Patents by Inventor Katsuyuki Ishiguro
Katsuyuki Ishiguro 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: 11708711Abstract: A vehicle door latch device includes: a latch body including: a latch secured by a latch shaft on a rear surface side of the latch body, the latch being configured to engage with a striker; a ratchet secured by a ratchet shaft on the rear surface side of the latch body, the ratchet being configured to engage with the latch; and a striker advancing path into which the striker advances relatively; a motor configured to release the ratchet from the latch; and an actuator case provided continuously on top of the latch body, the actuator case being configured to accommodate the motor.Type: GrantFiled: September 25, 2019Date of Patent: July 25, 2023Assignee: MITSUI KINZOKU ACT CORPORATIONInventors: Katsuyuki Ishiguro, Hirotaka Nishijima, Shintaro Okawa, Shunsuke Tamura
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Patent number: 11674341Abstract: A vehicle door latch apparatus has a latch that is engaged with a striker; a ratchet member rotatably supported by a ratchet shaft and that has a pawl portion, wherein the pawl portion is movable between a latch engaging position, where the pawl portion can face a full latch engaging portion of the latch, and a latch releasing position, where the pawl portion is not in contact with the full latch engaging portion, wherein release component force is generated in a latch releasing direction when latch return force is applied in a releasing direction at the latch engaging position, and the ratchet member is pushed out from the latch engaging position to the latch releasing position by the release component force; a ratchet restraint that is arranged on a side of the ratchet member and that can be moved about a pin between a block position and a release position.Type: GrantFiled: March 19, 2018Date of Patent: June 13, 2023Assignee: MITSUI KINZOKU ACT CORPORATIONInventors: Katsuyuki Ishiguro, Hirotaka Nishijima, Takuya Kakumae, Shintaro Okawa, Makoto Kaburaki
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Patent number: 11608664Abstract: Vehicle door latch apparatus has; latch that engages strike and that rotates from an unlatched position to a full-latch over rotating position; ratchet member that is rotatably supported by ratchet shaft, wherein ratchet member has pawl portion that is movable between a latch engaging position, where pawl portion can face full-latching engaging portion of latch, and a latch releasing position, where pawl portion is not engaged with full-latching engaging portion; and ratchet restrainer that is positioned on a side of ratchet member and that restrains ratchet member. Ratchet member is configured to be pushed out from latch engaging position to a latch releasing position by release component force F2 that acts on ratchet member in a latch releasing direction, wherein release component force F2 is generated when latch returning force that acts on latch is applied to ratchet member at the latch engaging position.Type: GrantFiled: May 14, 2018Date of Patent: March 21, 2023Assignee: MITSUI KINZOKU ACT CORPORATIONInventors: Hirotaka Nishijima, Shintaro Okawa, Katsuyuki Ishiguro, Shunsuke Tamura, Hibiki Ogura
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Patent number: 11555337Abstract: A vehicle door latch apparatus has latch mechanism, powered release means, manual release means and lock mechanism that is switched between a locked state and an unlocked state. Powered release means has cam wheel that is rotated in normal and in reverse rotational directions from a reference position by motor power. When cam wheel is rotated in the normal rotational direction from the reference position, latch mechanism is released while lock mechanism is held in the locked state When cam wheel is rotated in the reverse rotational direction from the reference position, cam wheel switches lock mechanism to the unlocked state. Cam wheel returns lock mechanism to the locked state when cam wheel is rotated in the normal rotational direction back to the reference position in the unlocked state.Type: GrantFiled: August 7, 2018Date of Patent: January 17, 2023Assignee: MITSUI KINZOKU ACT CORPORATIONInventors: Katsuyuki Ishiguro, Hirotaka Nishijima, Shunsuke Tamura, Shintaro Okawa
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Patent number: 11525287Abstract: Lock mechanism is provided between pawl lever and manual release mean. The present vehicle door latch apparatus includes ratchet member that engages latch and that can be released from latch by release component force F2, latch restraint that prevents ratchet member from being disengaged from latch and powered release means that moves ratchet restraint. Ratchet member includes base lever and pawl lever. When ratchet restraint is moved, base lever is moved to a non-regulated position, where pawl lever can be disengaged from latch by release component force F2. Manual release means is connected to pawl lever. Lock mechanism is provided between pawl lever and manual release means.Type: GrantFiled: August 7, 2018Date of Patent: December 13, 2022Assignee: MITSUI KINZOKU ACT CORPORATIONInventors: Katsuyuki Ishiguro, Hirotaka Nishijima, Shunsuke Tamura, Shintaro Okawa
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Publication number: 20210180372Abstract: A vehicle door latch apparatus has a latch that is engaged with a striker; a ratchet member rotatably supported by a ratchet shaft and that has a pawl portion, wherein the pawl portion is movable between a latch engaging position, where the pawl portion can face a full latch engaging portion of the latch, and a latch releasing position, where the pawl portion is not in contact with the full latch engaging portion, wherein release component force is generated in a latch releasing direction when latch return force is applied in a releasing direction at the latch engaging position, and the ratchet member is pushed out from the latch engaging position to the latch releasing position by the release component force; a ratchet restraint that is arranged on a side of the ratchet member and that can be moved about a pin between a block position and a release position.Type: ApplicationFiled: March 19, 2018Publication date: June 17, 2021Applicant: MITSUI KINZOKU ACT CORPORATIONInventors: Katsuyuki Ishiguro, Hirotaka Nishijima, Takuya Kakumae, Shintaro Okawa, Makoto Kaburaki
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Publication number: 20210156175Abstract: A vehicle door latch apparatus has latch mechanism, powered release means, manual release means and lock mechanism that is switched between a locked state and an unlocked state. Powered release means has cam wheel that is rotated in normal and in reverse rotational directions from a reference position by motor power. When cam wheel is rotated in the normal rotational direction from the reference position, latch mechanism is released while lock mechanism is held in the locked state When cam wheel is rotated in the reverse rotational direction from the reference position, cam wheel switches lock mechanism to the unlocked state. Cam wheel returns lock mechanism to the locked state when cam wheel is rotated in the normal rotational direction back to the reference position in the unlocked state.Type: ApplicationFiled: August 7, 2018Publication date: May 27, 2021Applicant: MITSUI KINZOKU ACT CORPORATIONInventors: Katsuyuki ISHIGURO, Hirotaka NISHIJIMA, Shunsuke TAMURA, Shintaro OKAWA
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Publication number: 20210087863Abstract: Vehicle door latch apparatus has; latch that engages strike and that rotates from an unlatched position to a full-latch over rotating position; ratchet member that is rotatably supported by ratchet shaft, wherein ratchet member has pawl portion that is movable between a latch engaging position, where pawl portion can face full-latching engaging portion of latch, and a latch releasing position, where pawl portion is not engaged with full-latching engaging portion; and ratchet restrainer that is positioned on a side of ratchet member and that restrains ratchet member. Ratchet member is configured to be pushed out from latch engaging position to a latch releasing position by release component force F2 that acts on ratchet member in a latch releasing direction, wherein release component force F2 is generated when latch returning force that acts on latch is applied to ratchet member at the latch engaging position.Type: ApplicationFiled: May 14, 2018Publication date: March 25, 2021Applicant: MITSUI KINZOKU ACT CORPORATIONInventors: Hirotaka Nishijima, Shintaro Okawa, Katsuyuki Ishiguro, Shunsuke Tamura, Hibiki Ogura
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Publication number: 20210032911Abstract: Lock mechanism is provided between pawl lever and manual release mean. The present vehicle door latch apparatus includes ratchet member that engages latch and that can be released from latch by release component force F2, latch restraint that prevents ratchet member from being disengaged from latch and powered release means that moves ratchet restraint. Ratchet member includes base lever and pawl lever. When ratchet restraint is moved, base lever is moved to a non-regulated position, where pawl lever can be disengaged from latch by release component force F2. Manual release means is connected to pawl lever. Lock mechanism is provided between pawl lever and manual release means.Type: ApplicationFiled: August 7, 2018Publication date: February 4, 2021Applicant: MITSUI KINZOKU ACT CORPORATIONInventors: Katsuyuki ISHIGURO, Hirotaka NISHIJIMA, Shunsuke TAMURA, Shintaro OKAWA
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Patent number: 10837205Abstract: A motor vehicle door latch device that prevents a latch from being held in a half-latch position when a door opens and enables itself to be smaller. The door latch device comprises a latch that is pivotally mounted via a first shaft to engage with a striker; a pawl that can hold the latch in a full-latch or a half-latch position; a memory lever pivotally mounted via a third shaft not to overlap the latch or the pawl, the memory lever enables holding the pawl in a release position without the full-latch position or half-latch position when the pawl rotates in a releasing direction from the full-latch position; and a releasing portion enabling the pawl to rotate from the release position to the half-latch or full-latch position when the latch rotates from the full-latch position toward an open position to be in between the half-latch position and the open position.Type: GrantFiled: December 2, 2014Date of Patent: November 17, 2020Assignee: GECOM CORPORATIONInventor: Katsuyuki Ishiguro
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Patent number: 10697205Abstract: A vehicle door latch device comprises a latch; a ratchet for releasing the latch; a first lever that can rotate in a releasing direction from an initial position due to releasing of the ratchet, a synthetic resin part being fixed to a metal part on the first lever; a first spring biasing the first lever toward the initial position, a second lever pivotally mounted to the first lever via a second shaft at a certain angle and rotating from the initial position to a block position for preventing the first lever from rotating in a releasing direction; a second spring comprising a torsion spring for biasing the second lever toward the initial position; and a holding member made of the synthetic resin part and holding a coil of the second spring.Type: GrantFiled: February 15, 2017Date of Patent: June 30, 2020Assignee: GECOM CorporationInventors: Katsuyuki Ishiguro, Bryan Farris
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Patent number: 10641017Abstract: A vehicle door latch device comprises an engagement mechanism housing having a striker entering groove into which a striker can enter, a cover member occluding an opening of the engagement mechanism housing, a latch pivotally mounted in the engagement mechanism housing and capable of engaging with the striker which has entered the striker entering groove, a ratchet pivotally mounted in the engagement mechanism housing and capable of engaging with the latch, and movable elements relating to the operation of the ratchet. The housing has a guide path through which the invasion fluid can be guided to an outside direction of a region that the movable elements are disposed.Type: GrantFiled: November 29, 2017Date of Patent: May 5, 2020Assignee: GECOM CORPORATIONInventors: Katsuyuki Ishiguro, Shigekazu Sugo
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Patent number: 10626638Abstract: A door latch device having a motor cover for covering a motor and connection parts thereof, wherein the motor cover in a size for covering the motor from a vehicle interior side is formed to a switch member housed in a casing, connection parts of the motor are respectively connected to conductive members of the switch member on a vehicle-exterior-side side face of the motor cover, and the motor 44 and the connection parts thereof are covered with the motor cover.Type: GrantFiled: March 10, 2015Date of Patent: April 21, 2020Assignee: GECOM CORPORATIONInventors: Katsuyuki Ishiguro, Brian Kepler, Aaron Martin, Bryan Farris
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Publication number: 20200102772Abstract: A vehicle door latch device includes: a latch body including: a latch secured by a latch shaft on a rear surface side of the latch body, the latch being configured to engage with a striker; a ratchet secured by a ratchet shaft on the rear surface side of the latch body, the ratchet being configured to engage with the latch; and a striker advancing path into which the striker advances relatively; a motor configured to release the ratchet from the latch; and an actuator case provided continuously on top of the latch body, the actuator case being configured to accommodate the motor.Type: ApplicationFiled: September 25, 2019Publication date: April 2, 2020Inventors: Katsuyuki ISHIGURO, Hirotaka NISHIJIMA, Shintaro OKAWA, Shunsuke TAMURA
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Patent number: 10597909Abstract: A door latch device which allows shared use of a connector for use in door latch devices equipped with standard electric components and a connector for use in door latch devices equipped with special electric components in addition to the standard electric components, thereby achieving an increase in the efficiency of the work of connecting to an external connector and a reduction in costs. A connector (32) of a standard switch plate (26) has a coupling hole (51) which penetrates, in the connecting direction of the external connector, a portion having no standard connecting terminals (304). The coupling hole (51) can be fitted with another switch plate (46) that allows the passage of electric current through electric components different than the standard electric components.Type: GrantFiled: February 12, 2015Date of Patent: March 24, 2020Assignee: GECOM CORPORATIONInventors: Katsuyuki Ishiguro, Cristian Damboiu, Bryan Farris, Brian Kepler, Aaron Martin
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Patent number: 10597914Abstract: A vehicle door latch device comprises an outside lever, a locking lever, a holding member, an opening link and a spring. The spring applies an urging force, smaller than an elastic holding force of the holding member in an unlocking direction, to the opening link. A coil is held in a holding recess of a rotation central portion of the opening link. The first arm engages with the outside lever, and the second arm engages with the opening link. If a panic state occurs, the locking lever can rotate to an unlock position, and the opening link returns to an initial position before a releasing action and is moved to the unlock position by the urging force of the spring.Type: GrantFiled: November 27, 2014Date of Patent: March 24, 2020Assignees: MITSUI KINZOKU ACT CORPORATION, GECOM CORPORATIONInventors: Katsuyuki Ishiguro, Daisuke Enomoto
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Patent number: 10465424Abstract: A vehicle door latch device comprises a latch that can engage with a striker; a ratchet that engages with the latch to hold a door closed; a stationary stopper; a first lever pivotally mounted on a first shaft to rotate from an initial position in a releasing direction; a first spring that biases the first lever toward the initial position, a second lever supported to the first lever on a second shaft and rotating between an initial position where the second lever cannot contact the stationary stopper and a blocking position where the second lever can contact the stationary stopper and prevents the first lever from rotating in the releasing direction; and a second spring that biases the second lever toward the initial position with a force greater than a biasing force of the first spring.Type: GrantFiled: January 26, 2017Date of Patent: November 5, 2019Assignee: GECOM CORPORATIONInventors: Katsuyuki Ishiguro, Bryan Farris
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Publication number: 20180230715Abstract: A vehicle door latch device comprises a latch; a ratchet for releasing the latch; a first lever that can rotate in a releasing direction from an initial position due to releasing of the ratchet, a synthetic resin part being fixed to a metal part on the first lever; a first spring biasing the first lever toward the initial position, a second lever pivotally mounted to the first lever via a second shaft at a certain angle and rotating from the initial position to a block position for preventing the first lever from rotating in a releasing direction; a second spring comprising a torsion spring for biasing the second lever toward the initial position; and a holding member made of the synthetic resin part and holding a coil of the second spring.Type: ApplicationFiled: February 15, 2017Publication date: August 16, 2018Applicant: GECOM CORPORATIONInventors: Katsuyuki Ishiguro, Bryan Farris
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Publication number: 20180216370Abstract: A vehicle door latch device comprises an engagement mechanism housing having a striker entering groove into which a striker can enter, a cover member occluding an opening of the engagement mechanism housing, a latch pivotally mounted in the engagement mechanism housing and capable of engaging with the striker which has entered the striker entering groove, a ratchet pivotally mounted in the engagement mechanism housing and capable of engaging with the latch, and movable elements relating to the operation of the ratchet. The housing has a guide path through which the invasion fluid can be guided to an outside direction of a region that the movable elements are disposed.Type: ApplicationFiled: November 29, 2017Publication date: August 2, 2018Inventors: Katsuyuki ISHIGURO, Shigekazu SUGO
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Publication number: 20180209180Abstract: A vehicle door latch device comprises a latch that can engage with a striker; a ratchet that engages with the latch to hold a door closed; a stationary stopper; a first lever pivotally mounted on a first shaft to rotate from an initial position in a releasing direction; a first spring that biases the first lever toward the initial position, a second lever supported to the first lever on a second shaft and rotating between an initial position where the second lever cannot contact the stationary stopper and a blocking position where the second lever can contact the stationary stopper and prevents the first lever from rotating in the releasing direction; and a second spring that biases the second lever toward the initial position with a force greater than a biasing force of the first spring.Type: ApplicationFiled: January 26, 2017Publication date: July 26, 2018Inventors: Katsuyuki ISHIGURO, Bryan FARRIS