Patents by Inventor Yuji Kozai

Yuji Kozai 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: 11791119
    Abstract: First and second movable contacts are connected to a first movable contact piece. A second movable contact piece is provided separately from the first movable contact piece. Third and fourth movable contacts are connected to the second movable contact piece. A drive device moves the first movable contact piece and the second movable contact piece by moving a movable iron core by a magnetic force generated from a coil. In a state where the first to fourth movable contacts are contacts the first to fourth fixed contacts, respectively, the first movable contact piece and the second movable contact piece are electrically connected in parallel with the first fixed terminal and the second fixed terminal.
    Type: Grant
    Filed: February 12, 2020
    Date of Patent: October 17, 2023
    Assignee: OMRON CORPORATION
    Inventors: Ayaka Miyake, Koichiro Matsushima, Yuji Kozai, Taira Minamizaki
  • Publication number: 20220108859
    Abstract: First and second movable contacts are connected to a first movable contact piece. A second movable contact piece is provided separately from the first movable contact piece. Third and fourth movable contacts are connected to the second movable contact piece. A drive device moves the first movable contact piece and the second movable contact piece by moving a movable iron core by a magnetic force generated from a coil. In a state where the first to fourth movable contacts are contacts the first to fourth fixed contacts, respectively, the first movable contact piece and the second movable contact piece are electrically connected in parallel with the first fixed terminal and the second fixed terminal.
    Type: Application
    Filed: February 12, 2020
    Publication date: April 7, 2022
    Inventors: Ayaka MIYAKE, Koichiro MATSUSHIMA, Yuji KOZAI, Taira MINAMIZAKI
  • Publication number: 20220108860
    Abstract: A relay includes a first fixed terminal, a first fixed contact, a second fixed terminal, a second fixed contact, a first movable contact piece, a first movable contact, a second movable contact, an insulating member, and a drive device. The first fixed contact is connected to the first fixed terminal. The second fixed contact is connected to the second fixed terminal. The first movable contact and the second movable contact are connected to the first movable contact piece. The insulating member is connected to the first movable contact piece. The drive device includes a coil and a movable iron core. The movable iron core is connected to the insulating member. The drive device moves the movable iron core by a magnetic force generated from the coil to move the movable contact piece. The first movable contact piece and the movable iron core are electrically insulated by the insulating member.
    Type: Application
    Filed: February 12, 2020
    Publication date: April 7, 2022
    Inventors: Koichiro MATSUSHIMA, Ayaka MIYAKE, Yuji KOZAI, Taira MINAMIZAKI
  • Patent number: 10811205
    Abstract: The link member is capable of pressing the contact piece. The link member includes a first pressing portion and a second pressing portion. The first pressing portion is configured to press the first divided piece, and extends in a widthwise direction of the contact piece. The second pressing portion is configured to press the second divided piece, and extends in a lengthwise direction.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: October 20, 2020
    Assignee: OMRON CORPORATION
    Inventors: Kaori Hayashida, Yuji Kozai
  • Patent number: 10784055
    Abstract: A contact piece unit includes a terminal, a contact piece, and a contact. The contact piece is connected with the terminal, and disposed at a position facing the terminal. The contact is attached to the contact piece. The terminal includes a connection portion, a body, and a narrow portion. The connection portion is connected with the contact piece. The body extends in a lengthwise direction of the contact piece from the connection portion. The narrow portion has a width smaller than a width of the body and smaller than a width of the contact piece.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: September 22, 2020
    Assignee: OMRON Corporation
    Inventors: Kaori Hayashida, Yuji Kozai
  • Patent number: 10650996
    Abstract: At the time of contact between the contacts, the first movable contact comes into contact with the first fixed contact before contact between the second movable contact and the second fixed contact is made. The first movable contact is located on a leading end side of the contact piece with respect to the second movable contact. The first divided piece includes a body and a projection. The body extends in the lengthwise direction. The projection projects in the widthwise direction of the first divided piece from the body. The projection includes a contact portion pressed by the link member.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: May 12, 2020
    Assignee: OMRON CORPORATION
    Inventors: Kaori Hayashida, Yuji Kozai
  • Patent number: 10600599
    Abstract: At the time of contact between the contacts, the first movable contact comes into contact with the first fixed contact before contact between the second movable contact and the second fixed contact is made. The first movable contact is located on a leading end side of the contact piece with respect to the second movable contact. The first divided piece includes a body and a projection. The body extends in the lengthwise direction. The projection projects in the widthwise direction of the first divided piece from the body. The projection includes a contact portion pressed by the link member.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: March 24, 2020
    Assignee: OMRON CORPORATION
    Inventors: Kaori Hayashida, Yuji Kozai
  • Patent number: 10580603
    Abstract: A second yoke is disposed at a distance from a first yoke in a predetermined first direction. The movable unit is disposed between the first yoke and the second yoke. The movable unit is rotated by magnetic force from the first yoke and the second yoke to switch between a contact state and a non-contact state of a first contact and a second contact. The first conductive member has an extending portion extending in a second direction vertical to the first direction. The extending portion and a second conductive member are disposed at positions not overlapping with the relay body as viewed in a third direction vertical to the first direction and the second direction.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: March 3, 2020
    Assignee: OMRON Corporation
    Inventors: Yuji Kozai, Natsumi Oyama, Koichiro Matsushima, Daisuke Ohtsubo
  • Patent number: 10559442
    Abstract: At the time of contact between the contacts, the first movable contact comes into contact with the first fixed contact before contact between the second movable contact and the second fixed contact is made. The first movable contact is located on a leading end side of the contact piece with respect to the second movable contact. The first divided piece includes a body and a projection. The body extends in the lengthwise direction. The projection projects in the widthwise direction of the first divided piece from the body. The projection includes a contact portion pressed by the link member.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: February 11, 2020
    Assignee: OMRON CORPORATION
    Inventors: Kaori Hayashida, Yuji Kozai
  • Patent number: 10468217
    Abstract: At the time of contact between the contacts, the first movable contact comes into contact with the first fixed contact before contact between the second movable contact and the second fixed contact is made. The first movable contact is located on a leading end side of the contact piece with respect to the second movable contact. The first divided piece includes a body and a projection. The body extends in the lengthwise direction. The projection projects in the widthwise direction of the first divided piece from the body. The projection includes a contact portion pressed by the link member.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: November 5, 2019
    Assignee: OMRON CORPORATION
    Inventors: Kaori Hayashida, Yuji Kozai
  • Publication number: 20190013172
    Abstract: At the time of contact between the contacts, the first movable contact comes into contact with the first fixed contact before contact between the second movable contact and the second fixed contact is made. The first movable contact is located on a leading end side of the contact piece with respect to the second movable contact. The first divided piece includes a body and a projection. The body extends in the lengthwise direction. The projection projects in the widthwise direction of the first divided piece from the body. The projection includes a contact portion pressed by the link member.
    Type: Application
    Filed: October 3, 2016
    Publication date: January 10, 2019
    Applicant: OMRON CORPORATION
    Inventors: Kaori HAYASHIDA, Yuji KOZAI
  • Publication number: 20180358186
    Abstract: A contact piece unit includes a terminal, a contact piece, and a contact. The contact piece is connected with the terminal, and disposed at a position facing the terminal. The contact is attached to the contact piece. The terminal includes a connection portion, a body, and a narrow portion. The connection portion is connected with the contact piece. The body extends in a lengthwise direction of the contact piece from the connection portion. The narrow portion has a width smaller than a width of the body and smaller than a width of the contact piece.
    Type: Application
    Filed: October 3, 2016
    Publication date: December 13, 2018
    Applicant: OMRON CORPORATION
    Inventors: Kaori HAYASHIDA, Yuji KOZAI
  • Publication number: 20180240631
    Abstract: The link member is capable of pressing the contact piece. The link member includes a first pressing portion and a second pressing portion. The first pressing portion is configured to press the first divided piece, and extends in a widthwise direction of the contact piece. The second pressing portion is configured to press the second divided piece, and extends in a lengthwise direction.
    Type: Application
    Filed: October 3, 2016
    Publication date: August 23, 2018
    Applicant: OMRON CORPORATION
    Inventors: Kaori HAYASHIDA, Yuji KOZAI
  • Publication number: 20180240630
    Abstract: A second yoke is disposed at a distance from a first yoke in a predetermined first direction. The movable unit is disposed between the first yoke and the second yoke. The movable unit is rotated by magnetic force from the first yoke and the second yoke to switch between a contact state and a non-contact state of a first contact and a second contact. The first conductive member has an extending portion extending in a second direction vertical to the first direction. The extending portion and a second conductive member are disposed at positions not overlapping with the relay body as viewed in a third direction vertical to the first direction and the second direction.
    Type: Application
    Filed: July 28, 2016
    Publication date: August 23, 2018
    Applicant: OMRON CORPORATION
    Inventors: Yuji KOZAI, Natsumi OYAMA, Koichiro MATSUSHIMA, Daisuke OHTSUBO
  • Patent number: 8963660
    Abstract: A electromagnetic relay including a plate-shaped pivoting piece (32), one end of which is supported in cantilever state, pivoted by a movable block (40), which reciprocates in the up-down direction on the basis of excitation and demagnetization of an electromagnet block (20) housed within a housing (10, 50), and causes a movable contact (34) formed on the other end of the plate-shaped pivoting piece (32) to make/break contact with an anchored contact (36) formed on the tip section of an anchored contact terminal (35). In particular, the one-end section of the plate-shaped pivoting piece (32) is supported pivotably in cantilever state by the upper end section of a movable contact terminal (31), with a support spring (33) comprising a conductive sheet spring material interposed therebetween.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: February 24, 2015
    Assignee: Omron Corporation
    Inventors: Hiroyasu Tanaka, Yuji Kozai
  • Publication number: 20140043120
    Abstract: A electromagnetic relay including a plate-shaped pivoting piece (32), one end of which is supported in cantilever state, pivoted by a movable block (40), which reciprocates in the up-down direction on the basis of excitation and demagnetization of an electromagnet block (20) housed within a housing (10, 50), and causes a movable contact (34) formed on the other end of the plate-shaped pivoting piece (32) to make/break contact with an anchored contact (36) formed on the tip section of an anchored contact terminal (35). In particular, the one-end section of the plate-shaped pivoting piece (32) is supported pivotably in cantilever state by the upper end section of a movable contact terminal (31), with a support spring (33) comprising a conductive sheet spring material interposed therebetween.
    Type: Application
    Filed: March 23, 2011
    Publication date: February 13, 2014
    Inventors: Hiroyasu Tanaka, Yuji Kozai
  • Patent number: 7932795
    Abstract: A silent electromagnetic relay in which a predetermined degree of silencing effect can be maintained regardless of a change to the specification, a higher silencing effect can be obtained at the time of return, the parts control is easy, and the cost of manufacturing is low. A first silent spring is mounted in a position of an inward face of a moving iron to be attracted to an iron core of an electromagnet portion, and an L-shaped moving iron turning based on excitation and demagnetization of the electromagnet portion is housed in a housing that is a resin molded product. Furthermore, a second silent spring for coming in contact with an inner face of the housing is mounted to an outward face of the moving iron and on an opposite side to the first silent spring.
    Type: Grant
    Filed: August 21, 2007
    Date of Patent: April 26, 2011
    Assignee: OMRON Corporation
    Inventors: Yuji Kozai, Takeshi Nishiyama
  • Publication number: 20080048808
    Abstract: A silent electromagnetic relay in which a predetermined degree of silencing effect can be maintained regardless of a change to the specification, a higher silencing effect can be obtained at the time of return, the parts control is easy, and the cost of manufacturing is low. A first silent spring is mounted in a position of an inward face of a moving iron to be attracted to an iron core of an electromagnet portion, and an L-shaped moving iron turning based on excitation and demagnetization of the electromagnet portion is housed in a housing that is a resin molded product. Furthermore, a second silent spring for coming in contact with an inner face of the housing is mounted to an outward face of the moving iron and on an opposite side to the first silent spring.
    Type: Application
    Filed: August 21, 2007
    Publication date: February 28, 2008
    Applicant: OMRON Corporation
    Inventors: Yuji Kozai, Takeshi Nishiyama