Kokusai Denshin Denwa Co., Ltd.

Kdd Corporation

Mitsubishi Denki Kabushiki Kaisha

Nippon Electric Co., Ltd.

Nippon Beet Sugar Manufacturing., Co., Ltd.

Hideaki Yamada

Toshikane Oda

Susumu Mori

Seiichiro Nakao

Keiji Yoshimura

Tohru Asami

Hikaru Yagi

Takuya Nakagawa

Yasuomi Ota

Yoshiaki Okuhama

Hiroto Masaki

The invention is to provide a base paper for a raising seedling pot and a raising seedling pot produced from the base paper, wherein while the base paper maintains a sufficient strength during raising seedlings and planting in the field, it is degraded over time by soil microorganisms after transplanting in the field and is produced by using a crosslinking agent that does not contain formaldehyde, resulting in a reduced burden on the environment; the base paper for a raising seedling pot, wherein a citric acid crosslinking agent, as a crosslinking agent for cellulose, is used in order to block the hydroxy group of cellulose in paper through crosslinking; and the raising seedling pot produced by molding and processing the base paper.

Decay-resistant paper

A network interworking device used in a communication system which has a first communication network with an IP, a second communication network and a plurality of other network interworking devices connected to the first communication network, the network interworking device being connected between the first communication network and the second communication network for converting IP packets communicated in the first communication network and information signals communicated in the second communication network with each other. The network interworking device includes a packet assembler unit for assembling information signals of a plurality of calls received from the second communication network into a single IP packet when the plurality of calls are to be transmitted to the same network interworking device.

Network interworking device for LAN/internet

A method for evaluating quality-of-service in packet switching network uses an evaluation signal with a frequency component that changes continuously with a lapse of time. The evaluation signal is a time stretched pulse, and wherein the method includes a step of transmitting the time stretched pulse to at least one packet switching network, a step of receiving the time stretched pulse passed through the at least one packet switching network, and a step of comparing the transmitted time stretched pulse with the received time stretched pulse.

Method, apparatus and system for evaluating quality-of-service in packet switching network

A network interworking device for executing conversion between IP packets and ATM cells, the network interworking device being to be connected between an IP network in which information are transmitted in a form of the IP packets and an ATM network in which information are transmitted in a form of the ATM cells, the IP network having a hierarchy structure with an IP layer, the ATM network having a hierarchy structure with an AAL layer, the network interworking device comprising means for assembling a plurality of ATM cells in the ALL layer of the ATM network into an IP packet when the plurality of the ATM cells are to be transmitted to the same address in the IP communication network, the assembled IP packet being transmitted to the IP layer, and means for disassembling an IP packet in the IP layer of the IP network into a plurality of ATM cells, the disassembled ATM cells being transmitted to the AAL layer.

Network interworking device for IP network / ATM network

A routing control communication system includes a circuit switched network provided with a service control information database having a telephone numbers table, an interconnection network provided with a network communication protocol and an information terminal, and a network interworking equipment provided with one terminal connected with the circuit switched network and the other terminal connected with the interconnection network. The information database is connected with the interconnection network, and the information terminal of the interconnection network is constituted so as to obtain a transferred terminal number corresponding to a called telephone number from the service control information database.

Routing control communication system between circuit switched network and internet

This invention has an object of providing an air conditioner for a railway vehicle which can restrict a reduction in the introduced volume of outside air during a high-speed running of a vehicle and which can achieve lower noise. To achieve this object, the air conditioner for a railway vehicle includes an external cover 4 provided along the same surface as a vehicle surface, an air intake port 5 with a periphery provided on the external cover 4 and having a roundness in the cross-sectional configuration of an inside edge portion 12a of the intake port periphery, an air intake louver 11 disposed in the air intake port 5 to intersect a vehicle running direction, and an air exhaust port 3 for exhausting air that has been heat-exchanged, wherein an upper end surface 11a of the louver 11 is recessed from the surface of the exterior cover 4, and a cross-sectional configuration of the edge portion 11b of the upper end surface 11a has a roundness.

Air conditioner for a vehicle

A NAND logic gate circuit having a first input circuit receiving a first input signal, an inverter circuit for inverting the output of the first input circuit, a second input circuit for receiving a second input signal, an AND gate circuit for producing a logical AND output signal in response to the outputs of the inverter circuit and the second input circuit, and a PNP transistor responsive to the second input signal having a low value for controlling the value of the output signal of the first input circuit independent of the value of the first input signal. The NAND gate circuit has a faster response time to changes in the value of the first input signal than comparable prior art circuits and reduces the current flow to the second input terminal when the first input signal is high and the second input signal is low.

Growing community of inventors

Tokyo, Japan

Hideaki Yamada