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).
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Patent number: 8944555Abstract: 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: GrantFiled: March 30, 2012Date of Patent: February 3, 2015Assignee: Seiko Epson CorporationInventors: Koji Kawasaki, Shuhei Kurotobi, Ichimi Masuda
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Patent number: 8915984Abstract: 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: GrantFiled: June 10, 2011Date of Patent: December 23, 2014Assignee: Airex Co., LtdInventors: Koji Kawasaki, Minoru Miyamoto, Toshinaga Toda
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Patent number: 8900080Abstract: 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: GrantFiled: July 29, 2011Date of Patent: December 2, 2014Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Koji Kawasaki, Takenori Matsue
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Publication number: 20140320113Abstract: 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: ApplicationFiled: January 10, 2013Publication date: October 30, 2014Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Kazuhiro Adachi, Koji Kawasaki
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Patent number: 8870362Abstract: 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: GrantFiled: August 24, 2011Date of Patent: October 28, 2014Assignee: Seiko Epson CorporationInventors: Koji Kawasaki, Masataka Hirabayashi
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Patent number: 8835873Abstract: 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: GrantFiled: October 24, 2012Date of Patent: September 16, 2014Assignee: Airex Co., Ltd.Inventors: Koji Kawasaki, Daisuke Kakuda, Mitsuo Kamino, Norihiko Tsuji, Jun Masudome
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Publication number: 20140119081Abstract: 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: ApplicationFiled: October 25, 2013Publication date: May 1, 2014Applicants: NIPPON SOKEN, INC., DENSO CORPORATIONInventors: Hiroyasu BABA, Koji KAWASAKI, Yasuyuki HASEO, Hironori ASA
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Publication number: 20140027651Abstract: 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: ApplicationFiled: October 24, 2012Publication date: January 30, 2014Applicant: Airex Co., Ltd.Inventors: Koji Kawasaki, Daisuke Kakuda, Mitsuo Kamino, Norihiko Tsuji, Jun Masudome
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Patent number: 8622870Abstract: 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: GrantFiled: November 10, 2009Date of Patent: January 7, 2014Assignees: Nippon Soken, Inc., Denso CorporationInventor: Koji Kawasaki
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Patent number: 8602933Abstract: 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: GrantFiled: August 2, 2010Date of Patent: December 10, 2013Assignees: Nippon Soken, Inc., Denso CorporationInventors: Koji Kawasaki, Takenori Matsue, Yuji Tokudome
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Patent number: 8591360Abstract: 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: GrantFiled: November 16, 2010Date of Patent: November 26, 2013Assignees: Denso Corporation, Nippon Soken, Inc.Inventors: Koji Kawasaki, Takenori Matsue
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Patent number: 8579748Abstract: 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: GrantFiled: April 21, 2010Date of Patent: November 12, 2013Assignee: Nippon Soken, Inc.Inventors: Koji Kawasaki, Takenori Matsue, Yuji Tokudome, Mitsuo Inagaki, Oyuki Ogawa
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Publication number: 20130285650Abstract: 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: ApplicationFiled: February 20, 2012Publication date: October 31, 2013Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Kazuhiro Adachi, Kyoichi Okamura, Koji Kawasaki
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Patent number: 8483020Abstract: 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: GrantFiled: August 26, 2009Date of Patent: July 9, 2013Assignee: Seiko Epson CorporationInventors: Atsushi Nishioka, Koji Kawasaki
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Publication number: 20130061567Abstract: 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: ApplicationFiled: June 10, 2010Publication date: March 14, 2013Applicant: AIREX CO., LTD.Inventors: Koji Kawasaki, Minoru Miyamoto, Toshinaga Toda
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Publication number: 20130037820Abstract: 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: ApplicationFiled: March 17, 2011Publication date: February 14, 2013Applicant: USHIO DENKI KABUSHIKI KAISHAInventors: Masashi Tsukihara, Koji Kawasaki
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Publication number: 20120309584Abstract: 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: ApplicationFiled: May 17, 2012Publication date: December 6, 2012Applicants: NIPPON SOKEN, INC., DENSO CORPORATIONInventors: Takenori Matsue, Koji Kawasaki, Masanori Sugiura
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Publication number: 20120249656Abstract: 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: ApplicationFiled: March 30, 2012Publication date: October 4, 2012Applicant: SEIKO EPSON CORPORATIONInventors: Koji Kawasaki, Shuhei Kurotobi, Ichimi Masuda
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Patent number: 8147366Abstract: 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: GrantFiled: April 2, 2009Date of Patent: April 3, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Soken, Inc.Inventors: Koji Kawasaki, Mitsuo Inagaki
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Patent number: D692029Type: GrantFiled: April 10, 2013Date of Patent: October 22, 2013Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Kazuhiko Hiraoka, Masashi Nakanishi, Koji Kawasaki, Tsuyoshi Takayama