公开(公告)号：US12285600B2

公开(公告)日：2025-04-29

申请号：US17757966

申请日：2020-12-18

Applicant: OSAKA UNIVERSITY

Inventor： Seiji Kameda ,  Masayuki Hirata

IPC: H03F1/30 ,  A61N1/02 ,  A61N1/08 ,  G01K7/00 ,  G05F1/567 ,  H03G3/10 ,  H03K17/081 ,  H03K17/08

Abstract: A resistance device (100) includes a field-effect transistor (TN) and a voltage applying circuit (1). The voltage applying circuit (1) applies a control voltage (Vgs) between the gate and source of the field-effect transistor (TN) according to a temperature (T) to control a resistance value (R) between the drain and source of the field-effect transistor (TN). The control voltage (Vgs) is a voltage obtained by adding a correction voltage (Vc) to a reference voltage (Vgs0). The correction voltage (Vc) depends on the temperature (T) and is set to be zero at a first temperature (T1).

公开(公告)号：US11779278B2

公开(公告)日：2023-10-10

申请号：US16484922

申请日：2018-02-09

Applicant: NIHON KOHDEN CORPORATION ,  OSAKA UNIVERSITY ,  NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY ,  SPChange, LLC.

Inventor： Kaoru Imajo ,  Katsuyoshi Suzuki ,  Masayuki Hirata ,  Seiji Kameda ,  Takafumi Suzuki ,  Hiroshi Ando ,  Takatsugu Kamata

IPC: A61B5/00 ,  A61B5/291

CPC classification number: A61B5/6868 ,  A61B5/0006 ,  A61B5/0031 ,  A61B5/291

Abstract: An internal device (1) is implanted in a living body (300). A control section (6) causes a communication section (5) to wirelessly transmit data corresponding to electroencephalogram signals of the living body (300) which are detected through a group of N (N is 2 or more) electrodes, to an external device (200). When the communication section (5) receives a designation signal designating a group of M electrode(s) (2a), M being smaller than N, the communication section (5) is caused to transmit data corresponding to electroencephalogram signals of the living body (300) which are detected through the group of M electrode(s) (2a), to the external device (200) in real time.