Ngk Spark Plug Company, Limited

Mitsubishi Rayon Company, Limited

Masanori Ito

Tatsuya Katoh

Masaki Kutsuna

Hiroyuki Okazaki

Yoshihito Nakahara

Masatoshi Kamata

Tetsuya Torichigai

Kenji Honjou

Yoshihiro Kakumoto

Akira Aoki

Sigeru Takemae

Tatsuhiro Kato

Tadakatu Nozawa

Isamu Makihara

A method of manufacturing a circuit substrate includes the steps of preparing a conductor paste in which a powder of at least one of a metal boride and a metal silicide is added to a powder of silver (Ag), applying the conductor paste to a surface of a ceramic substrate which has been fired, applying a glass paste to the surface of the ceramic substrate after applying the conductor paste, firing the conductor paste applied to the surface so as to form a conductor trace, and firing the glass paste applied to the surface so as to form a coating layer.

Circuit board and production method therefor

A ceramic substrate includes a ceramic layer mainly formed of a glass ceramic and a conductor trace mainly formed of silver (Ag). In an adjacent region located adjacent to the conductor trace, the concentration of boron atoms (B) contained in the ceramic layer increases toward the conductor trace.

Ceramic substrate

A method of manufacturing a ceramic substrate includes the steps of preparing a ceramic paste in which a powder of at least one of a metal boride and a metal silicide is added to a raw material powder of a glass ceramic, applying the ceramic paste to a green sheet which is to become a ceramic layer after firing, applying a conductor paste which is to become a conductor trace after firing to the ceramic paste having been applied to the green sheet, and firing the green sheet carrying the ceramic paste and the conductor paste applied thereto.

Method of manufacturing a ceramic substrate

In a hollow fiber membrane flat module according to the present invention, both ends of hollow fiber membrane bundle which are formed by bundling a plurality of hollow fiber membrane as a sheet are fixed to two housing separately by a fixing resin while maintaining an opening condition in an opening end section in the follow fiber membrane. Furthermore, a maximum width in an orthogonal direction to a longitudinal direction of the hollow fiber membrane is no longer than 25 mm in a cross section which is orthogonal to a longitudinal direction of the housings, and a maximum deflection in the housings which are measured according to a method for measuring the deflection according to the present invention is not more than 1% of a distance between the two housings. In such a hollow fiber membrane module, it is possible to enhance the integration ratio of the hollow fiber membrane module per a unit volume of the hollow fiber membrane module unit in which there is less deflections in the housing caused by adjust the wavelength dispersion and the dispersion slope always in minimum level automatically only by matching the position of the reflecting mirror, the dispersion compensation amount and the dispersion slope compensation amount which correspond to a shape of the reflecting surfaceon the reflecting mirrorwhich is selected under such a current condition in advance. Factors such as an air bubble, and the entanglement of the hollow fiber membranes is restricted; thus, a hollow fiber membrane is not damaged. Also, in the hollow fiber membrane module, it is preferable that the housing is provided with a reinforcing rib section which strengthens the housing.

Hollow fiber membrane module, and a manufacturing method therefor, and housing for hollow fiber membrane module

Hollow fiber membrane module, method of manufacturing the hollow fiber membrane module, and housing for hollow fiber membrane module

A liner for a floppy disk which comprises a nonwoven fabric and a high molecular resin attached thereto, said nonwoven fabric containing thermoplastic fibers and being of a structure wherein a thermocompression-bonded part and a non compression-bonded part are present and the form of the fabric is maintained through the thermocompression-bonded part, and a process for producing a liner for a floppy disk which comprises partially thermocompression-bonding a sheet-formed fiber aggregate containing thermoplastic fibers and then attaching a high molecular resin thereto.

Liner for floppy disk and process for producing the same

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Nagoya, Japan

Masanori Ito