Matsushita Electric Industrial Co., Ltd.

Japanese National Railways

Toyo Boseki Kabushiki Kaisha

Yoshihiro Murata

Yasuyuki Yoshihara

Takashi Hattori

Akira Inanobe

Haruhisa Furuishi

Hidenori Suzaki

Keiji Shimizu

Hiroshi Yoshida

Misao Sumoto

Hiroshi Imanaka

Kuninori Azuma

Kinji Terawaki

Hiroshi Izumi

Toru Sugiyama

Kainen Watanabe

Hiroto Yasuhara

A storage battery including an electrode and an electrolyte material, in which the electrode has a grid with a mesh area of about 50 mm or less and an active material provided on the grid. Accordingly, it is made possible to prevent a decrease in the negative electrode's conductivity due to a contraction of the negative electrode active material that takes place extensively when a cycle of charge and discharge is repeated particularly at high temperatures with a resulting remarkable improvement in cycle life characteristics of a lead-acid storage battery.

Storage battery

A lead-acid storage battery includes a positive electrode, a negative electrode and an electrolyte material. The foregoing negative electrode has a first grid with a first grid geometry and a first active material provided on the above first grid. The foregoing positive electrode has a second grid with a second grid geometry and a second active material provided on the above second grid. A first mesh area of the foregoing first grid is smaller than a second mesh area of the foregoing second grid, thereby achieving an excellent high rate discharge cycle life.

An improved insulating plate for an insulated rail joint includes a main plate portion made of a thermo-plastic resin, thick portions formed on the main plate portion at its side face contacting a joint plate, and planar heater elements embedded in the thick portions.

Insulating plate for rail insulated joint

A pad comprising at least one sheet of material having a thermoplastic resinous composition and a heater actuable to heat and soften the sheet, the pad being for use in alignment of machine equipment, rails, beams, girders, or other constructional elements relative to a horizontal base, vertical or inclined line, or to other constructional elements. In use the pad is placed between the equipment, rail or the like and a support or abutment therefor, and the heater is actuated so as to soften the pad just sufficiently that the weight of object or a force thereon reduces the thickness of the pad an amount equal to the desired movement of the object necessary to achieve the desired alignment.

Electrically heated alignment pad

An electrothermally deformable levelling pad utilizable in padding, levelling or aligning girders, rails or any other constructional or structural elements. The levelling pad comprises at least one thermoplastic plate member and an electric heater for heating the thermoplastic plate member to soften or melt to cause the overall thickness of the pad to reduce to a value sufficient to bring an article or machine to a predetermined level. The plate member is made of a thermoplastic random-copolymerized polyester which comprises an acid component and a glycol component.

Electrothermally deformable levelling pad

Growing community of inventors

Shizuoka, Japan

Yoshihiro Murata