Tomy Company, Ltd.

Dipsol Chemicals Co., Ltd.

Kimitaka Watanabe

Manabu Inoue

Yosuke Yoneda

Hiroyuki Yamanaka

Kazuhiro Watanabe

Yoshio Suimon

Ryo Nakajima

Toshiki Inomata

Keita Ishizu

Motoi Nakatani

Go Nagata

A trivalent-chromium chemical conversion coating from which substantially no hexavalent chromium is released. The trivalent-chromium chemical conversion coating is one formed on the surface of a zinc or zinc-alloy deposit. In a brine spray test, the chemical conversion coating has unsusceptibility to corrosion (time required for white-rust formation) of 96 hours or longer. The chemical conversion coating has a hexavalent-chromium concentration less than 0.01 &#x3bc;g/cmin terms of metal atom amount. The amount of hexavalent chromium released after 30-day standing in a thermo-hygrostatic chamber at a temperature of 80&#xb0; C. and a humidity of 95% (amount of hexavalent chromium released when the coating is immersed in 100&#xb0; C. water for 10 minutes) is smaller than 0.05 &#x3bc;g/cm.

Corrosion-resistant trivalent-chromium chemical conversion coating and solution for trivalent-chromium chemical treatment

[Problem to be Solved] To provide an electrically-operated toy that uses an electric double-layer capacitor as a main power source and yet can secure an operation duration time per charge that is long enough to fully satisfy the users who are infants, younger school children, etc. [Solution] Provided is an electrically-operated toy that includes: an electric double-layer capacitor acting as a main power source; a movable mechanism for realizing toy functions; an electric motive power source for operating the movable mechanism; and a chopper-type step-up DC/DC converter that boosts a voltage received from the electric double-layer capacitor and supplies the voltage as a power source to at least the electric motive power source.

Electrically-operated toy

It is an object of the present invention to provide a processing solution used for forming a hexavalent chromium free, black conversion film, which is applied onto the surface of zinc or zinc alloy plating layers, and which has corrosion resistance identical to or higher than that achieved by the conventional hexavalent chromium-containing conversion film.

Processing solution for forming hexavalent chromium free, black conversion film on zinc or zinc alloy plating layers, and method for forming hexavalent chromium free, black conversion film on zinc or zinc alloy plating layers

A robot toy including: a first block including a servo; a second block connected to the first block by fitting an output shaft of the servo into a boss; and a servo control section. The servo is provided with, a first disk to rotate with the output shaft; a second disk provided facing the first rotating disk to rotate relatively to the first rotating disk in a plane parallel to the first rotating disk according to user operation; and an angle detection section to detect a relative angle between predetermined reference lines on the first and second disks. The servo control section includes a center position control section to rotate the output shaft and the first rotating disk, and to control the servo while a position of the servo, when the relative angle is 0, is at a center position.

Robot toy and assembling method thereof

A robot toy including one block to which a servo is installed, another block joined to the one block by fitting an output shaft of the servo to a shaft hole, and a shaft hole diameter adjustment member to change a diameter of the shaft hole so as to be in a condition where the shaft hole is loosely fitted to the output shaft or a condition where the shaft hole is tightly fitted to the output shaft.

Robot toy

An electroluminescent light emitting system, having an electroluminescent light-emitting layer containing electroluminescent light-emitting elements, one surface side of which receives an AC electric field forming material thereon; an electrode section including a first electrode layer with a predetermined first pattern and a second electrode layer with a predetermined second pattern, which are disposed relatively close to but electrically spaced from each other on another surface side of the electroluminescent light emitting layer; and a waterproof resin layer provided between at least one of the first electrode layer and the second electrode layer electrode section, and the electroluminescent light-emitting layer. The AC electric field forming material on the one surface side enables an AC electric field to be generated in the electroluminescent light-emitting layer with an AC voltage applied between the first electrode layer and the second electrode layer.

Electroluminescence light emitting display system

An EL emitting sheet realizing various changes of light emission. The EL emitting sheet includes: a light-emitting layer containing electroluminescence light-emitting elements therein; and an electrode section having a plurality of electrode pairs which is disposed with a predetermined arrangement, wherein each of the electrode pairs includes first and second electrodes which are electrically separated from each other with a spacing region and disposed in one surface side of the light-emitting layer with a predetermined arrangement.

Growing community of inventors

Tokyo, Japan

Kimitaka Watanabe