Taiyo Yuden Co., Ltd.

Rikkyo Gakuin

Sumitomo Riko Company Limited

Tokyo Printing Ink Mfg. Co., Ltd.

Yuji Tomizawa

Toru Fujii

Emiko Hamada

Toshiaki Tajima

Ryou Negishi

Yasutomo Suga

Akio Urushiyama

Wakae Akaishi

Takeshi Nakajima

Masataka Watabe

Motomitsu Hagiwara

Toshiya Kuji

Yasunari Kato

Hiroyoshi Mori

Takeshi Otsu

Kazushige Koyama

Akimasa Miyata

Kiyomitsu Shinsho

Tokunori Kobayashi

Koki Ikeda

Atsushi Fushimi

A multilayer ceramic electronic component includes a ceramic body, and first and second external electrodes facing each other in a second axis direction. The ceramic body includes internal electrodes, and has a rectangular parallelepiped shape having first and second end surfaces, and four connection surfaces each connecting the first and second end surfaces. The connection surface has an uneven region located between the first and second external electrodes. The uneven region includes recess portions formed along an extension direction intersecting the second axis direction and arranged along an arrangement direction orthogonal to a depth direction and the extension direction, and a protrusion portion located between the recess portions. A depth of the recess portion in the depth direction is 0.1 μm or greater and less than 2.5 μm. An arrangement pitch of the recess portions along the arrangement direction is 1 μm or greater and 80 μm or less.

Multilayer ceramic electronic component with uneven region between external electrodes

A multi-layer ceramic electronic component includes a ceramic body and an external electrode. The ceramic body includes a first main surface and a second main surface that face in a first direction, internal electrodes laminated in the first direction, and a penetrating hole that has a diameter decreasing from the first main surface toward the second main surface and includes a tapered surface, the internal electrodes being exposed on the tapered surface. The external electrode includes a first conductive layer disposed along the tapered surface, and a second conductive layer disposed along the first main surface and connected to the first conductive layer.

Multi-layer ceramic electronic component, method of producing the same, and circuit board

A multi-layer ceramic electronic component includes: a ceramic body including first and second main surfaces facing in a first axis direction, first and second end surfaces facing in a second axis direction, and first and second internal electrodes; a first external electrode including a first cover portion covering the first end surface, and a first extended portion extending from the first cover portion to the second main surface; and a second external electrode including a second cover portion covering the second end surface, and a second extended portion extending from the second cover portion to the second main surface, the multi-layer ceramic electronic component satisfying that, when Trepresents a dimension of the ceramic body in the first axis direction and Trepresents a dimension of each extended portion in the first axis direction, T+Tis 50 &#x3bc;m or less, and T/(T+T) is 0.32 or less.

Multi-layer ceramic electronic component

A multi-layer ceramic capacitor includes a ceramic body, a first external electrode, and a second external electrode. The ceramic body includes ceramic layers laminated along a first direction, first internal electrodes and second internal electrodes that are alternately disposed between the ceramic layers, a first end surface and a second end surface that are oriented in a second direction orthogonal to the first direction, and a first inner groove and a second inner groove that are respectively formed in the first end surface and the second end surface along the first direction. The first and second external electrodes respectively cover the first and second end surfaces, the first internal electrodes being drawn to the first end surface and protruding in the first inner groove, the second internal electrodes being drawn to the second end surface and protruding in the second inner groove.

Multi-layer ceramic capacitor and method of producing the same

There is provided a ceramic electronic component including: a ceramic chip having a first surface, a second surface facing the first surface, and a third surface connecting the first surface to the second surface; a first electrode unit disposed on the first surface; a second electrode unit disposed on the second surface apart from the first electrode unit; and a modified zone disposed on the third surface, and modified by irradiation of a high energy beam.

Ceramic electronic component and method of producing the same

A ceramic electronic component includes a ceramic body and an external electrode. The external electrode is formed along a surface of the ceramic body and includes a tin layer as an outermost layer. The tin layer includes dispersed pores.

Provided is a mesh-patterned resin molded product () used for encasing and protecting a hollow piping member provided in a vehicle or a small ship. The mesh-patterned resin molded product (), in a case of an ordinary state where no load is applied to the mesh-patterned resin molded product (), includes a plurality of first resin wired portions () that extend parallel to each other, and a plurality of second resin wired portions () that extend parallel to each other in a direction respectively intersecting the first resin wired portions (). Each of the first resin wired portions () and each of the second resin wired portions () are joined to each other on a joint portion () positioned at a mutual intersection portion. At the intersection portion, a direction passing through both axial centers of the first resin wired portion () and the second resin wired portion () and being orthogonal to both the axial centers is set as an orthographic projection direction P. When the first resin wired portion () and the second resin wired portion () are viewed in the orthographic projection direction P, a second surface area that is a surface area of the joint portion () between the first resin wired portion () and the second resin wired portion () is smaller than a first surface area that is an overlapping surface area between the first resin wired portion () and the second resin wired portion (). The plurality of first resin wired portions () and the plurality of second resin wired portions () are formed of a material including a thermoplastic resin.

Mesh-patterned resin molded product

The present invention provides a thermoluminescent phosphor for obtaining a two-dimensional or three-dimensional dosimeter for measuring dose absorbed by biological tissues, which phosphor has superior handleability, superior biological tissue equivalence, and superior precision. It is produced by a method comprising (A1) mixing LiBO, BOand MnO, (A2) firing the mixture at 770 to 840&#xb0; C., and (A3) obtaining the thermoluminescent phosphor comprising lithium triborate as a base material and manganese as a luminescent center present in the base material by further adding and mixing LiBOinto the fired product and then firing the mixture at 770 to 840&#xb0; C., wherein the molar ratio of LiBO:BOin A1 is 1:X (1&#x3c;X&#x2266;4), MnOis 0.02 to 1.0 mass % relative to the total mass of the BOand the total amount of the LiBOadded in A1 and A3, and LiBOin A3 is (X-1) mol relative to 1 mol of the BO.

Manganese-containing lithium triborate thermoluminescent phosphor, and method for producing same

There is provided a thermoluminescent phosphor characterized in that a distribution of the emission intensity of thermoluminescence is present in a visible range that does not overlap the peak of the heating-caused emission intensity of the thermoluminescent phosphor itself and also has one peak within a temperature range in which a resin to be used as a binder can resist heat optically. There is also provided a method of producing the thermoluminescent phosphor. More specifically, there are provided a thermoluminescent phosphor that comprises lithium heptaborate as a base material and copper as a luminescent center present in the base material and which is characterized in that the distribution of the emission intensity of thermoluminescence versus temperature is a sole and monomodal distribution within the range of from 45&#xb0; C. to 130&#xb0; C., and a method of producing the thermoluminescent phosphor.

Thermoluminescent phosphor and method of producing the same

Provided are a dosimeter which uses thermoluminescent plates and with which a three-dimensional dose distribution of radiation can be acquired, a method of producing the dosimeter, and a method of using the dosimeter. A thermoluminescent layered productis constituted of a plurality of thermoluminescent plateswhich are layered. Each of the thermoluminescent platesis constituted of a thermoluminescent phosphor containing no aluminum (III) and a heat-resistant resin. The thermoluminescent phosphor comprises lithium tetraborate as a base material and manganese as a luminescent center contained in the base material.

Thermoluminescent layered product, thermoluminescent plate, method of producing thermoluminescent layered product, method of producing thermoluminescent plate and method of acquiring three-dimensional dose distribution of radiation

A multilayer type optical information recording medium in which in multilayering of a write-once type optical information recording medium, when a second film is formed using a metallic stamper, a protective layer composed of an inorganic material is free from peeling, is provided. In the multilayer type optical information recording medium including an interlayer, the interlayer is constituted by multiple films of a first film contacting a protective layer and a second film contacting a reflection layer; materials of the first and second films are constituted of materials different from each other; and a peeling resistance of the material of the first film against a material of the protective layer of the first optical information recording layer is higher than that of the second film.

Optical information recording medium and manufacturing method therefor

An optical information recording medium includes a disk-like substrate having a hole in a central portion thereof, and a light-reflective layer, a dye recording layer containing an organic dye, an intermediate layer composed of an inorganic substance, and a light-transmissive layer composed of a resin disposed in that order on one principal surface of the substrate, in which information is recorded/reproduced by irradiation of laser light from the light-transmissive layer side. In the optical information recording medium, the light-transmissive layer covers a surface of the intermediate layer from an inner peripheral edge of the intermediate layer to an outer peripheral edge of the intermediate layer, and a vicinity of an outer peripheral edge of the light-transmissive layer is in contact with the substrate in an annular region extending around an outer peripheral side of the substrate.

Optical information recording medium

An optical information medium comprises a pair of discs which are bonded to each other, an optical recording layer provided on at least one of the discs, and a reflecting layer formed on an upper side of the optical recording layer. The optical information medium further includes an adhesive for bonding the pair of discs provided on the reflecting layer, wherein the adhesive has a thickness ranging from 10 to 80 &#x3bc;m. A protecting layer is provided on the upper side of the reflecting layer wherein the pair of discs may be bonded by the protecting layer. The optical recording layer, reflecting layer and protecting layer may be directly sequentially provided on the disc but another substrate layer may be inserted between these layers. There is employed, as the adhesive, those including a reactive curing resin or a hot melt material, and it is preferable that the shrinkage rate of the adhesive be less than 15%.

Optical information medium

An optical information medium made up of a transparent substrate capable of allowing a recording laser beam to penetrate therethrough; a recording layer formed on the transparent substrate; and a reflective layer formed on the recording layer and reflecting a reproducing laser beam thereupon. A numerical aperture of an objective lens of an optical pickup for irradiating the recording laser beam on the recording layer is approximately 0.65, and the numerical aperture of an objective lens of the optical pickup for irradiating the recording laser beam on the reflection layer is approximately 0.60. An inclination angle &thgr; at both edges of the groove for tracking, being formed spirally on the surface of the transparent substrate on which the recording layer is formed, with respect to the main surface of the transparent substrate, is selected to be from 55&deg; to 75&deg;. An index &prop;, expressed by 1&minus;Dr/Ds when assuming that the depth of the groove on the transparent substrate is Ds and the depth of the recording layer at the position of said groove is Dr, is selected to be from 0.2 to 0.4. Further, the full width at half maximum of the groove on the transparent substrate is selected to be from one-third (&frac13;) to a half (&frac12;) of the pitch p of the groove. With this optical information medium, it is possible to record high density signals as signals that are readable optically, as well as to record them with stability.

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Tokyo, Japan

Yuji Tomizawa