Oura Kousoku Co., Ltd.

Mitsubishi Chemical Corporation

Yasushi Oura

Kanako Takiguchi

Masami Iwahori

A nonaqueous electrolyte solution includes a lithium salt and a nonaqueous solvent that dissolves the lithium salt. The nonaqueous electrolyte solution contains from at least 0.01 ppm to not more than 100 ppm of a compound represented by the following general formula (1):R&#x2014;CROR&#x2014;CROR&#x2003;&#x2003;(1)(in formula (1), Rand Rrepresent an organic group having 1 to 10 carbon atoms and optionally having a substituent; Rrepresents hydrogen or an organic group having 1 to 10 carbon atoms and optionally having a substituent; and Rto Rmay each represent the same group or may each represent different groups).

Nonaqueous electrolyte solution and nonaqueous electrolyte battery

Fork

A length measuring instrument capable of measuring, displaying and recording the length around a part being measured by applying a measuring belt tightly to that part and operating the instrument by single hand. A rotary shaft disposed in a housing is provided with a spiral spring, the measuring belt, and an optical modulating section having a part for regulating the quantity of transmitted light. The belt is drawn out and applied tightly to the circumference of the part being measured. The rotary shaft is rotated forward when the belt is drawn out and rotated reversely by the recovering force of the spring to pull in the belt automatically thus, stretching and tensioning the belt. The light is converted into an optical modulation signal L depending on the rotation of optical modulating section and that signal is converted temporarily into a photoelectric conversion signal before being converted into an electric signal. The pulse generation pattern is judged at the forward/reverse rotation judging section of 2CPU, addition and subtraction counting is performed at the pulse counting section in response to the judgment results, and the value of a length corresponding to the final count is read out from a storage device and displayed at a display section.

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Tokyo, Japan

Yasushi Oura