Patents by Inventor Hitoshi Iwama

Hitoshi Iwama 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: 11855035
    Abstract: A stack of electrical components has a first electrical component having a first surface, a second surface that is opposite to the first surface and a side surface that is located between the first surface and the second surface; a second electrical component having a third surface on which the first electrical component is mounted, the third surface facing the second surface and forming a corner portion between the third surface and the side surface; an adhesive layer that bonds the first electrical component to the second electrical component, the adhesive layer has a first portion that is located between the second and third surface and a second portion that is made of a same material as the first portion and that fills the corner portion; and a conductive layer that extends on a side of the side surface, curves along the second portion and extends to the third surface.
    Type: Grant
    Filed: June 29, 2021
    Date of Patent: December 26, 2023
    Assignee: TDK Corporation
    Inventors: Yohei Hirota, Hiroshi Yamazaki, Hitoshi Iwama, Yusuke Takahashi
  • Publication number: 20210327846
    Abstract: A stack of electrical components has a first electrical component having a first surface, a second surface that is opposite to the first surface and a side surface that is located between the first surface and the second surface; a second electrical component having a third surface on which the first electrical component is mounted, the third surface facing the second surface and forming a corner portion between the third surface and the side surface; an adhesive layer that bonds the first electrical component to the second electrical component, the adhesive layer has a first portion that is located between the second and third surface and a second portion that is made of a same material as the first portion and that fills the corner portion; and a conductive layer that extends on a side of the side surface, curves along the second portion and extends to the third surface.
    Type: Application
    Filed: June 29, 2021
    Publication date: October 21, 2021
    Inventors: Yohei HIROTA, Hiroshi YAMAZAKI, Hitoshi IWAMA, Yusuke TAKAHASHI
  • Patent number: 11088106
    Abstract: A stack of electrical components has a first electrical component having a first surface, a second surface that is opposite to the first surface and a side surface that is located between the first surface and the second surface; a second electrical component having a third surface on which the first electrical component is mounted, the third surface facing the second surface and forming a corner portion between the third surface and the side surface; an adhesive layer that bonds the first electrical component to the second electrical component, wherein the adhesive layer has a first portion that is located between the second surface and the third surface and a curved second portion that fills the corner portion; and a conductive layer that extends on a side of the side surface, curves along the second portion and extends to the third surface.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: August 10, 2021
    Assignee: TDK Corporation
    Inventors: Yohei Hirota, Hiroshi Yamazaki, Hitoshi Iwama, Yusuke Takahashi
  • Publication number: 20200118963
    Abstract: A stack of electrical components has a first electrical component having a first surface, a second surface that is opposite to the first surface and a side surface that is located between the first surface and the second surface; a second electrical component having a third surface on which the first electrical component is mounted, the third surface facing the second surface and forming a corner portion between the third surface and the side surface; an adhesive layer that bonds the first electrical component to the second electrical component, wherein the adhesive layer has a first portion that is located between the second surface and the third surface and a curved second portion that fills the corner portion; and a conductive layer that extends on a side of the side surface, curves along the second portion and extends to the third surface.
    Type: Application
    Filed: August 30, 2019
    Publication date: April 16, 2020
    Inventors: Yohei HIROTA, Hiroshi YAMAZAKI, Hitoshi IWAMA, Yusuke TAKAHASHI
  • Patent number: 8205323
    Abstract: In a manufacturing method for a head gimbal assembly, before mounting a slider on a suspension, coating films each made of solder are formed on respective terminals of a plurality of leads to be connected to a plurality of electrode pads of the slider. After mounting the slider on the suspension, the coating films are heated with laser light to thereby melt the solder, with the respective terminals of the plurality of leads in contact with the corresponding electrode pads via the respective coating films, whereby the terminals are electrically and physically connected to the electrode pads.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: June 26, 2012
    Assignee: TDK Corporation
    Inventor: Hitoshi Iwama
  • Publication number: 20110146059
    Abstract: In a manufacturing method for a head gimbal assembly, before mounting a slider on a suspension, coating films each made of solder are formed on respective terminals of a plurality of leads to be connected to a plurality of electrode pads of the slider. After mounting the slider on the suspension, the coating films are heated with laser light to thereby melt the solder, with the respective terminals of the plurality of leads in contact with the corresponding electrode pads via the respective coating films, whereby the terminals are electrically and physically connected to the electrode pads.
    Type: Application
    Filed: December 22, 2009
    Publication date: June 23, 2011
    Applicant: SAE MAGNETICS (H.K.) LTD.
    Inventor: Hitoshi Iwama