A compound useful for a proton conductor which is obtained through sulfonation followed by sol-gel reaction, or through sol-gel reaction followed by sulfonation of a compound of the following formula: wherein A is meaogen-containing organic group; R is H, ...

A portable printer contains a print controller that acquires first ID of a first character printed in advance on an instant film from a wireless tag embedded in the instant film; acquires second ID of a second character contained in image data to be printe...

A flash unit (27) of a lens-fitted photo film unit has a positive contact member (48) and a negative contact member (49) for holding a battery between them. A main body portion (29) has a couple of supporting projections (35,36) formed integrally therewith...

Provided are a proton-exchange membrane of which the ionic conductivity is high and the methanol crossover is low, and a fuel cell of high power that comprises the proton-exchange membrane. The proton-exchange membrane has a structure of mesogen-containing...

An organic-inorganic hybrid material produced by crosslinking a precursor that is an organosilicon compound having a mesogen group is disclosed. The organic-inorganic hybrid material is favorable for electrolytic membranes for fuel cells.

An electrolyte containing a 6-membered nitrogen-containing aromatic ring compound having a specific structure represented by formula (I') and a photo-electrochemical cell having the electrolyte. The electrolyte hardly volatilizes and performs an excellent ...

The shooting equipment communicating system includes portable shooting equipment and mobile communications equipment which are moved together and communicate with each other. The mobile communications equipment includes a database section for storing map d...

An electrolytic composition having an electrolyte salt represented by the following general formula (I): (Q 1 ) n1 · (X) n2 (I), wherein Q 1 represents a cation, X represents an anion having a silicon atom, and each of n 1 and n 2 represents an integer of...

An electrolyte composition that contains a molten salt having a specific structure, a silicon polymer, and a salt of a metal ion of Group 1 or 2 of the Periodic Table; and a non-aqueous electrolyte secondary cell containing the electrolyte composition. Als...