Bridgestone Corporation

Seiko Electronic Components Ltd.

Kinya Suzuki

Yoshitomo Masuda

Masao Ogawa

Tadashi Fuse

Takahiro Kawagoe

Hideharu Daifuku

Katsuhiko Arai

Tetsuro Amano

Shinichi Toyosawa

Yoshio Takizawa

Ryota Fujio

Takashi Kitamura

Hiroshi Kaneda

Toyoo Harada

Tadashi Nakajima

Tadaaki Miyazaki

Yuko Maeda

Shigeru Kijima

Isamu Shinoda

Hiroshi Harashima

An object, typically photoconductor drum is electrically charged by placing a contact charger member in abutment with the object to be charged and applying voltage between the contact charger member and the object. Charging is effected by properly controlling the capacitance of the contact charger member, the capacitance of the object, and the applied voltage. A sufficient charged potential is achieved through the application of a relatively low voltage, while preventing ozone generation.

Contact charging method and apparatus

There is provided a polyaniline having a thickness of 0.3 to 5 mm which is suitable for an electronic material, particularly for an electrode material in a cell. Also provided is a cell comprising a positive electrode, a negative electrode and an electrolyte in which the polyaniline having a thickness of 0.3 to 5 mm is employed in at least one of the positive and negative electrodes, the cell having a high energy density and good cell performance stable for a long period of time.

Polyanilines, process for the preparation thereof and cells using them

A lithium cell comprising a negative electrode containing lithium, a positive electrode, and an electrolyte disposed between the positive and negative electrodes is improved in internal resistance and shelf life when the negative electrode is surface treated with a composition containing from more than 1% to 5% by weight of water.

Lithium cells

A lithium cell comprising a negative electrode containing lithium, a positive electrode, and an electrolyte disposed between the positive and negative electrodes is improved in internal resistance and shelf life when the negative electrode is surface treated with water, lithium hydroxide, a PF.sub.6 ion-containing compound, or an AsF.sub.6 ion-containing compound.

An electric cell comprising a positive electrode, a negative electrode, and an electrolyte maintains excellent performance when the positive electrode is an electro-conductive polymer composite including a mesh stainless steel having a wire diameter of about 35-120 .mu.m and an electro-conductive polymer, typically polyaniline, integrally deposited onto the mesh by electrolytic polymerization. A container having the elements received therein is provided with a vent mechanism.

Electric cells

Growing community of inventors

Kodaira, Japan

Kinya Suzuki