Matsushita Electric Industrial Co., Ltd.

Shinichi Shimakawa

Shinji Hamada

Munehisa Ikoma

Hiromu Matsuda

Manabu Kakino

Shigeo Hayashi

Takayuki Negami

Yasuhiro Hashimoto

Masaru Nagaike

Takao Matsunami

Shinichiro Inukai

Takuya Satoh

Noriyuki Fujiwara

A solar cell with good characteristics and high reliability is provided that includes a semiconductor comprising at least one element from each of groups Ib, IIIb, and VIb. A method of manufacturing the same also is provided. The solar cell includes a conductive base, a first insulating layer formed on one principal plane of the base, a second insulating layer formed on a second principal plane of the base, and a light-absorption layer disposed above the first insulating layer. The light-absorption layer is formed of a semiconductor comprising at least one element from each of groups Ib, IIIb, and VIb.

Solar cell and method of manufacturing the same

The present invention has an object to provide a method for generating vibration and a vibration generating apparatus for allowing a single unit to provide a call signal by way of sound and body-sensible vibration. According to the method for generating vibration of the invention, first and second vibration systems having different resonance frequencies from each other are magnetically coupled to each other and a state of energy externally supplied to the systems is selected thereby causing the first vibration system to vibrate relative to the second vibration system for generating a body-sensible vibration, for example. By changing the state of the energy, the second vibration system is caused to vibrate relative to the first vibration system for generating sound.

Vibration generating apparatus

A casing of sealed alkaline storage battery to be stacked in plural number in one direction, each provided with a safety vent; each casing is made of a polymer alloy which mainly comprises polyphenylene ether, polystyrene and an elastomer; at least one outersurface of the casing has a plurality of vertical protrusion ribs thereby to form vertical ventilation spaces through which a cooling medium passes; the vertical ribs formed on an outer surface of the casing have a protrusion height of 1 to 2 mm, the interval between ribs of 7 to 15 mm, rib width of 3 to 10 mm; thickness of inter-rib portion of casing are 1 to 3 mm, and those at the parts of short side walls 2 to 4 mm.

Sealed alkaline storage battery

In the module battery, by disposing end plates including a flat plate portion and a rectangular frame portion at each end of a cell group and by binding the cell group by means of binding members and metal studs, the increase of the internal pressure during the charging/discharging cycles and the dimensional change of the module battery due to the expansion of the cell group can be suppressed, while the weight and volume increase caused by the binding members is minimized.

Module battery of sealed alkaline storage battery

Growing community of inventors

Moriguchi, Japan

Shinichi Shimakawa