Patents by Inventor Gunji Ishihara

Gunji Ishihara 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: 11269464
    Abstract: An electronic pen includes a tubular casing, and a first coupling member and a second coupling member that are coupled to each other in a hollow portion of the casing in an axial direction of the casing. In the axial direction, the first coupling member and the second coupling member are coupled to each other, and in a coupling portion between the first coupling member and the second coupling member, a welded portion that attaches the first coupling member and the second coupling member to each other is formed. The first coupling member is coupled to a core. The second coupling member holds a printed circuit board. The core of the core-side component is made of a conductive material. The second coupling member includes a conductor that supplies, to the core, a signal from a signal transmitting circuit on the printed circuit board with a battery.
    Type: Grant
    Filed: April 14, 2021
    Date of Patent: March 8, 2022
    Assignee: Wacom Co., Ltd.
    Inventors: Kohei Tanaka, Hiroyuki Fujitsuka, Kenichi Ninomiya, Takenori Kaneda, Gunji Ishihara, Takashi Yamaguchi, Taketoshi Ito, Shuanglei Li
  • Publication number: 20210232261
    Abstract: An electronic pen includes a tubular casing, and a first coupling member and a second coupling member that are coupled to each other in a hollow portion of the casing in an axial direction of the casing. In the axial direction, the first coupling member and the second coupling member are coupled to each other, and in a coupling portion between the first coupling member and the second coupling member, a welded portion that attaches the first coupling member and the second coupling member to each other is formed. The first coupling member is coupled to a core. The second coupling member holds a printed circuit board. The core of the core-side component is made of a conductive material. The second coupling member includes a conductor that supplies, to the core, a signal from a signal transmitting circuit on the printed circuit board with a battery.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 29, 2021
    Inventors: Kohei TANAKA, Hiroyuki Fujitsuka, Kenichi Ninomiya, Takenori Kaneda, Gunji Ishihara, Takashi Yamaguchi, Taketoshi Ito, Shuanglei Li
  • Patent number: 11010002
    Abstract: An electronic pen includes a tubular casing, and a first coupling member and a second coupling member that are coupled to each other in a hollow portion of the casing in an axial direction of the casing. In the axial direction, the first coupling member and the second coupling member are coupled to each other while partially overlapping each other, and in a coupling portion between the first coupling member and the second coupling member, a welded portion that attaches the first coupling member and the second coupling member to each other is formed.
    Type: Grant
    Filed: March 4, 2020
    Date of Patent: May 18, 2021
    Assignee: Wacom Co., Ltd.
    Inventors: Kohei Tanaka, Hiroyuki Fujitsuka, Kenichi Ninomiya, Takenori Kaneda, Gunji Ishihara, Takashi Yamaguchi, Taketoshi Ito, Shuanglei Li
  • Publication number: 20200201455
    Abstract: An electronic pen includes a tubular casing, and a first coupling member and a second coupling member that are coupled to each other in a hollow portion of the casing in an axial direction of the casing. In the axial direction, the first coupling member and the second coupling member are coupled to each other while partially overlapping each other, and in a coupling portion between the first coupling member and the second coupling member, a welded portion that attaches the first coupling member and the second coupling member to each other is formed.
    Type: Application
    Filed: March 4, 2020
    Publication date: June 25, 2020
    Inventors: Kohei TANAKA, Hiroyuki FUJITSUKA, Kenichi NINOMIYA, Takenori KANEDA, Gunji ISHIHARA, Takashi YAMAGUCHI, Taketoshi ITO, Shuanglei LI
  • Patent number: 9665190
    Abstract: A position indicator includes: a chassis; a substrate disposed inside the chassis; a coil; capacitors disposed on the substrate; interconnects disposed on the substrate such that each at least partially connects a respective one of the capacitors to the coil in parallel; and pairs of land patterns. Each pair of land patterns includes a first land pattern and a second land pattern. Each of the interconnects has a first end connected to a first end of the coil and a second end connected to a second end of the coil, and is connected to one of the capacitors. The pairs of land patterns are disposed such that each of the interconnects is at least partially interposed between the first land pattern and the second land pattern of one of the pairs of land patterns.
    Type: Grant
    Filed: July 27, 2015
    Date of Patent: May 30, 2017
    Assignee: Wacom Co., Ltd.
    Inventors: Hiromichi Kanzaki, Gunji Ishihara, Taketoshi Ito, Takashi Yamaguchi, Oki Nagashima
  • Publication number: 20160034049
    Abstract: A position indicator includes: a chassis; a substrate disposed inside the chassis; a coil; capacitors disposed on the substrate; interconnects disposed on the substrate such that each at least partially connects a respective one of the capacitors to the coil in parallel; and pairs of land patterns. Each pair of land patterns includes a first land pattern and a second land pattern. Each of the interconnects has a first end connected to a first end of the coil and a second end connected to a second end of the coil, and is connected to one of the capacitors. The pairs of land patterns are disposed such that each of the interconnects is at least partially interposed between the first land pattern and the second land pattern of one of the pairs of land patterns.
    Type: Application
    Filed: July 27, 2015
    Publication date: February 4, 2016
    Inventors: Hiromichi Kanzaki, Gunji Ishihara, Taketoshi Ito, Takashi Yamaguchi, Oki Nagashima