Patents by Inventor Koji Kawasaki

Koji Kawasaki 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: 8944555
    Abstract: A printer capable of preventing clogging the printhead nozzles due to paper dust produced from sprocket holes in continuous paper, and preventing the printhead from ejecting ink droplets except on the continuous paper, has a printhead that ejects ink droplets toward continuous paper having sprocket holes formed along both sides of the paper width; a cover member that covers the edge part of the width of the continuous paper where sprocket holes are formed in the range of the printhead in the conveyance direction of the continuous paper, and can move in the paper width direction; and a detection mechanism that detects the position of the cover member in the paper width direction.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: February 3, 2015
    Assignee: Seiko Epson Corporation
    Inventors: Koji Kawasaki, Shuhei Kurotobi, Ichimi Masuda
  • Patent number: 8915984
    Abstract: An isolator device having a work chamber, air supply means for supplying air of a unidirectional airflow traveling from an upper part to a lower part in the work chamber, and air discharge means for discharging air of the unidirectional airflow from a lower part of the work chamber are provided, and moreover, a bulkhead provided in parallel with a peripheral wall portion of the work chamber along the air of the unidirectional airflow and longitudinal air outlets opened along a width direction of a lower end portion in a lower part of the lower end portion of the bulkhead and attached so as to oppose an air inlet portion by a filter unit for air purification is provided.
    Type: Grant
    Filed: June 10, 2011
    Date of Patent: December 23, 2014
    Assignee: Airex Co., Ltd
    Inventors: Koji Kawasaki, Minoru Miyamoto, Toshinaga Toda
  • Patent number: 8900080
    Abstract: A power transmission apparatus for a vehicle is provided which is equipped with a power split device and a speed variator. The power transmission device is designed to set a speed ratio of speed of rotation of an output of a power source to speed of rotation of a driven wheel in a power circulation mode of a power split device to lie within one of a positive range in which a sign of the speed ratio is positive and a negative range in which a sign of the speed ratio is negative. This results in a decrease in degree of torque acting on the speed variator such as a continuously variable transmission, thus permitting a required degree of durability of the speed variator to be reduced.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: December 2, 2014
    Assignees: Denso Corporation, Nippon Soken, Inc.
    Inventors: Koji Kawasaki, Takenori Matsue
  • Publication number: 20140320113
    Abstract: Provided is a sensor capable of holding a sensing element at a position of good sensitivity without requiring filling of the case with resin. The sensor includes a sensing element, a case accommodating the sensing element and having a detecting face for the sensing element in an outer face thereof, a holder accommodated inside the case together with the sensing element and pressing the sensing element toward the detecting face and a cable electrically connected to the sensing element. At least one of the holder and the case includes a contact portion deformable by a pressing force generated when the sensing element is pressed toward the detecting face.
    Type: Application
    Filed: January 10, 2013
    Publication date: October 30, 2014
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kazuhiro Adachi, Koji Kawasaki
  • Patent number: 8870362
    Abstract: An inkjet printer (1) has an inkjet head (7), a paper conveyance path (6) that conveys tractor feed paper (2) passed the printing position P of the inkjet head (7), and a pair of paper edge covers (21L, 21R) disposed on the opposite sides of the conveyance path portion passing the printing position P of the paper conveyance path (6). The paper edge covers (21L, 21R) are covers that cover and hide the edge portions (2L, 2R) where the sprocket holes (2a) of the tractor feed paper (2) conveyed passed the printing position P are formed from the inkjet head (7). The paper edge covers (21L, 21R) can reliably prevent problems such as nozzle clogging caused by paper dust from the sprocket holes (2a) at the edges of the tractor feed paper (2) clinging to the nozzle face (7a) of the inkjet head (7).
    Type: Grant
    Filed: August 24, 2011
    Date of Patent: October 28, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Koji Kawasaki, Masataka Hirabayashi
  • Patent number: 8835873
    Abstract: A continuous sterilization system is provided which reliably supports a sterilization target so that the sterilization target is not tipped over during a sterilization process and can stably ensure uniform irradiation periods on any portion of inner and outer surfaces and moreover, a portion sterilized by electron beam irradiation is not contaminated again. The continuous sterilization system is provided with a first conveying means, a first electron beam accelerator, a second conveying means, a second electron beam accelerator, and a third electron beam accelerator.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: September 16, 2014
    Assignee: Airex Co., Ltd.
    Inventors: Koji Kawasaki, Daisuke Kakuda, Mitsuo Kamino, Norihiko Tsuji, Jun Masudome
  • Publication number: 20140119081
    Abstract: A power conversion apparatus is applied to an assembled battery which is a series connection of a plurality of unit batteries, two or more and at least part of the plurality of unit batteries being selection objects. The apparatus includes a voltage output section which outputs voltage, opening and closing sections each of which is provided on each current path connecting each of the selection objects with the voltage output section and which is opened and closed to open and close the current path, and an operation section which operates the opening and closing sections so that the voltage output section outputs AC voltage.
    Type: Application
    Filed: October 25, 2013
    Publication date: May 1, 2014
    Applicants: NIPPON SOKEN, INC., DENSO CORPORATION
    Inventors: Hiroyasu BABA, Koji KAWASAKI, Yasuyuki HASEO, Hironori ASA
  • Publication number: 20140027651
    Abstract: A continuous sterilization system is provided which reliably supports a sterilization target so that the sterilization target is not tipped over during a sterilization process and can stably ensure uniform irradiation periods on any portion of inner and outer surfaces and moreover, a portion sterilized by electron beam irradiation is not contaminated again. The continuous sterilization system is provided with a first conveying means, a first electron beam accelerator, a second conveying means, a second electron beam accelerator, and a third electron beam accelerator.
    Type: Application
    Filed: October 24, 2012
    Publication date: January 30, 2014
    Applicant: Airex Co., Ltd.
    Inventors: Koji Kawasaki, Daisuke Kakuda, Mitsuo Kamino, Norihiko Tsuji, Jun Masudome
  • Patent number: 8622870
    Abstract: An in-vehicle power transmission apparatus is equipped with a plurality of power split rotors and a power transmission control mechanism. The power split rotors work to split power among a rotary electric machine such as a motor-generator, an internal combustion engine, and a driven wheel of the vehicle. If rotational energy, as outputted from the power split rotors, is defined as being positive in sign, the power split rotors are so assembled that when the power transmission control mechanism establishes transmission of the rotational energy that is positive in sign as the power from a first rotor that is one of the power split rotors to the internal combustion engine, the other power split rotors are so linked as to provide output rotational energies which are opposite in sign to each other. This enables the speed of the first rotor to be placed at substantially zero.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: January 7, 2014
    Assignees: Nippon Soken, Inc., Denso Corporation
    Inventor: Koji Kawasaki
  • Patent number: 8602933
    Abstract: A power transmission device includes a planetary gear set and a first and a second connecting mechanism. The planetary gear set receives power from a power source and outputs it to a power-driven member. The first connecting mechanism connects a first and a second rotor of the planetary gear set through a separate path. The second connecting mechanism connects the second rotor and a third rotor of the planetary gear set through a separate path. The controller is operable selectively in a first operation mode in which the second connecting mechanism is engaged, while the first connecting mechanism is disengaged and a second operation mode in which the second connecting mechanism is engaged, while the first connecting mechanism is disengaged. This ensures suitable mechanical connections among the power source, the power-driven member, and the power split mechanism which match with an operating condition of the power transmission device.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: December 10, 2013
    Assignees: Nippon Soken, Inc., Denso Corporation
    Inventors: Koji Kawasaki, Takenori Matsue, Yuji Tokudome
  • Patent number: 8591360
    Abstract: A power transmission apparatus for a vehicle which includes a first and a second planetary gear set to transmit power to a driven wheel. A ring gear of the first planetary gear set is coupled to the driven wheel. A carrier of the first planetary gear set is coupled to a ring gear of the second planetary gear set. A carrier and a sun gear of the second planetary gear set are so linked as to have signs of power which are opposite each other. A sign of speed of the ring gear of the second planetary gear set is reversed under the condition that the a sign of speed of a motor-generator is fixed, thereby reversing the sign of speed of the carrier of the first planetary gear set, which eliminate the circulation of power between the sun gear and the carrier of the first planetary gear set.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: November 26, 2013
    Assignees: Denso Corporation, Nippon Soken, Inc.
    Inventors: Koji Kawasaki, Takenori Matsue
  • Patent number: 8579748
    Abstract: An in-vehicle power transmission apparatus is equipped with a motor-generator working as an engine to drive a vehicle and a power split device made up of a plurality of power split rotors. A first one of the rotors is coupled to a driven wheel of the vehicle, while a second one of the rotors is coupled to an accessory such as an air compressor of an air conditioner. The speed of the second rotor is controllable independently of that of the driven wheel. This eases restrictions on the supply of power produced by the generator-motor to the accessory. Alternatively, the rotors are so linked that when the speed of the first rotor is not zero (0), the speed of the second rotor has one of zero (0) and a value other than zero (0), thus ensuring the stability in supplying the power to drive the vehicle to the accessory.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: November 12, 2013
    Assignee: Nippon Soken, Inc.
    Inventors: Koji Kawasaki, Takenori Matsue, Yuji Tokudome, Mitsuo Inagaki, Oyuki Ogawa
  • Publication number: 20130285650
    Abstract: A rotation speed detecting apparatus, including: an annular fixing member to be fixed to a support member configured to rotatably support a rotating object to be detected; a case mounted to the fixing member; a detecting portion abutting against an abutment portion provided in the case so as to be positioned with respect to the case for detecting a rotation speed of the rotating object to be detected; and a resin mold portion formed by resin molding and configured to fix the detecting portion to the case in a state in which the detecting portion abuts against the abutment portion of the case.
    Type: Application
    Filed: February 20, 2012
    Publication date: October 31, 2013
    Applicant: AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Kazuhiro Adachi, Kyoichi Okamura, Koji Kawasaki
  • Patent number: 8483020
    Abstract: A path mechanism and an information processing device having the path mechanism can guide disc media to a predetermined position without the data recording area of the disc being affected. The path mechanism has a stacker tray 101 that forms a guide path 130 through which media M having an annular data recording area can move by sliding. The stacker tray 101 has a pair of guide surfaces 125c and 126c that support an outside circumference part of the media M slidably in the direction of media M travel. The guide surfaces 125c and 126c are formed to a width W that is less than the width A of the non-data-recording area Y rendered on the outside circumference side of the annular data recording area on the data recording surface of the media M.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: July 9, 2013
    Assignee: Seiko Epson Corporation
    Inventors: Atsushi Nishioka, Koji Kawasaki
  • Publication number: 20130061567
    Abstract: An isolator device having a work chamber, air supply means for supplying air of a unidirectional airflow traveling from an upper part to a lower part in the work chamber, and air discharge means for discharging air of the unidirectional airflow from a lower part of the work chamber are provided, and moreover, a bulkhead provided in parallel with a peripheral wall portion of the work chamber along the air of the unidirectional airflow and longitudinal air outlets opened along a width direction of a lower end portion in a lower part of the lower end portion of the bulkhead and attached so as to oppose an air inlet portion by a filter unit for air purification is provided.
    Type: Application
    Filed: June 10, 2010
    Publication date: March 14, 2013
    Applicant: AIREX CO., LTD.
    Inventors: Koji Kawasaki, Minoru Miyamoto, Toshinaga Toda
  • Publication number: 20130037820
    Abstract: A nitrogen compound semiconductor light emitting element having an n-type layer, an active layer comprising AlGaInN and a p-type layer, emitting ultraviolet radiation with an emission peak wavelength of at most 400 nm and having a high emission intensity as well as a manufacturing method thereof are provided. In the nitrogen compound semiconductor light emitting element of the present invention having an n-type layer, an active layer and a p-type layer, the active layer consists of a nitrogen compound semiconductor layer with an emission peak wavelength of at most 400 nm comprising AlGaN, and the n-type layer has an n-type AlGaN layer comprising AlGaN and a GaN protective layer which does not contain Al and has a thickness of at least 5 nm. The active layer is formed on the protective layer. The manufacturing method comprises processes of growing the n-type AlGaN layer at a high substrate temperature of at least 1000° C.
    Type: Application
    Filed: March 17, 2011
    Publication date: February 14, 2013
    Applicant: USHIO DENKI KABUSHIKI KAISHA
    Inventors: Masashi Tsukihara, Koji Kawasaki
  • Publication number: 20120309584
    Abstract: After an engine starts, a rotation speed of the engine is fed back to a target rotation speed that is defined in response to requested power for the engine. In addition, by operating a gear ratio of a CVT, a rotation speed of an output side of a one-way bearing is fed back to the target rotation speed.
    Type: Application
    Filed: May 17, 2012
    Publication date: December 6, 2012
    Applicants: NIPPON SOKEN, INC., DENSO CORPORATION
    Inventors: Takenori Matsue, Koji Kawasaki, Masanori Sugiura
  • Publication number: 20120249656
    Abstract: A printer capable of preventing clogging the printhead nozzles due to paper dust produced from sprocket holes in continuous paper, and preventing the printhead from ejecting ink droplets except on the continuous paper, has a printhead that ejects ink droplets toward continuous paper having sprocket holes formed along both sides of the paper width; a cover member that covers the edge part of the width of the continuous paper where sprocket holes are formed in the range of the printhead in the conveyance direction of the continuous paper, and can move in the paper width direction; and a detection mechanism that detects the position of the cover member in the paper width direction.
    Type: Application
    Filed: March 30, 2012
    Publication date: October 4, 2012
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Koji Kawasaki, Shuhei Kurotobi, Ichimi Masuda
  • Patent number: 8147366
    Abstract: The hybrid vehicle includes the engine capable of outputting power to the drive gear; the motors MG1 and MG2; the CVT; the planetary gear mechanism having the sun gear connected to the secondary shaft of the CVT, the ring gear capable of rotating in the direction opposite to the rotational direction of drive gear in conjunction with the drive gear, and the carrier connected the carrier shaft as the drive shaft; the clutch C1 that performs a connection and releases the connection between the primary shaft of the CVT and the motor MG1; the clutch C2 that performs a connection and releases the connection between the motor MG1 and the drive gear; and the brake B1 capable of non-rotatably fixing the sun gear of the planetary gear mechanism.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: April 3, 2012
    Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Soken, Inc.
    Inventors: Koji Kawasaki, Mitsuo Inagaki
  • Patent number: D692029
    Type: Grant
    Filed: April 10, 2013
    Date of Patent: October 22, 2013
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Kazuhiko Hiraoka, Masashi Nakanishi, Koji Kawasaki, Tsuyoshi Takayama