Patents by Inventor Tetsuya Yamashita

Tetsuya Yamashita 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: 20110079042
    Abstract: Disclosed is a non-azeotropic refrigerant mixture containing tetrafluoropropane as a high-boiling refrigerant and a refrigeration cycle apparatus in which a non-azeotropic refrigerant mixture containing tetrafluoropropane as a high-boiling refrigerant circulates through a refrigeration cycle so as to avoid occurrence of negative pressure in a low-pressure circuit. The non-azeotropic refrigerant mixture is characterized in that a mixing ratio of a high-boiling refrigerant and a low-boiling refrigerant is determined so that a saturated vapor line where pressure is 0.00 MPa is not higher than ?45° C. in a low-pressure circuit formed between the decompressor to the compressor.
    Type: Application
    Filed: June 12, 2009
    Publication date: April 7, 2011
    Applicant: Mitsubishi Electric Corporation
    Inventors: Tetsuya Yamashita, Akihiro Nishida, Hirokazu Taniguchi, Takashi Okazaki, Yoshihiro Sumida, Masato Yosomiya, Kazuhiko Shiraishi
  • Publication number: 20110067421
    Abstract: A ventilation and air conditioning apparatus for a vehicle includes: a ventilator that sucks air from outside the vehicle; an air conditioner that conditions air inside the vehicle; a duct for fresh outside air that connects the ventilator with the air conditioner so as to supply the air that the ventilator has sucked from outside the vehicle to the air conditioner; and a duct for conditioned air that supplies the conditioned air blown out from the air conditioner to inside the vehicle. The duct for fresh outside air is branched so as to be connected to the duct for conditioned air. With this configuration, even if the operation of the air conditioner is stopped due to, e.g., a leakage of a flammable refrigerant, an amount of ventilation can be secured in the vehicle.
    Type: Application
    Filed: June 11, 2009
    Publication date: March 24, 2011
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Kazuhiko Shiraishi, Hirokazu Taniguchi, Yoshihiro Sumida, Akihiro Nishida, Masato Yosomiya, Tetsuya Yamashita, Takashi Okazaki
  • Publication number: 20100282455
    Abstract: A heat exchanger is used which has heat transfer tubes acting as flow paths of a refrigerant and metal fins having pores opened inward from the surfaces thereof for adsorbing and desorbing moisture in air within the range of a relative pressure of 0.1 to 0.9 so as to transfer heat of the heat transfer tubes to air, wherein the pores have a diameter of 1 to 20 nm and a depth of 1 to 100 ?m.
    Type: Application
    Filed: July 25, 2008
    Publication date: November 11, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Takeyuki Maegawa, Hiroyuki Morimoto, Takeshi Sugimoto, Tetsuya Yamashita, Koji Yamashita, Fumio Matsuoka
  • Patent number: 7827819
    Abstract: An indoor unit of an air conditioner is capable of both enhancing the design thereof and preventing the reduction of the air blowing performance. The indoor unit of an air conditioner has a front grill and a design panel. The front grill is provided with an outlet. A front panel covers the outlet in the front view during shutdown, and moves so as to open the outlet during operation.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: November 9, 2010
    Assignee: Daikin Industries, Ltd.
    Inventors: Tetsuya Yamashita, Tatsuhiko Akai, Takashi Doi, Toshiyuki Natsume
  • Publication number: 20100223442
    Abstract: Provided is a computer system for identifying all physical resources which have been allocated to logical units before to be subject to shredding and for performing shredding on the identified physical resources. All the physical resources related to the physical resources specified by a user to be subject to data erasing are selected using usage history for the storage system. Moreover, a shredding task for the selected physical resources is generated according to configuration information of the storage system and shredding is performed based on the generated task. Consequently, the data is completely erased.
    Type: Application
    Filed: April 17, 2009
    Publication date: September 2, 2010
    Inventors: Tetsuya YAMASHITA, Daisuke SHINOHARA, Yukinori SAKASHITA, Jun NAKAJIMA, Yasutaka KONO
  • Patent number: 7758409
    Abstract: The present invention provides an indoor unit of an air conditioner, which is capable of improving the mounting accuracy between a front grill and a movable panel. An indoor unit of the air conditioner includes a main body casing, a front grill, a second panel, a driving machine, and an opening and closing mechanism. The front grill is provided forward of the main body casing and includes a first intake port. The second panel is capable of moving so as to open and close the first intake port. The driving machine is provided in the main body casing, and generates a driving force to move the second panel. The opening and closing mechanism is provided at the front grill, and moves the second panel by the driving force of the driving machine to open and close the first intake port.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: July 20, 2010
    Assignee: Daikin Industries, Ltd.
    Inventors: Tetsuya Yamashita, Tatsuhiko Akai, Takashi Doi, Toshiyuki Natsume, Atsushi Kataoka
  • Publication number: 20100170273
    Abstract: In a range of a wind velocity of 0.5 to 3.5 (m/s) in a refrigeration cycle, when combining absorbent having a small dependency on the wind velocity and the refrigeration cycle, it is not possible to vary dehumidification capability by changing the wind velocity and matching with an actual load is poor. In a refrigerating and air conditioning apparatus having a refrigerator 20 in which refrigerant is put, and having a compressor 20a for compressing the refrigerant, a condenser 20b, and a throttle device 20c, and an evaporator 20d, and a desiccant rotor 1, which is water adsorption means, an adsorbent is supported with the desiccant rotor 1, whose time constant at a water adsorption equilibrium becomes small as a wind velocity increases in the range of the wind velocity of 0.5 to 3.5 m/s, the condenser 20b is disposed upwind of the desiccant rotor 1, and the evaporator 20d is disposed downwind of the desiccant rotor 1.
    Type: Application
    Filed: September 20, 2007
    Publication date: July 8, 2010
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hiroyuki Morimoto, Takeshi Sugimoto, Fumio Matsuoka, Koji Yamashita, Tetsuya Yamashita, Kouji Fukui, Takeyuki Maegawa
  • Publication number: 20100107681
    Abstract: Heat exchangers 40, 40a, 40b for performing heat exchange between a refrigerant and air include fins 45, 45a, 45b for heat transfer, each of which has fine pores each having a diameter ranging from 1 to 3.5 nm for adsorbing water contained in the air by a capillary condensation phenomenon. Preferably, the fine pores are distributed having a different diameter in accordance with the position of the fins 45, 45a, 45b on the surface.
    Type: Application
    Filed: March 26, 2008
    Publication date: May 6, 2010
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroyuki Morimoto, Takeshi Sugimoto, Fumio Matsuoka, Koji Yamashita, Tetsuya Yamashita, Takeyuki Maegawa
  • Patent number: 7685284
    Abstract: When a communication malfunction occurs in the transmission line between routers, and operation is carried out by a backup system control device, IP telephone terminals can connect to the backup system control device through the use of an IP address that is previously acquired from the address management device and saved. When the transmission line has been restored, the IP telephone terminals reconnect to the address management device so that operation can be carried out using an IP address under the control of the address management device. In a system that is operated by DHCP, it is thereby possible to construct a network that can be operated without installing a DHCP server at each remote station.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: March 23, 2010
    Assignee: NEC Corporation
    Inventor: Tetsuya Yamashita
  • Publication number: 20100000243
    Abstract: To obtain a refrigeration air conditioning system having a dehumidifying function by means of a moisture adsorption means, allowing the moisture adsorption means to be regenerated by use of discharged condensation heat or other discharged heat of a low temperature range in the refrigeration cycle, and exerting stable cooling performance even at a dry-bulb temperature of 0° C. or less. A desiccant rotor 1, being a moisture adsorption means, is made to hold an adsorbent having pore sizes of 5 ?m or less, more preferably 20 nm or less, and furthermore preferably 1-1.4 nm in a space at a predetermined temperature range of a dry-bulb temperature of 0° C. or less.
    Type: Application
    Filed: September 4, 2007
    Publication date: January 7, 2010
    Applicant: Mitsubishi Electric Corporation
    Inventors: Hiroyuki Morimoto, Takeshi Sugimoto, Fumio Matsuoka, Tetsuya Yamashita, Koji Yamashita, Takeyuki Maegawa
  • Publication number: 20090321059
    Abstract: The present invention provides a heat exchanger, an air conditioning apparatus, and a method for manufacturing the heat exchanger capable of reducing the scattering of condensate water from curved portions to the downstream side in the direction of airflow. An indoor heat exchanger includes lower fins and upper fins. The upper fins are inclined in the direction of the airflow at an angle formed between the longitudinal axis of the upper fins and the vertical direction, the range of the angle being equal to or greater than the range of an angle formed between the longitudinal axis of the lower fins and the vertical direction, and the upper fins are disposed adjacent to top ends of the lower fins. The upper fins have curved portions that are curved in proximity to the portions bordering the top ends of the lower fins on the downstream side in the airflow direction F.
    Type: Application
    Filed: June 29, 2007
    Publication date: December 31, 2009
    Applicant: Daikin Industries, Ltd.
    Inventors: Masaaki Kitazawa, Takashi Doi, Tetsuya Yamashita, Shinji Nagaoka, Isao Ohgami
  • Publication number: 20090229247
    Abstract: It is suppressed that nanoparticles generated in an internal combustion engine are discharged into the atmosphere. In a cylinder or an exhaust system of the internal combustion engine, microparticles having a particle diameter larger than that of the nanoparticles are generated, and the nanoparticles generated in the internal combustion engine are adsorbed by the microparticles, thereby increasing the diameter of the nanoparticles. The microparticles can be generated in the cylinder as the soot, for example. Additionally, by providing a carbon microparticle generation device in the exhaust system, the microparticles can be generated, too. By making the nanoparticles adsorbed by the microparticles and increasing the diameter of the nanoparticles, discharging of the nanoparticles can be suppressed.
    Type: Application
    Filed: March 17, 2006
    Publication date: September 17, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroshi Ito, Kotaro Hayashi, Tetsuya Yamashita, Shinichi Takeshima
  • Patent number: 7565814
    Abstract: The present invention provides an indoor unit of an air conditioner, which is capable of improving the safety regarding the opening and closing movements of a movable panel. An indoor unit of an air conditioner includes a front grill, a second panel, a driving machine, and a second panel supporting member. The front grill is provided with a first intake port at a front thereof. The second panel is provided such that it covers the first intake port, opens the first intake port by moving away from the first intake port and closes the first intake port by moving close to the first intake port. The driving machine generates a driving force to move the second panel. The second panel supporting member has a gear portion and a plate member. The gear portion transmits the driving force of the driving machine to the second panel. The plate member is provided outside the gear portion, and covers a gap between the second panel and the front grill in a state in which the second panel is open.
    Type: Grant
    Filed: September 9, 2004
    Date of Patent: July 28, 2009
    Assignee: Daikin Industries, Ltd.
    Inventors: Tetsuya Yamashita, Tatsuhiko Akai, Takashi Doi, Atsushi Kataoka
  • Publication number: 20090139252
    Abstract: An indoor unit of an air conditioner is capable of both enhancing the design thereof and preventing the reduction of the air blowing performance. The indoor unit of an air conditioner has a front grill and a design panel. The front grill is provided with an outlet. A front panel covers the outlet in the front view during shutdown, and moves so as to open the outlet during operation.
    Type: Application
    Filed: September 9, 2004
    Publication date: June 4, 2009
    Inventors: Tetsuya Yamashita, Tatsuhiko Akai, Takashi Doi, Toshiyuki Natsume
  • Patent number: 7520126
    Abstract: In an internal combustion engine, an exhaust passage is provided with a NOx storing and decomposing catalyst (20). When burning fuel under a lean air-fuel ratio, the nitrogen monoxide is adsorbed by the NOx storing and decomposing catalyst (20) and disassociated. At this time, the disassociated oxygen is held in the form of oxygen ions O? on the NOx storing and decomposing catalyst (20). By making the air-fuel ratio rich and purging part of these oxygen ions O?, the remaining oxygen ions O? are also purged. Due to this, the NOx purification performance of the NOx storing and decomposing catalyst (20) is restored.
    Type: Grant
    Filed: February 12, 2004
    Date of Patent: April 21, 2009
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shinicihi Takeshima, Toshiaki Tanaka, Tetsuya Yamashita
  • Patent number: D603495
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: November 3, 2009
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Sata, Takashi Ikeda, Tetsuya Yamashita, Koji Asakura, Koichi Higashi
  • Patent number: D604400
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: November 17, 2009
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Sata, Takashi Ikeda, Tetsuya Yamashita, Koji Asakura, Koichi Higashi
  • Patent number: D605271
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: December 1, 2009
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Sata, Takashi Ikeda, Tetsuya Yamashita, Koji Asakura, Koichi Higashi
  • Patent number: D617886
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: June 15, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Sata, Takashi Ikeda, Tetsuya Yamashita, Koji Asakura, Koichi Higashi
  • Patent number: D617887
    Type: Grant
    Filed: April 23, 2009
    Date of Patent: June 15, 2010
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hiroshi Sata, Takashi Ikeda, Tetsuya Yamashita, Koji Asakura, Koichi Higashi