Fdk Corporation

Katsuki Tsuchiya

Hirohito Teraoka

Yasunari Mizoguchi

Kunihisa Sekiguchi

Kevin Foster

Hiroshi Suzuki

Kenji Kitamura

Tetsuya Suzuki

Takashi Kanou

Mika Takayanagi

Hidetaka Yoshihashi

Kazuta Takeno

Jinfeng Jia

Yutaka Toga

Asuka Takahashi

Battery charger

A terminal structure satisfies the relationships of1&#x3c;1&#x3c;2 and1&#x3c;2=2where Dis the length of a body part of a secondary battery, Dis the total length of the secondary battery, Tis a first inter-contact-terminal distance between a portion of a positive-electrode-side contact terminal and a portion of and a negative-electrode-side contact terminal when the secondary battery is not present between the positive-electrode-side contact terminal and the negative-electrode-side contact terminal, and Tis a second inter-contact-terminal distance between the portion of the positive-electrode-side contact terminal and the portion of and the negative-electrode-side contact terminal when the secondary battery is held between the positive-electrode-side contact terminal and the negative-electrode-side contact terminal, the portion of the positive-electrode-side contact terminal and the portion of the negative-electrode-side contact terminal coming into contact with the positive electrode terminal and the negative electrode terminal of the secondary battery, respectively.

Battery receiving terminal structure

A charger includes: a charging circuit which receives an electric power from external equipment and charges a secondary battery; a control device which determines a power supply capability of the external equipment on the basis of the electric power that is supplied to the charging circuit from the external equipment; and a display device that displays the power supply capability of the external equipment, which has been determined by the control device.

Charger

A battery aligning device includes an inlet through which a first cylindrical battery is input, an outlet from which the first cylindrical battery is discharged, regulating plates constituting a slit in a path from the inlet to the outlet, and a support member which supports one end portion and the other end portion of each of the regulating plates, in the regulating plates, a length from the one end portion to the other end portion is longer than a length of the first cylindrical battery, an X-Z cross-section has a non-linear shape, in an interval between the one regulating plate and the other regulating plate, a facing interval between surfaces is larger than a diameter of the first cylindrical battery, and when a line segment having the same length as that of the first cylindrical battery is in contact with the regulating plate at two points on the X-Z cross-section, a distance between the line segment and the regulating plate is arranged at an interval smaller than the diameter of the first cylindrical battery.

Battery aligning device

A charger of the present invention includes a charging circuit that allows a secondary battery to be charged, a state-of-charge detection circuit that detects a state of charge of the secondary battery, a pictogram display unit that displays the state of charge of the secondary battery, and a control device that controls the charging circuit and the pictogram display unit on the basis of the state of charge of the secondary battery. The control device determines a kind of electronic apparatus available by the secondary battery in accordance with the state of charge of the secondary battery, and then displays the kind of electronic apparatus available on the pictogram display unit.

Charger for determining kind of electronic apparatus acceptable in accordance with state of charge of secondary battery

A contactless rechargeable alkaline secondary battery includes an alkaline secondary battery; a power receiver circuit having receiver coils and a resonance capacitor and adapted to receive AC power via magnetic field resonance, the resonance capacitor connected with the receiver coils Lto L; a rectifier circuit adapted to rectify the AC power; a current limiter circuit adapted to limit a charging current flowing from the rectifier circuit to the alkaline secondary battery; and an outer casing configured to be cylindrical in shape, adapted to house the alkaline secondary battery, and provided with a positive terminal and a negative terminal, the positive terminal being connected with a positive pole of the alkaline secondary battery and the negative terminal being connected with a negative pole of the alkaline secondary battery, wherein the power receiver coils are shaped like a sheet of an electric wire wound along a plane.

Contactless rechargeable secondary battery and contactless battery charger

Growing community of inventors

Tokyo, Japan

Katsuki Tsuchiya