Samsung Electronics Co., Ltd.

Nissan Motor Company Limited

Kyoto University

Masaki Ono

Taro Yoshida

Tomoyuki Kanagawa

Masashi Sasagawa

Yutaka Yagi

Masayuki Otawara

Nobuharu Nishikoori

Hiroyuki Miyake

Zempachi Ogumi

Yasuyuki Yamada

Akiyoshi Nakata

Yuichi Takeda

Hajime Arai

Seisaku Oosako

Nobuhara Nishikoori

Masayuki Ohtawara

An induction heating apparatus is provided. The induction heating apparatus includes a heating coil configured to heat an object to be heated, a full-bridge type inverter configured to supply power to the heating coil, a capacitor provided between an intermediate node of one arm of the inverter and one end of the heating coil, and a first relay provided between the intermediate node and the other end of the heating coil. An intermediate node of the other arm of the inverter and an intermediate point of the heating coil are connected through a first wire. The induction heating apparatus includes a processor configured to open or close the first relay based on an impedance of the object to be heated.

Induction heating apparatus

An induction heating cooker for achieving high output of power and small thickness is provided. The induction heating cooker includes a main body provided at an upper side with a top plate, a heating coil to induction-heat a heating object loaded on the top plat, and a blower device configured to draw external air into the main body and blow the air into the heating coil. The heating coil and the blower device are accommodated in the main body. The main body is provided therein with a first flow path allowing air blown by the blowing device to be supplied toward the heating coil from an outer periphery side and a second flow path allowing air blown by the blowing device to be supplied toward the heating coil from a lower side.

Induction heating cooker

An induction heating apparatus is provided. The induction heating apparatus includes a heating coil, an inverter, a current sensor configured to measure a driving current supplied from the inverter to the heating coil, and a controller configured to provide a drive signal to the inverter to allow the driving current to follow a target current based on a user input. The controller reduces a driving duty of the drive signal based on the driving current exceeding a predetermined reference current, and the controller provides a drive signal to the inverter to allow the driving current to follow a current less than the target current, based on the driving current being less than or equal to the predetermined reference current after reducing the driving duty of the drive signal.

A converter includes a converter circuit including a rectifying section to rectify an alternating current (AC) voltage and a smoothing section to smooth a direct current (DC) voltage rectified by the rectifying section, a diagnostic device configured to diagnose an abnormality of the converter circuit, an inrush current preventing section configured to prevent inrush current from being supplied to the smoothing section, and a switching section configured to supply the AC voltage to the converter circuit through a path different from a voltage supply path of the inrush current preventing section, wherein the diagnostic device determines an abnormal region of the converter circuit by controlling the inrush current preventing section and the switching section.

Converter, inverter, AC motor driving apparatus, and air conditioner using the same

A zinc anode material for secondary cells includes zinc-containing particles that are coated with a coating composition containing at least one oxide of a metal selected from titanium, zirconium, magnesium, tin and yttrium. The surface localization ratio of the coating composition of Equation (1) ranges from 1.6 to 16. In Equation (1), the surface metal atomic ratio of the coating composition is represented by Equation (2), and the bulk metal atomic ratio of the coating composition is represented by Equation (3). 

Zinc negative electrode material for secondary cell

Growing community of inventors

Kanagawa, Japan

Masaki Ono