Sony Corporation

Fujifilm Corporation

Kazuya Kojima

Yukio Noda

Nobuhiro Fujiwara

Yasuo Yukita

Takeo Yamada

Tadashi Ueda

Provided is a method of manufacturing a member made by stainless steel, which is capable of preventing a burr from being folded from the root and a sharp edge from being chipped. A method of manufacturing a member made by stainless steel, in which a member having a sharp edge is manufactured by grinding stainless steel, includes grinding a face which forms the sharp edge of the stainless steel in the longitudinal direction of the sharp edge, grinding both side faces, which come into contact with each other in the longitudinal direction of the sharp edge, from the non-tip-end face of the sharp edge toward a tip-end direction of the sharp edge while grinding both the side faces in the longitudinal direction of the sharp edge, and polishing the face which forms the sharp edge by moving a polishing unit in the longitudinal direction of the sharp edge.

Method of manufacturing member made by stainless steel and method of manufacturing coating film

A coating apparatus includes a die coater that supplies a coating liquid to a web. The die coater includes a die main body, a manifold, a slot, a lip face, a mount, a decompression chamber, and a container. The container includes a guide plate guiding the coating liquid or a solvent ejected from the slot of the die coater without bringing the coating liquid or solvent into contact with the mount and the decompression chamber in a non-steady state, in which the coating liquid is not supplied from the die coater to the web. The container collects the coating liquid or the solvent guided by the guide plate. The coating apparatus also includes a liquid discharge tube that is connected to the container and discharges the coating liquid or solvent to an outside of the decompression chamber.

Coating apparatus and coating film manufacturing method

Internal shorting of large capacity multi-layer type nonaqueous electrolyte secondary cells is minimized by inclusion of heat resistant porous film layers adjacent thermally fusible resin microporous films disposed between negative electrodes and positive electrodes in an electrode assembly and between adjacent electrode assemblies stacked together to provide an electrode stack. The heat resistant porous film layers may be organic or inorganic temperature resistant sheet materials exhibiting heat resistance to temperatures of at least about 600.degree. C.

Multi-layer type nonaqueous electrolyte secondary cell

A lithium ion secondary battery according to the present invention includes a positive electrode, a negative electrode, a separator, and a heat-resistant and heat-insulating film having pores. The heat-resistant and heat-insulating film is formed on at least one of surfaces opposed to each other of the positive and negative electrodes. The positive electrode and the negative electrodes are laminated through the separator. The heat-resistant and heat-insulating film contains metal oxide, metal carbonate or metal nitride. The heat-resistant and heat-insulating film is formed by spraying powders of metal oxide, metal carbonate or metal nitride. The spraying is plasma spraying. A surface where the positive electrode and the negative electrode are not opposed to each other is provided. On at least one of surfaces forming the interface, the heat-resistant and heat-insulating film is formed by spraying powders of metal oxide, metal nitride or the like.

Growing community of inventors

Kanagawa, Japan

Kazuya Kojima