受験番号：24IPC005

1.
[Claim 1]
A dental implant comprising:a jawbone embedded portion compatible with a jawbone; anda gum contact portion that is continuous with the jawbone
embedded portion, and that is to be inserted into a gum;
wherein the gum contact portion has a region to be incontact with the gum, the region being coated with a celladhesive layer containing polypeptide or protein so as not to
impair the compatibility of the jawbone embedded portion withthe jawbone.
[Claim 2]
The dental implant according to claim 1, wherein the outersurface of the cell adhesive layer has an arithmetic averageroughness Ra of 2 µm or less.
[Claim 3]
The dental implant according to claim 1 or 2, wherein theouter surface of the jawbone embedded portion to be in contact
with the jawbone is coated with an apatite layer or subjected
to alkali heat treatment.

2.
Background Art[0006]
Conventional electric double-layer capacitors have aproblem in that their capacity does not increase even byincreasing the negative electrode capacity because the positiveelectrode capacity is low.
Specifically, if a positiveelectrode collector using aluminum foil is thickly coated withactivated carbon in order to increase the capacity, the usage
rate decreases, and peeling occurs, thereby failing to increasethe capacity. Accordingly, the positive electrode capacity islower than that of the carbon-based negative electrode, which
can intercalate Li ions, and the cell energy density cannot beincreased.
[0007]
Moreover, because the potential of activated carbon is
3 V (vs Li/Li+), the cell voltage can be increased only to about
2.5 V, due to the withstand voltage of the electrolyte.
Therefore, the voltage is low, causing problems of low energy
density and low power density.

3.
For efficient oxidation treatment, it is preferable thatafter copper refining slag is inserted into a slag treatment
furnace, fuel gas, such as natural gas and/or propane gas, andoxygen gas are mixed to form a gas jet, and that this mixed gas
jet is blown into the slag using a lance. In this case, whenthe mixed gas jet is blown at a mixing rate of excess oxygen
relative to the gas composition having a perfect combustionratio, very high-temperature oxygen gas can be supplied into
the slag. For example, the temperature of combustion gas
generated by combustion of natural gas and oxygen gas at aperfect combustion ratio is about 2400°C. Therefore, when thismixed gas is put in an excess oxygen state, high-temperature
oxygen gas at around 2000°C can be obtained. As a result of
this treatment, the slag temperature increases, and the sulfide
is almost completely converted into an oxide.

4.
(Surface Energy of Imprint Mold)
First, the contact angle was measured using a “CA-S 150”
contact angle meter (produced by Kyowa Interface Science Co.,Ltd.). Specifically, the imprint mold was fixed on a horizontal
measuring stand, and liquid drops (diameter: 2 mm or less) ofa polar solvent and a non-polar solvent were each dropped using
a liquid drop regulator on a flat portion of the surface of thesurface layer of the imprint mold onto which a mastermicropattern was not transferred. The polar solvent used wasion exchanged water, and the non-polar solvent used was n-decane.
Next, an angle θ was read. The angle θ was an angle made by
the surface of the surface layer and a straight line connecting
the peak of the dropped liquid drop with a contact between thesurface of the surface layer and the edge of the liquid drop
located on the leftmost side (or the rightmost side) when theliquid drop was viewed along the surface of the surface layer.
The angle θ was measured a total of 5 times, and their averagevalue was used as the contact angle. Then, the surface (free)energy was calculated by Fowkes’ equation and Young’s equation
using this contact angle.