Patents by Inventor Masahiro Kanamaru

Masahiro Kanamaru 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).

  • Publication number: 20080257600
    Abstract: A wire harness leading-out opening is provided at a junction between an electric connection box and a bottom surface cover which constitute an electric connection box. A cylindrical wire harness leading-out guide is provided on the periphery of the wire harness leading-out opening, and is formed in a way that the both circumferential ends of a half-cylindrical body formed on the electric connection box and a half-cylindrical body formed on the bottom surface cover are coupled to each other. In the inner circumference of a circumferential junction between the peripheral walls of the two half-cylindrical bodies, a concave portion is provided to accommodate a loose portion of an armoring member wrapped around the outer circumference of the wire harness.
    Type: Application
    Filed: April 18, 2008
    Publication date: October 23, 2008
    Inventors: Masahiro Kanamaru, Makoto Nakayama, Tarou Inoue
  • Patent number: 7429700
    Abstract: A lock structure for a box includes a first box member having a retaining projection, and a second box member having an elastic retaining arm. The retaining arm has at its distal end a retaining portion for engagement with the retaining projection. The first box member has an arm restraint rib which restricts a releasing movement of the retaining arm in a condition in which the retaining arm and the retaining projection are engaged with each other. When the arm restraint rib is pressed by the elastic retaining arm, the arm restraint rib is deformed by a pressing force of the elastic retaining arm. A retaining distance of the retaining projection relative to the retaining portion of the elastic retaining arm is larger than a gap between the elastic retaining arm and the arm restraint rib in the engaged condition.
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: September 30, 2008
    Assignee: Yazaki Corporation
    Inventors: Masahiro Kanamaru, Makoto Nakayama, Taro Inoue
  • Publication number: 20080209961
    Abstract: In a sidewall of a connector frame, a cantilevered lock arm is provided. A lower end of the lock arm is connected to the sidewall with a curved supporting unit interposed therebetween. The lock arm extends upward from the supporting unit with a space. The supporting unit has a slit to increase the flexibility of the lock arm. An engagement protrusion is provided on the lock arm. Moreover, a fitting sidewall is provided in a box body, and a lock wall having a lock protrusion is provided outside the fitting sidewall. The lock protrusion includes a downward-facing engagement surface. A mold hole used in molding the engagement surface is formed between the fitting sidewall and lock wall. An abutment surface is provided at an upper end of the fitting sidewall and contacted with the supporting unit to close communication between the mold hole and the slit.
    Type: Application
    Filed: December 27, 2007
    Publication date: September 4, 2008
    Inventors: Masahiro KANAMARU, Makoto Nakayama, Tarou Inoue
  • Publication number: 20080169126
    Abstract: An electrical junction box includes an accommodation box having an accommodation box body having an accommodation space penetrating trough the accommodation box body up and down and an electrical component mounting block inserted into the accommodation space from either upside thereof or the underside and fixed in the accommodation space. The electrical junction box fiber includes a first locking mechanism arranged between an inner wall of the accommodation box body and an outer wall of a block body to lock up the electrical component mounting block inserted into the accommodation space from its upside and a second locking mechanism arranged between the inner wall of the accommodation box body and the outer wall of the block body to lock up the electrical component mounting block inserted into the accommodation space from the underside.
    Type: Application
    Filed: January 15, 2008
    Publication date: July 17, 2008
    Inventors: Masahiro Kanamaru, Makoto Nakayama, Katsuya Hashimoto
  • Publication number: 20080156807
    Abstract: In an upper surface of a bottom wall of a box body having a part accommodation room formed inside, a recess is provided. In the bottom of the recess, a bolt hole to fix an electrical junction box to a vehicle body is penetrated. In the upper surface of the bottom wall of the body hole, a flat sealing surface is formed to surround an opening of the recess. When an electronic unit is accommodated in the part accommodation room, the bottom surface of the electronic unit is brought into close contact with the sealing surface to close the recess, thus providing a seal between the part accommodation room and recess.
    Type: Application
    Filed: December 27, 2007
    Publication date: July 3, 2008
    Inventors: Masahiro Kanamaru, Makoto Nakayama
  • Publication number: 20080149385
    Abstract: An electrical junction box is provided to reduce looseness of a cover. The electrical junction box includes a box body and the cover to be slidably mounted on a lateral side of the box body from above. The cover has a front wall and a pair of left and right sidewalls connected to both left and right ends of the front wall to overlap with left and right connecting walls of the box body, providing a U-shaped cross section. The electrical junction box further includes first slide guides provided on both of the cover and the box body and second slide guides provided on both of the cover and the box body. The second slide guides are positioned in areas where the left and right sidewalls of the cover overlapping with the left and right connecting walls of the box body. Further, the second slide guides are closer to the front wall of the cover being mounted to the box body than the first slide guides.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 26, 2008
    Inventors: Masahiro KANAMARU, Makoto Nakayama, Tarou Inoue
  • Publication number: 20080149386
    Abstract: An electrical junction box facilitates a worker's wiring of a wire harness without using a superfluous component and allows the workability in assembling the electrical junction box as well as that in disassembling to be improved. The electrical junction box includes a box body and a cover to be mounted to the box body after wiring wire harnesses about the box body. The box body has wiring grooves shaped to have U-shaped cross sections and arranged on its exterior surface to accommodate the wire harnesses, which have been drawn out of the box body through its one side and further led from an upper part of the one side downwardly. Left and right sidewalls defining each groove are provided, at their leading ends, with temporary locking parts restricting slipping of the wire harness out of the wiring groove. The cover is provided with restricting walls (sidewalls, rib) restricting outward deflection of the left and right sidewalls.
    Type: Application
    Filed: December 19, 2007
    Publication date: June 26, 2008
    Inventors: Masahiro KANAMARU, Makoto Nakayama, Tarou Inoue
  • Publication number: 20080083548
    Abstract: Provided is a structure for housing an electrical junction box in a housing box by inserting the electrical junction box into the housing box from above and also for fixing the electrical junction box to the housing box so as to prevent slipping-off thereof by engagement between engagement parts provided on external side surfaces of the electrical junction box and engagement parts provided on internal side surfaces of the housing box, both of which face each other in parallel with an insertion direction in insertion of the electrical junction box. Moreover, groove-like depressions extended along the insertion direction into the housing box are provided in the external side surfaces of the electrical junction box, and engagement convex parts are provided in the depressions. Furthermore, engagement projections engaged with the engagement convex parts are provided on the internal side surfaces of the housing box.
    Type: Application
    Filed: October 5, 2007
    Publication date: April 10, 2008
    Inventors: Makoto NAKAYAMA, Masahiro Kanamaru
  • Publication number: 20070149030
    Abstract: A lock structure for a box includes a first box member having a retaining projection, and a second box member having an elastic retaining arm. The retaining arm has at its distal end a retaining portion for engagement with the retaining projection. The first box member has an arm restraint rib which restricts a releasing movement of the retaining arm in a condition in which the retaining arm and the retaining projection are engaged with each other. When the arm restraint rib is pressed by the elastic retaining arm, the arm restraint rib is deformed by a pressing force of the elastic retaining arm. A retaining distance of the retaining projection relative to the retaining portion of the elastic retaining arm is larger than a gap between the elastic retaining arm and the arm restraint rib in the engaged condition.
    Type: Application
    Filed: December 15, 2006
    Publication date: June 28, 2007
    Applicant: YAZAKI CORPORATION
    Inventors: Masahiro Kanamaru, Makoto Nakayama, Taro Inoue
  • Patent number: 7195515
    Abstract: In a wire harness leading-out structure in which a harness notch groove is formed in a case body, and a water stop cover is slidingly inserted into the harness notch groove, and a wire harness outlet port for the passage of a wire harness therethrough is formed by that portion of the harness notch groove which is not closed by the water stop cover, a plurality of the harness outlet ports are formed by that portion of the harness notch groove which is not closed by the water stop cover, and the plurality of harness outlet ports are arranged at two different heights, respectively.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: March 27, 2007
    Assignee: Yazaki Corporation
    Inventor: Masahiro Kanamaru
  • Patent number: 7172440
    Abstract: The interior of a case body is partitioned into two chambers by a partition wall, and the two chambers communicate with each other via a communication passage defined by a notch formed in the partition wall. First and second covers are attached to the case body, and cover open sides of the two chambers, respectively. The first and second covers have lap portions, respectively, which cover an open end of the communication passage in overlapping relation to each other.
    Type: Grant
    Filed: October 12, 2005
    Date of Patent: February 6, 2007
    Assignee: Yazaki Corporation
    Inventor: Masahiro Kanamaru
  • Patent number: 7122738
    Abstract: In an electric connection box, first connectors of wire harnesses and second connectors of wire harnesses are received within a case body, and the first connectors are coupled respectively with the second connectors, and the pairs of coupled connectors are fixed to the case body. Slide rail portions are formed on an inner surface of a wall of the case body, and a connector holding plate is slidably mounted on the slide rail portions, and has a plurality of connector fixing portions spaced from each other in a direction of sliding of the connector holding plate. The plurality of pairs of coupled connectors are fixed to the plurality of connector fixing portions, respectively, and the connector holding plate is slid along the slide rail portions, and is inserted into the case body, thereby fixing the plurality of pairs of coupled connectors to the case body.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: October 17, 2006
    Assignee: Yazaki Corporation
    Inventor: Masahiro Kanamaru
  • Publication number: 20060089021
    Abstract: In a wire harness leading-out structure in which a harness notch groove is formed in a case body, and a water stop cover is slidingly inserted into the harness notch groove, and a wire harness outlet port for the passage of a wire harness therethrough is formed by that portion of the harness notch groove which is not closed by the water stop cover, a plurality of the harness outlet ports are formed by that portion of the harness notch groove which is not closed by the water stop cover, and the plurality of harness outlet ports are arranged at two different heights, respectively.
    Type: Application
    Filed: October 17, 2005
    Publication date: April 27, 2006
    Inventor: Masahiro Kanamaru
  • Publication number: 20060089020
    Abstract: The interior of a case body is partitioned into two chambers by a partition wall, and the two chambers communicate with each other via a communication passage defined by a notch formed in the partition wall. First and second covers are attached to the case body, and cover open sides of the two chambers, respectively. The first and second covers have lap portions, respectively, which cover an open end of the communication passage in overlapping relation to each other.
    Type: Application
    Filed: October 12, 2005
    Publication date: April 27, 2006
    Inventor: Masahiro Kanamaru
  • Publication number: 20060089029
    Abstract: In an electric connection box, first connectors of wire harnesses and second connectors of wire harnesses are received within a case body, and the first connectors are coupled respectively with the second connectors, and the pairs of coupled connectors are fixed to the case body. Slide rail portions are formed on an inner surface of a wall of the case body, and a connector holding plate is slidably mounted on the slide rail portions, and has a plurality of connector fixing portions spaced from each other in a direction of sliding of the connector holding plate. The plurality of pairs of coupled connectors are fixed to the plurality of connector fixing portions, respectively, and the connector holding plate is slid along the slide rail portions, and is inserted into the case body, thereby fixing the plurality of pairs of coupled connectors to the case body.
    Type: Application
    Filed: October 25, 2005
    Publication date: April 27, 2006
    Inventor: Masahiro Kanamaru