Patents by Inventor Yukihiro Kitaichi

Yukihiro Kitaichi 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: 20200161816
    Abstract: A connector including a first connector and a second connector configured to face each to fit together. The first connector includes a first internal terminal including terminals along a longitudinal direction, a first insulating member supporting the first internal terminal, and first external terminals at two ends of the first internal terminal in the longitudinal direction. The second connector includes a second internal terminal including terminals along a longitudinal direction and that engages with the first internal terminal, a second insulating member supporting the second internal terminal, and second external terminals at two ends of the second internal terminal in the longitudinal direction. The first connector includes projecting portions that project further toward the second connector than the first internal terminal does in a fitting direction. The second connector includes recesses that accommodate the projecting portions and guiding portions, each being in a vicinity of one of the recesses.
    Type: Application
    Filed: January 22, 2020
    Publication date: May 21, 2020
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yuma AMEMORI, Mitsuo IWATA, Yukihiro KITAICHI, Shingo NAKAMURA
  • Patent number: 10641814
    Abstract: A probe structure for inspecting characteristics of a connector having at least one terminal includes a plunger, a coaxial probe, a flange, a housing, and a spring. A first end portion of the housing and the flange are configured to restrict rotation of the housing in the circumferential direction in a state in which the first end portion of the housing is fitted into the through-hole of the flange. Thus, inspection of characteristics of the terminal of the connector can be performed with higher accuracy.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: May 5, 2020
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shinichi Kenzaki, Yukihiro Kitaichi
  • Publication number: 20200099180
    Abstract: An L-shaped coaxial connector having a coaxial cable includes a coaxial cable including a central conductor portion and an external conductor portion disposed around the central conductor portion and a center conductor portion, an internal terminal connected to the central conductor portion, an external terminal connected to the external conductor portion, and an insulating member disposed between the internal and external terminals. The external terminal includes a cylindrical portion surrounding the first terminal portion and extending in a cylindrical shape in a direction intersecting an axial direction of the coaxial cable. The internal terminal includes a male type first terminal portion having a cylindrical shape and extending in the direction intersecting the axial direction, and a second terminal portion extending to connect from the first terminal portion to the central conductor portion.
    Type: Application
    Filed: November 27, 2019
    Publication date: March 26, 2020
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Yukihiro KITAICHI, Aoi TANAKA, Kenichi TAKADA, Fumio MIZUKI, Kazuo SHIMA, Daisuke OKADA
  • Publication number: 20190310301
    Abstract: A probe structure for inspecting characteristics of a connector having at least one terminal includes a plunger, a coaxial probe, a flange, a housing, and a spring. A first end portion of the housing and the flange are configured to restrict rotation of the housing in the circumferential direction in a state in which the first end portion of the housing is fitted into the through-hole of the flange. Thus, inspection of characteristics of the terminal of the connector can be performed with higher accuracy.
    Type: Application
    Filed: June 21, 2019
    Publication date: October 10, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Shinichi KENZAKI, Yukihiro KITAICHI
  • Patent number: 10431943
    Abstract: A coaxial inspection connector comprises an outer conductor including first and second housings having tubular shapes extending in a first direction, and a center conductor including first and second center conductor portions extending in the first direction, with the first conductor portion fixed to the first housing by a first bushing. The first housing supporting the second housing with an end portion of the second housing on one side in the first direction swinging in a second direction perpendicular to the first direction. The second center conductor portion includes a swing portion supported by the first center conductor portion with an end portion of the second center conductor portion on the one side in the first direction swinging in the second direction, and a tip portion including the end portion on the one side in the first direction and movable in the first direction relative to the swing portion.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: October 1, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Manabu Abe, Yukihiro Kitaichi
  • Publication number: 20190280409
    Abstract: A multipolar connector set includes a first connector and a second connector fitted together. The first connector includes first inner terminals arranged in multiple rows and a first insulating member configured to hold the first inner terminals, and the second connector includes second inner terminals arranged in multiple rows and a second insulating member configured to hold the second inner terminals. The multipolar connector set further includes a conductive shielding member disposed between adjacent rows of the first or second inner terminals in a fitted state where the first connector and the second connector are fitted together, with the first inner terminals being in contact the second inner terminals.
    Type: Application
    Filed: May 30, 2019
    Publication date: September 12, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Hiroyuki HOSHIBA, Minoru IKEDA, Yuma AMEMORI, Yukihiro KITAICHI, Minoru MAMURO
  • Patent number: 10396479
    Abstract: A multipolar connector set includes a first connector and a second connector fitted together. The first connector includes first inner terminals arranged in multiple rows and a first insulating member configured to hold the first inner terminals, and the second connector includes second inner terminals arranged in multiple rows and a second insulating member configured to hold the second inner terminals. The multipolar connector set further includes a conductive shielding member disposed between adjacent rows of the first or second inner terminals in a fitted state where the first connector and the second connector are fitted together, with the first inner terminals being in contact the second inner terminals.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: August 27, 2019
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiroyuki Hoshiba, Minoru Ikeda, Yuma Amemori, Yukihiro Kitaichi, Minoru Mamuro
  • Publication number: 20190250189
    Abstract: A probe for inspecting characteristics of a terminal of a multipolar connector includes a flange having a through hole and serving to mount the probe to a facility; and a coaxial cable inserted through the through hole of the flange, extending in an axial direction, and having an end portion at which a probe pin is mounted. The probe also includes a plunger containing the probe pin and having a recess for fitting the multipolar connector, with the probe pin being exposed in the recess. The probe further includes a spring containing the coaxial cable between the flange and the plunger and having an end portion fixed to the flange and another end portion fixed to the plunger.
    Type: Application
    Filed: January 14, 2019
    Publication date: August 15, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Shinichi KENZAKI, Yukihiro KITAICHI
  • Publication number: 20190115700
    Abstract: A coaxial inspection connector comprises an outer conductor including first and second housings having tubular shapes extending in a first direction, and a center conductor including first and second center conductor portions extending in the first direction, with the first conductor portion fixed to the first housing by a first bushing. The first housing supporting the second housing with an end portion of the second housing on one side in the first direction swinging in a second direction perpendicular to the first direction. The second center conductor portion includes a swing portion supported by the first center conductor portion with an end portion of the second center conductor portion on the one side in the first direction swinging in the second direction, and a tip portion including the end portion on the one side in the first direction and movable in the first direction relative to the swing portion.
    Type: Application
    Filed: December 13, 2018
    Publication date: April 18, 2019
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Manabu ABE, Yukihiro KITAICHI
  • Publication number: 20180205165
    Abstract: A multipolar connector set includes a first connector and a second connector fitted together. The first connector includes first inner terminals arranged in multiple rows and a first insulating member configured to hold the first inner terminals, and the second connector includes second inner terminals arranged in multiple rows and a second insulating member configured to hold the second inner terminals. The multipolar connector set further includes a conductive shielding member disposed between adjacent rows of the first or second inner terminals in a fitted state where the first connector and the second connector are fitted together, with the first inner terminals being in contact the second inner terminals.
    Type: Application
    Filed: January 17, 2018
    Publication date: July 19, 2018
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Hiroyuki Hoshiba, Minoru Ikeda, Yuma Amemori, Yukihiro Kitaichi, Minoru Mamuro
  • Patent number: 9236695
    Abstract: In a coaxial connector, a body part includes an upper surface, a bottom surface, a side surface, and a hole provided in the upper surface so that a substantially rodlike probe is to be inserted therein from an upper side. A fixed terminal is fixed to the body part. A movable terminal includes a lead portion disposed on the side surface, a fixed portion bent relative to the lead portion to extend in a horizontal direction and fixed to the body part, and a leaf spring portion bent relative to the lead portion to extend in the horizontal direction and contacting the fixed terminal from a lower side. The leaf spring portion is separated from the fixed terminal when pressed down by the probe.
    Type: Grant
    Filed: February 6, 2014
    Date of Patent: January 12, 2016
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiroyuki Hoshiba, Yukihiro Kitaichi
  • Patent number: 9172194
    Abstract: An outer conductor has a substantially cylindrical shape extending in an axial direction. A center conductor has a substantially cylindrical shape extending in the axial direction, and is provided inside the outer conductor. An insulator fixes the center conductor relative to the outer conductor. The center conductor is provided with a hole that communicates with the inside and the outside of the center conductor. The insulator extends, via the hole, to the inside of the center conductor from the outside.
    Type: Grant
    Filed: October 26, 2012
    Date of Patent: October 27, 2015
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takashi Maruyama, Yukihiro Kitaichi, Shinichi Kenzaki, Hiroki Wakamatsu
  • Publication number: 20140227906
    Abstract: In a coaxial connector, a body part includes an upper surface, a bottom surface, a side surface, and a hole provided in the upper surface so that a substantially rodlike probe is to be inserted therein from an upper side. A fixed terminal is fixed to the body part. A movable terminal includes a lead portion disposed on the side surface, a fixed portion bent relative to the lead portion to extend in a horizontal direction and fixed to the body part, and a leaf spring portion bent relative to the lead portion to extend in the horizontal direction and contacting the fixed terminal from a lower side. The leaf spring portion is separated from the fixed terminal when pressed down by the probe.
    Type: Application
    Filed: February 6, 2014
    Publication date: August 14, 2014
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Hiroyuki HOSHIBA, Yukihiro KITAICHI
  • Patent number: 8678836
    Abstract: An outer conductor portion includes an outer conductor and a pair of outer terminals. The outer conductor is formed into a substantially cylindrical shape extending in the z-axis direction. The outer terminals are drawn toward the positive z-axis direction side of the outer conductor. In a plan view in the z-axis direction, the outer terminals are each bent in a direction outwardly from the outer conductor, and face each other across the outer conductor. An insulator has two sides, an upper surface in contact with a positive z-axis direction-side end portion of the outer conductor, and a lower surface in contact with the outer terminals at the sides, and thereby is nipped by the outer conductor portion in the z-axis direction. A central conductor is attached to the insulator, and is provided in a region surrounded by the outer conductor.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: March 25, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shinichi Kenzaki, Yukihiro Kitaichi, Hiroki Wakamatsu, Takashi Maruyama
  • Patent number: 7915971
    Abstract: A nonreciprocal circuit device includes a ferrite-magnet element having ferrite provided with first and second central electrodes intersecting each other in an insulated manner and two permanent magnets arranged to sandwich the ferrite to apply a DC magnetic field thereto, a substrate on which the ferrite-magnet element and matching circuit elements are mounted, and a flat plate yoke. A first resin layer made of a cured liquid resin is provided at bonding portions of the ferrite-magnet element to the substrate, and a second resin layer made of a cured soft sheet-shaped resin adhered to a rear surface of the flat plate yoke is provided around the ferrite-magnet element and the matching circuit elements.
    Type: Grant
    Filed: April 16, 2009
    Date of Patent: March 29, 2011
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Shigeji Arakawa, Yukihiro Kitaichi, Takashi Kadooka
  • Patent number: 7629867
    Abstract: A filter element includes a flat dielectric substrate, a ground electrode on a back main surface of the dielectric substrate, resonant lines each having a shorting end in the vicinity of a border between a side of the dielectric substrate and the ground electrode and extending from the side to a front main surface of the dielectric substrate. The resonant lines and the ground electrode constitute strip-line resonators. In any of the strip-line resonators, the line width of the resonant-line side portion is different from the line width of the resonant-line main-surface portion.
    Type: Grant
    Filed: February 26, 2008
    Date of Patent: December 8, 2009
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tatsuya Tsujiguchi, Yukihiro Kitaichi
  • Publication number: 20090273410
    Abstract: A nonreciprocal circuit device includes a ferrite-magnet element having ferrite provided with first and second central electrodes intersecting each other in an insulated manner and two permanent magnets arranged to sandwich the ferrite to apply a DC magnetic field thereto, a substrate on which the ferrite-magnet element and matching circuit elements are mounted, and a flat plate yoke. A first resin layer made of a cured liquid resin is provided at bonding portions of the ferrite-magnet element to the substrate, and a second resin layer made of a cured soft sheet-shaped resin adhered to a rear surface of the flat plate yoke is provided around the ferrite-magnet element and the matching circuit elements.
    Type: Application
    Filed: April 16, 2009
    Publication date: November 5, 2009
    Applicant: Murata Manufacturing Co., Ltd.
    Inventors: Shigeji ARAKAWA, Yukihiro KITAICHI, Takashi KADOOKA
  • Publication number: 20080142251
    Abstract: A chip component is obtained by laminating a dielectric substrate, a first insulating layer provided on a principal surface of the dielectric substrate, and a second insulating layer covering substantially the entire first insulating layer. A circuit pattern includes a resonance line provided in an interface between the dielectric substrate and the first insulating layer. A plurality of through holes (H) are aligned n the first insulating layer along an extending direction of the circuit pattern at locations facing an area within the boundary of the circuit pattern.
    Type: Application
    Filed: February 26, 2008
    Publication date: June 19, 2008
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Tatsuya TSUJIGUCHI, Yukihiro KITAICHI
  • Publication number: 20080143458
    Abstract: A filter element includes a flat dielectric substrate, a ground electrode on a back main surface of the dielectric substrate, resonant lines each having a shorting end in the vicinity of a border between a side of the dielectric substrate and the ground electrode and extending from the side to a front main surface of the dielectric substrate. The resonant lines and the ground electrode constitute strip-line resonators. In any of the strip-line resonators, the line width of the resonant-line side portion is different from the line width of the resonant-line main-surface portion.
    Type: Application
    Filed: February 26, 2008
    Publication date: June 19, 2008
    Applicant: MURATA MANUFACTURING CO., LTD.
    Inventors: Tatsuya TSUJIGUCHI, Yukihiro KITAICHI
  • Patent number: 6914499
    Abstract: A dielectric filter includes a conductive cover formed by bending a metal plate and forming at least one inwardly projecting portion at a predetermined position along the bent portion. The inner surface of the at least one inwardly projecting portion abuts on an open circuit surface or edge of a dielectric block. Thus, the distance between the open circuit surface of the filter and the conductive cover is reliably maintained and unnecessary coupling between adjacent resonators is prevented.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: July 5, 2005
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yukihiro Kitaichi, Takashi Maruyama, Yasuo Yamada