Patents by Inventor Hideshi Tanaka

Hideshi Tanaka 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: 11073302
    Abstract: This indoor unit of an air conditioner includes an indoor unit main body having an inlet and an outlet; a heat exchanger; and a cross-flow fan configured to blow out air, which has undergone heat exchange by the heat exchanger. The cross-flow fan has a blow-out flow path that is configured such that a cross-sectional area gradually increases downward, with the blow-out flow path guiding blown-out air to the outlet. When a distance in the lower wall from an intersection, where a tangent inscribing a tongue of the cross-flow fan orthogonally intersects the lower wall, to a lower end of the indoor unit main body is referred to as distance L, a ratio (L/D) of the distance L to outer diameter D of an impeller of the cross-flow fan is less than 0.05. At least part of the blow-out flow path is formed to project out of the outlet at least when air conditioning operation is performed.
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: July 27, 2021
    Assignee: DAIKIN INDUSTRIES, LTD.
    Inventors: Hironobu Teraoka, Hideshi Tanaka, Satoshi Nakai, Masahito Higashida, Masafumi Uda, Kaname Maruyama, Zuozhou Chen
  • Publication number: 20210048220
    Abstract: This indoor unit of an air conditioner includes an indoor unit main body having an inlet and an outlet; a heat exchanger; and a cross-flow fan configured to blow out air, which has undergone heat exchange by the heat exchanger. The cross-flow fan has a blow-out flow path that is configured such that a cross-sectional area gradually increases downward, with the blow-out flow path guiding blown-out air to the outlet. When a distance in the lower wall from an intersection, where a tangent inscribing a tongue of the cross-flow fan orthogonally intersects the lower wall, to a lower end of the indoor unit main body is referred to as distance L, a ratio (L/D) of the distance L to outer diameter D of an impeller of the cross-flow fan is less than 0.05. At least part of the blow-out flow path is formed to project out of the outlet at least when air conditioning operation is performed.
    Type: Application
    Filed: February 26, 2019
    Publication date: February 18, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hironobu TERAOKA, Hideshi TANAKA, Satoshi NAKAI, Masahito HIGASHIDA, Masafumi UDA, Kaname MARUYAMA, Zuozhou CHEN
  • Publication number: 20210033288
    Abstract: This indoor unit of an air conditioner includes an indoor unit body including an inlet and an outlet; a heat exchanger that performs heat exchange on air drawn in from the inlet; and a cross-flow fan configured to blow out air, which has undergone heat exchange performed by the heat exchanger from the outlet. The cross-flow fan includes a blow-out flow path formed by a lower wall, left and right side walls, and an upper wall so that a cross-sectional area gradually increases downward, with the blow-out flow path guiding blown-out air to the outlet. The two side walls are arranged to project out of the outlet at least when an air conditioning operation is performed.
    Type: Application
    Filed: February 26, 2019
    Publication date: February 4, 2021
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Hironobu TERAOKA, Hideshi TANAKA, Satoshi NAKAI, Masahito HIGASHIDA, Masafumi UDA, Kaname MARUYAMA, Zuozhou CHEN
  • Patent number: 9638195
    Abstract: A cross flow fan includes a support plate and an impeller with a plurality of blades disposed on the support plate at predetermined intervals. On each blade, a radius of a pressure surface arc is greater than a radius of a suction surface arc, a radius of an inner peripheral side arc is greater than a radius of an outer peripheral side arc, and a region of maximum thickness is located 40% to 60% from the inner peripheral side arc in the lengthwise direction. The blades are disposed such that the inner peripheral side arcs are positioned on an inner peripheral side of the support plate and the outer peripheral side arcs are positioned on an outer peripheral side of the support plate. A flow path width between the plurality of blades gradually decreases from the inner peripheral side toward the outer peripheral side of the support plate.
    Type: Grant
    Filed: November 1, 2012
    Date of Patent: May 2, 2017
    Assignees: SHANGHAI JIAOTONG UNIVERSITY, Daikin Industries, Ltd.
    Inventors: Jie Tian, Hua Ouyang, You Li, Hironobu Teraoka, Shimei Tei, Hideshi Tanaka
  • Patent number: 9447790
    Abstract: A cross-flow fan includes a disc-shaped or circular annular support plate, plural blades extending in a lengthwise direction from the support plate, and an auxiliary ring. The auxiliary ring has a ring portion that is positioned on a lengthwise direction intermediate section of the plural blades and is disposed on an outside of outer ends of the plural blades, and plural connection portions that extend from the ring portion as far as spaces between adjacent blades of the plural blades and are joined to the blades in the spaces between adjacent blades.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: September 20, 2016
    Assignee: Daikin Industries, Ltd.
    Inventors: Satoshi Nakai, Hideshi Tanaka, Yoshinori Kagawa, Kazuhiro Matsumoto, Kazuya Nishimura
  • Publication number: 20150252816
    Abstract: A cross-flow fan includes a disc-shaped or circular annular support plate, plural blades extending in a lengthwise direction from the support plate, and an auxiliary ring. The auxiliary ring has a ring portion that is positioned on a lengthwise direction intermediate section of the plural blades and is disposed on an outside of outer ends of the plural blades, and plural connection portions that extend from the ring portion as far as spaces between adjacent blades of the plural blades and are joined to the blades in the spaces between adjacent blades.
    Type: Application
    Filed: August 29, 2013
    Publication date: September 10, 2015
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Satoshi Nakai, Hideshi Tanaka, Yoshinori Kagawa, Kazuhiro Matsumoto, Kazuya Nishimura
  • Publication number: 20140301825
    Abstract: A cross flow fan includes a support plate and an impeller with a plurality of blades disposed on the support plate at predetermined intervals. On each blade, a radius of a pressure surface arc is greater than a radius of a suction surface arc, a radius of an inner peripheral side arc is greater than a radius of an outer peripheral side arc, and a region of maximum thickness is located 40% to 60% from the inner peripheral side arc in the lengthwise direction. The blades are disposed such that the inner peripheral side arcs are positioned on an inner peripheral side of the support plate and the outer peripheral side arcs are positioned on an outer peripheral side of the support plate. A flow path width between the plurality of blades gradually decreases from the inner peripheral side toward the outer peripheral side of the support plate.
    Type: Application
    Filed: November 1, 2012
    Publication date: October 9, 2014
    Inventors: Jie Tian, Hua Ouyang, You Li, Hironobu Teraoka, Shimei Tei, Hideshi Tanaka
  • Patent number: 8177484
    Abstract: An impeller of a blower is disposed with circular support plates that are made of a resin and rotate about an axis of rotation and a plurality of blades that are made of a resin. The blades are disposed on outer peripheral portions of the circular support plates so as to be parallel to an axis of rotation, and serrated shapes are formed on the blades by cutting out blade tips at plural places. Additionally, a step is formed in a blade face of each of the blades at a position a predetermined distance from the blade tip where the serrated shape is formed.
    Type: Grant
    Filed: September 26, 2006
    Date of Patent: May 15, 2012
    Assignee: Daikin Industries, Ltd.
    Inventors: Kazuya Haraguchi, Yoshinori Kagawa, Hideshi Tanaka, Kouzou Yoshinaga
  • Patent number: 7815419
    Abstract: An impeller is provided for a blower having a blade (15), a plurality of notches (17) provided at predetermined intervals on a side edge of the blade (15), and a plurality of smooth portions (18) each provided between a pair of the notches (17). Since a transverse vortex discharged from the side edge of the blade (15), and on a large scale, is organized by vertical vortexes formed in the notches (17) on a small scale so as to be segmented into stable transverse vortexes, it becomes possible to reduce aerodynamic noise.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: October 19, 2010
    Assignee: Daikin Industries, Ltd.
    Inventors: Hironobu Teraoka, Hirohiko Matsushita, Tadashi Ohnishi, Hideshi Tanaka, Kouzou Yoshinaga
  • Publication number: 20090290986
    Abstract: An impeller of a blower is disposed with circular support plates that are made of a resin and rotate about an axis of rotation and a plurality of blades that are made of a resin. The blades are disposed on outer peripheral portions of the circular support plates so as to be parallel to an axis of rotation, and serrated shapes are formed on the blades by cutting out blade tips at plural places. Additionally, a step is formed in a blade face of each of the blades at a position a predetermined distance from the blade tip where the serrated shape is formed.
    Type: Application
    Filed: September 26, 2006
    Publication date: November 26, 2009
    Applicant: DAIKIN INDUSTRIES, LTD.
    Inventors: Kazuya Haraguchi, Yoshinori Kagawa, Hideshi Tanaka, Kouzou Yoshinaga
  • Publication number: 20070177971
    Abstract: An impeller is provided for a blower having a blade (15), a plurality of notches (17) provided at predetermined intervals on a side edge of the blade (15), and a plurality of smooth portions (18) each provided between a pair of the notches (17). Since a transverse vortex discharged from the side edge of the blade (15), and on a large scale, is organized by vertical vortexes formed in the notches (17) on a small scale so as to be segmented into stable transverse vortexes, it becomes possible to reduce aerodynamic noise.
    Type: Application
    Filed: September 30, 2005
    Publication date: August 2, 2007
    Inventors: Hironobu Teraoka, Hirohiko Matsushita, Tadashi Ohnishi, Hideshi Tanaka, Kouzou Yoshinaga
  • Patent number: 5897254
    Abstract: In a melt-type thermal transfer printing apparatus, an ink ribbon is brought into contact with a recording medium. A thermal head presses the ink ribbon. By controlling an electric power supplied to the thermal head, a melt or fusion area of ink is controlled so as to obtain a multi-gradational image on the recording medium. The recording medium is a porous surfaced medium having a multilayered porous layer containing numerous pores having a porous diameter in a range up to about 25 .mu.m.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: April 27, 1999
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Hideshi Tanaka, Yuji Kikuchi
  • Patent number: 5668586
    Abstract: A thermal transfer recording medium 2, used for a hot-melting-type thermal transfer print system using a hot-melting-type ink, comprises a substrate 2b, and a multi-grooved layer 2a formed on this substrate 2b. A plurality of thin grooves 2a1 are formed on a surface of the multi-grooved layer 2a. Each thin groove 2a1 has a width of 1-10 .mu.m and a length longer than a pixel at least in an auxiliary scanning direction. When a hot-melting-type ink 1a is transferred onto the thermal transfer recording medium 2, the ink 1a smoothly permeates into the thin groove 2a1 and extends along the elongated recess thereof, thereby providing an excellent multi-gradational image with excellent resolution and quality.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: September 16, 1997
    Assignee: Victor Company of Japan, Ltd.
    Inventor: Hideshi Tanaka
  • Patent number: 5521626
    Abstract: A fusion-type thermal transfer printing system using an ink ribbon having a thin film and a heat fusible ink applied on the thin film at an ink application rate of 2.5 g/m.sup.2 or less and a porous-surface recording medium having a substrate and a porous-surface layer formed on the substrate, diameters of pores in the porous-surface layer being from 1 to 10 .mu.m. The printing system has a thermal head provided with a plurality of heating resistors formed in a line at regular intervals of 8 dot/mm or less, temperature gradient of each of the heated heating resistors being such that temperature is the highest at a middle portion thereof and changes decreasingly toward ends thereof and a gradation control circuit for controlling ink fusion areas heated by the heating resistors by controlling intensity of current passed through the thermal head.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: May 28, 1996
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Hideshi Tanaka, Yoshiro Hakamada
  • Patent number: 5416470
    Abstract: The contact between a device under test (DUT) and a measuring terminal is accurately judged with a simple circuit for impedance measurement. The conduction detecting means injects a judging current into the voltage terminal (L.sub.P) for low voltage. When the device under test (DUT) and both the current terminal (L.sub.C) for low voltage and the voltage terminal (L.sub.P) for low voltage are normally contacted with each other, since the inverting input terminal of the inverting amplifier is virtually grounded, and the L.sub.C and L.sub.P are substantially kept at the ground potential, the contact judgment for L.sub.C and L.sub.P is made by detecting the potentials of L.sub.P. In addition, when the impedance measurement value is larger than the predetermined lowest limit value and the current measurement value is lower than the predetermined lowest limit value, the DUT and the current terminal (H.sub.C) for high voltage are considered to have improper contact with each other.
    Type: Grant
    Filed: October 27, 1992
    Date of Patent: May 16, 1995
    Assignee: Hewlett-Packard Company
    Inventors: Hideshi Tanaka, Yasuaki Komatsu, Nobuhiro Shitara, Naoko Ohtomo
  • Patent number: 5342132
    Abstract: The present invention discloses a method for thermally transferring an ink pattern to a recording medium, comprising the steps of preparing an ink sheet provided with a hot-melt and/or hot-sublimable ink layer and a transparent material sheet provided with a transparent hot-melt material layer, thermally producing an ink pattern on the transparent material layer of the transparent material sheet by heating the ink sheet with thermal head, and thermally transferring the ink pattern to the recording medium together with the transparent hot-melt material layer.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: August 30, 1994
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Hideshi Tanaka, Itsuo Takanashi, Shigeaki Tada, Toshinori Takahashi
  • Patent number: 5321363
    Abstract: A two-terminal circuit element measuring apparatus of the present invention is capable of distinguishing a loose connection between a DUT and the measuring apparatus from a high impedance in the DUT. The measuring apparatus is also capable of measuring the impedance of the DUT without altering the connections between the DUT and the measuring apparatus. The measuring apparatus applies both DC and AC current signals to the DUT so as to compensate any leakage current occurring within the three-wire cable connecting the DUT and the measuring apparatus. Because of the compensation, when both DC and AC current ammeters indicate substantially zero values, it is assured that a loose connection exists.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: June 14, 1994
    Assignee: Hewlett-Packard Company
    Inventors: Hideki Wakamatsu, Nobuo Nakata, Yohichi Kuboyama, Hideshi Tanaka
  • Patent number: 5319391
    Abstract: A thermal printing apparatus for printing input gradational images, characters and figures by using multilevel density which can appropriately regulate the levels of the densities representing the gradational images etc.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: June 7, 1994
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Toshinori Takahashi, Itsuo Takanashi, Hideshi Tanaka, Terumi Ohara, Kenichi Miyazaki, Hiroki Kitamura, Toru Nibe, Tadao Shinya, Yutaka Mizoguchi, Katsuhiko Terada
  • Patent number: 5300351
    Abstract: A heat-sensitive hot-melt image transfer sheet transfers an ink image to a recording sheet when selectively heated by the heating element of the thermal head of a thermal printer. The image transfer sheet comprises a base coated on a surface thereof with a matrix of circular hot-melt ink dots at a constant pitch. The hot-melt ink dots are selectively meltable with heat applied through the base by the heating elements for transferring an ink image to the recording sheet held against the matrix of hot-melt ink dots.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: April 5, 1994
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Toshinori Takahashi, Itsuo Takanashi, Hideshi Tanaka, Hiroki Kitamura, Toru Nibe, Tadao Shinya, Yutaka Mizoguchi, Katsuhiko Terada, Toshinori Takahashi, Itsuo Takanashi
  • Patent number: RE37726
    Abstract: The present invention discloses a method for thermally transferring an ink pattern to a recording medium, comprising the steps of preparing an ink sheet provided with a hot-melt and/or hot-sublimable ink layer and a transparent material sheet provided with a transparent hot-melt material layer, thermally producing an ink pattern on the transparent material layer of the transparent material sheet by heating the ink sheet with thermal head, and thermally transferring the ink pattern to the recording medium together with the transparent hot-melt material layer.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: June 4, 2002
    Assignee: Victor Company of Japan, Ltd.
    Inventors: Hideshi Tanaka, Itsuo Takanashi, Shigeaki Tada, Toshinori Takahashi