Kabushiki Kaisha Toshiba

Smk Corporation

Mitsubishi Denki Kabushiki Kaisha

Tokyo Shibaura Denki Kabushiki Kaisha

Dowa Mining Co., Ltd.

Tokyo Shibaura Electric Co., Ltd.

Daiichi Sankyo Company, Limited

Kenji Murata

Yuichi Sato

Jun Watanabe

Takeshi Matsuda

Takayuki Baba

Tamotsu Shirogami

Masaji Komuro

Kenji Hatano

Takashi Ogawa

Kazuyuki Matsumoto

Kazushi Sano

Kazuhisa Saito

Koji Goto

Kenji Yoshikawa

Atsuo Sonai

Noriyasu Haginoya

Seiichi Hisano

Yoshiko Kagoshima

Satoshi Aizawa

Mitsushi Ueno

Masashi Numata

Taeko Shinozaki

Tsutomu Takamura

Ryutaro Kanada

Mayumi Kitagawa

Hitoshi Nirasawa

Akiko Kurimoto

Machiko Shiroishi

Hirokazu Niki

Eri Tokumaru

Tomoaki Hamada

Takanori Kawachi

Tadanori Maoka

Atuo Sounai

Earphone

Pair of earphones

It is constructed so as to detect a joint movement position of a robot arm by a position detector and a joint movement speed is calculated from change amounts of the joint movement position and elapsed time and is compared with an allowable movement speed and unlocking and locking of a brake are controlled so that the joint movement speed of an arm at the time of brake unlocking becomes within a constant value even when a shape, an attitude and a load condition of the robot arm vary. Therefore, movement work of the arm by the brake unlocking can be performed alone and a robot with high safety can be obtained.

Robot

A reception data expander includes: an adaptive differential pulse code modulation (ADPCM) decoder activated when error detection information attains a reception data error nondetected state for expanding an input ADPCM code into a PCM (pulse code modulation) code, and inhibited of its decoding process operation when the error detection information indicates an error detected state; a memory circuit set to a write state when the error detection information attains an error nondetected state for sequentially storing generated ADPCM code, and outputting a stored PCM code when the error detection information is rendered to an error detected state; and a reconstructed output switch for selecting and providing to the next PCM decoder a PCM code when the error detection information attains an error nondetected state, and a PCM code read out from the memory circuit when the error detection information attains an error detected state. Noise generation arising from discontinuity of an ADPCM code at the time of reception data generation can be suppressed effectively without increasing the device complexity and power consumption.

Reception data expander having noise reduced in generation of reception

A fuel cell having a plurality of stacked single cells in each of which an electrolyte layer is held between an anode and a cathode and between which a separator is interposed, wherein the electrolyte layer includes a sheet for holding the electrolyte containing, as the main component thereof, fine powder having a function of holding the electrolyte, and reinforcing ceramic fiber disposed in the sheet for holding the electrolyte to substantially run parallel to the surface of the sheet for holding the electrolyte.

Fuel cell having electrolyte layer held between anode and cathode

There is provided an accicular ferromagnetic metal powder with which one can produce magnetic media for high-density recording that are improved in storage stability and magnetic characteristics. The improved ferromagnetic metal powder essentially consists of iron and 50 atm % based on the amount of iron of cobalt and at least one of aluminum and yttrium or any other rare earth element and contains no more than 0.05 wt % of an element of Group Ia of the periodic table (Li, Na, K). The amount of aluminum is in the range of 0.1-30 atm %, the amount of yttrium or any other rare earth element is in the range of and 0.1-10 atm %, each being based on the total quantity of the metal elements present. In either of these cases, the residue of an element of Group IIa of the periodic table (Mg, Ca, Sr, Ba) is preferably 0.1 wt % or less.

Ferromagnetic metal powder

There is provided a metallic magnetic powder with which one can produce magnetic media for high-density recording that are improved in storage stability and magnetic characteristics. The improved ferromagnetic metal powder contains no more than 0.05 wt % of an element of Group Ia of the periodic table. The powder may optionally contain 0.1-30 atm % of aluminum and/or 0.1-10 atm % of Y or any other rare earth element based on the total quantity of the metal elements present. In either of these cases, the residue of an element of Group IIa of the periodic table is preferably 0.1 wt % or less.

A fuel cell proper is constructed by superposing a plurality of unit cells having a solid polymer electrolyte membrane held between an anode and a cathode. This fuel cell proper is cooled with a liquid having a boiling point closely approximating the working temperature of the fuel cell. Water and a liquid fuel as liquid raw materials are gasified with a liquid raw material gasifying mechanism. This liquid raw material gasifying mechanism uses, as at least part of the heat source for gasification of water, the waste heat from the reformer and the heat possessed by the reformed gas. The gasified water and liquid fuel are reformed by the reformer into a hydrogen rich gas. The gas thus produced is supplied to the anode in the fuel cell proper. The cathodes are supplied with air to effect a reaction for power generation.

Solid polymer electrolyte fuel cell apparatus

In a stacked structure for forming a molten carbonate fuel cell according to the present invention, a plurality of unit cells are stacked, and separator elements are respectively interposed between the adjacent unit cells. First and second internal manifolds extend in the stacking direction, at both sides of the stacked structure. Third internal manifold extends at the center of the structure, in the direction of stacking. First fuel gas passages, communicating with the first and third internal manifolds, are formed at the anode side of the separator element. Second fuel gas passages, communicating with the second and third internal manifolds, are formed at the anode side of the separator element. Thus, the fuel gas flows through the first internal manifold, the first fuel gas passages and the third internal manifold, and the fuel gas flows through the second internal manifold, the second fuel gas passages and the third internal manifold. As a result, the current density distribution and the temperature distribution are uniform.

Molten carbonate fuel cell

In a molten carbonate fuel cell wherein a cathode and an anode of porous material formed in contact with an electrolyte layer, each of the cathode and anode comprises a bilayered structure having a first porous layer located at the side of the electrolyte layer and a second porous layer at the side of an element for supplying a fuel (or oxidant) gas and consisting of a sintered layer of a fibrous material. Pores in at least a portion of the first porous layer, which is adjacent to the electrolyte layer, have a size allowing capillary action of a molten carbonate, and pores of the second porous layer have a size not allowing capillary action.

A fuel cell stack has a plurality of stacked unit cells, each consisting of a pair of gas diffusion electrodes with a matrix containing an electrolyte solution interposed between them, with an interconnector having a fuel gas passage on one surface and an oxidizing gas agent passage on the other surface interposed between each pair of adjacent unit cells. One out of every three to five interconnectors is a one-piece-molded product which has at least one cooling pipe embedded in it and which provides an excellent cooling effect. The fuel cell stack stably provides a high output voltage over a long period of operation time.

Fuel cell stack

Provided is a nickel-zinc storage battery prepared, preferably, by winding into a whirlpool a sheet-like zinc electrode, a sheet-like nickel electrode and a separator with the separator interposed between the zinc and nickel electrodes, said zinc electrode being obtained by bonding under pressure to a collector a mixture sheet consisting of zinc oxide, zinc, bismuth oxide, calcium hydroxide and fluoroplastic, said nickel electrode being obtained by bonding under pressure an oxide of nickel to a collector together with a conductive material, said separator being obtained by coating on an alkali-resisting nonwoven fabric a mixture of polyvinyl alcohol and at least either of one selected from the group consisting of boric acids and metal oxides having low solubility to alkali solution and drying the nonwoven fabric thus coated.

Nickel-zinc storage battery

Growing community of inventors

Tokyo, Japan

Kenji Murata