Honda Giken Kogyo Kabushiki Kaisha

Naoya Watanabe

Minoru Noguchi

Takashi Iwasa

Tomokazu Shohoji

Toshio Tokune

Masahiro Ota

Sinji Okabe

Kazuo Ando

Tatsuya Hohda

Yoshihiko Wajima

A capacitor has a bottomed outer casing housing a capacitor element therein, a lid closing the bottomed outer casing and having a pair of insertion holes defined therein, and a pair of electrode terminals mounted on the lid and connected to the extension leads. The capacitor element includes a plurality of current collectors with respective extension leads extending therefrom. Each of the electrode terminals has an insert inserted in one of the insertion holes with an insulator interposed between the insert and the lid, a flange contiguous to an end of the insert and held against a surface of the lid through the insulator, a joint projecting from the flange and connected to the extension lead, and a staked member contiguous to an opposite end of the insert and crimped over an opposite surface of the lid with the insulator interposed between the staked member and the lid. The flange has a plurality of dimples defined in a surface thereof facing the surface of the lid, the surface of the lid having a plurality of dimples defined therein. The insulator has portions pressed into the dimples of the flange and the lid by the flange which is pressed against the surface of the lid by the staked member.

Capacitor

An electric field equal to at least a coercive electric field is applied to a field-excited phase transition material thereby to bring about a phase transition from an antiferroelectric phase to a ferroelectric phase for thereby causing the field-excited phase transition material to produce a distortion. Then, the electric field applied to the field-excited phase transition material is eliminated while the distortion remains in the field-excited phase transition material. Thereafter, a shock is applied to the field-excited phase transition material to forcibly remove residual distortion from the field-excited phase transition material for thereby causing the field-excited phase transition material to produce an electric signal representative of the shock. The field-excited phase transition material may comprise an electrostrictive material composed of lead, barium, niobium, zirconium, tin, titanium, and oxygen, or lead, niobium, zirconium, tin, titanium, and oxygen, or a piezoelectric/electrostrictive material.

Method of detecting shock and shock sensor

An Al-based intermetallic compound in which a eutectic crystal type Al-CuMn intermetallic compound dispersion phase is dispersed in an Al-Cu intermetallic compound matrix phase. The content of Mn as a eutectic crystal-forming element contained in the dispersion phase is set in a range of from 5% by weight (inclusive) to 30% by weight (inclusive). In the course of solidification of the Al-Cu-Mn intermetallic compound, an infinite number of dispersion phases are first crystallized, and the matrix phase is then crystallized. This ensures that the matrix phase is formed into a fine crystal structure due to hindrance of the growth thereof by the dispersion phase, leading to increases in hardness and toughness of the resulting Al-based intermetallic compound. In another embodiment, the Al-based intermetallic compound contains peritectic type Al-based intermetallic dispersion phase, such as formed by Ta, dispersed in the intermetallic compound matrix phase.

Aluminum-based intermetallic compound with high toughness and high wear

A structural member made of titanium or titanium alloy has a metal structure at its surface layer portion formed of a plurality of kinds of .beta.-phases of different characteristics which are present in combination.

Growing community of inventors

Saitama, Japan

Naoya Watanabe