Patents by Inventor Sakai Yagi

Sakai Yagi 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: 9054438
    Abstract: A connector terminal includes a main body, a support leg, and a resilient portion. The main body includes a contact portion making contact with a first side of a male connector terminal of a male electric connector, a spring portion facing the contact portion and making contact with the second side of the male connector terminal, a support portion supporting the spring portion, and a space-limiter (joint portion) restricting a space between the contact portion and the support portion from spreading. The support leg is adapted to be fixed at one of the ends thereof. The resilient portion connects the other end of the support leg and the contact portion to each other and is resiliently deformable in accordance with deflection of the main body.
    Type: Grant
    Filed: July 26, 2013
    Date of Patent: June 9, 2015
    Assignee: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi Endo, Sakai Yagi, Masaya Muta, Shunya Oohashi
  • Patent number: 9022801
    Abstract: An electric connector includes at least one connector terminal into which a male connector terminal of a male electric connector is inserted, and a housing including a terminal storage room in which the connector terminal is housed. The housing includes a support supporting the connector terminal at at least one of an outer surface and a bottom of the connector terminal when the male connector terminal is inserted into the terminal storage room for preventing the connector terminal from inclining.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: May 5, 2015
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Takayoshi Endo, Sakai Yagi, Masaya Muta, Shunya Oohashi
  • Patent number: 9022817
    Abstract: A connector terminal includes first and second spring terminals between which a male connector terminal of a male electric connector is sandwiched. The connector terminal is formed by bending a strip-shaped plate about lines intersecting with a longitudinal line of the plate such that a width of the plate is maintained as it is. The first and second spring terminals are formed with a limiter for preventing the first and second spring terminals from being outwardly deflected.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: May 5, 2015
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Takayoshi Endo, Sakai Yagi, Masaya Muta, Shunya Oohashi
  • Publication number: 20150118871
    Abstract: A leg unit used for a connector housing, the leg unit being inserted into a fixing hole formed through a printed circuit board from a first surface towards a second surface of the printed circuit board, the leg unit including a first projection having elasticity, a second projection, and a contact portion making contact with the first surface when the leg unit is inserted into the fixing hole, the first and second projections being spaced away from each other and facing each other, a distance between an outer surface of the first projection and an outer surface of the second projection being greater within a predetermined range than an inner diameter of the fixing hole, the first projection including a unit for preventing the leg unit from being released out of the fixing hole after the leg unit has been inserted into the fixing hole.
    Type: Application
    Filed: October 17, 2014
    Publication date: April 30, 2015
    Inventors: SAKAI YAGI, JUN MUKUNOKI
  • Patent number: 9017088
    Abstract: An electric connector includes a housing having an opening and a bottom. The housing has a recess formed at the bottom and at least one electric terminal projects through a bottom of the recess into the housing. A sealant layer composed of cured light-curing resin at least partially fills the recess.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: April 28, 2015
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Takayoshi Endo, Sakai Yagi, Jun Mukunoki, Shuji Touno
  • Patent number: 8998629
    Abstract: A terminal is formed of an electrically conductive plate, and includes a first support part and a second support part facing each other such that the first and second support parts sandwich a printed circuit board to make contact with opposite surfaces of the printed circuit board. The second support part is comprised of a portion of the plate expanding in a first direction intersecting with a second direction in which the printed circuit board expands, and the second support part is formed with a recess opening in the second direction.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: April 7, 2015
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Takayoshi Endo, Sakai Yagi, Masaya Muta, Akira Yamamoto
  • Publication number: 20150056872
    Abstract: A connector terminal comprised of a single bent metal sheet, including a contact portion including a first sheet portion and a second sheet portion, the first and second sheet portions being folded to overlap one on another, a terminal body, and a connector portion connecting the terminal body and the contact portion to each other, the connector portion including a reinforcement portion covering therewith an end surface of the first sheet portion, an end surface of the second sheet portion, and at least a part of a surface of the second sheet portion in a part of the contact portion.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 26, 2015
    Inventors: Takayoshi ENDO, Sakai YAGI, Jun MUKUNOKI, Yuji KANO
  • Publication number: 20150044918
    Abstract: A press-fit type connector terminal including a contact section inserted into a through-hole of a printed circuit board, the connector terminal being formed of a single elastic metal sheet, the contact section including a plurality of contact pieces surrounding a longitudinal center line of the press-fit type connector terminal, and a pair of binders binding the contact pieces at their opposite ends, the binders having a thickness smaller than a maximum thickness of the contact pieces.
    Type: Application
    Filed: August 1, 2014
    Publication date: February 12, 2015
    Inventors: Takayoshi ENDO, Sakai YAGI, Takuya TAKEDA
  • Publication number: 20150011114
    Abstract: The connector terminal includes at opposite ends a pair of press-fit terminals to be inserted into through-holes formed through two printed circuit boards located facing each other, each of the press-fit terminals having a plurality of contact pieces, and further includes at least one buffer portion deformable in accordance with a gap between imaginary longitudinal center lines of the press-fit terminals.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 8, 2015
    Inventors: Takayoshi ENDO, Sakai YAGI, Takuya TAKEDA
  • Publication number: 20140370755
    Abstract: An electric connector includes a housing having an opening and a bottom, the housing being formed at the bottom with a recess, a terminal inserted into the housing through a bottom of the recess such that a top thereof is located in the housing, and a cured resin filled in the recess, the recess having an inclining inner sidewall.
    Type: Application
    Filed: June 2, 2014
    Publication date: December 18, 2014
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi ENDO, Sakai YAGI, Shuji TOUNO
  • Publication number: 20140370757
    Abstract: The electric connector includes an electrically insulative housing, and a terminal having an engagement section and inserted into a terminal space formed in the housing in a direction from a rear towards a front of the housing, the housing including a lance protruding in the housing towards an axis of the terminal space, and being able to engage to and disengage from the engagement section of the terminal, a resilient support resiliently supporting the lance such that the lance is able to move away from the axis, and a path through which a jig for disengaging the lance from the engagement section is inserted into the housing through a front of the housing towards the lance along the engagement section, the resilient support being formed with a slit communicating with the path and extending towards the lance from an entrance of the path.
    Type: Application
    Filed: June 2, 2014
    Publication date: December 18, 2014
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi ENDO, Sakai YAGI, Masaru SENMYOU
  • Publication number: 20140364005
    Abstract: A housing used for an electric connector, includes a terminal space into which an electric terminal is to be inserted, and a lance for preventing the electric terminal from being slipped out of the terminal space, the lance including a flexible portion, and a protrusion extending from the flexible portion and engaging with the electric terminal, the lance defining an escape space in which the flexible portion can be bent in a direction in which the protrusion and the electric terminal are disengaged with each other, the flexible portion having a passage along which a jig can move and which extends in a direction in which the jig is inserted into the lance, the jig being used for disengaging the protrusion and the electric terminal from each other.
    Type: Application
    Filed: May 28, 2014
    Publication date: December 11, 2014
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Sakai YAGI, Shuji TOUNO
  • Publication number: 20140357097
    Abstract: The terminal is formed of an electrically conductive plate, and includes a first support part and a second support part disposed facing each other such that the first and second support parts sandwich a printed circuit board to make contact with opposite surfaces of the printed circuit board, the second support part being comprised of a portion of the plate expanding in a first direction intersecting with a second direction in which the printed circuit board expands, the second support part being formed with a recess opening in the second direction.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 4, 2014
    Inventors: Takayoshi ENDO, Sakai YAGI, Masaya MUTA, Akira YAMAMOTO
  • Publication number: 20140357130
    Abstract: The electric connector includes a plurality of terminals each having a stepped portion recessed or raised in a direction intersecting a direction in which the terminals are inserted into a later-mentioned housing, a housing formed with an opening, the terminals being inserted into the housing, and a holder inserted into the housing through the opening and engaged to the stepped portions of the terminals to thereby fix the terminals in the housing, the holder including a front and a pair of sidewalls all of which are shaped to be engageable to the stepped portions of the terminals when the holder is inserted into the housing, and a pair of flexible portions resiliently deformable to move towards and away from each other.
    Type: Application
    Filed: May 21, 2014
    Publication date: December 4, 2014
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi ENDO, Sakai YAGI, Shuji TOUNO
  • Publication number: 20140342606
    Abstract: The electric connector includes an electrically insulative housing forming therein a terminal space, a terminal inserted into the terminal space, the terminal including a sheath section, and an engagement section formed at the sheath section, a lance protruding towards an axis of the terminal space in the housing, the lance being engaged to and disengaged from the engagement section, a resilient support supporting the lance such that the lance can be resiliency deformed in a direction away from the axis, a path through which a jig can be inserted into the housing towards the lance, and a pair of terminal supports situated horizontally facing each other such that the jig inserted into the housing through the path is located therebetween, and making contact with the sheath section when the terminal is inserted into the housing.
    Type: Application
    Filed: May 6, 2014
    Publication date: November 20, 2014
    Applicant: DAI-ICHI SEIKO CO., LTD.
    Inventors: Takayoshi ENDO, Sakai YAGI, Masaru SENMYOU
  • Patent number: 8814606
    Abstract: The electric connector includes a housing having an opening and a bottom, the housing being formed at the bottom with a recess, at least one electric terminal projecting through a bottom of the recess into the housing, and a seal composed of light-curing resin, the seal at least partially filling the recess therewith for hermetically sealing the electric terminal.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: August 26, 2014
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Takayoshi Endo, Sakai Yagi, Jun Mukunoki, Shui Touno
  • Patent number: D718246
    Type: Grant
    Filed: August 15, 2012
    Date of Patent: November 25, 2014
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Takayoshi Endo, Sakai Yagi, Masaya Muta
  • Patent number: D719098
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: December 9, 2014
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Takayoshi Endo, Sakai Yagi, Masaru Senmyou
  • Patent number: D721656
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: January 27, 2015
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Takayoshi Endo, Sakai Yagi, Masaru Senmyou
  • Patent number: D724541
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: March 17, 2015
    Assignee: Dai-Ichi Seiko Co., Ltd.
    Inventors: Takayoshi Endo, Sakai Yagi, Masaru Senmyou