Mitsui Toatsu Chemicals, Incorporated

Oji Paper Co., Ltd.

Teruo Hyugaji

Akio Tanaka

Kohei Shizuka

Toshimasa Hashimoto

Junsuke Tanaka

Ikuo Inage

Noriaki Matsuda

Akira Miyamoto

Katsumi Kaneda

Itsuro Yamamoto

Nobuo Kuroda

Disclosed is a method for measuring the thermal diffusivity in the thickness direction of a thin sample plate, which has the steps of forming a conductive thin layer on at least one surface of said thin sample plate to allow the thin film to function as an ac heater generating joule heat, applying an ac current modulated with a given modulation frequency to the ac heater (conductive thin layer) so as to produce ac joule-heating, generating an oscillation response corresponding to said ac joule-heating on the opposite surface of the ac heater, and measuring the phase shift between said oscillation response, and the ac joule-heating, thereby obtaining the thermal diffusivity in the thickness direction of said sample plate. Apparatus useful for the method are also disclosed.

Method and apparatus for measuring thermal diffusivity by ac

A coating composition for a cast-coated paper which principally comprises a pigment and an adhesive and in which the adhesive is composed of (A) a rubber latex having an average particle size of 0.1 to 0.3 micron and (B) a rubber latex or an acrylic emulsion having an average particle size of 0.5 to 1.5 micron and the sum of the solid content of the components (A) and (B) is in the range of 9 to 30 parts by weight per 100 parts by weight of the pigment is herein provided. The coating composition may further contain casein as a binder. In addition, inorganic compounds selected from NaCl, Na.sub.2 SO.sub.4, ZnO and MgO and organic acid salts selected from formates or acetates of Ca, Zn, Mg may be added to the coating composition as coagulants. The use of the aforesaid coating composition makes it possible to produce cast-coated paper having excellent permeability, gloss and surface strength at a high speed.

Coating composition and cast-coated paper coated with the same

A catheter equipped with a pressure sensor, which is composed of a fine insertion tube provided with the pressure sensor at the tip thereof and having sufficient stiffness to permit its insertion into and through a blood vessel and a fine and flexible guide tube connected to the fine insertion tube.

Catheter with pressure sensor

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Kanagawa, Japan

Teruo Hyugaji