Patents by Inventor Hirotaka Nishijima

Hirotaka Nishijima 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: 11859418
    Abstract: A latch device including: a latch mechanism configured to hold a door at a closing position; an electric releasing mechanism configured to release meshing of the latch mechanism; a manual releasing mechanism configured to release meshing of the latch mechanism; and a lock configured to switch between a locked state of the manual releasing mechanism and an unlocked state, wherein the electric releasing mechanism is configured to switch the lock from the locked state to the unlocked state by releasing meshing of the latch mechanism and switch the lock from the unlocked state to the locked state when a rotating cam returns to a reference position by a biasing force of a spring, when the lock is in the locked state and the rotating cam rotates by a predetermined angle in a first direction from the reference position by power of a motor against a biasing force of the spring.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 2, 2024
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Shintaro Okawa, Hirotaka Nishijima
  • Patent number: 11708711
    Abstract: 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: Grant
    Filed: September 25, 2019
    Date of Patent: July 25, 2023
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Katsuyuki Ishiguro, Hirotaka Nishijima, Shintaro Okawa, Shunsuke Tamura
  • Patent number: 11674341
    Abstract: 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: Grant
    Filed: March 19, 2018
    Date of Patent: June 13, 2023
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Katsuyuki Ishiguro, Hirotaka Nishijima, Takuya Kakumae, Shintaro Okawa, Makoto Kaburaki
  • Patent number: 11608664
    Abstract: 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: Grant
    Filed: May 14, 2018
    Date of Patent: March 21, 2023
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Hirotaka Nishijima, Shintaro Okawa, Katsuyuki Ishiguro, Shunsuke Tamura, Hibiki Ogura
  • Patent number: 11555337
    Abstract: 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: Grant
    Filed: August 7, 2018
    Date of Patent: January 17, 2023
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Katsuyuki Ishiguro, Hirotaka Nishijima, Shunsuke Tamura, Shintaro Okawa
  • Patent number: 11525287
    Abstract: 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: Grant
    Filed: August 7, 2018
    Date of Patent: December 13, 2022
    Assignee: MITSUI KINZOKU ACT CORPORATION
    Inventors: Katsuyuki Ishiguro, Hirotaka Nishijima, Shunsuke Tamura, Shintaro Okawa
  • Publication number: 20220145675
    Abstract: A latch device including: a latch mechanism configured to hold a door at a closing position; an electric releasing mechanism configured to release meshing of the latch mechanism; a manual releasing mechanism configured to release meshing of the latch mechanism; and a lock configured to switch between a locked state of the manual releasing mechanism and an unlocked state, wherein the electric releasing mechanism is configured to switch the lock from the locked state to the unlocked state by releasing meshing of the latch mechanism and switch the lock from the unlocked state to the locked state when a rotating cam returns to a reference position by a biasing force of a spring, when the lock is in the locked state and the rotating cam rotates by a predetermined angle in a first direction from the reference position by power of a motor against a biasing force of the spring.
    Type: Application
    Filed: July 26, 2019
    Publication date: May 12, 2022
    Inventors: Shintaro OKAWA, Hirotaka NISHIJIMA
  • Publication number: 20210180372
    Abstract: 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: Application
    Filed: March 19, 2018
    Publication date: June 17, 2021
    Applicant: MITSUI KINZOKU ACT CORPORATION
    Inventors: Katsuyuki Ishiguro, Hirotaka Nishijima, Takuya Kakumae, Shintaro Okawa, Makoto Kaburaki
  • Publication number: 20210156175
    Abstract: 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: Application
    Filed: August 7, 2018
    Publication date: May 27, 2021
    Applicant: MITSUI KINZOKU ACT CORPORATION
    Inventors: Katsuyuki ISHIGURO, Hirotaka NISHIJIMA, Shunsuke TAMURA, Shintaro OKAWA
  • Publication number: 20210087863
    Abstract: 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: Application
    Filed: May 14, 2018
    Publication date: March 25, 2021
    Applicant: MITSUI KINZOKU ACT CORPORATION
    Inventors: Hirotaka Nishijima, Shintaro Okawa, Katsuyuki Ishiguro, Shunsuke Tamura, Hibiki Ogura
  • Publication number: 20210032911
    Abstract: 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: Application
    Filed: August 7, 2018
    Publication date: February 4, 2021
    Applicant: MITSUI KINZOKU ACT CORPORATION
    Inventors: Katsuyuki ISHIGURO, Hirotaka NISHIJIMA, Shunsuke TAMURA, Shintaro OKAWA
  • Publication number: 20200102772
    Abstract: 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: Application
    Filed: September 25, 2019
    Publication date: April 2, 2020
    Inventors: Katsuyuki ISHIGURO, Hirotaka NISHIJIMA, Shintaro OKAWA, Shunsuke TAMURA
  • Patent number: 8616594
    Abstract: An action with a handle on a vehicle is transmitted to an operational unit in a door, and then to a locking-unlocking unit via a first action-transmitting member. The locking-unlocking unit allows the door latch to disengage from a striker of the vehicle via a second action-transmitting member. The door of the vehicle opens.
    Type: Grant
    Filed: July 13, 2010
    Date of Patent: December 31, 2013
    Assignee: Mitsui Kinzoku Act Corporation
    Inventors: Ryoji Shimura, Hirotaka Nishijima, Hajime Yoneyama
  • Publication number: 20110012379
    Abstract: An action with a handle on a vehicle is transmitted to an operational unit in a door, and then to a locking-unlocking unit via a first action-transmitting member. The locking-unlocking unit allows the door latch to disengage from a striker of the vehicle via a second action-transmitting member. The door of the vehicle opens.
    Type: Application
    Filed: July 13, 2010
    Publication date: January 20, 2011
    Applicant: MITSUI MINING AND SMELTING CO., LTD.
    Inventors: Ryoji SHIMURA, Hirotaka Nishijima, Hajime Yoneyama
  • Patent number: 6616216
    Abstract: An automotive door construction is configured so that a door trim 13 is divided into an upper trim 131 and a lower trim 132; a glass elevating mechanism 5 is installed on the inside surface of the lower trim 132 so that the upper end of a guide rail 7 projects upward from the upper edge of the lower trim 132; and the glass elevating mechanism 5 is inserted from the upper end of the guide rail 7 of the glass elevating mechanism 5 through a mount hole 2a in an inner panel 2, and is housed in a door bag portion 1b, and then the lower trim 132 is lowered along the inner panel 2, by which the glass elevating mechanism 5 and lower trim 132 are installed to the inner panel 2. By forming the relatively small mount hole 2a, which is shorter than the total length of the guide rail 7, in the inner panel 2, the modularized glass elevating mechanism 5 is incorporated in the door bag portion 1b.
    Type: Grant
    Filed: October 3, 2001
    Date of Patent: September 9, 2003
    Assignees: Kasai Kogyo Co. Ltd., Ohi Seisakusho Co. Ltd.
    Inventors: Junichi Furuyama, Masayuki Saito, Hirotaka Nishijima, Hiromitsu Nishikawa
  • Patent number: 6558858
    Abstract: There is provided a color filter comprising: a transparent substrate; a colored layer provided on the transparent substrate; and a protective layer provided so as to cover the colored layer, the protective layer having been formed by coating a photosensitive resin composition, exposing the coating, developing the exposed coating with an alkali, and heating the developed coating, the photosensitive resin composition comprising: a copolymer resin; a bifunctional or higher polyfunctional photopolymerizable acrylate monomer; an epoxy resin; and an initiator, said copolymer resin comprising 5 to 55% by mole of constituent units represented by formula (1) and 5 to 95% by mole of constituent units represented by formula (2), the constituent units represented by formula (1) having been partially reacted, through carboxyl groups thereof, with a (meth)acryloylalkyl isocyanate compound, the constituent units represented by formula (2) having been partially reacted, through hydroxyl groups thereof, with a (meth)acryloyla
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: May 6, 2003
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kenji Ueda, Satoshi Shioda, Hirotaka Nishijima, Tomoaki Mukaiyama, Syuichi Mitsuhashi
  • Publication number: 20020192596
    Abstract: There is provided a photosensitive resin composition comprising: a copolymer resin; a bifunctional or higher polyfunctional photopolymerizable acrylate monomer; an epoxy resin; and an initiator, the copolymer resin comprising 5 to 55% by mole of constituent units represented by formula (1) and 5 to 95% by mole of constituent units represented by formula (2), the constituent units represented by formula (1) having been partially reacted, through carboxyl groups thereof, with a (meth)acryloylalkyl isocyanate compound, the constituent units represented by formula (2) having been partially reacted, through hydroxyl groups thereof, with a (meth)acryloylalkyl isocyanate compound, the copolymer resin containing 5 to 95% by mole of (meth)acryloyl groups and having an acid value of 5 to 400 mg KOH/g and a weight average molecular weight of 10,000 to 1,000,000 as determined using polystyrene as a standard: 1
    Type: Application
    Filed: May 13, 2002
    Publication date: December 19, 2002
    Applicant: Dai Nippon Printing Co., Ltd.
    Inventors: Kenji Ueda, Satoshi Shioda, Hirotaka Nishijima, Tomoaki Mukaiyama, Syuichi Mitsuhashi
  • Patent number: 6432614
    Abstract: There is provided a photosensitive resin composition comprising: a copolymer resin; a bifunctional or higher polyfunctional photopolymerizable acrylate monomer; an epoxy resin; and an initiator, the copolymer resin comprising 5 to 55% by mole of constituent units represented by formula (1) and 5 to 95% by mole of constituent units represented by formula (2), the constituent units represented by formula (1) having been partially reacted, through carboxyl groups thereof, with a (meth)acryloylalkyl isocyanate compound, the constituent units represented by formula (2) having been partially reacted, through hydroxyl groups thereof, with a (meth)acryloylalkyl isocyanate compound, the copolymer resin containing 5 to 95% by mole of (meth)acryloyl groups and having an acid value of 5 to 400 mg KOH/g and a weight average molecular weight of 10,000 to 1,000,000 as determined using polystyrene as a standard: wherein R represents hydrogen or an alkyl group having 1 to 5 carbon atoms and R1 represents an
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: August 13, 2002
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Kenji Ueda, Satoshi Shioda, Hirotaka Nishijima, Tomoaki Mukaiyama, Syuichi Mitsuhashi
  • Publication number: 20020047289
    Abstract: An automotive door construction is configured so that a door trim 13 is divided into an upper trim 131 and a lower trim 132; a glass elevating mechanism 5 is installed on the inside surface of the lower trim 132 so that the upper end of a guide rail 7 projects upward from the upper edge of the lower trim 132; and the glass elevating mechanism 5 is inserted from the upper end of the guide rail 7 of the glass elevating mechanism 5 through a mount hole 2a in an inner panel 2, and is housed in a door bag portion 1b, and then the lower trim 132 is lowered along the inner panel 2, by which the glass elevating mechanism 5 and lower trim 132 are installed to the inner panel 2. By forming the relatively small mount hole 2a, which is shorter than the total length of the guide rail 7, in the inner panel 2, the modularized glass elevating mechanism 5 is incorporated in the door bag portion 1b.
    Type: Application
    Filed: October 3, 2001
    Publication date: April 25, 2002
    Inventors: Junichi Furuyama, Masayuki Saito, Hirotaka Nishijima, Hiromitsu Nishikawa
  • Patent number: 4964238
    Abstract: A guide plate has at the front and rear ends thereof a pair of guide rail portions on which a pair of sliders are movably mounted for guiding movement of a door glass. The guide plate also mounts thereon a drive unit for driving the door glass at a point located between the sliders.
    Type: Grant
    Filed: April 24, 1989
    Date of Patent: October 23, 1990
    Assignees: Nissan Motor Co., Ltd., Ohi Seisakusho Co., Ltd.
    Inventors: Hirotaka Nishijima, Satoru Ugawa