Enplas Corporation

Harmonic Drive Systems Inc.

Other

Fukuoka University

Nagano Japan Radio Co., Ltd.

Zuken, Inc.

Seiko Epson Corporation

Fuji Corporation

Fuji Machine Mfg. Co., Ltd.

Maruzen Petrochemical Company, Limited

Yasuhiro Koike

Hiroshi Yamazaki

Tsuyoshi Ishikawa

Shingo Ohkawa

Norio Shirokoshi

Syuhei Kobayashi

Daisuke Orii

Hiroshi Matsuoka

Kazuhiro Kusunoki

Hiroki Hanaoka

Hajime Tomokage

Hidemichi Kawase

Hirohiko Matsuzawa

Yoshihide Kiyosawa

Koichi Toba

Toshifumi Takemori

Satoshi Kiyono

Shigeharu Yamamoto

Morio Sato

Kazuhiko Mizuno

Sakae Kamiyama

Akira Matsumoto

Yoshihisa Katoh

Yutaka Uehara

Yoko Furuyama

Yoji Suzuki

Junichi Ohkuma

An outer-ring lubrication groove pattern formed in an outer-race raceway surface and an inner-race lubrication groove pattern formed in an inner-race raceway surface of a wave generator bearing of a strain wave gearing device are patterns in which linear lubrication grooves having very small widths and depths of several micrometers or less are arranged at fine pitches of several micrometers or less. The inner-race lubrication groove pattern includes a second groove pattern formed in long-axis-side inner-race raceway surface portions to hold the lubricant, and a first groove pattern formed in short-axis-side inner-race raceway surface portions to hold the lubricant and guide the lubricant to the second groove pattern. This configuration improves the contact state between balls and the inner-race and outer-race raceway surfaces of the wave generator bearing, thus reducing the coefficient of friction therebetween.

Wave generator of strain wave gearing device

In a strain wave gearing device, fine first and second lubricant-holding grooves for holding lubricant are formed at fine pitches in an outer-race external peripheral surface of a wave generator bearing and an outer-race-contacting internal peripheral surface portion of an externally toothed gear in contact therewith. Fine lubricant-guiding grooves for guiding the lubricant to the outer-race-contacting internal peripheral surface portion are formed at fine pitches in a second internal peripheral surface portion, which adjoins the outer-race-contacting internal peripheral surface portion, of an internal peripheral surface of the externally toothed gear. This configuration improves the contact state between the outer-race-contacting internal peripheral surface portion of the externally toothed gear and the outer-race external peripheral surface, thus suppressing fretting wear occurring in these surfaces.

Strain wave gearing device

In a wave generator for a strain wave gearing, a plug outer peripheral surface of a rigid wave plug has a non-circular profile and is fixed to an inner-race inner peripheral surface of a wave bearing by press-fitting and using an adhesive. The plug outer peripheral surface is a groove formation surface in which microgrooves are formed as adhesive-retaining grooves that can retain the adhesive. When the wave plug is press-fitted into the wave bearing, the amount of adhesive that is scraped out from therebetween is reduced and the bonding strength therebetween can be increased while also preventing unevenness of the bonding strength.

Wave generator for strain wave gearing

Provided is a manufacturing apparatus that manufactures a high-quality manufacturing object by using component information per unit of individual electronic component or per unit of package in a plurality of electronic components that have been packaged. The manufacturing apparatus is a manufacturing apparatus that manufactures a product by taking out each electronic component from packaged components in which a plurality of electronic components are packaged. The manufacturing apparatus is provided with: a component information reading unit that reads component information per unit of electronic component or per unit of package in the packaged components; a manufacturing control unit that controls, using the read component information, the manufacturing treatment of product into which electronic components indicated in the component information are incorporated; and an incorporation information generating unit that generates incorporation information regarding a state of incorporation of each electronic component in the product.

Manufacturing device, manufacturing management system, and manufacturing control program

An information administration system configured of: a component information management apparatus () including a component information storing unit () storing component information after sectionalizing the component information into public information and non-public information, and also sectionalizing the non-public information into information for designing and information for manufacturing, and an encryption processing unit () encrypting the non-public information; a designing information management apparatus () including a first component information receiving unit () receiving the component information, a first decryption unit () decrypting non-public component information for designing, and a designing information storing unit () storing designing information that is designed by adding the received component information thereto; and a manufacturing apparatus () including a second decryption unit () decrypting the received non-public component information for manufacturing, and a drive controlling unit () controlling driving of the manufacturing apparatus based on the received manufacturing information and component information.

Information administration system

In a self-calibration method of an angle detector, an angle interval between first and second scale reader heads are set, so that a single rotation is not equally divided into an integer number of portions by a value of the angle interval and that a plurality of rotations N are equally divided into M equal portions by the value of the angle interval. Readings by the scale reader heads during N rotations of the divided circle are obtained at a pre-set data sampling interval. From differences in readings by these scale reader heads, data of the sequential two-point method relating to an angle scale error of the divided circle are obtained at the data sampling interval. The scale error of the divided circle at the data sampling interval is calculated by synthesizing the data using the fact that an average of the data for the rotations N reaches approximately zero.

Self-calibration method for angle detector, angle detector, circumferential scale calibration device, and angle detector calibration device

A wave reduction gear () is disposed inside a device case () of a rotating table device (). Lubrication oil is sprayed from an oil supply channel (), which is formed in the device case (), toward an oil supply hole () formed in a cup-shaped flexible externally toothed gear (). A wave bearing () disposed in the interior is lubricated via the oil supply hole (). Lubricating oil that has entered into the flexible externally toothed gear () is forcibly suctioned to the exterior via an oil recovery channel () that is formed in the device case (). Accordingly, it will be possible to prevent oil from being suctioned due to the negative pressure state in the interior of the flexible externally toothed gear accompanying the high-speed rotation, and regions of the wave bearing () can be reliably lubricated.

Method for lubricating wave reduction gear, and rotating table device

It is to provide an optical element, an optical element molding die, and an optical element manufacturing method, which can easily but surely suppress generation of transcription failure of a resin material and also enables to manufacture an optical element with an excellent optical performance at a low cost while improving the yield. In an optical element formed with a resin material, a gate part is formed on a side face of an optical element main body, and a ratio of the thickness of the gate part with respect to the thickness of an optical function part of the optical element main body is set as 50% or more.

Optical element molding die, and optical element manufacturing method

There is provided a very thin light guide plate for a surface light source device and a method of manufacturing it without the use of high-precision molding machine. A surface light source device using this light guide plate generates outgoing light having high uniformity. According to the manufacturing method, a light guide plate free from a weld line or warp can be manufactured with good transferring characteristics. The light guide plate is thick on an incident surfaceside and thin on a lower surfaceside. At the central portion of an incident surfacein a longitudinal direction, a projecting portion obtained by cutting an overhang portionat a position a distance D apart from the incident surfaceis formed. The cut surface of the projecting portion is not made specular and is kept rough. In molding of the light guide plate, a molten material is supplied from the position of a gate markAfter molding, the overhang portionis cut off by an ordinary cutter, thereby obtaining a light guide plate.

Tapered light guide plate for surface light source device and method of making by injection molding via supplementary cavity

A method of refilling liquid into a cartridge according to the present invention is a method of liquid refilling, through which liquid is refilled into a used cartridge () in a liquid jet apparatus, comprising: a film removing process, in which an injection hole film () adhered around an air discharge opening (), which communicates with the interior of the used cartridge (), to seal the air discharge opening () is removed in order to make the air discharge opening () open; a liquid injecting process, in which liquid is injected into the used cartridge () through the air discharge opening () that has been made open in the injection hole film piercing process; and an injection hole film rewelding process, in which the film is rewelded using a surface other than an originally welded surface as a rewelded surface in order to seal again the air discharge opening (), through which the liquid is injected in the liquid injecting process.

Method of liquid filling of cartridge, liquid filling device, and cartridge

A surface light source device of side light type illuminating an LCD panel and comprising a guide plate, a primary light source, a reflection sheet, and a prism sheet for light control. A plurality of fine light scattering elements and rough area M are formed on an emission face of the guide plate. The rough area M is formed among the light scattering elements and has scattering power weaker than that of the light scattering elements. The dot-like light scattering elements are distributed according to a certain pattern that is designed to promote emission. Emission is promoted where the light scattering elements are formed and also in the area M. Accordingly, fine periodic bright-dark unevenness and glaring are reduced and the prism sheet, disposed on the emission face, is prevented from sticking to the emission face.

Surface light source device of side light type, liquid crystal display and guide plate

Optical element, optical element molding die, and optical element manufacturing method

There is provided a very thin light guide plate for a surface light source device and a method of manufacturing it without the use of high-precision molding machine. A surface light source device using this light guide plate generates outgoing light having high uniformity. According to the manufacturing method, a light guide plate free from a weld line or warp can be manufactured with good transferring characteristics. The light guide plate is thick on an incident surface 1 side and thin on a lower surface 4 side. At the central portion of an incident surface 1 in a longitudinal direction, a projecting portion obtained by cutting an overhang portion 7 at a position a distance D apart from the incident surface 1 is formed. The cut surface of the projecting portion is not made specular and is kept rough. In molding of the light guide plate, a molten material is supplied from the position of a gate mark 9. After molding, the overhang portion 7 is cut off by an ordinary cutter, thereby obtaining a light guide plate.

An olefinic copolymer having a cyclic structure is prepared by copolymerizing a) ethylene (M1) and b) dicyclopentadiene or tricyclopentadiene (M2), and, optionally c) a cyclic olefin (M3), in the presence of a catalyst which contains a metallocene compound (A) having formula &lsqb;1&rsqb;: H C(R&prime; Cp)(R&Prime; Cp)MX &lsqb;1&rsqb;, wherein M is zirconium or hafnium, Cp has a cyclopentadienyl skeleton, each of R&prime; and R&Prime; is a hydrocarbon group having 1 to 10 carbon atoms, each of two X's which may be the same or different from each other, is a halogen, a hydrogen, a hydrocarbon group having 1 to 20 carbon atoms, a halogenated hydrocarbon group, an alkylamino group, an alkoxy group, an aryloxy group of the formula &mdash;O&mdash;Ar&mdash;Y , a thioalkyl group, or a thioaryl group of the formula &mdash;S&mdash;Ar&mdash;Y ; wherein Ar is an aromatic ring, Y is a halogen, a hydrogen, a hydrocarbon group having 1 to 20 carbon atoms, a halogenated hydrocarbon group, an alkoxy group, an alkylamino group, a cyano group or a nitro group, and p is an integer of from 1 to 5, and each of m and n is an integer of from 0 to 4, provided that m and n are not equal, and m&plus;n is an integer of from 3 to 6, and an aluminoxane (B), is used.

Method for producing an olefin type copolymer having a cyclic structure

A guide plate having an emission face for light-output, a back face and an incidence end face for light-input is improved. The emission face is provided with a plurality of projections each of which includes a blunt top portion. The projections have shapes such as like domes or like ridges. Each dome-like projection has a diameter ranging, for example, from 50 &mgr;m to 200 &mgr;m and has a height ranging, for example, from 0.1 &mgr;m to 50 &mgr;m. The dome-like projections distribute with density such that one or more projections are allocated, for example, per box of 0.5 mm&times;0.5 mm. Ridge-like projections run so as to have a crossing angle, for example, 60 degrees or more with respect to the incidence end face. Ratio of repetition pitch of the ridge-like projections to their height falls within a range, for example, from 5000:1 to 1:1. Height of each ridge-like projection may fall within a range from 1 &mgr;m to 100 &mgr;m. The emission face may be further provided with light scattering pattern consisting of a plurality of scattering elements to scatter illumination light. The improved guide plate is employed in a surface light source device of side light type. The surface light source device may be applied to a LCD having a LCD panel, which is illuminated by the light source device.

Growing community of inventors

Nagano, Japan

Hiroshi Yamazaki