Abstract: Provided is a method of producing a purified chlorogenic acid-containing composition, including a contact step of bringing a chlorogenic acid-containing composition having solids concentration of from 1.5 mass % to 4.7 mass % and a “caffeine/chlorogenic acid” mass ratio of 5 or less into contact with a porous adsorbent.

Abstract: To provide a semiconductor device in which an IGBT having two gate terminals is driven by one control signal, and a continuous ON state and an ON state twice for one on-pulse signal are avoided. A semiconductor device includes: a control signal input terminal; an IGBT having a first gate terminal and a second gate terminal; a delay unit configured to delay an input signal for a delay time; and a logical product unit configured to calculate a logical product of a first input terminal and a second input terminal. The control signal input terminal is connected to an input terminal of the delay unit and a second input terminal of the logical product unit. An output terminal of the delay unit is connected to the first gate terminal of the IGBT and a first input terminal of the logical product unit. An output terminal of the logical product unit is connected to the second gate terminal of the IGBT.

Abstract: Provided is a method of producing a chlorogenic acid-containing composition, including a step of subjecting coffee beans to column extraction using an aqueous solvent, in which the coffee beans include at least one selected from the group consisting of green coffee beans, decaffeinated green coffee beans, roasted coffee beans having an L value of 40 or more, and decaffeinated roasted coffee beans having an L value of 25 or more, and include at least one selected from the group consisting of unground coffee beans and ground coffee beans having an average particle size of 2.0 mm or more.

Abstract: To provide a semiconductor device in which an IGBT having two gate terminals is driven by one control signal, and a continuous ON state and an ON state twice for one on-pulse signal are avoided. A semiconductor device includes: a control signal input terminal; an IGBT having a first gate terminal and a second gate terminal; a delay unit configured to delay an input signal for a delay time; and a logical product unit configured to calculate a logical product of a first input terminal and a second input terminal. The control signal input terminal is connected to an input terminal of the delay unit and a second input terminal of the logical product unit. An output terminal of the delay unit is connected to the first gate terminal of the IGBT and a first input terminal of the logical product unit. An output terminal of the logical product unit is connected to the second gate terminal of the IGBT.

Abstract: Provided is a purified chlorogenic acid-containing composition, having: a content of a chlorogenic acid in solids of from 10 mass % to 70 mass %; a “glucose/chlorogenic acid” mass ratio of from 0.1 to 0.9; a “caffeine/chlorogenic acid” mass ratio of 0.05 or less; and a pH of from 1 to 5.

Abstract: Provided is a purified chlorogenic acid-containing composition, having: a content of a chlorogenic acid in solids of from 10 mass % to 70 mass %; a “glucose/chlorogenic acid” mass ratio of from 0.1 to 0.9; a “caffeine/chlorogenic acid” mass ratio of 0.05 or less; and a pH of from 1 to 5.

Abstract: Provided is a method of producing a chlorogenic acid-containing composition, including a step of subjecting coffee beans to column extraction using an aqueous solvent, in which the coffee beans include at least one selected from the group consisting of green coffee beans, decaffeinated green coffee beans, roasted coffee beans having an L value of 40 or more, and decaffeinated roasted coffee beans having an L value of 25 or more, and include at least one selected from the group consisting of unground coffee beans and ground coffee beans having an average particle size of 2.0 mm or more.

Abstract: Provided is a method of producing a purified chlorogenic acid-containing composition, including a contact step of bringing a chlorogenic acid-containing composition having solids concentration of from 1.5 mass % to 4.7 mass % and a “caffeine/chlorogenic acid” mass ratio of 5 or less into contact with a porous adsorbent.