Patents by Inventor Kazunari Maeda

Kazunari Maeda 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: 11231082
    Abstract: The hydraulic damping device includes: a cylinder storing fluid; a piston configured to form a channel through which the fluid flows along with relative movement of a rod relative to the cylinder in a specific direction; a valve having elasticity, the valve being configured to open and close the channel in the piston; a movement permitting part configured to permit the valve to move between a contact position and a spaced position, the contact position being a position where the valve contacts the piston, the spaced position being a position where the valve is spaced from the piston; a restricting part configured to restrict bending of the valve at the spaced position; and a pressing part having elasticity, the pressing part being configured to press the valve against the piston.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: January 25, 2022
    Assignee: Hitachi Astemo, Ltd.
    Inventors: Gota Nakano, Kazunari Maeda, Hiroshi Endo, Seiryo Konakai
  • Patent number: 11199238
    Abstract: The hydraulic damping device includes: a cylinder storing fluid; a piston configured to form a channel through which the fluid flows along with relative movement of a rod relative to the cylinder in a specific direction; a valve having elasticity, the valve being configured to open and close the channel in the piston; a movement permitting part configured to permit the valve to move between a contact position and a spaced position, the contact position being a position where the valve contacts the piston, the spaced position being a position where the valve is spaced from the piston; a restricting part configured to restrict bending of the valve at the spaced position; and an imparting part having elasticity, the imparting part being configured to impart, to the valve, a load that is uneven in a circumferential direction of the valve and directed toward the piston.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: December 14, 2021
    Assignee: Showa Corporation
    Inventors: Gota Nakano, Kazunari Maeda, Hiroshi Endo, Seiryo Konakai
  • Patent number: 11162554
    Abstract: The hydraulic damping device includes: a cylinder storing fluid; a piston configured to form a channel through which the fluid flows along with relative movement of a rod relative to the cylinder in a specific direction; a valve having elasticity, the valve being configured to open and close the channel in the piston; a movement permitting part configured to permit the valve to move between a contact position and a spaced position, the contact position being a position where the valve contacts the piston, the spaced position being a position where the valve is spaced from the piston; a restricting part configured to restrict bending of the valve at the spaced position; and an imparting part having elasticity, the imparting part being configured to impart, to the valve, a load that is uneven in a circumferential direction of the valve and directed toward the piston.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: November 2, 2021
    Assignee: Showa Corporation
    Inventors: Gota Nakano, Kazunari Maeda, Hiroshi Endo, Seiryo Konakai
  • Publication number: 20200080613
    Abstract: The hydraulic damping device includes: a cylinder storing fluid; a piston configured to form a channel through which the fluid flows along with relative movement of a rod relative to the cylinder in a specific direction; a valve having elasticity, the valve being configured to open and close the channel in the piston; a movement permitting part configured to permit the valve to move between a contact position and a spaced position, the contact position being a position where the valve contacts the piston, the spaced position being a position where the valve is spaced from the piston; a restricting part configured to restrict bending of the valve at the spaced position; and a pressing part having elasticity, the pressing part being configured to press the valve against the piston.
    Type: Application
    Filed: May 10, 2017
    Publication date: March 12, 2020
    Applicant: Showa Corporation
    Inventors: Gota NAKANO, Kazunari MAEDA, Hiroshi ENDO, Seiryo KONAKAI
  • Publication number: 20190390731
    Abstract: The hydraulic damping device includes: a cylinder storing fluid; a piston configured to form a channel through which the fluid flows along with relative movement of a rod relative to the cylinder in a specific direction; a valve having elasticity, the valve being configured to open and close the channel in the piston; a movement permitting part configured to permit the valve to move between a contact position and a spaced position, the contact position being a position where the valve contacts the piston, the spaced position being a position where the valve is spaced from the piston; a restricting part configured to restrict bending of the valve at the spaced position; and an imparting part having elasticity, the imparting part being configured to impart, to the valve, a load that is uneven in a circumferential direction of the valve and directed toward the piston.
    Type: Application
    Filed: May 10, 2017
    Publication date: December 26, 2019
    Applicant: Showa Corporation
    Inventors: Gota NAKANO, Kazunari MAEDA, Hiroshi ENDO, Seiryo KONAKAI
  • Publication number: 20100157304
    Abstract: A lubricant deterioration detecting device has a light emitting unit and a light receiving unit so arranged as to define a gap therebetween for accommodating a lubricant forming an object to be detected, and a determining circuit for determining a light transmittance of the lubricant in reference to an output from the light receiving unit to thereby detect a status of deterioration of the lubricant.
    Type: Application
    Filed: January 16, 2007
    Publication date: June 24, 2010
    Applicant: NTN CORPORATION
    Inventors: Toru Takahashi, Akio Nakajima, Kazunari Maeda, Kouyou Suzuki
  • Publication number: 20100156936
    Abstract: In a computer including a controller, a storage unit, an input unit, and a display unit, the controller displays, on the display unit, a similar shape search screen for searching a partial shape (second shape) similar to a partial shape (first shape) which composes an analysis model. When the first shape is specified using the input unit, the controller searches a feature shape database of the storage unit for the second shape similar to the first shape, and displays the search result on the display unit. The controller specifies geometric information of the first shape corresponding to geometric information of the searched second shape, deforms the analysis model based on the specified geometric information and the deformation pattern information of the second shape stored in the feature shape deformation database of the storage unit, and displays the analysis model after the deformation on the display unit.
    Type: Application
    Filed: September 4, 2009
    Publication date: June 24, 2010
    Inventors: Kazunari MAEDA, Makoto ONODERA
  • Publication number: 20070000743
    Abstract: A damping force adjustable hydraulic shock absorber is provided with a first passage connected to a rod side chamber, a second passage connected to a piston side chamber, a main passage combining the first passage and the second passage so as to communicate with a reservoir, a first check valve allowing only an oil flow to the main passage from the rod side chamber via the first passage, and a second check valve allowing only an oil flow to the main passage from the piston side chamber via the second passage, and a proportional solenoid type relief valve provided in the main passage, and adjusting a damping force by controlling a relief pressure of the oil flow to the reservoir from the rod side chamber or a relief pressure of the oil flow to the reservoir from the piston side chamber.
    Type: Application
    Filed: December 13, 2005
    Publication date: January 4, 2007
    Applicant: Showa Corporation
    Inventors: Tutomu Naitou, Katsushi Tanaka, Kazunari Maeda
  • Patent number: 7080523
    Abstract: In an air conditioning apparatus for a vehicle, a distance between the vehicle and a forward vehicle is detected. When the distance is equal to or less than a predetermined distance, a pollutant threshold of a concentration of exhaust gas pollutants is changed from a first level to a second level that is lower than the first level. Then, it is determined whether the concentration of exhaust gas pollutants is equal to or less than the second level. When the concentration is greater than the second level, an inside air mode is selected. When it is determined that the distance is greater than the predetermined distance, it is determined whether the concentration is equal to or greater than the first level of the pollutant threshold. When the concentration is greater than the first level, the inside air mode is selected.
    Type: Grant
    Filed: August 24, 2004
    Date of Patent: July 25, 2006
    Assignee: DENSO Corporation
    Inventors: Kazunari Maeda, Yukiya Sassa, Makoto Sakamaki
  • Publication number: 20050044863
    Abstract: In an air conditioning apparatus for a vehicle, a distance between the vehicle and a forward vehicle is detected. When the distance is equal to or less than a predetermined distance, a pollutant threshold of a concentration of exhaust gas pollutants is changed from a first level to a second level that is lower than the first level. Then, it is determined whether the concentration of exhaust gas pollutants is equal to or less than the second level. When the concentration is greater than the second level, an inside air mode is selected. When it is determined that the distance is greater than the predetermined distance, it is determined whether the concentration is equal to or greater than the first level of the pollutant threshold. When the concentration is greater than the first level, the inside air mode is selected.
    Type: Application
    Filed: August 24, 2004
    Publication date: March 3, 2005
    Inventors: Kazunari Maeda, Yukiya Sassa, Makoto Sakamaki
  • Patent number: 6035526
    Abstract: An apparatus for repairing a defect recognizes a defective portion of a color filter using an image processing mechanism, applies ink to the recognized defective portion of the color filter using a needle for applying ink of an ink application mechanism, hardens the applied ink using an ink hardening mechanism, and removes an unnecessary portion of the applied ink by irradiating laser beam from a laser irradiation mechanism.
    Type: Grant
    Filed: November 18, 1997
    Date of Patent: March 14, 2000
    Assignee: NTN Corporation
    Inventors: Masahiro Saruta, Akihiro Yamanaka, Hiroshi Deguchi, Takayoshi Ozaki, Kazunari Maeda
  • Patent number: 5502497
    Abstract: A television broadcasting system intended to bestow a certain level of selectivity on compression systems and multiplexing systems for broadcast program pictures. A transmitting equipment transmits the broadcast program pictures, and transmits control information on transmission systems for the transmitted broadcast program pictures. A receiving equipment includes a reception module which receives a program channel having a plurality of sorts of video information multiplexed therein, selected by a viewer, and also the control information concerning the selected program channel. A reception controller commands a signal separator to produce the outputs of the video information interleaved in those positions of the program channel which are designated by the control information. Besides, the reception controller sends a decoder a decoding program contained in the control information.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 26, 1996
    Assignee: Hitachi, Ltd.
    Inventors: Kimiya Yamaashi, Masayuki Tani, Koichiro Tanikoshi, Masayasu Futakawa, Shinya Tanifuji, Atsushi Kawabata, Norito Watanabe, Kazunari Maeda
  • Patent number: 5171963
    Abstract: A laser processing device includes a Z stage movable in the up and down directions with respect to a XY stage movable in the X, Y directions on which an object to be processed is provided. The surface of the object to be processed is image-sensed by a CCD camera through a lens of an electrically-driven revolver attached to the Z stage, which is projected in a monitor. When a defect of the object is displayed in the monitor, a laser beam is radiated to a defective portion of the object from a laser head provided in the Z stage and the defective portion is removed.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: December 15, 1992
    Assignee: NTN Corporation
    Inventors: Masahiro Saruta, Tetsuji Sagisaka, Kazunari Maeda, Takumi Yashiki
  • Patent number: 5128840
    Abstract: A bicycle luminaire has first permanent magnets on spokes of a bicycle wheel, and a detection unit fixed to a stationary portion of the bicycle. The detection unit has a second permanent magnet, a Wiegand wire and a sensing coil. In place of the first magnets, Wiegand wires can be disposed on the spokes, and the detection unit can be formed with two magnets and sensing coil.
    Type: Grant
    Filed: July 6, 1990
    Date of Patent: July 7, 1992
    Inventors: Hiroshi Seki, Kazunari Maeda