Abstract: A semiconductor substrate includes a support substrate, a mask pattern located above the support substrate and including a mask portion, a seed portion locally located in a layer above the support substrate in a plan view, and a semiconductor part including a GaN-based semiconductor and located above the mask pattern to be in contact with the seed portion and the mask portion.

Abstract: A semiconductor substrate includes a heterogeneous substrate, a mask layer having an opening portion and a mask portion, a seed portion overlapping the opening portion, and a semiconductor layer including a GaN-based semiconductor and disposed on the seed portion and the mask portion. An upper surface of an effective portion of the semiconductor layer includes at least one low-level defective region with a size of 10 ?m in a first direction along a width direction of the opening portion and 10 ?m in a second direction orthogonal to the first direction, and a line defect is not measured by a CL method in the low-level defective region.

Abstract: Provided is an unprecedented chair in which a space between swinging surfaces facing each other can be appropriately hidden. The chair includes swinging surfaces (rolling surfaces) 312a and 322a facing each other, and has a configuration in which the swinging surfaces 312a and 322a swings with respect to each other in directions of 360 degrees including front-rear and left-right directions. In such a chair, an elastic member 33 is arranged to be positioned between the swinging surfaces 312a and 322a at least in the vicinity of outer peripheral edges 312z and 322z, and a stretchable sheet material 60 is provided between the outer peripheral edges 312z and 322z to conceal a gap between the swinging surfaces 312a and 322a facing each other, the gap including the elastic member 33.

Abstract: The chair has a simple structure in which a seat can follow a free movement of a seated person in front-rear, left-right, and diagonal directions, a burden from an operation by which the seated person balances his or her load can also be reduced, and a movement by which the seated person changes his or her posture stably and continuously can be suitably supported. The chair includes a movement mechanism 3 that causes an upper base unit 31 to swing in a direction of 360 degrees with respect to a lower base unit 32, and a seat 1 attached to the upper base unit 31. The chair further includes a damper mechanism DM that may operate by following a movement in a direction of 360 degrees, as a mechanism separate from the movement mechanism 3, at a position connecting the upper base unit 31 and the lower base unit 32.

Abstract: Provided is an unprecedented chair in which movement of a seat by using a rolling surface can be smoothly performed. The chair includes an upper base unit 31 and a lower base unit 32 facing each other, and a seat 1 that is provided in the upper base unit 31 and swings when the upper base unit 31 rolls with respect to the lower base unit 32, and the upper base unit 31, which is at least one of the upper base unit 31 and the lower base unit 32, includes a rolling surface 312a being curved. In the chair, a region having a different curvature exists in a part of the rolling surface 312a, and an elastic member 33 is interposed between the region having the different curvature and a corresponding region of an opposing surface.

Abstract: A chair includes a leg 1, a seat 5 including a pressure receiving surface PS, a backrest 6, and a support mechanism SM. The seat 5 can move in the front-rear or left-right direction along a predetermined trajectory and to downwardly incline a tip side of the seat 5 in a movement direction in accordance with a movement of the seat 5 from a predetermined reference position (S). The support mechanism SM includes a return-force generation unit configured to generate, in accordance with an amount of movement, a return force in a direction in which the seat 5 moved from the reference position (S) in the front-rear or left-right direction is returned to the reference position (S), and movably supports the backrest 6 in the left-right direction together with a movement of the seat 5 in the left-right direction.

Abstract: A chair includes a leg 1, a seat 5 including a pressure receiving surface PS, a backrest 6, and a support mechanism SM. The seat 5 can move in the front-rear or left-right direction along a predetermined trajectory and to downwardly incline a tip side of the seat 5 in a movement direction in accordance with a movement of the seat 5 from a predetermined reference position (S). The support mechanism SM includes a return-force generation unit configured to generate, in accordance with an amount of movement, a return force in a direction in which the seat 5 moved from the reference position (S) in the front-rear or left-right direction is returned to the reference position (S), and movably supports the backrest 6 in the left-right direction together with a movement of the seat 5 in the left-right direction.

Abstract: A chair comprises: a leg 1 erected on a floor surface; a seat 3 arranged above the leg 1; and a support mechanism 8 interposed between the leg 1 and the seat 3, wherein the support mechanism 8 is arranged below the seat 3 and is configured to movably support the seat 3 along a predetermined trajectory by having an omnidirectional connection unit 72 configured to operably connect in all directions including the front-rear direction and the left-right direction, comprises: a seat inclining function configured to downwardly incline a tip side in a movement direction of the seat 3, and further comprises: a return-force generation mechanism configured to generate, by elevating a center of gravity of the seat 3, a return force in a direction of returning the seat 3 to the reference position.

Abstract: To provide a chair in which the seated person can perceive a comfortable sitting feeling even if sitting for a long time, and furthermore, a high work efficiency can stably be maintained, a chair according to the present invention includes a leg 1 erected on a floor surface, a seat 3 supported above the leg 1 and a suspension support mechanism 5 configured to operatively support the seat 3, in a front-rear direction and in a right-left direction, along a predetermined trajectory by suspending the part of the seat 3 from a part of the leg 1, the suspension support mechanism 5 comprises a inclining function Q configured to downwardly incline the seat 3 so that a tip side in a movement direction of the seat 3 is positioned below a base end side when the seat 3 operates from a reference position_(S) at which the seat 3 can rest by its own weight.

Abstract: A chair includes: a leg 1; a seat 2; and a front-back support mechanism 4. The front-back support mechanism 4 is provided at a seat receiving part 50 directly supported by the leg 1, and the front-back support mechanism includes: a wavy plate 56 provided to horizontally extend from vertical walls 51 of the seat receiving part 50 and having mound-shaped surfaces 57, 58 each convexly curved upward; and followers 53, 54 provided at front-back support bodies 52 as supported parts and configured to move relative to the mound-shaped surfaces 57, 58 while contacting the mound-shaped surfaces 57, 58. The wavy plate 56 is associated with the followers 53, 54 such that a movement end inclines downward when the seat 2 moves from a neutral position in accordance with a relative movement between the mound-shaped surfaces 57, 58 and the followers 53, 54.

Abstract: A chair comprises: a leg 1 erected on a floor surface; a seat 3 arranged above the leg 1; and a support mechanism 8 interposed between the leg 1 and the seat 3, wherein the support mechanism 8 is arranged below the seat 3 and is configured to movably support the seat 3 along a predetermined trajectory by having an omnidirectional connection unit 72 configured to operably connect in all directions including the front-rear direction and the left-right direction, comprises: a seat inclining function configured to downwardly incline a tip side in a movement direction of the seat 3, and further comprises: a return-force generation mechanism configured to generate, by elevating a center of gravity of the seat 3, a return force in a direction of returning the seat 3 to the reference position.

Abstract: A chair includes: a leg 1; a seat 2; and a front-back support mechanism 4. The front-back support mechanism 4 is provided at a seat receiving part 50 directly supported by the leg 1, and the front-back support mechanism includes: a wavy plate 56 provided to horizontally extend from vertical walls 51 of the seat receiving part 50 and having mound-shaped surfaces 57, 58 each convexly curved upward; and followers 53, 54 provided at front-back support bodies 52 as supported parts and configured to move relative to the mound-shaped surfaces 57, 58 while contacting the mound-shaped surfaces 57, 58. The wavy plate 56 is associated with the followers 53, 54 such that a movement end inclines downward when the seat 2 moves from a neutral position in accordance with a relative movement between the mound-shaped surfaces 57, 58 and the followers 53, 54.

Abstract: A leg 1 erected on a floor surface, a seat 3 supported above the leg 1 and a suspension support mechanism 5 configured to operatively support the seat 3, in a front-rear direction and in a right-left direction, along a predetermined trajectory by suspending the part of the seat 3 from a part of the leg 1, the suspension support mechanism 5 comprises a inclining function Q configured to downwardly incline the seat 3 so that a tip side in a movement direction of the seat 3 is positioned below a base end side when the seat 3 operates from a reference position (S) at which the seat 3 can rest by its own weight.

Abstract: An object of this invention is to provide a chair comprising a simple and compact rocking mechanism and lock mechanism to lock the rocking movement.

Abstract: An object of this invention is to provide a chair having less sliding resistance, less abrasion and less noise with prevention of partially contacting each component while the chair is making a rocking movement.

Abstract: [Problems] To provide a microchip for cell sorting to obtain the desired cell from a number of cells quickly and accurately by combining the advantages from both methods using the optical tweezer and the liquid supply to the micro channel. [Means for solving problems] A microchip for sorting at least one cell including a base, the base comprising: a cell supply channel for supplying and flowing a liquid containing cells; a cell supply channel including an inlet port in liquid communication with a supply mechanism and a drain port in liquid communication with a drain mechanism; a cell sorting channel intersecting with the cell supply channel at their middle point, the cell sorting channel including an inlet port in liquid communication with a supply mechanism and a drain port in liquid communication with a drain mechanism.

Abstract: (Problems) To provide a cell fusion chip, which allows to perform a cell fusion on a single chip, excels in the operating efficiency, does not require experience so much in cell feed or recovery, and has no risk of the contamination to the cells during the operation. (Means for Solving Problems) The present invention provides a cell fusion chip comprising: an isolation chamber for receiving isolated cells to be subjected to an fusion operation; a fusion chamber for fusing the cells together supplied from the isolation chamber; a culture chamber for culturing the cells fused in the fusion chamber; a first channel for connecting the isolation chamber and the fusion chamber; and a second channel for connecting the fusion chamber and the culture chamber, wherein the isolation chamber, the fusion chamber, the culture chamber, the first channel and the second channel are formed on a single chip.

Abstract: [Problems] To provide a microchip for cell arranging which transfers and arranges the cell accurately and quickly, by combining advantages of the method of an optical tweezer and of micro channel.

Abstract: The present invention provides a cell-operating device comprising a laser light source and a microscope to observe cell sample fluorescently labeled and a camera to take the images of the cell sample that is observed with said microscope and a computer to capture the digital image data obtained by said camera and a group of mirrors comprising electronic control mirrors of which optical axis can be adjusted so that the laser light irradiated from said laser light source can be guided in to said microscope. The computer includes a binarization program for binarizing said digital image data by identifying whether each pixel of said digital image data captures a part of said cell sample according to the fluorescence luminance of each pixel.