Patents by Inventor Yutaka Ichitani

Yutaka Ichitani 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).

  • Method for manufacturing an air passage switching door
    Patent number: 6676397
    Abstract: In an air passage switching door, a packing material having a size approximately corresponding to a plate surface of a door base member is used, and the door base member is crossed with the packing material at a portion around a rotation shaft for rotating the door base member, so that both plate portions of the door base member are bonded to opposite surfaces of the packing material at different areas of the packing material. Accordingly, the air passage switching door can be manufactured using the single packing material.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: January 13, 2004
    Assignees: Denso Corporation, Shimizu Industry Co., Ltd.
    Inventors: Mitsutoshi Kato, Yasuhiro Sato, Yutaka Ichitani, Kunio Nakashima, Hiroyuki Saito
  • Air passage switching door and method for manufacturing the same
    Publication number: 20030077996
    Abstract: In an air passage switching door, a packing material having a size approximately corresponding to a plate surface of a door base member is used, and the door base member is crossed with the packing material at a, portion around a rotation shaft for rotating the door base member, so that both plate portions of the door base member are bonded to opposite surfaces of the packing material at different areas of the packing material. Accordingly, the air passage switching door can be manufactured using the single packing material in low cost, while having a reduced thickness.
    Type: Application
    Filed: September 20, 2002
    Publication date: April 24, 2003
    Inventors: Mitsutoshi Kato, Yasuhiro Sato, Yutaka Ichitani, Kunio Nakashima, Hiroyuki Saito
  • Air passage switching door
    Patent number: 6523805
    Abstract: In an air passage switching door, a packing material having a size approximately corresponding to a plate surface of a door base member is used, and the door base member is crossed with the packing material at a portion around a rotation shaft for rotating the door base member, so that both plate portions of the door base member are bonded to opposite surfaces of the packing material at different areas of the packing material. Accordingly, the air passage switching door can be manufactured using the single packing material in low cost, while having a reduced thickness.
    Type: Grant
    Filed: April 16, 2001
    Date of Patent: February 25, 2003
    Assignees: Denso Corporation, Shimazu Industry Co., Ltd.
    Inventors: Mitsutoshi Kato, Yasuhiro Sato, Yutaka Ichitani, Kunio Nakashima, Hiroyuki Saito
  • Air passage switching door and method for manufacturing the same
    Publication number: 20020028649
    Abstract: In an air passage switching door, a packing material having a size approximately corresponding to a plate surface of a door base member is used, and the door base member is crossed with the packing material at a portion around a rotation shaft for rotating the door base member, so that both plate portions of the door base member are bonded to opposite surfaces of the packing material at different areas of the packing material. Accordingly, the air passage switching door can be manufactured using the single packing material in low cost, while having a reduced thickness.
    Type: Application
    Filed: April 16, 2001
    Publication date: March 7, 2002
    Inventors: Mitsutoshi Kato, Yasuhiro Sato, Yutaka Ichitani, Kunio Nakashima, Hiroyuki Saito
  • Automotive air-conditioner
    Patent number: 4802405
    Abstract: An automotive air-conditioner has a motor-driven centrifugal fan and a casing accommodating the fan and having first and second wall portions adjacent to axially opposite open ends of the fan, respectively. A fresh-air inlet and a first recirculated-air inlet are formed in the first wall portion, while a second recirculated-air inlet is formed in the second wall portion to increase flow of recirculated-air sucked into the fan during a recirculation mode of air-conditioner operation. The fresh-air inlet and the first recirculated-air inlet are selectively opened and closed by a servo-actuated damper, while the second recirculated-air inlet is closed and opened by another servo-actuated damper operatively linked to the first-mentioned damper.
    Type: Grant
    Filed: January 15, 1988
    Date of Patent: February 7, 1989
    Assignees: Nippondenso Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Yutaka Ichitani, Masayoshi Imaeda, Yoshimasa Ikeda, Yoji Nishimura, Kiyokazu Seikou