Abstract: A fluid control valve comprises a diaphragm formed of a plurality of circular thin metal plates laminated one on another, the diaphragm being placed to be movable into or out of contact with a valve seat for closing and opening the valve. Each thin metal plate has a warp in a predetermined direction due to rolling anisotropy, and the thin metal plates are laminated with the directions of respective warps coinciding with one another in such a manner that variations in lift amount of the diaphragm are decreased.

Abstract: An object of the present invention is to provide a malfunction prevention manual valve capable of preventing a malfunction while ensuring operability in opening and closing the valve. To achieve the object, a malfunction prevention manual valve 1 of the present invention includes a lock mechanism including a parallel pin 75 held against rotation relative to a housing 71, and a sub-handle 73 provided in a handle 72 in such a manner as to be engageable with the parallel pin 75. The parallel pin 75 or the sub-handle 73 is urged by a lock spring 77, bringing the sub-handle in engagement with the parallel pin 75 to restrain rotation of the handle 72. A malfunction prevention manual valve 2 of another aspect includes a lock mechanism including a spring pin 175 held against rotation relative to a housing 171, a cam groove 172a formed in a handle 172 to receive a spring pin 175, and a sub-handle 173 provided integral with the handle 172 and urged by a spring 177.

Abstract: Disclosed is a portable telephone using a prepaid card. The prepaid card is provided very cheaply or at not charge to the user by automatically providing the user with not only the inherent function of making a telephone call but also information such as product information for PR, the details of a product, company information, and the address of the company's home page on the Internet for sales promotion of products. This portable telephone includes: a portable telephone body; a reading section provided for the body, for reading a remaining given value and various information images stored in a prepaid card; a display for displaying the read information; and means for outputting the read information by sound.

Abstract: A sales system for monitoring and/or rewarding marketing agents' efforts has a plurality of marketing agents, a marketing information medium to which at least one symbol for specifying a marketing agent is attached, a plurality of merchants, and a management control center which carries out data collection services. Whenever a purchase is conducted via one marketing agent, an electronic transaction subsystem is introduced to specify the marketing agent by the medium and to settle accounts between the merchant, the marketing agent, and/or the control center. The subsystem also allocates a series of symbols and/or a communication application in the purchaser's personal computer corresponding to a new route which leads the purchaser to the merchant's URL(s) whenever the purchaser accesses the system via the new route for the first time so that the system can specify the involved marketing agent even in case that the marketing agent's URL is skipped in the subsequent accesses by the purchaser.

Abstract: The present invention relates to a process for the production of hydrogen comprising treating in an anaerobic condition a substrate such as waste water including organic matter using sludge compost, whereby stable hydrogen generation at a higher efficiency for a longer period of time is attained together with the treatment of waste water.

Abstract: The present invention relates to a process for preparing hydrogen gas on an industrial scale by culturing the microorganism Clostridium beijerinckii Ferm BP-3592 or the anaerobic asporogenic bacterium strain Ferm BP-3593 in a medium containing glucose and/or a polysaccharide containing a glucose unit.

Abstract: The present invention relates to a process for preparing hydrogen gas on an industrial scale by culturing the microorganism Clostridium beijerinckii Ferm BP-3592 or the anaerobic asporogenic bacterium strain Ferm BP-3593 in a medium containing glucose and/or a polysaccharide containing a glucose unit.

Abstract: The viscosity of a solution of graft copolymer resulting from solution graft copolymerization is greatly reduced, and the handling characteristics are improved, by adding water and a suspending agent to the solution to form a suspension. E.g., to a reaction solution resulting from grafting of styrene and acrylonitrile on EPDM in solution, there is added 20 parts water and 0.1 part polyvinyl alcohol, and the mixture is agitated to produce a low-viscosity suspension.

Abstract: A binary or ternary graft-copolymer excellent in both tensile strength and impact resistance is obtained by the process for producing a binary or ternary graft-copolymer consisting essentially of an ethylene-propylene rubber and an aromatic vinyl compound or of an ethylene-propylene rubber, an aromatic vinyl compound, and a vinyl cyanide compound, characterized by subjecting these materials to solution polymerization in a mixed solvent comprising an aliphatic hydrocarbon solvent capable of dissolving the ethylene-propylene rubber and a polar solvent capable of dissolving a poly-(aromatic vinyl compound) or a copolymer of the aromatic vinyl compound and the vinyl cyanide compound.