Patents by Inventor Etsuo Mizushima

Etsuo Mizushima 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: 11339251
    Abstract: The present invention relates to a resin composition comprising a maleimide compound having a saturated or unsaturated divalent hydrocarbon group and a divalent group having at least two imido bonds; and a catalyst comprising at least one selected from the group consisting of an imidazole compound, a phosphorus compound, an azo compound and an organic peroxide.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: May 24, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Yuki Nagai, Tetsuroh Irino, Yuusuke Kondou, Tomio Fukuda, Etsuo Mizushima, Takao Tanigawa
  • Patent number: 11286346
    Abstract: The present invention relates to a resin composition containing a compound having a maleimido group, a divalent group having at least two imido bonds and a saturated or unsaturated divalent hydrocarbon group.
    Type: Grant
    Filed: January 13, 2016
    Date of Patent: March 29, 2022
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Takao Tanigawa, Tetsuroh Irino, Yuusuke Kondou, Yuichi Shimayama, Etsuo Mizushima, Tomio Fukuda, Yuki Nagai, Hikari Murai
  • Patent number: 10957964
    Abstract: Provided is a multilayered transmission line plate including one pair of ground layers, a differential wiring layer disposed between one ground layer and the other ground layer of the one pair of ground layers, a first insulating portion disposed between the differential wiring layer and the one ground layer, and a second insulating portion disposed between the differential wiring layer and the other ground layer, wherein the first insulating portion has a resin layer, the first insulating portion or the second insulating portion has a fiber base material layer including a fiber base material, and a thickness of the first insulating portion is equal to or thinner than a thickness of the second insulating portion.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: March 23, 2021
    Assignee: SHOWA DENKO MATERIALS CO., LTD.
    Inventors: Takao Tanigawa, Tetsurou Irino, Yuusuke Kondou, Etsuo Mizushima, Tomio Fukuda, Yuki Nagai
  • Patent number: 10506705
    Abstract: Provided is a multilayered transmission line plate including a pair of ground layers, a differential wiring disposed between a one-sided ground layer of the pair of ground layers and the other ground layer, an insulating layer (X) disposed between the differential wiring and the one-sided ground layer, and an insulating layer (Y) disposed between the differential wiring and the other ground layer, wherein the insulating layer (X) has a layer containing a resin and not containing a glass cloth; the insulating layer (X) or the insulating layer (Y) has a layer containing a glass cloth and a resin; and the thickness of the insulating layer (X) is equal to or less than the thickness of the insulating layer (Y).
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: December 10, 2019
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Yuusuke Kondou, Etsuo Mizushima, Takao Tanigawa, Yuki Nagai, Tomio Fukuda, Tetsurou Irino
  • Publication number: 20190309130
    Abstract: The present invention relates to a resin composition comprising a maleimide compound having a saturated or unsaturated divalent hydrocarbon group and a divalent group having at least two imido bonds; and a catalyst comprising at least one selected from the group consisting of an imidazole compound, a phosphorus compound, an azo compound and an organic peroxide.
    Type: Application
    Filed: July 4, 2017
    Publication date: October 10, 2019
    Inventors: Yuki NAGAI, Tetsuroh IRINO, Yuusuke KONDOU, Tomio FUKUDA, Etsuo MIZUSHIMA, Takao TANIGAWA
  • Publication number: 20190023899
    Abstract: Provided is a multilayered transmission line plate including one pair of ground layers, a differential wiring layer disposed between one ground layer and the other ground layer of the one pair of ground layers, a first insulating portion disposed between the differential wiring layer and the one ground layer, and a second insulating portion disposed between the differential wiring layer and the other ground layer, wherein the first insulating portion has a resin layer, the first insulating portion or the second insulating portion has a fiber base material layer including a fiber base material, and a thickness of the first insulating portion is equal to or thinner than a thickness of the second insulating portion.
    Type: Application
    Filed: July 20, 2016
    Publication date: January 24, 2019
    Inventors: Takao TANIGAWA, Tetsurou IRINO, Yuusuke KONDOU, Etsuo MIZUSHIMA, Tomio FUKUDA, Yuki NAGAI
  • Publication number: 20180139837
    Abstract: Provided is a multilayered transmission line plate including a pair of ground layers, a differential wiring disposed between a one-sided ground layer of the pair of ground layers and the other ground layer, an insulating layer (X) disposed between the differential wiring and the one-sided ground layer, and an insulating layer (Y) disposed between the differential wiring and the other ground layer, wherein the insulating layer (X) has a layer containing a resin and not containing a glass cloth; the insulating layer (X) or the insulating layer (Y) has a layer containing a glass cloth and a resin; and the thickness of the insulating layer (X) is equal to or less than the thickness of the insulating layer (Y).
    Type: Application
    Filed: November 20, 2015
    Publication date: May 17, 2018
    Inventors: Yuusuke KONDOU, Etsuo MIZUSHIMA, Takao TANIGAWA, Yuki NAGAI, Tomio FUKUDA, Tesurou IRINO
  • Publication number: 20180002485
    Abstract: The present invention relates to a resin composition containing a compound having a maleimido group, a divalent group having at least two imido bonds and a saturated or unsaturated divalent hydrocarbon group.
    Type: Application
    Filed: January 13, 2016
    Publication date: January 4, 2018
    Applicant: Hitachi Chemical Company, LTD.
    Inventors: Takao TANIGAWA, Tetsuroh IRINO, Yuusuke KONDOU, Yuichi SHIMAYAMA, Etsuo MIZUSHIMA, Tomio FUKUDA, Yuki NAGAI, Hikari MURAI
  • Patent number: 9397381
    Abstract: This electromagnetic coupling structure includes a laminated body that is laminated with an inner dielectric layer interposed between inner conductive layers, one pair of outer dielectric layers facing each other with the laminated body interposed therebetween, and one pair of outer conductive layers facing each other with the one pair of outer dielectric layers interposed therebetween. The one pair of outer conductive layers include wiring portions and conductive patch portions disposed at front ends of the wiring portions, and the conductive patch portions have portions longer than the wiring portions in a direction perpendicular to an extending direction of the wiring portions. In the laminated body, a hole passing through the inner dielectric layer and the inner conductive layers is arranged, and the one pair of outer conductive layers are electromagnetically coupled through a metal film formed inside the hole.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: July 19, 2016
    Assignee: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Yuusuke Kondou, Etsuo Mizushima, Yasushi Watanabe, Yasuyuki Mizuno
  • Publication number: 20130328646
    Abstract: This electromagnetic coupling structure includes a laminated body that is laminated with an inner dielectric layer interposed between inner conductive layers, one pair of outer dielectric layers facing each other with the laminated body interposed therebetween, and one pair of outer conductive layers facing each other with the one pair of outer dielectric layers interposed therebetween. The one pair of outer conductive layers include wiring portions and conductive patch portions disposed at front ends of the wiring portions, and the conductive patch portions have portions longer than the wiring portions in a direction perpendicular to an extending direction of the wiring portions. In the laminated body, a hole passing through the inner dielectric layer and the inner conductive layers is arranged, and the one pair of outer conductive layers are electromagnetically coupled through a metal film formed inside the hole.
    Type: Application
    Filed: November 4, 2011
    Publication date: December 12, 2013
    Applicant: HITACHI CHEMICAL COMPANY, LTD.
    Inventors: Yuusuke Kondou, Etsuo Mizushima, Yasushi Watanabe, Yasuyuki Mizuno
  • Publication number: 20130057365
    Abstract: An electromagnetic field coupling structure that is used in a microwave band frequency band, includes: a laminated body in which an inner dielectric layer 23 is sandwiched and laminated between a plurality of inner conductor layers 12 and 15 which become a plurality of ground layers; a pair of outer dielectric layers 21 and 25 facing each other with the laminated body interposed therebetween; and a pair of outer conductor layers 11 and 16 facing each other with the pair of outer dielectric layers 21 and 25 interposed therebetween. The laminated body is provided with a hole S which penetrates the inner dielectric layer 23 and the inner conductor layers 12 and 15 which become the plurality of ground layers, and the inner conductor layers 12 and 15 which become the plurality of ground layers are electrically connected via a tubular metal film 3 formed on an inner wall of the hole S, whereby the pair of outer conductor layers 11 and 16 are electromagnetically coupled.
    Type: Application
    Filed: March 3, 2011
    Publication date: March 7, 2013
    Inventors: Etsuo Mizushima, Yuusuke Kondou, Yasuyuki Mizuno, Yasushi Watanabe
  • Patent number: 7592250
    Abstract: A multilayer wiring board exhibiting excellent moldability and having a capacitor where variation of capacitance is suppressed, its producing method, a semiconductor device mounting a semiconductor chip on the multilayer wiring board, and a wireless electronic device mounting the semiconductor device.
    Type: Grant
    Filed: January 16, 2007
    Date of Patent: September 22, 2009
    Assignee: Hitachi Chemical Company, Ltd.
    Inventors: Yasushi Shimada, Yoshitaka Hirata, Hiroyuki Kuriya, Kazuhisa Otsuka, Masanori Yamaguchi, Yuichi Shimayama, Ken Madarame, Etsuo Mizushima, Yuusuke Kondou, Kazunori Yamamoto
  • Patent number: 7239013
    Abstract: A multilayer wiring board exhibiting excellent moldability and having a capacitor where variation of capacitance is suppressed, its producing method, a semiconductor device mounting a semiconductor chip on the multilayer wiring board, and a radio electronic device mounting the semiconductor device.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: July 3, 2007
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Yasushi Shimada, Yoshitaka Hirata, Hiroyuki Kuriya, Kazuhisa Otsuka, Masanori Yamaguchi, Yuichi Shimayama, Ken Madarame, Etsuo Mizushima, Yuusuke Kondou, Kazunori Yamamoto
  • Publication number: 20070108588
    Abstract: A multilayer wiring board exhibiting excellent moldability and having a capacitor where variation of capacitance is suppressed, its producing method, a semiconductor device mounting a semiconductor chip on the multilayer wiring board, and a wireless electronic device mounting the semiconductor device.
    Type: Application
    Filed: January 16, 2007
    Publication date: May 17, 2007
    Inventors: Yasushi Shimada, Yoshitaka Hirata, Hiroyuki Kuriya, Kazuhisa Otsuka, Masanori Yamaguchi, Yuichi Shimayama, Ken Madarame, Etsuo Mizushima, Yuusuke Kondou, Kazunori Yamamoto
  • Publication number: 20060063367
    Abstract: A multilayer wiring board exhibiting excellent moldability and having a capacitor where variation of capacitance is suppressed, its producing method, a semiconductor device mounting a semiconductor chip on the multilayer wiring board, and a radio electronic device mounting the semiconductor device.
    Type: Application
    Filed: May 30, 2003
    Publication date: March 23, 2006
    Applicant: Hitachi Chemical Co., Ltd.
    Inventors: Yasushi Shimada, Yoshitaka Hirata, Hiroyuki Kuriya, Kazuhisa Otsuka, Masanori Yamaguchi, Yuichi Shimayama, Ken Madarame, Etsuo Mizushima, Yuusuke Kondou, Kazumori Yamamoto