Matsushita Electric Industrial Co., Ltd.

Sanyo Chemical Industries, Ltd.

Yoichi Aoshima

Hideki Shimamoto

Yasuhiro Kobatake

Hiroyuki Maeshima

Hisao Nagara

Mamoru Ito

Yoji Masuda

Yoshio Miyazaki

Yoshiteru Kuwae

Tsuyoshi Tsunetsugu

Kazushi Shiono

A method of deriving an equivalent circuit model for a passive component includes a first step of providing a given frequency characteristic of a capacitor, a second step of forming one of an RC circuit, an RL circuit, and an RCL circuit using frequency-independent resistances (R), capacitances (C) and/or inductances (L), as the equivalent circuit model representing a circuit capable of performing a simulation in a time domain, a third step of composing an evaluation function for evaluating accuracy of the equivalent circuit model formed in the second step, and a fourth step of determining values of the circuit components by minimizing the evaluation function composed in the third step. The method with a simulator adapted for implementing this method and a computer-readable storage medium containing a recorded program, derives the equivalent circuit model for a capacitor. The model is capable of performing a simulation in the time domain using a common procedure not dependent upon types of passive components.

Method for making equivalent circuit model of passive element, simulator, and storage medium

Non-aqueous liquid electrolytes for electrolytic capacitors which comprise diazobicyclealkenes and/or salts thereof as a solute. The electrolytes are effective in improving low temperature and high temperature characteristics when applied as electrolytic capacitors. The capacitors using the electrolytes are also described.

Non-aqueous liquid electrolyte for electrolytic capacitors and

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Osaka, Japan

Yoichi Aoshima