Kabushiki Kaisha Toshiba

Panasonic Corporation

Panasonic Intellectual Property Corporation of America

Tomoki Katsumata

Shota Teramoto

Koji Hakamata

Yuichiro Yamashita

Atuhiko Hasigaya

According to an embodiment, an electric power transmitter has a first electric power transmitting unit, a second electric power transmitting unit, a first detecting unit configured to detect a first placed object on the first electric power transmitting unit, a second detecting unit configured to detect a second placed object on the second electric power transmitting unit, a timer unit configured to, when the first placed object on the first electric power transmitting unit is detected, start driving, and a judging unit configured to, when the second placed object on the second electric power transmitting unit is detected within a predetermined time period from driving of the timer unit, judge that the first placed object and the second placed object are one common placed object.

Electric power transmitter, electric power transmission method and semiconductor device

An electronic device includes a power receiving unit and a secondary battery. The electronic device can send an instruction to an outside to stop power transmission, and operates by a discharge current of the secondary battery. In a case where the secondary battery is charged and a voltage of the secondary battery becomes higher than a first threshold and lower than a second threshold larger than the first threshold, charging of the secondary battery is stopped without sending the instruction to stop the power transmission, and after an elapse of a predetermined period of time, the charging of the secondary battery is restarted. When the voltage of the secondary battery thereafter becomes higher than the second threshold, the instruction to stop the power transmission is sent, and the charging of the secondary battery is stopped.

Electronic device and electronic device charging system

To provide a portable terminal which can detect the using modes of the portable terminal, can reduce the number of members necessary for detecting the using modes and further can reduce leakage magnetic force badly influencing on other devices. A portable terminalincludes a first casingand a second casinghaving inner side surfacescapable of opposing to each other, respectively, and a hingefor coupling the first casingand the first casing. The first casingis provided with magnetic materialsand the casingis provided with magnetic sensorsfor detecting the magnetic materials, respectively. The magnetic sensorsand the magnetic materialsdetect the using modes including a folded state or a bent state of the first casingand the casing

Growing community of inventors

Kanagawa, Japan

Tomoki Katsumata