Patents by Inventor Jiro Maeda

Jiro 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: 7294304
    Abstract: There is disclosed a die for forming a honeycomb structure and a method of manufacturing the honeycomb structure by use of the die, in which variations of cell pitches are suppressed in a central portion and the vicinity of an outer periphery after drying and firing an extruded honeycomb structure, and the honeycomb structure having a uniform cell pitch can be manufactured. A die 1 for forming a honeycomb structure has a front surface provided with groovy slits 2 formed between cell blocks 3 and a back surface provided with back holes 4a communicating with the slits 2. The die 1 has a structure in which a pitch P of the adjacent cell blocks 3 is enlarged from a central portion of the front surface toward an outer periphery in a stepwise manner.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: November 13, 2007
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukihisa Wada, Tomohiro Iida, Jiro Maeda
  • Publication number: 20060103058
    Abstract: There is disclosed a die for forming a honeycomb structure and a method of manufacturing the honeycomb structure by use of the die, in which variations of cell pitches are suppressed in a central portion and the vicinity of an outer periphery after drying and firing an extruded honeycomb structure, and the honeycomb structure having a uniform cell pitch can be manufactured. A die 1 for forming a honeycomb structure has a front surface provided with groovy slits 2 formed between cell blocks 3 and a back surface provided with back holes 4a communicating with the slits 2. The die 1 has a structure in which a pitch P of the adjacent cell blocks 3 is enlarged from a central portion of the front surface toward an outer periphery in a stepwise manner.
    Type: Application
    Filed: November 8, 2005
    Publication date: May 18, 2006
    Applicant: NGK INSULATORS, LTD.
    Inventors: Yukihisa Wada, Tomohiro Iida, Jiro Maeda
  • Patent number: 6877390
    Abstract: A vehicle range changeover mechanism is driven in response to operation of a shift lever. The range changeover mechanism has an output sector gear that is unrotatably connected to a range control shaft, and a position detecting sensor, a portion of which that is interlocked with and connected to the range control shaft. Looseness between the output sector gear and the position detecting sensor portion is eliminated by provision of a leaf or spring plate, thereby assuring rotation of the position detecting sensor portion corresponding one to one with the rotational motion of the range control shaft.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: April 12, 2005
    Assignee: Aisin AW Co., Ltd.
    Inventors: Shigeo Tsuzuki, Jiro Maeda, Naoki Ohkoshi
  • Patent number: 6866611
    Abstract: A judging section judges whether or not ranges detected, respectively, by a first range detection section consisting of a first detection section and a position detecting sensor, and a second range detection section consisting of a second detection section; a C1 detecting sensor and a B1 detecting sensor are in mutual agreement, and when the detected ranges are not in mutual agreement, a failure judging section judges a failure of the first range detection section.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: March 15, 2005
    Assignee: Aisin AW Co., Ltd.
    Inventors: Shigeo Tsuzuki, Jiro Maeda, Naoki Ohkoshi
  • Publication number: 20040053743
    Abstract: A judging section judges whether or not ranges detected, respectively, by a first range detection section consisting of a first detection section and a position detecting sensor, and a second range detection section consisting of a second detection section; a C1 detecting sensor and a B1 detecting sensor are in mutual agreement, and when the detected ranges are not in mutual agreement, a failure judging section judges a failure of the first range detection section.
    Type: Application
    Filed: June 26, 2003
    Publication date: March 18, 2004
    Inventors: Shigeo Tsuzuki, Jiro Maeda, Naoki Ohkoshi
  • Publication number: 20040018907
    Abstract: A vehicle range changeover mechanism is driven in response to operation of a shift lever. The range changeover mechanism has an output sector gear that is unrotatably connected to a range control shaft, and a position detecting sensor, a portion of which that is interlocked with and connected to the range control shaft. Looseness between the output sector gear and the position detecting sensor portion is eliminated by provision of a leaf or spring plate, thereby assuring rotation of the position detecting sensor portion corresponding one to one with the rotational motion of the range control shaft.
    Type: Application
    Filed: February 25, 2003
    Publication date: January 29, 2004
    Inventors: Shigeo Tsuzuki, Jiro Maeda, Naoki Ohkoshi
  • Patent number: 6499371
    Abstract: A range switching apparatus is provided with a pair of discs defining, an engagement groove therebetween, a pin, and an arm portion which are used for switching to a desired drive range; a motor for driving the discs, the engagement groove, the pin, and the arm portion used for switching the drive range; a speed reducing gear mechanism for reducing a drive force of the motor and transmitting the drive force to the discs, the engagement groove, the pin, and the arm portion, used for switching the drive range; and an electromagnetic clutch for engaging and disengaging a power transmission state between the motor and the speed reducing gear mechanism. An adsorbed disc of the electromagnetic clutch is connected to a power input shaft of the speed reducing gear mechanism.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: December 31, 2002
    Assignee: Aisin Aw Co., Ltd.
    Inventors: Shigeo Tsuzuki, Kazuo Takemoto, Naoki Ohkoshi, Yoshitaka Murase, Hirotoshi Eishima, Jiro Maeda
  • Publication number: 20020134185
    Abstract: A range switching apparatus (1) is provided with a disc (2b), an engagement groove (2c), a pin (5a), and an arm portion (5b), which are used for switching a range, a motor (12) for driving the disc (2b), the engagement groove (2c), the pin (5a), and the arm portion (5b), which are used for switching a range, a speed reducing gear mechanism (46) for reducing a drive force of the motor (12) and transmitting the drive force to the disc (2b), the engagement groove (2c), the pin (5a), and the arm portion (5b), which are used for switching a range, and an electromagnetic clutch (30) for engaging and disengaging a power transmission state between the motor (12) and the speed reducing gear mechanism (46). An adsorbed disc (31) of the electromagnetic clutch (30) is connected to a power input shaft (38) of the speed reducing gear mechanism (46).
    Type: Application
    Filed: August 10, 2001
    Publication date: September 26, 2002
    Inventors: Shigeo Tsuzuki, Kazuo Takemoto, Naoki Ohkoshi, Yoshitaka Murase, Hirotoshi Eishima, Jiro Maeda