Abstract: A resin composition for forming a phase-separated structure contains a block copolymer that is formed of a first block, a second block, and a third block, which are bonded to one another. The structure of a constituent unit of a polymer constituting the first block is identical to the structure of a constituent unit of a polymer constituting the third block. The number-average molecular weight (Mn3) of the polymer constituting the third block is smaller than the number-average molecular weight (Mn1) of the polymer constituting the first block.

Abstract: A method of producing a triblock copolymer, the method including reacting a diblock copolymer that contains a first block formed from a repeating structure including a constituent unit containing an aromatic hydrocarbon group, and a second block formed from a repeating structure including a constituent unit derived from an ?-substituted acrylic acid ester with a homopolymer that contains a third block formed from a repeating structure including a constituent unit containing an aromatic hydrocarbon group and containing a hydroxy group bonded to a terminal of a main chain in the third block to obtain a triblock copolymer, in which the reaction is transesterification of the constituent unit derived from an (?-substituted) acrylic acid ester at a terminal of a main chain of the diblock copolymer with the homopolymer.

Abstract: An oven-controlled crystal oscillator according to one or more embodiments may include a core section having a crystal resonator, an oscillator IC and a heating IC, wherein the core section is supported by a package via an interposer, and furthermore the core section is hermetically encapsulated in the package.

Abstract: In a system in which data transfer interfaces respectively of apparatuses are connected via a bidirectional bus to each other, the availability ratio of the bus is improved. An apparatus to issue read and write requests includes a write buffer to store write data and a bus changeover unit to monitor an operation status of the bus for a read data transfer. The apparatus immediately sends a read request via the bus to a communication partner and then receives read data via the bus from the partner. A write request and associated write data are once stored in the write buffer. When a predetermined number of write data is accumulated, a data transfer direction of the bus is changed if the bus is not being used by a read data transfer to successively transmit the write requests and write data thereof to the partner.