Patents by Inventor Masazumi Miyagawa
Masazumi Miyagawa 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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Publication number: 20210262253Abstract: A hood latch assembly comprising: a striker; a base plate having a striker guiding path; a latch secured to the base plate by a latch shaft, the latch being configured to rotate from an unlatching position to an over-rotation position across a latching position upon engagement with the striker; a latch spring configured to push the latch in an unlatching direction; and a ratchet secured to the base plate by a ratchet shaft, the ratchet being configured to engage with the latch returning to the latching position from the over-rotation position by spring force of the latch spring and to maintain engagement of the latch with the striker, wherein the latch has a ratchet contact arm including a straight portion, the straight portion of the ratchet contact arm being configured to contact a base portion of the ratchet when the latch reaches the over-rotation position.Type: ApplicationFiled: January 11, 2019Publication date: August 26, 2021Inventors: Masazumi MIYAGAWA, Toshiya KANEKO, Kumiko SATO
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Patent number: 7774985Abstract: A driving apparatus for a sliding member includes a housing, a cable, a drum to move the cable to open and close the sliding member, a motor arranged to drive the drum, and a tensioner supported by the housing arranged to provide a tensioning force to the cable, the tensioner is arranged: to be switched from a first state where an urging force of a spring is stored to a second state where the urging force of the spring is released, to be moved from a first position where the tensioner does not provide the tensioning force to the cable to a second position where the tensioner provides an initial tensioning force to the cable when the tensioner is in the first state, and to be fixed in the second position and to be switched to the second state to provide the tensioning force to the cable by the urging force of the spring.Type: GrantFiled: May 31, 2007Date of Patent: August 17, 2010Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Masazumi Miyagawa, Masashi Shimizu, Keiichiro Okuyama
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Patent number: 7472944Abstract: A drive unit which operates in a first direction based on operation of a door opening and closing control unit so as to unfasten a latch of a full-opening latch unit is connected to a half-opening stopping unit being displaced from a state where the half-opening stopping unit is made unable to abut with a half-opening striker provided on a vehicle body side to a state where the half-opening stopping unit is made abut with the halt-opening striker when a window glass provided in a sliding door, so as to abut with the half-opening striker when the sliding door is opened to a predetermined half-opened position to thereby stop the sliding door at the half-opened position in such a manner that the half-opening stopping unit is displaced to the state where the half-opening stopping unit abuts with the half-opening striker when the drive unit is operated in a second direction.Type: GrantFiled: February 3, 2006Date of Patent: January 6, 2009Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Masazumi Miyagawa, Shigenori Hiramoto
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Publication number: 20080036317Abstract: A sliding drive apparatus includes: a housing; a cable; a drum arranged to wind the cable to open and close the driven member; a motor arranged to drive the drum; a tensioner supported by the housing, and arranged to provide a tensioning force to the cable,to be switched from a first state that an urging force of a spring is stored, and to a second state that the urging force of the spring is released, to be moved between a first position that the tensioner does not provide the tensioning force to the cable, and a second position that the tensioner provides the initial tensioning force is provided to the cable when the tensioner is in the first state, and to be switched to the second state by fixing in the second position, and to provide the tensioning force to the cable by the urging force of the spring.Type: ApplicationFiled: May 31, 2007Publication date: February 14, 2008Inventors: Masazumi Miyagawa, Masashi Shimizu, Keiichiro Okuyama
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Patent number: 7216901Abstract: An operation force transmitting member of a door lock apparatus has a guide tube and an inner cable passed through the guide tube and is connected to one of the door lock apparatus and an operating device for operating the door lock apparatus at the upper end portion thereof and to the other of the door lock apparatus and the operating device at the lower end portion thereof. In this operation force transmitting member, a cover member, which is enabled to close the upper face of the guide tube during non-operation of the operating device, is provided on the inner cable projecting from the upper face of the guide tube.Type: GrantFiled: February 14, 2003Date of Patent: May 15, 2007Assignees: Ohi Seisakusho Co., Ltd., Valeo Securite HabitacleInventors: Masazumi Miyagawa, Michio Ohashi
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Publication number: 20060202507Abstract: A drive unit which operates in a first direction based on operation of a door opening and closing control unit so as to unfasten a latch of a full-opening latch unit is connected to a half-opening stopping unit being displaced from a state where the half-opening stopping unit is made unable to abut with a half-opening striker provided on a vehicle body side to a state where the half-opening stopping unit is made abut with the halt-opening striker when a window glass provided in a sliding door, so as to abut with the half-opening striker when the sliding door is opened to a predetermined half-opened position to thereby stop the sliding door at the half-opened position in such a manner that the half-opening stopping unit is displaced to the state where the half-opening stopping unit abuts with the half-opening striker when the drive unit is operated in a second direction.Type: ApplicationFiled: February 3, 2006Publication date: September 14, 2006Inventors: Masazumi MIYAGAWA, Shigenori HIRAMOTO
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Patent number: 6971816Abstract: A mounting device for a control cable, including a stationary member to which a tube of the control cable is fixed, and a connector for connecting the tube to the stationary member. The stationary member has a first wall substantially parallel to an axial direction of the tube and a second wall extending from the first wall in a direction substantially perpendicular to the axial direction. The stationary member is provided with an opening extending over the first and second walls. The connector includes a body portion fitted into the opening on the second wall of the stationary member, and a locking portion inserted from outside into the opening on the first wall of the stationary member to be engaged therewith.Type: GrantFiled: February 18, 2003Date of Patent: December 6, 2005Assignee: Ohi Seisakusho Co., Ltd.Inventors: Masazumi Miyagawa, Masakazu Akahori
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Publication number: 20030173786Abstract: The present invention is directed to an operation force transmitting member of a door lock apparatus, which has a guide tube and an inner cable passed through the guide tube and is connected to one of the door lock apparatus and an operating device for operating the door lock apparatus at the upper end portion thereof and to the other of the door lock apparatus and the operating device at the lower end portion thereof. In this operation force transmitting member, a cover member, which is enabled to close the upper face of the guide tube during non-operation of the operating device, is provided on the inner cable projecting from the upper face of the guide tube.Type: ApplicationFiled: February 14, 2003Publication date: September 18, 2003Applicant: OHI SEISAKUSHO CO., LTD.Inventors: Masazumi Miyagawa, Michio Ohashi
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Publication number: 20030156898Abstract: A mounting device for a control cable, including a stationary member to which a tube of the control cable is fixed, and a connector for connecting the tube to the stationary member. The stationary member has a first wall substantially parallel to an axial direction of the tube and a second wall extending from the first wall in a direction substantially perpendicular to the axial direction. The stationary member is provided with an opening extending over the first and second walls. The connector includes a body portion fitted into the opening on the second wall of the stationary member, and a locking portion inserted from outside into the opening on the first wall of the stationary member to be engaged therewith.Type: ApplicationFiled: February 18, 2003Publication date: August 21, 2003Inventors: Masazumi Miyagawa, Masakazu Akahori
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Patent number: 6267420Abstract: In a latch mechanism of an open-close member for a vehicle, a latch plate to be inlaid on a striker when a lid is closed and a detent lever for holding the latch plate in latched condition are pivotally supported by a base plate whose lower portion branches out in a forked shape abutting against the striker. An open lever for separating the latch plate from the striker by abutting against the detent lever is provided. Further, provided are a stopper lever pivotally supported by the base plate and used for controlling the pivoting of the detent lever toward the latch plate by abutting against the upper end of the detent lever, and a spring for urging and pivoting the stopper lever toward the detent lever at all times.Type: GrantFiled: September 30, 1999Date of Patent: July 31, 2001Assignee: Ohi Seisakusho Co., Ltd.Inventor: Masazumi Miyagawa
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Patent number: 5794994Abstract: An inside door handle unit to be installed to the inside surface of a door of an automotive vehicle. The inside door handle unit includes a body attached to the door of the vehicle. An inside door handle is rotatably supported to the body and pivotal around an axis. A door lock knob is rotatably supported to the body and pivotal around the axis. The handle and the door lock knob are connected to the door lock device. A spring is provided to bias the handle in one rotational direction of the handle. The handle is rotatably supported relative to the body under the action of a fitting connection between the counterpart device of the body and the counterpart device of the handle, while the lock knob is rotatably supported relative to the body under the action of another fitting connection between the counterpart device of the body and the counterpart device of the lock knob. The handle and the lock knob are independently rotatably supported on the body.Type: GrantFiled: August 8, 1996Date of Patent: August 18, 1998Assignees: OHI Seisakusho Co., Ltd., Nissan Motor Co., Ltd.Inventors: Masazumi Miyagawa, Satoru Nishizawa, Takayuki Sano
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Patent number: 5785366Abstract: A door lock device is described, which has a recessed body having an outside surface. The body has an opening through which the interior of the body is exposed to a back side of the body which faces the outside surface. A latch lever is pivotally installed in the body and engageable with a striker. A locking lever is pivotally installed in the body and operatively engageable with the latch lever. An extra lever is pivotally connected to the outside surface of the body and has an opening formed therethrough. A metal pin is secured to the locking lever and projects toward the back side of the body through the opening of the body and is slidably and pivotally engaged with the opening of the extra lever. A plastic layer entirely covers the pin.Type: GrantFiled: April 30, 1996Date of Patent: July 28, 1998Assignee: Ohi Seisakusho Co., Ltd.Inventors: Tatsuyuki Takaishi, Masazumi Miyagawa
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Patent number: 5186504Abstract: A door lock device which comprises a structural base body by which a latch plate and a control mechanism for the latch plate are operatively carried; and a cover plate attached to the structural base body in a manner to cover the latch plate. The cover plate includes larger and smaller flat portions which are mutually intersected and the cover plate has an enclosed aperture which extends between the larger and smaller flat portions and through which the latch plate is exposed.Type: GrantFiled: March 19, 1992Date of Patent: February 16, 1993Assignee: Ohi Seisakusho Co., Ltd.Inventors: Tatsuyuki Takaishi, Masazumi Miyagawa, Hitoshi Nakamura
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Patent number: 5011202Abstract: An improved handle structure which comprises a body having a recess formed therein; a handle proper shaped like a rectangular frame and including a first U-shaped part and a second U-shaped part which are connected at their foot portions to form the frame-like structure, the second U-shaped part being inclined relative to the first U-shaped part, the handle proper being pivotally held by the body having the first U-shaped part exposed to the outside of the body and the second U-shaped part put in the recess of the body; a knob pivotally received in the frame-like handle proper; and a coil spring for biasing the handle proper in such a direction as to draw the first U-shaped part toward a bottom of the recess of the body.Type: GrantFiled: March 7, 1989Date of Patent: April 30, 1991Assignee: Ohi Seisakusho Co., Ltd.Inventors: Yuichi Kato, Masazumi Miyagawa