Abstract: Provided is a battery residual value determination system capable of easily and accurately determining the residual value of a battery. The battery residual value determination system includes: a battery information reception unit that receives information on the voltage, the current, the temperature, and the period of time elapsed from the time of manufacture of a battery; a first residual value determination unit that determines a first residual value indicating the SOH of the battery; an attenuation function determination unit that determines an attenuation function which indicates a time-dependent change of the SOH specific to the battery and is used for correcting the first residual value of the battery; and a second residual value output unit that determines and outputs a second residual value obtained by correcting the first residual value by using the attenuation function according to the period of time elapsed from the time of manufacture of the battery.

Abstract: A laser-marking laminated structure has at least a base layer (2), a masking layer (3) capable of being removed by irradiation with a laser beam, and an OP layer (4) formed in that order on a support element (1). The base layer and the masking layer are colored layers having colors distinctly different from each other in lightness. The laser-marking laminated structure is irradiated with a laser beam in a desired pattern including characters to remove portions of the masking layer (3) and the OP layer (4) corresponding to the pattern so that the pattern is displayed clearly on the laser-marking laminated structure because of the contrast between the color of the base layer (2) and that of the masking layer (4).

Abstract: A laser-marking medium comprises at least a base layer and a masking layer formed on one side of a support element in the stated order. The base layer has laser light absorptivity, and the masking layer contains metal powder and a white pigment. A laser beam applied to the laser-marking medium is absorbed by the base layer having laser light absorptivity, and the base layer heats and breaks, whereby the masking layer in the laser applied region is removed, and a lightness difference is generated between a laser beam non-applied region of the masking layer and the laser beam applied region with the masking layer removed so as to make marks in the laser beam applied region distinctly visible.

Abstract: A laser-marking laminated structure has at least a base layer (2), a masking layer (3) capable of being removed by irradiation with a laser beam, and an OP layer (4) formed in that order on a support element (1). The base layer and the masking layer are colored layers having colors distinctly different from each other in lightness. The laser-marking laminated structure is irradiated with a laser beam in a desired pattern including characters to remove portions of the masking layer (3) and the OP layer (4) corresponding to the pattern so that the pattern is displayed clearly on the laser-marking laminated structure because of the contrast between the color of the base layer (2) and that of the masking layer (4).

Abstract: A container comprises a first and second wall parts to be heat bonded together along respective sealing portions from thermoplastic resin layers having a polyethylene chain, at least one wall part being a laminated structure comprising a thermoplastic resin inner wall layer with a plurality of minute holes and a paper outer wall layer which is permeable to gases but is impervious to microorganisms, at least one thermoplastic layer of a sealing portion, prior to being heat bonded, being irradiated with ionizing radiation rays to introduce thereinto a crosslinked structure. By seal packaging a medical supply commodity with this container and sterilizing the same with a gas or steam, a readily unsealable, sealed package can be produced for ready use at any time and place.