Patents by Inventor Tsutomu Watada

Tsutomu Watada 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: 8022323
    Abstract: The present invention aims at achieving the object of keeping a contact housing portion liquid tight sealed and to improve the durability of a switch apparatus.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: September 20, 2011
    Assignee: Niles Co., Ltd.
    Inventors: Tsutomu Watada, Masanori Endo
  • Patent number: 7956299
    Abstract: A movable contact board is engaged to a detent plate fixed and fastened to a manual shaft and a shaft support portion for supporting the manual shaft which is a turning center of the detent plate to the stationary contact board is formed integrally with the movable contact board. Therefore, the detent plate, the manual shaft and the movable contact board cooperate integrally, leading to an improvement on relative position accuracy of the movable contact board to the stationary contact board.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: June 7, 2011
    Assignee: Niles Co., Ltd.
    Inventors: Hiroyuki Shimada, Tsutomu Watada
  • Publication number: 20090127080
    Abstract: The present invention aims at achieving the object of keeping a contact housing portion liquid tight sealed and to improve the durability of a switch apparatus.
    Type: Application
    Filed: November 6, 2008
    Publication date: May 21, 2009
    Applicant: NILES CO., LTD.
    Inventors: Tsutomu Watada, Masanori Endo
  • Publication number: 20090065332
    Abstract: A movable contact board is engaged to a detent plate fixed and fastened to a manual shaft and a shaft support portion for supporting the manual shaft which is a turning center of the detent plate to the stationary contact board is formed integrally with the movable contact board. Therefore, the detent plate, the manual shaft and the movable contact board cooperate integrally, leading to an improvement on relative position accuracy of the movable contact board to the stationary contact board.
    Type: Application
    Filed: September 3, 2008
    Publication date: March 12, 2009
    Applicant: NILES CO., LTD.
    Inventors: Hiroyuki Shimada, Tsutomu Watada
  • Publication number: 20060090989
    Abstract: A movable plate provided with movable contact points rotatable around a shaft hole of a base plate is disposed and a plurality of stationary contact points are on the base plate in both side of the shaft hole in such a way to surround the shaft hole with the stationary contact points. The stationary contact points are connected or disconnected to the movable points of the movable plate depending on rotation of the movable plate. Location of the stationary contact points at a wide angular range enables the row number of circular arcs having the stationary contact points to be reduced, and the distance from the shaft hole to the circular arc Ce of the outermost peripheral stationary contact point is not large, thus downsizing the whole size. As a result, the material expenses of the stationary contact points are reduced.
    Type: Application
    Filed: October 31, 2005
    Publication date: May 4, 2006
    Inventors: Tsutomu Watada, Yukihiro Kakegawa
  • Patent number: 6921871
    Abstract: To enable to restrain a portion only of a resin at a pole board made of the resin to restrain warp or a sink mark, in a slide switch including a pole board 3 made of a resin insert-molded with fixed contacts 9, 11, 13, 15 and 17 and a movable board supporting a movable contact and capable of sliding the movable contact relative to the fixed contacts 9, 11, 13, 15 and 17 by predetermined contact pressure by moving along the pole board 3, a metal plate 21 is insert-molded to a portion of the pole board 1 at which the fixed contacts 9, 11, 13, 15 and 17 are not present.
    Type: Grant
    Filed: September 23, 2003
    Date of Patent: July 26, 2005
    Assignee: Niles Co., Ltd.
    Inventors: Takashi Nakazawa, Tsutomu Watada
  • Patent number: 6791043
    Abstract: To make it possible to facilitate accurate positioning of an inhibitor switch with respect to an automatic transmission, there is provided a tack-fastening member, which is mounted in advance between a terminal block and a moving block before an inhibitor switch is fixed on an automatic transmission, for tack-fastening the terminal block and moving block at a corresponding rotational position to detect a specific shift position of the automatic transmission, and for being broken at a set torque. By this tack-fastening member, the moving block is temporarily fastened on the terminal block, and the moving block in the temporarily fastened state is fitted on a manual shaft at the specific shift position. After this, the inhibitor switch is fixed on the automatic transmission, and the manual shaft is rotated to break the tack-fastening member from the temporarily fastened state.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: September 14, 2004
    Assignee: Niles Parts Co., Ltd.
    Inventors: Tsutomu Watada, Takashi Nakazawa
  • Publication number: 20040074750
    Abstract: To enable to restrain a portion only of a resin at a pole board made of the resin to restrain warp or a sink mark, in a slide switch including a pole board 3 made of a resin insert-molded with fixed contacts 9, 11, 13, 15 and 17 and a movable board supporting a movable contact and capable of sliding the movable contact relative to the fixed contacts 9, 11, 13, 15 and 17 by predetermined contact pressure by moving along the pole board 3, a metal plate 21 is insert-molded to a portion of the pole board 1 at which the fixed contacts 9, 11, 13, 15 and 17 are not present.
    Type: Application
    Filed: September 23, 2003
    Publication date: April 22, 2004
    Inventors: Takashi Nakazawa, Tsutomu Watada
  • Patent number: 6693249
    Abstract: An inhibitor switch is used to correctly perform the detection of speed change positions. This inhibitor switch has a terminal block with fixed contacts and a moving block which is mounted and fitted onto a manual shaft of an automatic transmission, has a signaling contact and large capacity current-carrying contacts, and is rotatable relative to the terminal block. This inhibitor switch is used for electrically detecting a speed change position of the automatic transmission on the basis of a relative rotating positional relationship of the fixed contacts and the signaling contact in accordance with the rotation of the manual shaft. The moving block, which is mounted on the manual shaft, has a boss portion formed of a resin and a contact support portion whereon the signaling contact and large capacity current-carrying contacts are mounted. The contact support portion is formed of metal and the signaling contact is joined to the contact support portion by caulking.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: February 17, 2004
    Assignee: Niles Parts Co., Ltd.
    Inventors: Tsutomu Watada, Takashi Nakazawa
  • Patent number: 6610939
    Abstract: To make it possible to provide a switch which can adjust ON/OFF switching positions easily and which can suppress wear to enhance the durability, there is provided an inhibitor switch for detecting the shift position of an automatic transmission. From a pole board, there are protruded insulator portions of an insulator having sliding faces on their surfaces. Sliding faces are provided with recesses for reducing facial pressures. When a moving contact slides with respect to a stationary contact to ON/OFF switching positions, the moving contact starts to ride on the insulator portions so that the moving contact goes out of contact with the stationary contact and can move from the sliding faces into the recesses. When the moving contact goes down the insulator portions, the moving contact contacts with the ON/OFF switching positions of the stationary contact.
    Type: Grant
    Filed: March 8, 2002
    Date of Patent: August 26, 2003
    Assignee: Niles Parts Co., Ltd.
    Inventor: Tsutomu Watada
  • Patent number: 6506988
    Abstract: An inhibitor switch is disclosed, including a permanent magnet and a magnetic sensor which detects a magnetic force of the permanent magnet in a non-contacting state and outputs a linear change in a voltage value in response to a change in a relative position between the permanent magnet and the magnetic sensor. One of the permanent magnet and the magnetic sensor is mounted on a manual valve shaft side for changing over change gear range positions of an automatic transmission by operating a manual valve of the automatic transmission in an interlocking manner with the manual valve shaft. The other one of the permanent magnet and the magnetic sensor is mounted on a transmission case side of the automatic transmission. The change gear range position of the automatic transmission is detectable in response to an output of the voltage value corresponding to the change gear range position.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: January 14, 2003
    Assignee: Niles Parts Co., Ltd.
    Inventors: Syunichi Sato, Tsutomu Watada
  • Publication number: 20020153235
    Abstract: To enable correctly performing detection of speed change positions. In an inhibitor switch having a terminal block with fixed contacts and a moving block which is mounted and fitted onto a manual shaft of an automatic transmission, has a signaling contact and large capacity current-carrying contacts, and is rotatable relative to the terminal block, and for electrically detecting a speed change position of the automatic transmission on the basis of a relative rotating positional relationship of the fixed contacts and the signaling contact in accordance with rotation of the manual shaft, the moving block having a boss portion formed of a resin and being mounted on the manual shaft and a contact support portion mounting thereon the signaling contact and large capacity current-carrying contacts, the contact support portion being formed of metal and the signaling contact being joined to the contact support portion by caulking.
    Type: Application
    Filed: April 17, 2002
    Publication date: October 24, 2002
    Inventors: Tsutomu Watada, Takashi Nakazawa
  • Publication number: 20020130021
    Abstract: To make it possible to facilitate an accurate positioning of an inhibitor switch with respect to an automatic transmission. There is provided a tack-fastening member, which is mounted in advance between a terminal block and a moving block before an inhibitor switch is fixed on an automatic transmission, for tack-fastening the terminal block and moving block at a relatively rotational position to detect a specific shift position of the automatic transmission and for being broken at a set torque. By this tack-fastening member, the moving block is temporarily fastened on the terminal block, and the moving block in the temporarily fastened state is fitted on a manual shaft at the specific shift position. After this, the inhibitor switch is fixed on the automatic transmission, and the manual shaft is rotated to break the tack-fastening member from the temporarily fastened state.
    Type: Application
    Filed: March 8, 2002
    Publication date: September 19, 2002
    Inventors: Tsutomu Watada, Taskashi Nakazawa
  • Publication number: 20020125114
    Abstract: To make it possible to provide a switch which can adjust ON/OFF switching positions easily and which can suppress wear to enhance the durability. There is provided an inhibitor switch for detecting the shift position of an automatic transmission. From a pole board, there are protruded insulator portions and of an insulator having sliding faces on their surfaces. Sliding faces are provided with recesses for reducing facial pressures. When a moving contact slides with respect to a stationary contact to ON/OFF switching positions, the moving contact starts to ride on the insulator portions so that the moving contact goes out of contact with the stationary contact and can move from the sliding faces into the recesses. When the moving contact goes down the insulator portions, the moving contact contacts with the ON/OFF switching positions of the stationary contact.
    Type: Application
    Filed: March 8, 2002
    Publication date: September 12, 2002
    Inventor: Tsutomu Watada
  • Publication number: 20010020575
    Abstract: Change gear range positions of an automatic transmission are accurately detected, to perform a sophisticated control and to miniaturize the automatic transmission.
    Type: Application
    Filed: March 9, 2001
    Publication date: September 13, 2001
    Applicant: Niles Part Co., Ltd.
    Inventors: Syunichi Sato, Tsutomu Watada