公开(公告)号：US12229352B2

公开(公告)日：2025-02-18

申请号：US18492604

申请日：2023-10-23

Applicant: Wacom Co., Ltd.

Inventor： Kohei Tanaka ,  Takenori Kaneda ,  Hideyuki Hara ,  Noboru Yamaguchi ,  Toru Tsunekawa

IPC: G06F3/0354 ,  G06F3/038 ,  G06F3/044

Abstract: An electronic pent includes a case, a core body, and a signal generation circuit. The core body is attached inside the case such that a front end portion in an axial direction protrudes from an opening portion of the case. The signal generation circuit generates a signal to be transmitted from the core body. The core body includes a core rod and a protection member that covers a pen tip portion and an axis portion of the core rod. The core body is provided with a middle portion with a dielectric constant different from a dielectric constant of the protection member, the middle portion being provided around a side surface of the axis portion of the core rod such that the core rod is separated from the protection member.