Patents by Inventor Yuji Umemura

Yuji Umemura 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: 20230257518
    Abstract: The resin composition includes a liquid crystal polyester resin (A) and a filler (B), in which (1) liquid crystal polyester resin (A) contains a structural unit (I) derived from 6-hydroxy-2-naphthoic acid, a structural unit (II) derived from an aromatic diol compound, and a structural unit (III) derived from an aromatic dicarboxylic acid compound, wherein structural unit (III) contains a structural unit (IIIA) derived from terephthalic acid and/or a structural unit (IIIB) derived from 2,6-naphthalenedicarboxylic acid, (2) 40% by mol?structural unit (I)?75% by mol, 12% by mol?structural unit (II)?30% by mol, and 12% by mol?structural unit (III)?30% by mol, (3) filler (B) is at least one of silica, mica, and talc, and (4) the resin composition has a dielectric tangent of 1.0×10?3 or less as measured by a cavity resonator perturbation method at 10 GHz.
    Type: Application
    Filed: June 28, 2021
    Publication date: August 17, 2023
    Applicant: ENEOS Corporation
    Inventors: Yuji UMEMURA, Nozomi ONO
  • Publication number: 20210176825
    Abstract: Provided is a heater that is excellent in heat equalizing property even when being narrow in a sweep direction. Also provided are a fixing device, an image-forming device, and a heating device each including such a heater. A heater is configured to heat an object to be heated in such a manner that at least one of the object to be heated and the heater is swept with the heater disposed opposite the object to be heated. The heater includes a base having a rectangular shape and a plurality of heating cells each independently receiving power supply, the heating cells being disposed on the base and arranged in a longitudinal direction of the base. Each of the heating cells includes a plurality of lateral wires extending in substantially parallel with the longitudinal direction of the base and a plurality of oblique wires tilted relative to the lateral wires.
    Type: Application
    Filed: December 7, 2018
    Publication date: June 10, 2021
    Applicant: Misuzu Industry Co., Ltd.
    Inventors: Yuji UMEMURA, Tomoyoshi AOYAMA, Shohei KATO, Miho MATSUDA
  • Patent number: 8888520
    Abstract: The invention is embodied in a contact that is fixed in a housing of a socket to be connected with an electronic component and makes a contact with an electrical contact of the electronic component. The contact has a pair of contact pins and a spring member. Each of the contact pins includes a straight section approximately straightly extending from a first end section to a second end section, and are coupled with each other in an attitude in which the first end section is respectively oriented to the second end section and the respective straight sections overlap with each other, and each of the contact pins includes a clip section being folded back in a curve from the second end section to cooperate with the second end section to pinch the first end section of a counterpart therebetween. The spring member surrounds both of the straight sections of the pair of contact pins and gives a force in a direction in which the clip sections of the pair of contact pins are moved away from each other.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: November 18, 2014
    Assignee: Tyco Electronics Japan G.K.
    Inventor: Yuji Umemura
  • Publication number: 20120329338
    Abstract: The invention is embodied in a contact that is fixed in a housing of a socket to be connected with an electronic component and makes a contact with an electrical contact of the electronic component. The contact has a pair of contact pins and a spring member. Each of the contact pins includes a straight section approximately straightly extending from a first end section to a second end section, and are coupled with each other in an attitude in which the first end section is respectively oriented to the second end section and the respective straight sections overlap with each other, and each of the contact pins includes a clip section being folded back in a curve from the second end section to cooperate with the second end section to pinch the first end section of a counterpart therebetween. The spring member surrounds both of the straight sections of the pair of contact pins and gives a force in a direction in which the clip sections of the pair of contact pins are moved away from each other.
    Type: Application
    Filed: June 22, 2012
    Publication date: December 27, 2012
    Inventor: Yuji Umemura
  • Publication number: 20120294017
    Abstract: A light emitting diode (LED) connector for connecting to a LED module has a connector board, a module contact and an electrical wire connection section. The connector board has an opening exposing a light emitting section of the LED module, and a trace formed on a contact surface thereof facing the LED module. The connector board covers a portion of the LED module. The module contact on the contact surface is electrically connected to the trace and electrically connectable with a contact pad of the LED module. The electrical wire connection section on the contact surface, is electrically connected to the trace and electrically connectable with an electrical wire.
    Type: Application
    Filed: May 18, 2012
    Publication date: November 22, 2012
    Inventors: Taisuke Nagasaki, Yuji Umemura
  • Patent number: 7591682
    Abstract: A connector which makes it possible to take out a holding member thereof from a housing without breaking the housing. The housing is formed by a main housing and a sub housing connected to the main housing. The main housing is formed with a hole having a contact portion-accommodating portion and a contact-inserting portion. In the sub housing, there is formed a clip-accommodating hole which is opposed to the contact portion-accommodating portion and the contact-inserting portion in the directions of insertion and removal of the contact, when the sub housing is connected to the main housing. The inner diameter of the clip-accommodating hole is set to be larger than the inner diameter of the contact portion-accommodating portion and that of the contact-inserting portion. The clip is accommodated in the clip-accommodating hole.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: September 22, 2009
    Assignee: Japan Aviation Electronics Industry Limited
    Inventors: Yuji Umemura, Yukitaka Tanaka, Goro Haga
  • Publication number: 20080299832
    Abstract: A connector which makes it possible to take out a holding member thereof from a housing without breaking the housing. The housing is formed by a main housing and a sub housing connected to the main housing. The main housing is formed with a hole having a contact portion-accommodating portion and a contact-inserting portion. In the sub housing, there is formed a clip-accommodating hole which is opposed to the contact portion-accommodating portion and the contact-inserting portion in the directions of insertion and removal of the contact, when the sub housing is connected to the main housing. The inner diameter of the clip-accommodating hole is set to be larger than the inner diameter of the contact portion-accommodating portion and that of the contact-inserting portion. The clip is accommodated in the clip-accommodating hole.
    Type: Application
    Filed: May 19, 2008
    Publication date: December 4, 2008
    Applicant: Japan Aviation Electronics Industry, Limited
    Inventors: Yuji Umemura, Yukitaka Tanaka, Goro Haga