Abstract: According to the invention, a method of manufacturing an esterified substance including a process in which a copolymer is obtained by copolymerizing a 1-alkene having 5 to 80 carbon atoms and maleic anhydride, and a process in which an esterification reaction of the copolymer and an alcohol having 5 to 25 carbon atoms is caused in a presence of trifluoromethanesulfonic acid in order to obtain a reaction mixture containing an esterified substance including at least one repetition unit selected from formulae (c) to (f) is provided, and, in the formulae (c) to (f), R represents an aliphatic hydrocarbon group having 3 to 78 carbon atoms, R2 represents a hydrocarbon group having 5 to 25 carbon atoms, m represents the copolymerization molar ratio X/Y of the 1-alkene (X) to the maleic anhydride (Y) and is 1/2 to 10/1, and n is an integer of more than or equal to 1.

Abstract: According to the invention, a method of manufacturing an esterified substance including a process in which a copolymer is obtained by copolymerizing a 1-alkene having 5 to 80 carbon atoms and maleic anhydride, and a process in which an esterification reaction of the copolymer and an alcohol having 5 to 25 carbon atoms is caused in a presence of trifluoromethanesulfonic acid in order to obtain a reaction mixture containing an esterified substance including at least one repetition unit selected from formulae (c) to (f) is provided, and, in the formulae (c) to (f), R represents an aliphatic hydrocarbon group having 3 to 78 carbon atoms, R2 represents a hydrocarbon group having 5 to 25 carbon atoms, m represents the copolymerization molar ratio X/Y of the 1-alkene (X) to the maleic anhydride (Y) and is 1/2 to 10/1, and n is an integer of more than or equal to 1.

Abstract: A method of sealing a semiconductor element which involves applying an epoxy resin composition including an epoxy resin and a phenolic resin obtained by reacting phenol, a biphenyl compound represented by the general formula (3) and benzaldehyde to a semiconductor element and curing the composition to seal the semiconductor element: wherein X in the formula (3) is a halogen, an OH group or an OCH3 group. The molar ratio of the total of the biphenyl compound and benzaldehyde relative to the phenol is from 0.27 to 0.40, and the molar ratio of benzaldehyde/biphenyl compound is from 5/95 to 40/60.

Abstract: A method of sealing a semiconductor element which involves applying an epoxy resin composition including an epoxy resin and a phenolic resin obtained by reacting phenol, a biphenyl compound represented by the general formula (3) and benzaldehyde to a semiconductor element and curing the composition to seal the semiconductor element: wherein X in the formula (3) is a halogen, an OH group or an OCH3 group. The molar ratio of the total of the biphenyl compound and benzaldehyde relative to the phenol is from 0.27 to 0.40, and the molar ratio of benzaldehyde/biphenyl compound is from 5/95 to 40/60.

Abstract: Disclosed is a phenolic resin having flame retardance, fast curing property and low melt viscosity, which is useful for a curing agent for epoxy resin-based semiconductor sealing materials. Also disclosed are a method for producing such a phenolic resin and use of such a phenolic resin. Specifically disclosed is a phenolic resin obtained by reacting a phenol, a bismethylbiphenyl compound and an aromatic aldehyde at such a ratio that the molar ratio of the total of the bismethylbiphenyl compound and the aromatic aldehyde relative to the phenol is 0.10-0.60, and the aromatic aldehyde/the bismethylbiphenyl compound (molar ratio) is from 5/95 to 50/50. Also specifically disclosed is an epoxy resin composition composed of such a phenolic resin and an epoxy resin.

Abstract: In the present invention, a battery pack type discriminating or deciding concave portion (131) is formed at a position corresponding to a battery pack type deciding switch (214) of an SQ battery pack (1) and when the SQ battery pack (1) is set, the battery pack type deciding switch (214) is avoided to be pressed by a bottom (115) of the SQ battery pack (1) owing to the concave portion (131). In this way, as the switch (214) is avoided to be pressed, it is recognized that the set battery pack is an SQ battery pack (1) under charging. Therefore, according to the present invention, it is possible to identify battery packs among different charging modes and charging can be performed in a proper charging mode.

Abstract: Disclosed is a phenolic resin having flame retardance, fast curing property and low melt viscosity, which is useful for a curing agent for epoxy resin-based semiconductor sealing materials. Also disclosed are a method for producing such a phenolic resin and use of such a phenolic resin. Specifically disclosed is a phenolic resin obtained by reacting a phenol, a bismethylbiphenyl compound and an aromatic aldehyde at such a ratio that the molar ratio of the total of the bismethylbiphenyl compound and the aromatic aldehyde relative to the phenol is 0.10-0.60, and the aromatic aldehyde/the bismethylbiphenyl compound (molar ratio) is from 5/95 to 50/50. Also specifically disclosed is an epoxy resin composition composed of such a phenolic resin and an epoxy resin.

Abstract: A charging/discharging apparatus, method and system that receives power from a power supplying apparatus. The method includes a temperature measuring step for measuring an internal temperature of the charging/discharging apparatus. A first transmitting step transmits the internal temperature data of the charging/discharging apparatus to the power supplying apparatus. Charged state information of a battery pack attached to the charging/discharging apparatus is collected and supplied to the power supplying apparatus. A battery pack temperature measuring step measures an internal temperature of the battery pack and a second transmitting step transmits the internal temperature data of the battery pack to the power supplying apparatus.

Abstract: In the present invention, a battery pack type discriminating or deciding concave portion (131) is formed at a position corresponding to a battery pack type deciding switch (214) of an SQ battery pack (1) and when the SQ battery pack (1) is set, the battery pack type deciding switch (214) is avoided to be pressed by a bottom (115) of the SQ battery pack (1) owing to the concave portion (131). In this way, as the switch (214) is avoided to be pressed, it is recognized that the set battery pack is an SQ battery pack (1) under charging. Therefore, according to the present invention, it is possible to identify battery packs among different charging modes and charging can be performed in a proper charging mode.

Abstract: In case of the present invention, a microcomputer (271) controls a charging mode changeover switch (275) and connects the switch to a terminal (275d) to change the terminal (275d) to an initial charging mode power source (278). In this case, the microcomputer (271) requests the information on the charging capacity stored in a microcomputer (252) as charging information, the charging voltage measured by a voltage detector (258) and a standard charging capacity and obtains the information through a communication circuits (254) and (272). The microcomputer (271) obtains an actual charging capacity in accordance with a received measured charging voltage, compares the actual charging capacity with a stored charging capacity, and updates the actual charging capacity to zero when the comparison result is equal to or larger than a threshold value and the charging voltage is equal to or less than another threshold value. According to the present invention, a charging capacity is correctly corrected.

Abstract: In the present invention, a battery pack type discriminating or deciding concave portion (131) is formed at a position corresponding to a battery pack type deciding switch (214) of an SQ battery pack (1) and when the SQ battery pack (1) is set, the battery pack type deciding switch (214) is avoided to be pressed by a bottom (115) of the SQ battery pack (1) owing to the concave portion (131). In this way, as the switch (214) is avoided to be pressed, it is recognized that the set battery pack is an SQ battery pack (1) under charging. Therefore, according to the present invention, it is possible to identify battery packs among different charging modes and charging can be performed in a proper charging mode.

Abstract: In the present invention, a battery pack type discriminating or deciding concave portion (131) is formed at a position corresponding to a battery pack type deciding switch (214) of an SQ battery pack (1) and when the SQ battery pack (1) is set, the battery pack type deciding switch (214) is avoided to be pressed by a bottom (115) of the SQ battery pack (1) owing to the concave portion (131). In this way, as the switch (214) is avoided to be pressed, it is recognized that the set battery pack is an SQ battery pack (1) under charging. Therefore, according to the present invention, it is possible to identify battery packs among different charging modes and charging can be performed in a proper charging mode.

Abstract: In the present invention, a battery pack type discriminating or deciding concave portion (131) is formed at a position corresponding to a battery pack type deciding switch (214) of an SQ battery pack (1) and when the SQ battery pack (1) is set, the battery pack type deciding switch (214) is avoided to be pressed by a bottom (115) of the SQ battery pack (1) owing to the concave portion (131). In this way, as the switch (214) is avoided to be pressed, it is recognized that the set battery pack is an SQ battery pack (1) under charging. Therefore, according to the present invention, it is possible to identify battery packs among different charging modes and charging can be performed in a proper charging mode.

Abstract: In case of the present invention, a microcomputer (271) controls a charging mode changeover switch (275) and connects the switch to a terminal (275d) to change the terminal (275d) to an initial charging mode power source (278). In this case, the microcomputer (271) requests the information on the charging capacity stored in a microcomputer (252) as charging information, the charging voltage measured by a voltage detector (258) and a standard charging capacity and obtains the information through a communication circuits (254) and (272). The microcomputer (271) obtains an actual charging capacity in accordance with a received measured charging voltage, compares the actual charging capacity with a stored charging capacity, and updates the actual charging capacity to zero when the comparison result is equal to or larger than a threshold value and the charging voltage is equal to or less than another threshold value. According to the present invention, a charging capacity is correctly corrected.

Abstract: In case of the present invention, a microcomputer (271) controls a charging mode changeover switch (275) and connects the switch to a terminal (275d) to change the terminal (275d) to an initial charging mode power source (278). In this case, the microcomputer (271) requests the information on the charging capacity stored in a microcomputer (252) as charging information, the charging voltage measured by a voltage detector (258) and a standard charging capacity and obtains the information through a communication circuits (254) and (272). The microcomputer (271) obtains an actual charging capacity in accordance with a received measured charging voltage, compares the actual charging capacity with a stored charging capacity, and updates the actual charging capacity to zero when the comparison result is equal to or larger than a threshold value and the charging voltage is equal to or less than another threshold value. According to the present invention, a charging capacity is correctly corrected.

Abstract: In the present invention, a battery pack type discriminating or deciding concave portion (131) is formed at a position corresponding to a battery pack type deciding switch (214) of an SQ battery pack (1) and when the SQ battery pack (1) is set, the battery pack type deciding switch (214) is avoided to be pressed by a bottom (115) of the SQ battery pack (1) owing to the concave portion (131). In this way, as the switch (214) is avoided to be pressed, it is recognized that the set battery pack is an SQ battery pack (1) under charging. Therefore, according to the present invention, it is possible to identify battery packs among different charging modes and charging can be performed in a proper charging mode.

Abstract: In case of the present invention, a microcomputer (271) controls a charging mode changeover switch (275) and connects the switch to a terminal (275d) to change the terminal (275d) to an initial charging mode power source (278). In this case, the microcomputer (271) requests the information on the charging capacity stored in a microcomputer (252) as charging information, the charging voltage measured by a voltage detector (258) and a standard charging capacity and obtains the information through a communication circuits (254) and (272). The microcomputer (271) obtains an actual charging capacity in accordance with a received measured charging voltage, compares the actual charging capacity with a stored charging capacity, and updates the actual charging capacity to zero when the comparison result is equal to or larger than a threshold value and the charging voltage is equal to or less than another threshold value. According to the present invention, a charging capacity is correctly corrected.