Tdk Corporation

Other

Masahiro Karatsu

Shigeki Sato

Masaaki Kanasugi

Tsutomu Chou

Katsuhiko Wakayama

Masahiro Ito

Takeshi Nomura

Chikara Ishizaka

Tsuneo Suzuki

Shigeki Satou

Masao Shigeta

Yasuo Hashimoto

Tamotsu Ishiyama

Shohei Mimura

Mari Fujii

Katsumi Saito

A printing and drying method comprising laying a support sheetelongated in the long direction so as to bridge both a printing zoneand a drying zone, in the printing zone, giving the support sheeta first tension F, in that state, printing the support sheetwith predetermined patterns, then feeding the support sheettoward the drying zone, in the drying zone, giving the support sheeton which the predetermined patterns were printed a second tension F, and in that state, drying it in a drying chamber. The first tension Fand the second tension Fare given by separate tension giving means, and the second tension Fis tension given along the support sheetin the long direction and able to prevent shrinkage of the support sheetin the long direction while passing through the drying zone

Printing and drying method, method of production of electronic device, and printing and drying system

It is an object of the present invention is to provide a method for manufacturing a multi-layered ceramic electronic component which can reliably prevent a multi-layered unit including a ceramic green sheet and an electrode layer from being damaged and efficiently laminate a desired number of the multi-layered units, thereby manufacturing the multi-layered ceramic electronic component. The method for manufacturing a multi-layered ceramic electronic component according to the present invention includes a step of laminating a plurality of multi-layered units each formed by laminating a release layer, an electrode layer and a ceramic green sheet on a support sheet in this order, the method further including steps of positioning the multi-layered unit on a base substrate so that the surface of the ceramic green sheet is contact with an agglutinant layer formed on the surface of the base substrate in such a manner that the bonding strength between itself and the support substrate is higher than the bonding strength between the support sheet and the release layer and lower than the bonding strength between itself and the ceramic green sheet, pressing it and laminating multi-layered units on the base substrate.

Method for manufacturing multi-layered ceramic electronic component

At the time of pressing an electrode layeragainst a surface of a green sheethaving a thickness of 3 &#x3bc;m or thinner to bond the electrode layerwith the surface of the green sheet, an adhesive layerhaving a thickness of 0.02 to 0.3 &#x3bc;m is formed on a surface of the electrode layeror the surface of the green sheet. It is possible to easily transfer a dry type electrode layer to the surface of the green sheet with high accuracy without breaking or deforming the green sheet.

Production method of multilayer electronic device

A method for manufacturing a multi-layered ceramic electronic component includes positioning a multi-layered unit including a release layer, an electrode layer and a ceramic green sheet formed on a support sheet in such a manner that the surface of the multi-layered unit is located on a base substrate and a step of pressing the multi-layered unit toward the base substrate, thereby laminating the multi-layered unit on the base substrate, and employs as the base substrate a base substrate having such surface roughness as to include per 0.01 mmthereof not more than one protrusion that can penetrate the ceramic green sheet of the multi-layered unit laminated on the base substrate to half or more the thickness of the ceramic green sheet and include per 100 mmthereof not more than one protrusion that can completely penetrate the ceramic green sheet.

The object of the present invention is to provide an electromagnetic wave absorbing sheet excellent in permeability in high frequencies and to provide a method for manufacturing the same. The electromagnetic wave absorbing sheet of the present invention comprises insulating layers on the both sides of a magnetic layer. The magnetic layer is formed by densely depositing a large amount of magnetic powder such that the powder undergoes plastic deformation. Each magnetic powder is made to be a composite magnetic material formed of the soft magnetic metal phase consisting of a flaky soft magnetic metal powder and the insulating phase consisting of an insulating film formed on the surface of the soft magnetic metal phase. Additionally, another configuration can be taken in which a conductive layer is arranged on one of the insulating layers arranged on both sides of the magnetic layer, and the conductive layer is covered with an insulating layer.

Composite magnetic material electromagnetic wave absorbing sheet method for manufacturing sheet-like product and method for manufacturing electromagnetic wave absorbing sheet

The invention is a magnetic recording medium which is effectively protected against forgery by the alteration of recorded data, and a method for carrying out writing and reading on this magnetic recording medium. The magnetic recording medium of the invention comprises a recording material composed of a crystalline alloy containing Fe and Al . In the recoding material, the total amount of Fe and Al is at least 90 at % and the atomic ratio Al/(Fe&plus;Al) ranges from 0.30 to 0.45. The recording material changes from a disordered phase to an ordered phase by heating. The recording material has a saturation magnetization of at least 45 emu/g prior to heating and lowers its saturation magnetization by at least 35 emu/g upon heating. Dark regions are observable in a bright-field image of the recording material by transmission electron microscopy, the dark regions accounting for 15-60% of the recording material in areal ratio and having a maximum breadth of 10-200 nm.

Growing community of inventors

Tokyo, Japan

Masahiro Karatsu