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).
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Patent number: 8022323Abstract: 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: GrantFiled: November 6, 2008Date of Patent: September 20, 2011Assignee: Niles Co., Ltd.Inventors: Tsutomu Watada, Masanori Endo
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Patent number: 7956299Abstract: 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: GrantFiled: September 3, 2008Date of Patent: June 7, 2011Assignee: Niles Co., Ltd.Inventors: Hiroyuki Shimada, Tsutomu Watada
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Publication number: 20090127080Abstract: 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: ApplicationFiled: November 6, 2008Publication date: May 21, 2009Applicant: NILES CO., LTD.Inventors: Tsutomu Watada, Masanori Endo
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Publication number: 20090065332Abstract: 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: ApplicationFiled: September 3, 2008Publication date: March 12, 2009Applicant: NILES CO., LTD.Inventors: Hiroyuki Shimada, Tsutomu Watada
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Publication number: 20060090989Abstract: 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: ApplicationFiled: October 31, 2005Publication date: May 4, 2006Inventors: Tsutomu Watada, Yukihiro Kakegawa
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Patent number: 6921871Abstract: 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: GrantFiled: September 23, 2003Date of Patent: July 26, 2005Assignee: Niles Co., Ltd.Inventors: Takashi Nakazawa, Tsutomu Watada
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Patent number: 6791043Abstract: 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: GrantFiled: March 8, 2002Date of Patent: September 14, 2004Assignee: Niles Parts Co., Ltd.Inventors: Tsutomu Watada, Takashi Nakazawa
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Publication number: 20040074750Abstract: 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: ApplicationFiled: September 23, 2003Publication date: April 22, 2004Inventors: Takashi Nakazawa, Tsutomu Watada
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Patent number: 6693249Abstract: 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: GrantFiled: April 17, 2002Date of Patent: February 17, 2004Assignee: Niles Parts Co., Ltd.Inventors: Tsutomu Watada, Takashi Nakazawa
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Patent number: 6610939Abstract: 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: GrantFiled: March 8, 2002Date of Patent: August 26, 2003Assignee: Niles Parts Co., Ltd.Inventor: Tsutomu Watada
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Patent number: 6506988Abstract: 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: GrantFiled: March 9, 2001Date of Patent: January 14, 2003Assignee: Niles Parts Co., Ltd.Inventors: Syunichi Sato, Tsutomu Watada
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Publication number: 20020153235Abstract: 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: ApplicationFiled: April 17, 2002Publication date: October 24, 2002Inventors: Tsutomu Watada, Takashi Nakazawa
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Publication number: 20020130021Abstract: 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: ApplicationFiled: March 8, 2002Publication date: September 19, 2002Inventors: Tsutomu Watada, Taskashi Nakazawa
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Publication number: 20020125114Abstract: 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: ApplicationFiled: March 8, 2002Publication date: September 12, 2002Inventor: Tsutomu Watada
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Publication number: 20010020575Abstract: Change gear range positions of an automatic transmission are accurately detected, to perform a sophisticated control and to miniaturize the automatic transmission.Type: ApplicationFiled: March 9, 2001Publication date: September 13, 2001Applicant: Niles Part Co., Ltd.Inventors: Syunichi Sato, Tsutomu Watada