Kubota, Tohru Nakaegawa
  • Publication number: 20160115630
    Abstract: The present invention are a heat-bondable conjugate fiber ensuring that the crimp configuration stability can be maintained even in the state of leaving elongation of the fiber and bulkiness and softness are imparted to the nonwoven fabric, and a nonwoven fabric using the same. A heat-bondable conjugate fiber comprises a first component containing a polyester-based resin and a second component containing a polyolefin-based resin having a melting point lower than the melting point of said polyester-based resin, wherein said second component is a heat-bondable conjugate fiber accounting for a specific range of the outer fiber circumference and having a side-by-side or eccentric sheath-core structure and the fiber has a specific elongation, a specific range of a three-dimensional actualized crimp and a specific range of a crimp modulus.
    Type: Application
    Filed: May 30, 2014
    Publication date: April 28, 2016
    Applicants: ES FiberVisions CO., LTD., ES FiberVisions Hong Kong Limited, ES FiberVisions LP, ES FiberVisions ApS
    Inventors: HITOSHI KUBOTA, TADASHI IDEGUTI
  • Publication number: 20160118098
    Abstract: A magnetic memory according to an embodiment includes at least one MTJ element, the MTJ element including: a magnetic multilayer structure including a first magnetic layer in which a direction of magnetization is fixed, a second magnetic layer in which a direction of magnetization is changeable, and a tunnel barrier layer located between the first and second magnetic layers; a first electrode provided on a first surface of the magnetic multilayer structure; a second electrode provided on a second surface of the magnetic multilayer structure; an insulating film provided on a side surface of the magnetic multilayer structure; and a control electrode provided on the side surface of the magnetic multilayer structure with the insulating film located therebetween, a voltage being applied to the control electrode in a read operation, which increases an energy barrier for changing the magnetization of the second magnetic layer.
    Type: Application
    Filed: November 20, 2015
    Publication date: April 28, 2016
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoharu SHIMOMURA, Eiji KITAGAWA, Minoru AMANO, Daisuke SAIDA, Kay YAKUSHIJI, Takayuki NOZAKI, Shinji YUASA, Akio FUKUSHIMA, Hiroshi IMAMURA, Hitoshi KUBOTA
  • Patent number: 9324514
    Abstract: There is provided a key input device including a supporting member including groove portions inclined with respect to a horizontal direction, a plurality of keytops each including a sliding portion which is fitted in a corresponding groove portion of the groove portions and slides along the groove portion, and a control member configured to cause two or more keytops of the plurality of keytops to slide obliquely downward along the groove portions.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: April 26, 2016
    Assignee: Sony Corporation
    Inventors: Junichiro Misawa, Masahiro Kobori, Shuichi Chihara, Hitoshi Kubota, Akihito Kinoshita, Yasushi Tsuji
  • Publication number: 20160060410
    Abstract: A pattern is formed by forming a first pattern on a first film, forming a block copolymer layer including a first block chain and a second block chain on the first pattern, forming a second pattern, forming a second film on the second pattern, selectively removing the second film until the second pattern is exposed, forming a third pattern, and processing the first film using the third pattern as a mask. The second pattern is formed by microphase-separating the block copolymer layer, and removing the first block chain or the second block chain. The second film is formed by applying a material having an etch rate that is less than an etch rate of a material of the first pattern and the second pattern. The third pattern is formed by selectively removing the second pattern and the first pattern using the second film as a mask.
    Type: Application
    Filed: March 2, 2015
    Publication date: March 3, 2016
    Inventors: Katsutoshi KOBAYASHI, Yusuke KASAHARA, Hiroki YONEMITSU, Hitoshi KUBOTA, Ayako KAWANISHI
  • Patent number: 9256200
    Abstract: An image forming apparatus includes a fixing unit heating an image formed on a recording medium and disposed along a conveying path conveying the recording medium. The conveying path includes a first guide plate, discharge guide plate portions and second guide plate portion as conveyance guide plates guiding the recording medium. Partition walls and vertical walls are disposed at positions facing these guide plate portions. The air current guide portion guides air taken in from intake ports through an intake guide portion between the respective guide plate portions and each walls.
    Type: Grant
    Filed: May 28, 2014
    Date of Patent: February 9, 2016
    Assignee: Canon Kabushiki Kaisha
    Inventors: Keiko Fujita, Hideki Mori, Hiroshi Saito, Hitoshi Kubota
  • Patent number: 9230628
    Abstract: A magnetic memory according to an embodiment includes at least one MTJ element, the MTJ element including: a magnetic multilayer structure including a first magnetic layer in which a direction of magnetization is fixed, a second magnetic layer in which a direction of magnetization is changeable, and a tunnel barrier layer located between the first and second magnetic layers; a first electrode provided on a first surface of the magnetic multilayer structure; a second electrode provided on a second surface of the magnetic multilayer structure; an insulating film provided on a side surface of the magnetic multilayer structure; and a control electrode provided on the side surface of the magnetic multilayer structure with the insulating film located therebetween, a voltage being applied to the control electrode in a read operation, which increases an energy barrier for changing the magnetization of the second magnetic layer.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: January 5, 2016
    Assignee: KABUSHIKI KAISHA TOSHIBA
    Inventors: Naoharu Shimomura, Eiji Kitagawa, Minoru Amano, Daisuke Saida, Kay Yakushiji, Takayuki Nozaki, Shinji Yuasa, Akio Fukushima, Hiroshi Imamura, Hitoshi Kubota
  • Patent number: 9217960
    Abstract: An image forming apparatus includes: image bearing members; a belt unit including an endless belt; a slackness forming unit for performing a first function of forming a belt slacking region, at least at a portion where the belt opposes the image bearing members, by causing the slackness forming unit to act on the belt unit and for performing a second function of eliminating the belt slacking region; and a guiding unit for guiding the belt unit so that the slackness forming unit performs the first function in a state in which the belt is spaced from the image bearing members and so that the slackness forming unit performs the second function in a state in which the belt slacking region contacts the image bearing members.
    Type: Grant
    Filed: December 5, 2014
    Date of Patent: December 22, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hideki Mori, Keiko Fujita, Hiroshi Saito, Hitoshi Kubota
  • Patent number: 9219227
    Abstract: A magnetoresistive element according to an embodiment includes: a base layer; a first magnetic layer formed on the base layer, and including a first magnetic film having an axis of easy magnetization in a direction perpendicular to a film plane, the first magnetic film including MnxGa100-x (45?x<64 atomic %); a first nonmagnetic layer formed on the first magnetic layer; and a second magnetic layer formed on the first nonmagnetic layer, and including a second magnetic film having an axis of easy magnetization in a direction perpendicular to a film plane, the second magnetic film including MnyGa100-y (45?y<64 atomic %). The first and second magnetic layers include different Mn composition rates from each other, a magnetization direction of the first magnetic layer is changeable by a current flowing between the first magnetic layer and the second magnetic layer via the first nonmagnetic layer.
    Type: Grant
    Filed: November 20, 2014
    Date of Patent: December 22, 2015
    Assignees: KABUSHIKI KAISHA TOSHIBA, WPI-AIMR, Tohoku University
    Inventors: Tadaomi Daibou, Junichi Ito, Tadashi Kai, Minoru Amano, Hiroaki Yoda, Terunobu Miyazaki, Shigemi Mizukami, Koji Ando, Kay Yakushiji, Shinji Yuasa, Hitoshi Kubota, Akio Fukushima, Taro Nagahama, Takahide Kubota
  • Patent number: 9087980
    Abstract: A magnetoresistive element according to an embodiment includes: a base layer; a first magnetic layer formed on the base layer, and including a first magnetic film having an axis of easy magnetization in a direction perpendicular to a film plane, the first magnetic film including MnxGa100-x (45?x<64 atomic %); a first nonmagnetic layer formed on the first magnetic layer; and a second magnetic layer formed on the first nonmagnetic layer, and including a second magnetic film having an axis of easy magnetization in a direction perpendicular to a film plane, the second magnetic film including MnyGa100-y (45?y<64 atomic %). The first and second magnetic layers include different Mn composition rates from each other, a magnetization direction of the first magnetic layer is changeable by a current flowing between the first magnetic layer and the second magnetic layer via the first nonmagnetic layer.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: July 21, 2015
    Assignees: KABUSHIKI KAISHA TOSHIBA, WPI-AIMR, Tohoku University
    Inventors: Tadaomi Daibou, Junichi Ito, Tadashi Kai, Minoru Amano, Hiroaki Yoda, Terunobu Miyazaki, Shigemi Mizukami, Koji Ando, Kay Yakushiji, Shinji Yuasa, Hitoshi Kubota, Akio Fukushima, Taro Nagahama, Takahide Kubota
  • Publication number: 20150168879
    Abstract: An image forming apparatus includes: image bearing members; a belt unit including an endless belt; a slackness forming unit for performing a first function of forming a belt slacking region, at least at a portion where the belt opposes the image bearing members, by causing the slackness forming unit to act on the belt unit and for performing a second function of eliminating the belt slacking region; and a guiding unit for guiding the belt unit so that the slackness forming unit performs the first function in a state in which the belt is spaced from the image bearing members and so that the slackness forming unit performs the second function in a state in which the belt slacking region contacts the image bearing members.
    Type: Application
    Filed: December 5, 2014
    Publication date: June 18, 2015
    Inventors: Hideki MORI, Keiko Fujita, Hiroshi Saito, Hitoshi Kubota
  • Publication number: 20150076635
    Abstract: A magnetoresistive element according to an embodiment includes: a base layer; a first magnetic layer formed on the base layer, and including a first magnetic film having an axis of easy magnetization in a direction perpendicular to a film plane, the first magnetic film including MnxGa100-x (45?x<64 atomic %); a first nonmagnetic layer formed on the first magnetic layer; and a second magnetic layer formed on the first nonmagnetic layer, and including a second magnetic film having an axis of easy magnetization in a direction perpendicular to a film plane, the second magnetic film including MnyGa100-y (45?y<64 atomic %). The first and second magnetic layers include different Mn composition rates from each other, a magnetization direction of the first magnetic layer is changeable by a current flowing between the first magnetic layer and the second magnetic layer via the first nonmagnetic layer.
    Type: Application
    Filed: November 20, 2014
    Publication date: March 19, 2015
    Applicants: KABUSHIKI KAISHA TOSHIBA, WPI-AIMR, Tohoku University
    Inventors: Tadaomi DAIBOU, Junichi ITO, Tadashi KAI, Minoru AMANO, Hiroaki YODA, Terunobu MIYAZAKI, Shigemi MIZUKAMI, Koji ANDO, Kay YAKUSHIJI, Shinji YUASA, Hitoshi KUBOTA, Akio FUKUSHIMA, Taro NAGAHAMA, Takahide KUBOTA
  • Publication number: 20150055992
    Abstract: In a constitution provided with no primary-transfer roller, in order to ensure a contact length between each of photosensitive drums and an intermediary transfer belt, the photosensitive drums are disposed in entering amounts at a plurality of levels with respect to a stretching surface of the intermediary transfer belt, and therefore an apparatus is upsized in a height direction. In order to avoid this, four image bearing members are arranged, along the intermediary transfer belt, in the same entering amount with respect to the stretching surface of the intermediary transfer belt, and a depressing member for depressing a belt surface between two central image bearing members toward an outside is provided.
    Type: Application
    Filed: October 3, 2014
    Publication date: February 26, 2015
    Inventors: Hideki MORI, Keiko Fujita, Hiroshi Saito, Hitoshi Kubota, Tohru Nakaegawa
  • Publication number: 20140376949
    Abstract: An image forming apparatus includes a fixing unit heating an image formed on a recording medium and disposed along a conveying path conveying the recording medium. The conveying path includes a first guide plate, discharge guide plate portions and second guide plate portion as conveyance guide plates guiding the recording medium. Partition walls and vertical walls are disposed at positions facing these guide plate portions. The air current guide portion guides air taken in from intake ports through an intake guide portion between the respective guide plate portions and each walls.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 25, 2014
    Applicant: Canon Kabushiki Kaisha
    Inventors: Keiko Fujita, Hideki Mori, Hiroshi Saito, Hitoshi Kubota
  • Publication number: 20140376377
    Abstract: A communication system according to the present invention includes a plurality of ad hoc communication networks each formed by one or more communication units and one gateway and includes a monitoring server that monitors the ad hoc communication networks. The monitoring server determines on the basis of a monitoring result of load states of the gateways and a monitoring result of a congestion state of radio traffic whether it is necessary to carry out load distribution control for moving a communication unit subordinate to a first gateway to be subordinate to a second gateway set around the first gateway and, when determining that it is necessary to carry out the load distribution control, instructs at least one gateway of the first gateway and the second gateway to broadcast-deliver a signal including control information and instructing reselection of a gateway set as a participation destination.
    Type: Application
    Filed: December 20, 2011
    Publication date: December 25, 2014
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tsuyoshi Mikoda, Hitoshi Kubota, Toshihiro Inoue, Mitsunobu Abe