Sumitomo Special Metals Co., Ltd.

Neomax Co., Ltd.

Nissan Motor Company Limited

Sumitomo Electric Industries, Limited

Mita Industrial Co., Ltd.

Senju Pharmaceutical Co., Ltd.

Seed Company Limited

Sony Corporation

Ricoh Company, Ltd.

Mitsubishi Electric Corporation

Showa Denko K.k.

Akira Nakamura

Motoaki Tamaya

Shuhei Okumura

Chise Nanba

Keiichi Fukuda

Seiichi Kohara

Kazutaka Ikeda

Shinichi Oe

Masamitsu Okamura

Makiko Yamamoto

Ryoji Ikegaya

Keiichi Yano

Yasuyuki Fukunaga

Toshiyuki Hiroi

Yuji Kaneko

Junichi Aizawa

Koji Funaoka

Shigenobu Miyake

Hideki Kita

Tsutomu Fukushima

Toshinobu Katafuchi

Hiromichi Uchiyama

Yoko Arai

Atsuo Tanaka

Daisuke Kubo

Manabu Kawakami

Tadahiro Iwasaki

Hajime Yasuda

Yoshiro Takano

Shouichi Matsugami

Daisuke Harimoto

Susumu Watabe

Yoshio Maeda

Eiichi Yaguchi

Shuhei Yamamoto

The object of the present invention is to provide an annular device superior to a conventional annular device in the stability over an eyeball when being worn, which overcomes problems caused by wearing a conventional annular device. The above object is attained by preparing an annular device to be worn over the surface of the sclera, the annular device including an opening exposing the cornea and one or a plurality of approximately encircling grooves on an intermediate part between an inner rim part and an outer rim part. The annular device has a maximum thickness preferably in the intermediate part.

Annular device

A method for producing rare earth sintered magnets includes the steps of pressing and compacting an alloy powder for the rare earth sintered magnets, thereby preparing a plurality of green compacts, arranging the green compacts on a receiving plane in a direction in which a projection area of each of the green compacts onto the receiving plane is not maximized, and heating the green compacts, thereby sintering the green compacts and obtaining a plurality of sintered bodies.

Method for producing rare earth sintered magnets

A method and apparatus for manufacturing a rare earth magnet is disclosed. In a first step, a compact is produced by compacting rare earth alloy powder in a predetermined space in an orienting magnetic field. Next, a demagnetizing process is performed for the compact, and the compact is ejected from the predetermined space. Then, a additional demagnetizing process is performed for magnetic powder adhering to a surface of the compact by applying an magnetic field to the compact after the compact is ejected.

Method of manufacturing rare earth magnet and powder compacting apparatus

In a rare earth metal-based alloy powder supplying apparatus, a rare earth metal-based alloy powder is supplied from a feeder box having an opening in its bottom surface into a cavity by moving the feeder box to above the cavity. The apparatus includes a bar-shaped member which is moved horizontally and in parallel in the bottom of the feeder box. A plurality of the bar-shaped members may be provided horizontally at distances. The apparatus further includes a powder replenishing device for sequentially replenishing the alloy powder into the feeder box in an amount corresponding to a decrement in amount resulting from the supplying of the alloy powder from the feeder box to the cavity, an inert gas supply device for filling an inert gas into said powder feeder box, and a plate member made of a fluorine-contained resin and mounted on the bottom surface of the feeder box. Thus, an alloy powder extremely poor in fluidity and in agitatability and liable to be inflamed can be supplied into the cavity with an extremely uniform filled density without production of agglomerates and bridges and with no fear of inflammation.

Process and apparatus for supplying rare earth metal-based alloy powder

A powder pressing apparatus comprises a powder feeding apparatus. The powder feeding apparatus includes a container having a bottom portion provided with a powder holding portion formed with openings, and an impactor. The impactor is hit against the container to give an impulsive force, thereby feeding the powder contained in the container into the cavity formed in a die via the openings. The powder fed in the cavity is pressed, and the obtained compact is sintered into a sintered magnet. The powder feeding apparatus may include a feeder box containing the powder, and the feeder box may be provided therein with a rod member, and an opening of the feeder box may be provided with a linear member. In this case, the powder is fed into the cavity while moving the rod member in the horizontal direction in the feeder box, when the feeder box is above the cavity.

Powder feeding apparatus, pressing apparatus using the same, powder feeding method and sintered magnet manufacturing method

Method for manufacturing rare earth magnet and powder compacting apparatus

A cleaning device for a SCOROTRON type electrostatic charger to be used in an image forming apparatus such as a copying machine wherein both discharge wire and grid wire are cleaned by reciprocating a first cleaning member which is contactable with the discharge wire of the electrostatic charger and a second cleaning member contactable with the grid wire. Also, the respective cleaning members are alternately brought into contact with the respective discharge and grid wires in the forward stroke and return stroke of the first and second cleaning members.

Cleaning device for an electrostatic charger

A bus bar mount on which a current collecting equipment rides comprises an electrically insulating elongate body having a longitudinally extending groove and a longitudinally extending lid hinged to the body proper, a current carrying naked cable set in the groove, and latching means for providing latching engagement of the lid with the body proper to sealingly close the groove when the lid is pressed against the body proper. The current collecting equipment comprises a current collecting shoe, a rod connected to a body of the equipment to forcedly open the lid allowing the shoe to be brought into sliding contact with the naked cable when moved in a direction along the bus bar mount, and a press-roller unit connected to the body of the equipment at the position opposite to the rod with respect to the shoe to press the open lid against the body proper of the mount for providing the latching engagement of the lid with the body proper when moved in the one direction.

Current transmitting system for trackway type motor vehicle

Growing community of inventors

Osaka, Japan

Akira Nakamura