Seiko Epson Corporation

Bridgestone Corporation

Masanori Takemura

Toshio Kumagai

Hitoshi Matsumoto

Atsushi Kobayashi

Akihiko Shiho

Hiroshi Fukumoto

Kazuhiko Hara

Shunichi Iijima

Hitotoshi Kimura

Masahiro Kanai

Yuichi Seki

Tadashi Utsunomiya

Hisanori Kawakami

Kazuyuki Saito

Youkou Saito

Akihiko Kitazawa

Yasushi Soya

Youkou Bridgestone Corporation Saito

The present invention provides an ink jet printer having storage for storing ink, a recording head including a nozzle for ejecting ink, and a passage between the storage and the recording head for conducting the ink. At least one of these components comprising an ink-contacting member that comprises an antioxidant of the following formula (1) of a concentration of 100 ppm or less: Further, an ink jet recording method using the ink jet printer causes such printer to eject droplets of an ink composition and attach the droplets to a recording medium.

Ink jet printer, ink jet recording method, and recorded matter

The present invention provides an ink jet printer having an ink-contacting member which is in contact with an ink until the ink is injected from a print head and which contains an antioxidant, wherein the ink-contacting member has a concentration of a compound represented by the following formula (1) of 100 ppm or less: Further, an ink jet recording method using the ink jet printer and recorded matter recorded by the ink jet recording method are also disclosed. According to the invention, there is provided an ink jet printer using an ink-contacting member which inhibits the formation of a crystalline molecular complex.

A liquid feed tube for feeding a liquid from a liquid tank disposed on a liquid jetting device body side to a jetting head mounted on a reciprocating carriage, including: a long elastic member and a film member connected in an airtight state to the elastic member along a longitudinal direction of the elastic member; and a space part formed by the elastic member and the film member and used as a liquid feed passage, wherein the elastic member is made of a specific resin composition. Thus, the bending rigidity of the liquid feed tube can be lowered, and the resistance to moisture permeability and the gas barrier property thereof can be realized at low cost.

Liquid feed tube for liquid jetting device and liquid jetting device

In a liquid supplying member, for supplying liquid from a liquid container to a liquid ejection head which are provided in a liquid ejection apparatus, a plurality of elastic members, each of which is elongated in a first direction so as to have a first face and a second face, are arrayed in a second direction perpendicular to the first direction. A first film member is joined to the first face of each of the elastic members. A second film member is joined to the second face of each of the elastic members, such that a passage, through which the liquid is supplied from the liquid container to the liquid ejection head, extending in the first direction is hermetically defined between the adjacent elastic members by inner faces of the first film member and the second film member.

Liquid supplying member, method of manufacturing the same, and liquid ejection apparatus incorporating the same

In a liquid supplying member, for supplying liquid from a liquid container to a liquid ejection head which are provided in a liquid ejection apparatus, a plurality of elastic members, each of which is elongated in a first direction so as to have a first face and a second face, are arrayed in a second direction perpendicular to the first direction. A first film member is joined to the first face of each of the elastic members. A second film member is joined to the second face of each of the elastic members, such that a passage, through which the liquid is supplied from the liquid container to the liquid ejection heads extending in the first direction is hermetically defined between the adjacent elastic members by inner faces of the first film member and the second film member.

An illumination device includes a light guide which receives light from a light source at a light-receiving face and emits the light from a light-emitting face . A face opposite the light-receiving face of the light guide is formed as an inclined plane. The light which has reached the inclined plane reflects at an angle off the inclined plane . Therefore, the frequency in diffusion of the light increases. As a result, the luminance of the light emitted from the light-emitting face is improved. The luminance of a planar light can be made uniform by varying the shapes of diffusion patterns disposed on a diffusion sheet according to the distance from the inclined plane

Illumination device and liquid crystal apparatus using the same

An ink cartridge for an ink-jet recording apparatus including an ink supply opening having a packing member capable of closely contacting with the outer circumference of an ink supply needle, the packing member is made of a thermoplastic elastomer containing 25% or less by weight of a polyethylene oil.

Ink cartridge for ink-jet recording apparatus, and ink-jet recording apparatus

A switch substrate for a switching device that includes an electrical contact brush, the substrate formed with alternating conductive and insulating portions on its surface and having a groove formed between the conductive and insulating portions to eliminate insulating abrasion powder from the surface of the contact brush. The top of the conducting portions is higher than the bottom of the groove but can be above or below the surface of the insulating portions. To form such a substrate, a conductive layer having projections is formed and is engaged with a mold so that the projections are compressed. After the substrate is removed from the mold, the compressed projections extend to their actual height.

Growing community of inventors

Nagano, Japan

Masanori Takemura