Sony Corporation

Masahiro Sawaguchi

Kazuhiko Suzuki

Yasuhito Inagaki

Daisuke Hasegawa

Yuko Abe

Haruo Watanabe

Takeshi Koizumi

Hiroshi Kudo

Kazuya Hayashibe

Nobuyuki Nagai

Yusuke Suzuki

Takao Kudo

Tetsuya Komine

Tadanori Kawamura

Satsuki Yamada

A protrusion pattern forming device with a display function includes a transparent elastic sheet having an internal layer including colored liquid, and an actuator including a plurality of actuator elements disposed along one surface of the elastic sheet, each of the actuator elements changing its own shape in response to an application of a voltage, thereby allowing the surface of the elastic sheet to protrude. A protrusion pattern is formed on the elastic sheet, and a dot pattern corresponding to the protrusion pattern is displayed on the elastic sheet by selectively driving the plurality of actuator elements.

Protrusion pattern forming device with display function

A system to recycle plastics, which enables a supply of recycled plastics having a stable quality required for the recycled products. A system to recycle a used plastic material as a resin material including (a) means to sort used plastic materials for the purpose of recycling said used plastic materials, (b) means to crush and melt said used plastic material after it has been sorted, (c) reviving means to regain a desired property, and (d) means to measure a physical property of a reclaimed plastic after it has been revived and to indicate said measured physical property for quality assurance.

System for recycling a used plastic, method for reprocessing a used ABS resin, and reclaimed ABS resin

A hologram recording medium includes a stack of at least a lower transparent substrate, a recording layer made of a photocurable organic material, and an upper transparent substrate, wherein a spacer for keeping a thickness of the recording layer is dispersed and disposed in the inside of the recording layer in a direction of a principal plane of the hologram recording medium.

Hologram recording medium

A system for recycling plastics, which enables a supply of recycled plastics having a stable quality required for the recycled products. A system for recycling a used plastic material as a resin material, which has (a) means for sorting used plastic materials by purpose of recycling, (b) means for crushing and melting said used plastic material sorted, (c) reviving means for regaining a desired property, and (d) means for measuring a physical property of a reclaimed plastic revived and indicating said measured physical property for quality assurance.

Recycle system for used plastic, method of reclaiming used ABS resin and reclaimed ABS resin

It is an object of the present invention to provide a blasting method and a shot material, which are very practical both in the cost and the treatment performance. (a) A shot material containing a styrene ion-exchange resin or a waste material caused therefrom, or/and a dried sludge-derived material, (b) a shot material containing a resin which is comprised of a resin containing a rubber component and a resin containing no rubber component, and (c) a shot material containing at least one component selected from the group consisting of an epoxy resin composition and inorganic filler, and a blasting method using the shot material.

Blasting materials and method of blasting

The invention provides a shell material for recording media comprising an alloy between an acrylonitrile-butadiene-styrene resin and recovery polyethylene terephthalate, the content of recovery polyethylene terephthalate in the total amount of the alloy being in the range of 5 to 80% by mass. The invention also provides a shell material for recording media comprising an alloy between an acrylonitrile-butadiene-styrene resin and recovery polyethylene terephthalate and having a window part. The content of recovery polyethylene terephthalate in the total amount of the alloy is in the range of 5 to 80% by mass, and the window part comprises the polyethylene terephthalate resin, a polycarbonate resin or a polyphenylene ether resin as a constituting material.

Shell material for recording media

An object of the present invention is to impart good running stability and durability to a magnetic recording medium comprising a combination of a polyester polyurethane resin and a phenox resin as a binder for a magnetic layer of a coating type magnetic recording medium while ensuring excellent static magnetic properties. In order to achieve the object, the present invention provides a coating type magnetic recording medium having a magnetic layer formed on a nonmagnetic support and containing a magnetic powder, a binder and a lubricant, wherein a combination of a polyester polyurethane resin and a phenox resin is use as the binder, a combination of a polyhydric alcohol ester and silicone oil is used as the lubricant, and the surface extraction of the lubricant from the coating type magnetic recording medium is 3.0.times.10.sup.-3 to 3.0.times.10.sup.-2 g/m.sup.2.

Coating type magnetic recording medium

A magnetic recording medium exhibiting not only good durability and traveling reliability but also improved static magnetic properties and electromagnetic transduction characteristics can be obtained according to the present invention. The magnetic recording medium includes a non-magnetic substrate and a magnetic layer composed of a magnetic powder, a binder and a lubricant, wherein the binder contains not less than 50% by weight of a polyester-polyurethane resin having a number-average molecular weight (Mn) of not greater than 15,000 and a ratio of a weight-average molecular weight (Mw) to the number-average molecular weight (Mn) of not smaller than 2.5.

Magnetic recording medium

There is disclosed a magnetic recording medium which are not only excellent in chemical and magnetic stability, durability and traveling reliability but also has a good time index function. The magnetic recording medium according to the present invention includes a non-magnetic substrate and a magnetic layer formed on the non-substrate, the magnetic layer being composed mainly of .gamma.--Fe.sub.2 O.sub.3 and having a coercive force of 25 to 33 KA/m, a residual magnetic flux density of not less than 130 mT and a thickness of 1.5 to 2.0 .mu.m, wherein the magnetic recording medium has a total thickness of not more than 6 .mu.m, and is capable of recording thereon and/or reproducing therefrom a low frequency signal.

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Miyagi, Japan

Masahiro Sawaguchi