Sanyo Electric Co., Ltd.

Chugai Seiyaku Kabushiki Kaisha

Hideki Yoshikawa

Takashi Umemoto

Hitoshi Hirano

Isao Yasuda

Kazuhiko Taketa

Yorinobu Yoshisato

Keiichi Kuramoto

Hiroshi Nonoue

Kenichiro Wakisaka

Kazuhiko Takahashi

Kenji Kubota

Masayuki Hata

Seiichirou Takahashi

Takahiro Miyaji

Masahiro Kajimura

Yoshinobu Taniguchi

In this semiconductor laser apparatus, a first wire-bonding portion is arranged at a position in a fourth direction from a first semiconductor laser device and in a first direction from a photodetector, and a second wire-bonding portion is arranged at a position in the fourth direction from the first semiconductor laser device and in a third direction from the first wire-bonding portion. A third wire-bonding portion is arranged at a position in a second direction from a third semiconductor laser device and in the first direction from the photodetector, and a fourth wire-bonding portion is arranged at a position in the second direction from the third semiconductor laser device and in the third direction from the third wire-bonding portion.

Semiconductor laser apparatus and optical apparatus

The present invention relates to a novel agent for treating chondroma and chondrosarcoma containing a substance which inhibits binding of parathyroid hormone related peptide to its receptor for improving the prognosis of chondroma or chondrosarcoma.

Agent for treating chondroma and chondrosarcoma

A ceramic green sheet of the invention contains an inorganic powder and an organic resin and is characterized in that the inorganic powder contains 72 to 98% by weight of aluminum oxide, 1 to 12% by weight of copper oxide, 0.1 to 3% by weight of titanium oxide, and 0.25 to 10% by weight of silicon oxide based on 100% by weight of the total weight of the inorganic powder.

Ceramic green sheet and ceramic substrate

A multilayer ceramic substrate which is obtained by firing multilayers of ceramic green sheets each having a dielectric layer, made of a glass-ceramic material comprising a mixture of alumina and a glass containing at least Si and Ca, and an electrode layer made of Ag and formed on the dielectric layer. The dielectric layer after firing includes anorthite (CaAlSiO) crystals having a grain size of up to 84 nm.

Multilayer ceramic substrate and method for manufacture thereof

In a composite device of the laminate type having a laminate structure of a composite ceramic layer and a dielectric ceramic layer, the composite ceramic layer including a layer portion having the same composition as the dielectric ceramic layer and a plurality of particle portions formed on the surface of the layer portion. The particle portions are made from magnetic ceramic material. This prevents the ceramic layers of the device from cracking and separating when fired.

Composite devices of laminate type and processes

A production process for an oxide magnetic material comprising the steps of blending raw material powder so as to take the composition of a hexagonal ferrite including: at least one kind of an element A selected from the group consisting of Ba, Sr and Ca; Co and Cu; Fe; and O; and sintering said blended powder at a temperature lower than 1000&#xb0; C.

Production process for oxide magnetic material and oxide magnetic material

A composite magnetic material contains first magnetic particles made of a first magnetic material and second magnetic particles made of a second magnetic material, the first and second magnetic particles being mixed with each other. A frequency characteristic of the first magnetic material is different from that of the second magnetic material. The first and second magnetic particles are mixed so that, at a frequency of an intersecting point between a first curve representing a frequency characteristic of a real part of a complex magnetic permeability of the first magnetic material and a second curve representing a frequency characteristic of a real part of a complex magnetic permeability of the second magnetic material, a value of a real part of a complex magnetic permeability of the composite magnetic material is larger than a value of the intersecting point.

Composite magnetic material and a method for producing the same

A method for manufacturing a multilayer ceramic substrate including the steps of providing multilayers of ceramic green sheets each having an electrode layer formed on a dielectric layer such that, after firing, at least one electrode layer which is separated by the dielectric layer from the adjacent electrode layer in the substrate has an overlapping area of 0.4 mmor smaller with the adjacent electrode; and firing the multilayers of the ceramic green sheets at a selected temperature such that, after firing, an interface between the dielectric layer and the electrode layer in the substrate has irregularities with a roughness Rmax of 6 &#x3bc;m or less per 100 &#x3bc;m standard length and the dielectric layer has a saturation sintered density.

Method for manufacture of multilayer ceramic substrate and multilayer ceramic substrate

In a composite device having a laminate structure of a magnetic body ceramic layerand a dielectric ceramic layeran intermediate layeris interposed between the ceramic layersandThe intermediate layervaries in composition in the direction of thickness thereof and exhibits substantially the same shrinkage as the magnetic body ceramic layerat a joint thereof with this layerwhen fired and substantially the same shrinkage as the dielectric ceramic layerat a joint thereof with the layerwhen fired, whereby the ceramic layers can be prevented from cracking or separating during firing.

Composite devices of laminate type and processes for producing same

An oxide magnetic material of the invention is an oxide magnetic material of a hexagonal ferrite containing Sr, has grain boundary phases in the surrounding of the crystal grains, contains not less than 2% by weight, preferably not less than 5% by weight, of Sr in the grain boundary phases and not less than 10% by weight, preferably not less than 25% by weight, of at least one additive element selected from Bi, V, B and Cu.

Oxide magnetic material and production method of the same

A composite multilayered ceramic board includes a multilayered ceramic board made of dielectric ceramics, a multilayered ceramic board made of magnetic ceramics and an adhesive layer made of thermosetting resin such as polyimide and the like. In this composite multilayered ceramic board, the dielectric multilayered ceramic board and the magnetic multilayered ceramic board are joined through the adhesive layer.

Composite multilayered ceramic board and manufacturing method thereof

A floating head slider comprising two side rails formed on a surface thereof to be opposed to a recording medium and arranged approximately in parallel to the direction of movement of the slider relative to the recording medium, and a cross rail formed on the surface and disposed between the two side rails. The cross rail is divided into a first portion and a second portion by an opening groove, which is defined by opposite side walls so inclined that an air outlet of the opening groove is smaller than an air inlet thereof.

Floating head slider and magnetic head for magnetic recording and

A magnetic head which comprises a pair of head chips each composed of a pair of plate-like magnetic cores superposed on and joined to each other with a spacer interposed therebetween and having a gap at the junction, a pair of base plates joined to the pair of head chips individually and positioned on opposite sides of and in parallel to a plane containing the gaps, each of the magnetic core having at one end thereof a head with a small width substantially equal to the width of tacks and an end portion of increased width opposite to the head, a shield member interposed between the head chips at the head portions, a stud portion provided on at least one of the pair of magnetic cores and projecting toward the other core, and a coil provided around the stud portion. A process for producing such magnetic heads wherein the pair of magnetic cores are positioned close to each other, and the gaps are accurately positioned on the same plane.

Magnetic head and process for producing same

A twin head for use in an electronic still camera includes a shield plate, first and second head chips bonded on opposite sides of the shield plate, and first and second reinforcing core members further bonded on first and second head chips, respectively. Each of the first and second head chip members has an elongated face that faces a recording medium and a magnetic gap defined at an intermediate portion of the elongated face. The length Wh of the elongated face is between 0.3 millimeter and 1 millimeter. Each of the first and second reinforcing core members has a coil wound thereon. The first and second head chip members, the shield plate, and the first and second reinforcing core members are bonded together such that the elongated faces of the first and second head chip members are in flush with each other and that the magnetic gaps of the first and second head chip members are aligned to each other.

Growing community of inventors

Takarazuka, Japan

Hideki Yoshikawa