Fuji Electric Co., Ltd.

Fujitsu Corporation

Kumiai Chemical Industry Co., Ltd.

Fujitsu Telecom Networks Limited

Ryo Maruyama

Akira Kato

Shin Soyano

Toru Yamada

Yukio Uchida

Fumiaki Takabe

Yoshikazu Takamiya

Ryuji Tamai

Ryo Kobayashi

Masaki Deguchi

Yoshinari Akakura

Takeshi Hatte

A method for producing a compound of a formula (3), including reacting a compound of a formula (1) with a compound of a formula (2) by using a tertiary alcohol and a base: where R, R, R, R, R, R, R, R, and Rare each independently a hydrogen atom, a halogen atom, a (C1-C4)alkyl, or a (C1-C4)alkoxy, the amount of the base used is 2.0-4.0 equivalents per 1 equivalent of the compound of formula (2), the amount of the tertiary alcohol used is 0.3-2.5 equivalents per 1 equivalent of the compound of formula (2), the base is a plurality of compounds comprising a lithium-containing base as a first compound, and a second compound selected from the group consisting of alkali metal hydrides, alkali metal amides, alkoxides, alkyl metals, alkali metals, and organic bases, and the reaction is performed in the presence of an aromatic hydrocarbon solvent.

Methods for producing nitroso compound and quinoxaline compound

A method for producing a nitroso compound of the following formula (3), comprising reacting a compound of the following formula (1) with a compound of the following formula (2) by using a tertiary alcohol and a base. 

A lead frame wiring structure including first and second bonding parts positioned apart from each other, and a coupling part extending in a first direction to couple the first and second bonding parts. The coupling part includes a coupling face section, and first and second leg sections extending respectively from two opposite end portions of the coupling face section toward the first and second bonding parts. The first bonding part includes a wide section having a side edge portion and a peripheral section adjacent to the side edge portion in a second direction, and a narrow section protruding in the first direction from the side edge portion. In the coupling part, the coupling face section is spaced apart from the two bonding parts in a third direction, and the first leg section is connected to the peripheral section of the first bonding part. The first to third directions are perpendicular to one another.

Lead frame wiring structure and semiconductor module

A cooler for cooling a semiconductor module to be secured to a base, the cooler including: a cooler body that includes a refrigerant flow path surrounded by a first wall part having a first through-hole, a second wall part that is arranged facing the first wall part and that includes a connection region which is to be connected to the base at a position opposing the first through-hole, and a side wall part for connecting the periphery of the first wall part and the periphery of the second wall part; and a lid for closing off the first through-hole.

Cooler and cooler fixing method

Semiconductor module

A communication system includes a plurality of communication devices forming a ring network and a monitoring device. Each of the plurality of communication devices appends, to a frame that the communication device relays, an ID tag indicating the number of communication devices relaying that frame in the ring network. The monitoring device refers to frames received by a predetermined communication device and having the ID appended thereto, and tallies an amount of data for frames for each number of relaying communication devices.

Communication system, monitoring device of ring network, and flow rate monitoring method of ring network

A communication apparatus of the embodiment is provided with a first IF card that performs a relay process of a data frame in a first direction of a ring network, a second IF card that performs a relay process of a data frame in a second direction of the ring network, a communication-status determination unit that monitors the communication status from the first IF card to the second IF card, a block control unit that sets a new block point to either the first IF card or the second IF card when the communication status is abnormal, and a ring protocol processor that notifies other communication apparatuses that constitute the ring network of information for notifying the switching of a block point in the ring network, which indicates that the new block point has been set.

Communication apparatus, interface card, and failure handling method

A switching apparatus for use in a network includes a packet reception processing unit which generates a reply packet as a response to a request packet having a virtual local area network tag and transmitted for a ping test via a network to the switching apparatus, and sets the same priority class in a virtual local area network tag of the reply packet as that in the virtual local area network tag of the request packet, wherein the switching apparatus performs priority control on the reply packet based on the priority class in the virtual local area network tag of the reply packet.

Switching apparatus

In order to rapidly restoration at a time of fault occurrence without lowering usage efficiency of circuit resources, in a configuration in which a plurality of physical circuits are grouped and communication is carried out with transmission data being distributed, a circuit having the minimum traffic from among the grouped circuits is set as a standby circuit, and, a traffic in a fault circuit is transferred to the standby circuit in a lump when a fault occurs in another working circuit.

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Kawasaki, Japan

Ryo Maruyama