Asahi-dow Limited

Fujitsu Corporation

Nippon Oil Company

Tokyo Shibaura Denki Kabushiki Kaisha

Asahi Kasei Kogyo Kabushiki Kaisha

Y. Toyoda International Patent Office

Takashi Kaneko

Hideo Hata

Isao Yoshimura

Osamu Mizukami

Junichi Kageyama

Tadaaki Tanaka

Masaaki Nagasaka

Keita Kobayashi

Noboru Ishida

Masaki Nagao

Tatsuo Omata

Tadahiro Ohta

Takashi Nakano

Takashi Ueno

Koji Oyama

Kazutoshi Kobayashi

Shouichi Kimura

Jun Akimoto

Norishige Ichihashi

Tokihiko Shidara

Hironobu Oshika

Hiroki Takayama

The present invention relates to a communication system, and the invention specifically provides a contents server that appropriately stores media contents from group users in a PoC Service and a conference service. The contents server includes: a recording unit that records media information from plural users in a communicatable state participating in a predetermined group, for each group; a detecting unit that detects a communicatable state or an uncommunicatable state of each participating user, at each predetermined time; and a deleting unit that deletes confirmed media information already recorded in the recording unit, upon detecting that all the participating users are in the communicatable state.

Contents server and contents server system

It is determined whether a call-connection condition set to a call-connection device is a first call-connection state or a second call-connection state. When the determination result shows that the first call-connection state is set, a call is connected from an originating terminal to a destination terminal. When the determination result shows that the second call-connection state is set, the call is connected from the originating terminal to the destination terminal and conversation-termination processing is performed without waiting for a disconnection request transmitted from the originating terminal or the destination terminal.

Telephone-line-connection method

The present invention relates to a portable wireless terminal, and in particular, a portable wireless terminal such as a cellular phone, etc., and its security system that can reliably prevent, by remote control, improper use of the portable wireless terminal by a third party when it is lost or stolen. The portable wireless terminal that uploads backup data to a center by remote control from the center via a wireless network includes: a data access control section-that, in response to an instructions from the center, prohibits access to the backup data retained by a portable wireless terminal or deletes the backup data; an encryption section-that encrypts the backup data by using a public key notified from the center or a public key owned by the portable wireless terminal itself in response to instructions from the center; and a data transmission section-to-that transmits the backup data split into a plurality of data fragments on a plurality of communication paths to the center according to transmission priority of the backup data that is notified from the center or owned by the portable wireless terminal itself.

Portable wireless terminal and its security system

A method for connecting equipment in a network system, enabling prevention of the spread of viruses throughout the network resulting from connection to the network of a server, client, PC, or other equipment infected with a virus, in which the network configuration is separated into an operation network and a virus check network using VLAN (Virtual Local Area Network) functions, and at the time of connection of equipment, a virus check is performed in the virus check network, and equipment confirmed by the virus check to be safe is accommodated in the operation network. When safety cannot be confirmed through the virus check, the equipment is isolated from the operation network and from the virus network.

Method of connection of equipment in a network and network system using same

A fuel additive which comprises an amide compound of the formula ##STR1## wherein R.sup.1 is hydrogen or a C.sub.1 -C.sub.30 hydrocarbon group, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each are selected from the group consisting of hydrogen, a C.sub.1 -C.sub.10 hydrocarbon group and a group of formula (II), provided that at least one of R.sup.2, R.sup.3, R.sup.4 and R.sup.5 group of formula (II) R.sup.6 is a C.sub.2 -C.sub.6 alkylene group, R.sup.7 is a C.sub.1 -C.sub.6 alkylene group, a is an integer of 1-100, b is an integer of 0-100, the sum of a and b being equal to 1-200, c is an integer of 1-3, d is an integer of 0-2, the sum of c and d being equal to 3, and X is selected from the group consisting of hydrogen, a C.sub.1 -C.sub.30 hydrocarbon group, a group of formula (III), and a group of formula (IV), wherein formulas (II), (III) and (IV) are defined in the disclosure.

Fuel additive

A fuel additive comprising a urethane compound. A gasoline composition comprising gasoline blended with a urethane compound to suppress sludge or deposits in fuel intake systems or combustion chambers, such as an automobile engine.

Lead-free, high-octane gasolines are made up of a selected class of C.sub.5 -paraffinic and C.sub.6 -hydrocarbons and a methyl-t-butylether compound (MTBE) such that they have specified physical properties of research octane numbers, Reid vapor pressures, densities at 15.degree. C. and sulfur contents and also have blended specified amounts of the MTBE compound and of those hydrocarbons to satisfy the requirements as determined by several specified equations. Startability of a cold automobile engine is conspicuously improved and emission of NOx reduced.

Lead-free, high-octane gasoline

A specified gasoline capable of maintaining a high octane number and reducing the amount of NOx to be contained in exhaust gases when consumed, which comprises as essential components

Gasoline

A composition for shrinkable film which excells in heat-sealability, transparency, strength, and particularly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefine resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene- .alpha.-olefin copolymer and an elastomer consisting of block copolymer having at least one monovinyl substituted aromatic hydrocarbon polymer block and at least one polyolefin polymer block selected from at least one saturated polymer or unsaturated polymer made from mainly aliphatic conjugate diene derivative, and (C) is rigid polyolefin resins such as polypropylene. The packaging film excelling particularly in optical property, mechanical strength and low-temperature shrinking property is obtained by converting a homogenenous blend of the aforementioned composition, either in its crosslinked form or in its non-crosslinked form, into a tubular raw film, which is stretched at a temperature low enough for imparting a high orientation to the film. The process for the manufacture of this packaging film is also disclosed.

Composition for drawn film, cold film made of said composition and

A composition for shrinkable film which excels in heat-sealability, transparency, strength, and particularly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefine resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefin copolymer, and (C) is rigid polyolefin resins such as polypropylene. The packaging film excelling particularly in optical property, mechanical strength and low-temperature shrinking property is obtained by converting a homogeneous blend of the aforementioned composition, either in its crosslinked form or in its non-crosslinked form, into a tubular raw film, which is stretched at a temperature low enough for imparting a high orientation to the film. The process for the manufacture of this packaging film is also disclosed.

Composition for drawn film, cold drawn film made of said composition and

A composition for shrinkable film which excels in heat-sealability, transparency, strength, and particularly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefine resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefine copolymer, and (C) is rigid polyolefin resins such as polypropylene. The packaging film excelling particularly in optical property, mechanical strength and low-temperature shrinking property is obtained by converting a homogeneous blend of the aforementioned composition, either in its crosslinked form or in its non-crosslinked form, into a tubular raw film, which is stretched at a temperature low enough for imparting a high orientation to the film. The process for the manufacture of this packaging film is also disclosed.

Process for preparing cold drawn film from an ethylene-.alpha.-olefin

Composition for cold drawn film

A high-orientation multilayered film incorporates at least one cold drawn, highly oriented resin layer excellent in mechanical strength and suitable mainly for use as packaging material. Because of its specific stratal construction which is highly adaptable to afford a wide variety of specific functions, the composite film is suitable for manufacture of thermally shrinkable films which excel in transparency and in ability to shrink rapidly particularly at low temperatures. Also disclosed is a process for drawing at specific low temperatures at high expansion ratios the aforementioned multiplicity of resin layers either all by themselves or in conjunction with layers of other resins by utilizing the cold drawability of the aforementioned resin layers excelling in mechanical strength.

Cold drawn high-orientation multilayered film and process for

A composition for shrinkable film which excels in heat-sealability, transparency, strength, and particularly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefin resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefin copolymer, and (C) is rigid polyolefin resins such as polypropylene. The packaging film excelling particularly in optical property, mechanical strength and low-temperature shrinking property is obtained by converting a homogeneous blend of the aforementioned composition, either in its crosslinked form or in its non-crosslinked form, into a tubular raw film, which is stretched at a temperature low enough for imparting a high orientation to the film. The process for the manufacture of this packaging film is also disclosed.

A composition for shrinkable film which excels in heat-sealability, transparency, strength, and particulaly low-temperature quick shrinking property and, therefore, suits production chiefly of packaging materials, a film made of the composition and a process for the manufacture of the film are disclosed. Specifically, the composition comprises one of the specific combinations of components (A), (B) and (C), i.e. the combinations of (A)+(B), (B)+(C) and (A)+(B)+(C), wherein (A) is non-rigid polyolefine resins such as ethylene vinyl acetate, (B) is an elastomer comprising a specific ethylene-.alpha.-olefin copolymer, and (C) is rigid polyolefin resins such as polypropylene. The packaging film excelling particularly in optical property, mechanical strength and low-temperature shrinking property is obtained by converting a homogenenous blend of the aforementioned composition, either in its crosslinked form or in its non-crosslinked form, into a tubular raw film, which is stretched at a temperature low enough for imparting a high orientation to the film. The process for the manufacture of this packaging film is also disclosed.

Growing community of inventors

Kawasaki, Japan

Takashi Kaneko