baber/WOPTO huggingface dataset:
Patent JP-2013516208-A (JP)
Title: 核磁気共鳴における局所エネルギー比吸収率（ｓａｒ）を計算するための方法
IPC: A61B5/055
Filed: 2010-12-28
Abstract: 対象のセグメント化形状の電気パラメータと質量密度、及び高周波ＲＦアンテナの磁場ベクトル分布に基づいて局所エネルギー比吸収率ＳＡＲを計算するための方法。電気パラメータと質量密度の値は所定値であるが、磁場ベクトル分布は磁気共鳴ＭＲスキャンに基づく磁場マッピング法によって推定される。磁気共鳴スキャンに基づく磁場マッピング法はＢ １ マッピング法であり得る。本発明はＳＡＲ計算が比較的短期間でなされることができる磁気共鳴システムにも関する。本発明は上記方法に従って局所エネルギー比吸収率ＳＡＲを計算するための命令を有するコンピュータプログラムにも関する。上記方法、システム及びプログラムで使用されるＳＡＲ計算は比較的短期間でなされ、そのため臨床背景において実用的である。
Patent JP-2013516171-A (JP)
Title: ソーセージ製品、ソーセージ及びソーセージ製造装置
IPC: A23L13/60
Filed: 2010-12-30
Abstract: 本発明は、共押出し法によるソーセージ製品の製造方法と装置に関し、食品生地を供給する工程、粘性の皮形成塊状物質を供給する工程、及び共押出しを使用して、皮形成塊状物質層で少なくとも部分的に被覆された食品生地の中心部を押出してソーセージストランドを生産する工程を備えている。 【選択図】  図１
Patent JP-2013516953-A (JP)
Title: Ａｃ／ｄｃ変換回路
IPC: H02M1/00
Filed: 2011-01-04
Abstract: 本発明は、N≧2個のＡＣ供給電圧Ｕ１、Ｕ２、Ｕ３をＤＣ電圧に変換するための、ＡＣ／ＤＣ変換回路１００及び方法に関する。これは、前記ＡＣ供給電圧を、フルブリッジ変換器１１、１２、１３であって、これらの変換器の第２端子ｂ１、ｂ２、ｂ３が互いに結合されるフルブリッジ変換器１１、１２、１３の第１端子ａ１、ａ２、ａ３に供給することによって、達成される。前記変換器の出力ｄ１、ｄ１'、ｄ２、ｄ２'、ｄ３、ｄ３'は、中間変換器２１、２２、２３のＤＣ端子に供給される。前記中間変換器のＡＣ端子ｅ１、ｅ１'、ｅ２、ｅ２'、ｅ３、ｅ３'は、変圧器３１、３２、３３の一次側に接続され、これらの変圧器の二次側には、更なる整流器４１、４２、４３が設けられる。この回路設計は、380Vの三相ＡＣ電流を処理するために、限られた電圧性能のＭＯＳＦＥＴを用いることを可能にし、従って、高い効率を達成する。
Patent JP-2013518667-A (JP)
Title: データ収集システム
IPC: G16H40/67
Filed: 2011-01-28
Abstract: 【解決手段】データを収集するためのデバイスは第１の電極及び第２の電極を備えている。第１の電極は対象の表面に結合されており、第２の電極は「その他の全ての箇所」又は「空気」に結合されている。第１の電極は、シールドによって第２の電極と寄生容量の大部分の源とから遮蔽されており、シールドは、第１の電極の瞬間の電位を追跡し、理想的には一致させるべくシールドを駆動する能動型のドライバによって駆動される。第２の電極は、寄生容量の大部分の源から同様の方法で同様に遮蔽されている。これらのシールドは、デバイスの電子機器からのＲＦＩが第１及び第２の電極のうちのいずれかと結合する範囲を制限するのに同様に有用である。このように、デバイスは対象の周波数帯域での信号対雑音比を著しく改善する。
Patent JP-2013520538-A (JP)
Title: 抑泡作用を有するポリマー、および分散剤としてのその使用
IPC: C09K23/44
Filed: 2011-02-15
Abstract: 本発明は、モノマー（Ａ）、（Ｂ）および（Ｄ）、および場合により（Ｃ）から誘導される構造単位を含有するポリマーであって、   （Ａ）が式（Ｉ） ［式中、   ＡはＣ ２ 〜Ｃ ４ −アルキレンを表し、   ＢはＡとは異なるＣ ２ 〜Ｃ ４ −アルキレンを表し、   Ｒは水素またはメチルを表し、   ｍは１〜５００の数を表し、   ｎは１〜５００の数を表す］ で表されるモノマーであり、   （Ｂ）が、少なくとも１つのカルボン酸官能基を含むエチレン性不飽和モノマーであり、   （Ｃ）が、場合により、（Ａ）および（Ｂ）とは異なる別のエチレン性不飽和モノマーであり、   （Ｄ）が式（ＩＩ） ［式中、   ＤはＣ ２ 〜Ｃ ４ −アルキレンを表し、   ＥはＤとは異なるＣ ２ 〜Ｃ ４ −アルキレン基を表し、   ＦはＥとは異なるＣ ２ 〜Ｃ ４ −アルキレン基を表し、   Ｒは水素またはメチルを表し、   ｏは１〜５００の数を表し、   ｐは１〜５００の数を表し、   ｑは１〜５００の数を表す］ で表されるモノマーであり、そして   モノマーの重量比が、モノマー（Ａ）が３５〜９８．５％であり、モノマー（Ｂ）が０．５〜４５％であり、モノマー（Ｃ）が０〜２０％であり、そしてモノマー（Ｄ）が１〜２０％である、 ポリマー、および無機固体懸濁液用の消泡剤としての前記ポリマーの使用に関する。
Patent JP-2013531136-A (JP)
Title: 改質ｐｖａ層を含有するセルロース繊維ベースの支持体、並びに、その製造及び使用の方法
IPC: D21H27/00
Filed: 2011-01-19
Abstract: 少なくとも一表面がヒドロキシル官能基を有する少なくとも１種の水溶性ポリマーを含有する層で被覆されており、該ヒドロキシル官能基の少なくともいくつかが少なくとも１個のビニル官能基を含有する少なくとも１種の有機分子と前もって反応しているセルロース繊維ベースの支持体であって、前記有機分子がアルデヒド官能基をも有していることを特徴とする前記の支持体。その製造方法。
Patent JP-2013520913-A (JP)
Title: アップリンク多重アンテナ伝送を支援する無線通信システムにおいてアップリンク伝送のための制御情報を提供する方法及び装置
IPC: H04J11/00
Filed: 2011-02-23
Abstract: 本発明は、無線通信システムに係り、より具体的には、アップリンク多重アンテナ伝送を支援する無線通信システムにおいてアップリンク伝送のための制御情報を提供する方法及び装置が開示される。本発明の一実施例に係るアップリンク多重アンテナ伝送をスケジューリングする方法は、アップリンク伝送の伝送ランク及びプリコーディング行列を示すプリコーディング情報を含むダウンリンク制御情報を生成すること、アップリンク伝送をスケジューリングする生成されたダウンリンク制御情報をダウンリンク制御チャネルを通じて伝送すること、及び、ダウンリンク制御情報に基づいてスケジューリングされるアップリンク伝送をアップリンクデータチャネルを通じて受信することを含み、プリコーディング情報の大きさは、多重アンテナの個数及びアップリンク伝送ランクによって選択可能なプリコーディング行列の個数に基づいて決定されるとよい。 【選択図】図１７
Patent JP-2013527139-A (JP)
Title: β−ヒドロキシアルキルアミド、その製造方法並びにその使用
IPC: C09D167/00
Filed: 2011-03-10
Abstract: 本発明は、新規のβ−ヒドロキシアルキルアミド、その製造方法並びにその使用に関する。
Patent JP-2013542546-A (JP)
Title: グラフェン／格子混成構造に基づいた透明電極
IPC: C01B31/02
Filed: 2011-03-08
Abstract: いくつかの実施形態では、本発明は、（１）格子構造と、（２）格子構造と関連付けられたグラフェン膜とを備える透明電極を提供する。追加の実施形態では、本発明の透明電極は、さらに、ガラスなどの基板を備える。本発明の追加の実施形態は、上述の透明電極を作製する方法に関する。そのような方法は、一般に、（１）格子構造を生成するステップと、（２）グラフェン膜を生成するステップと、（３）グラフェン膜を格子構造と関連付けるステップとを含む。さらなる実施形態では、本発明の方法は、また、透明電極を基板と関連付けるステップを含む。
Patent JP-2014134442-A (JP)
Title: Infrared target detection device
Inventor: FURUKAWA TSUTOMU
IPC: H04N5/225
Filed: 2013-01-10
Abstract: PROBLEM TO BE SOLVED: To obtain an infrared target detection device having a target detection performance same as a clear sky background by preventing emission of erroneous alarm even in the case of clutter background such as cloud background.SOLUTION: The infrared target detection device takes images using plural infrared image pickup units each of which has a different peak in reception wavelength with respect to identical field of view region. The infrared target detection device is configured to detect an identical target with the respective infrared image pickup units. The target is detected by using a threshold value of a binarization coefficient equivalent to a clear sky background. In this case, as for a target under a clutter background such as cloud background, compared to a clear sky background, erroneous alarm inevitably increases. The respective targets in the infrared images are subjected to an identity evaluation on the detected targets in the infrared images. The detected targets which have an identity in the shape and position in the space are determined as the proper target.
Patent JP-2014136892-A (JP)
Title: Device for protection from falling object in chimney
Inventor: KOBAYASHI MASANORI
IPC: E04H12/28
Filed: 2013-01-16
Abstract: PROBLEM TO BE SOLVED: To provide a lightweight device for protection from a falling object in a chimney which can be installed and removed in a short time.SOLUTION: A device 1 for protection from a falling object in a chimney, which is arranged inside a cylinder 3 of a chimney 2 to receive a falling object, comprises: a balloon 11 which, when air is supplied thereinto, is swollen to bring its outer periphery into close contact with an inner wall surface of the cylinder 3; and a protective sheet 12 which is mounted to at least one of the top surface and the undersurface in the horizontal direction of the balloon 11. When the balloon 11 is swollen, it is formed in a ring shape where a hole part 11a is formed in the horizontal center. The protective sheet 12 is mounted so as to close the hole part 11a.
Patent JP-2014137465-A (JP)
Title: Detachable unit, process cartridge, developing unit, and image forming apparatus
Inventor: AZEYANAGI YUTA
IPC: G03G15/08
Filed: 2013-01-16
Abstract: PROBLEM TO BE SOLVED: To make it possible to connect a detachable unit detachably attached to an apparatus body of an image forming apparatus to driving mechanisms of the apparatus body, and cool the driving mechanism on one end side of the detachable unit.SOLUTION: An imaging unit 23 (process cartridge) is detachably attached in a front-rear direction X to a body case 2 of an image forming apparatus 1, and comprises driving mechanisms of a developing device 10 as a heat generating unit to be cooled. The imaging unit 23 comprises: a male part coupling 53 that is provided to a unit rear end part 100b, and connected with a developing body driving mechanism 110 on a device body side; a unit driving mechanism 52 that is provided to the unit rear end part 100b, in a drive transmission relationship with the male part coupling 53, and drives a shaft 37a of a second stirring conveyance screw 37 and the like in the imaging unit 23; and a rear cover 45 that is provided to the unit rear end part 100b, and covers the unit driving mechanism 52 and exposes the male part coupling 53. The rear cover 45 forms developing side air channels 30 (first split air channel 30a and second split air channel 30b) that pass through the unit driving mechanism 52.
Patent JP-2014136113-A (JP)
Title: Ultraviolet ray sterilization method
Inventor: YOMOTO MIZUYO
IPC: A61L2/10
Filed: 2013-01-18
Abstract: PROBLEM TO BE SOLVED: To provide an ultraviolet ray sterilization method allowing for: sterilization of bacteria and molds with extremely low ultraviolet intensity from reduced number of installed ultraviolet lamps at a reduced initial cost for installing a sterilization unit; and reduction in radiation time even with an extremely weak ultraviolet intensity, resulting in reduction in power consumption and extension of lamp life, at a reduced operation cost.SOLUTION: The ultraviolet sterilization method allows an interior surface to be exposed to ultraviolet radiation with an ultraviolet lamp. The ultraviolet intensity is set to 0.008 to 0.170 mW/cmfor a sterilization target of bacteria such as colon bacillus and salmonella. The ultraviolet intensity is set to 0.030 to 0.170 mW/cmfor a sterilization target of sporulating bacteria such as spore bacillus cereus and spore bacillus subtilis. The ultraviolet intensity is set to 0.030 to 0.170 mW/cmand the ultraviolet irradiation time is set to 30 minutes to 280 seconds for a sterilization target of molds such as koji mold and penicillium.
Patent JP-2014139527-A (JP)
Title: Flow rate detection unit and hot water supply system
Inventor: UMETANI MASASHI
IPC: G01F1/42
Filed: 2013-01-21
Abstract: PROBLEM TO BE SOLVED: To provide a flow rate detection unit hardly affected by foreign materials and a hot water supply system.SOLUTION: A hot water supply system comprises: circulation circuits 80, 82 for circulating hot water in a bath 13; a hot water pipe 32 connected to the circulation circuits 80, 82 for supplying hot water, whose temperature is regulated, to the bath 13 through the circulation circuits 80, 82; and a differential pressure type flow rate detection unit 100 provided at a connection part between the circulation circuits 80, 82 and the hot water pipe 32. The flow rate detection unit 100 includes a first pressure receiving displacement body and a second pressure receiving displacement body. The first pressure receiving displacement body has stiffness higher than that of the second pressure receiving displacement body. The flow rate detection unit 100 detects a hot water supply amount on the basis of a position of the first pressure receiving displacement body when hot water is supplied from the hot water pipe 32 to the bath 13, while detecting the presence or absence of a circulation or a flow rate on the basis of a position of the second pressure receiving displacement body when hot water in the bath 13 is circulated in the circulation circuits 80, 82.
Patent JP-2014139644-A (JP)
Title: Exposure method, exposure apparatus, device production method and mask
Inventor: FUKUI TATSUO
IPC: G03F7/20
Filed: 2013-01-21
Abstract: PROBLEM TO BE SOLVED: To expose a pattern of a mask to a better position on a plate by using a lens array.SOLUTION: An exposure method includes the steps of: arranging a plurality of strip-like masks in a longitudinal scanning direction along a non-scanning direction, moving an irradiation optical system, a lens array, the masks and a plate relatively in the scanning direction along the masks and the plate and irradiating a pattern with irradiation light from the irradiation optical system to project the image of the pattern formed in the mask on the plate through the lens array; and modifying intervals among the masks in a non-scanning direction perpendicular to the scanning direction while moving the irradiation system, the lens array, the masks and the plate relatively in the scanning direction.
Patent JP-2014141905-A (JP)
Title: Flow rate adjusting nozzle of water turbine for hydraulic power generation
Inventor: EBARA NAOYA
IPC: F03B1/00
Filed: 2013-01-23
Abstract: PROBLEM TO BE SOLVED: To make a structure simple and reduce cost by employing a nozzle that has no movable part as flow rate adjusting means of a water turbine for hydraulic power generation.SOLUTION: A nozzle 4 is disposed detachably inside an inlet pipe 2 of a cross-flow water turbine, in which a runner 3 is disposed on a distal discharging part of the inlet pipe 2 that introduces water transmitted through a water pressure pipe path, a center shaft of the runner 3 crossing a direction of water flow. The nozzle 4 is formed to have a quadrilateral cross-section and has a discharging part that has a smaller cross-section than that of the distal discharging part of the inlet pipe 2 at its distal end. A distal end of an upper face plate of the nozzle 4 is longer then a distal end of a lower face plate thereof so that the upper face plate extends to the vicinity of an outer circumference of the runner 3. Also, with the extending part of the upper face plate bended toward a direction away from the runner 3 to increase the area in which vanes of the runner 3 receive water, efficiency of the water turbine is further improved.
Patent JP-2013138012-A (JP)
Title: Lithium secondary battery and battery pack formed by connecting lithium secondary batteries together
Inventor: NAKAJIMA TAKAYUKI
IPC: H01M10/625
Filed: 2013-01-28
Abstract: PROBLEM TO BE SOLVED: To provide a lithium secondary battery which has high capacity, excellent service life, high output, and high safety with little gas generation even when enlarged.SOLUTION: The lithium secondary battery uses a nonaqueous electrolyte containing compounds of general formulae (2) and (3), a compound having an S-F bond, nitrate, nitrite, monofluorophosphate, acetate, and/or propionate. [In the general formula (2), Rto Rare each an organic group having 1-12 carbon atoms, x is an integer of 1-3, p, q, and r are each an integer of 0-3, and 1≤p+q+r≤3 is satisfied. In the general formula (3), Rto Rare each an organic group having 1-12 carbon atoms, and A is a group composed of H, C, N, O, F, S, Si, and/or P.]
Patent JP-2014144786-A (JP)
Title: Partition assembly
Inventor: NAKAO SHINJI
IPC: B65D25/04
Filed: 2013-01-28
Abstract: PROBLEM TO BE SOLVED: To prevent a partition board from dropping in a partition assembly which has a construction where one or a plurality of first partition boards 3 and one or a plurality of second partition boards 4 are mutually combined into a grid shape.SOLUTION: In a partition assembly of the invention, a first partition board 3 and a second partition board 4 comprise plate-shaped plates 31, 41 respectively. The plates 31, 41 of both of the partition boards 3, 4 respectively comprise at least one cut part on the plate in longitudinal direction. The cut parts of both of the partition boards 3, 4 are engaged each other. Herein, the cut part of the first partition board 3 comprises a cut opening 32 which opens to one side end of the plate 31 in an approximate V-shape and a cut continuous to the cut opening 32. The cut comprises: a first cutting part 35 which extends from the deepest position of the cut opening 32 in the direction orthogonal to the longitudinal direction of the plate 31; and a second cutting part 36 which extends from the deepest position of the first cutting part 35 in the longitudinal direction of the plate 31.
Patent JP-2014146687-A (JP)
Title: Flip chip type semiconductor element, semiconductor device and method for manufacturing the same
Inventor: KAZAMA TAKUYA
IPC: H01L23/12
Filed: 2013-01-29
Abstract: PROBLEM TO BE SOLVED: To provide a flip chip type semiconductor element improved in adhesion and heat dissipation after being mounted and useful for improvement in mounting reliability.SOLUTION: A stripe-shaped V groove 8-1 having a width of about 2 μm and a depth of about 1 μm is formed on a p-side electrode 5 and an n-side electrode 6 of a flip chip type semiconductor light emitting element. The stripe-shaped V groove 8-1 is arranged in a stripe shape in parallel with the transverse direction of the semiconductor light emitting element. The number of the stripe-shaped V groove 8-1 may be any one of a singular number or a plural number. An arrow indicates a filling direction of an underfill material, in this case the transverse direction of the semiconductor light emitting element. After the face-down mounting of the semiconductor light emitting element on a mounting board, the underfill material is filled through a capillary phenomenon by the stripe-shaped V groove 8-1.
Patent JP-2014144588-A (JP)
Title: Ink jet printer
Inventor: YOSHIZAWA TAKANORI
IPC: B41J2/01
Filed: 2013-01-29
Abstract: PROBLEM TO BE SOLVED: To solve such a problem that in a conventional ink jet printer including air suction means for taking in outside air, a heated recording medium is rapidly cooled by an air flow, and uneven cooling of the heated recording medium arises, which become a factor for worsening image quality, and that it is difficult to efficiently cool the inside of a carriage.SOLUTION: There is provided an ink jet printer which includes both of a constitution in which the outside air taken into a device can be sucked to the inside of a carriage directly and a constitution in which the outside air sucked does not flow the carriage inside, so that the ink jet printer can effectively lower the temperature inside the carriage. The ink jet printer further includes on both sides of a housing, exhausting mechanisms for exhausting air, the one of the air exhausting mechanisms provided on the side surface of the housing and the other provided on the rear surface, so that exhausting unevenness between the right and the left of the housing can be suppressed.
Patent JP-2014144448-A (JP)
Title: Method for producing separation membrane
Inventor: MATSUYAMA HIDETO
IPC: B01D69/12
Filed: 2013-01-30
Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a new separation membrane capable of easily controlling the structure and function of a separation layer.SOLUTION: A method for producing a separation membrane has a step to laminate a positively-charged inorganic particle and a negatively-charged inorganic particle on a support base material by alternatively immersing the support base material in a solution containing the positively-charged inorganic particle and a solution containing the negatively-charged inorganic particle. Preferably, the positively-charged inorganic particle is obtained by reducing a metal ion under the existence of a cationic stabilizer and the negatively-charged inorganic particle is obtained by reducing a metal ion under the existence of an anionic stabilizer.
Patent JP-2014148270-A (JP)
Title: Seat belt device
Inventor: MAEMURA EIJI
IPC: B60R22/26
Filed: 2013-02-01
Abstract: PROBLEM TO BE SOLVED: To provide a seat belt device which prevents a webbing from twisting during the operation of a reacher.SOLUTION: A seat belt device 100 includes: a retractor 114 which retracts one end 112 of a webbing 110 hung in a vertical direction at a passenger compartment thereby applying tensile force to the webbing; and a long reacher 118 which has a base end part 118b which is rotatably supported by a lower part of the passenger compartment and tilts to a vehicle fore-and-aft direction with an area near the base end part set as the center. The reacher includes a rotation support part 120, which holds the other end 116 of the webbing so that the other end may rotate in the vehicle fore-and-aft direction relative to the reacher, at its tip 118a.
Patent JP-2013126557-A (JP)
Title: Sustained drug-releasing stent
Inventor: KOMURA IKUO
IPC: A61P9/14
Filed: 2013-02-07
Abstract: PROBLEM TO BE SOLVED: To provide a stent carrying a vascular intimal hyperplasia inhibitor which does not inhibit proliferation of endothelial cells, which stent is capable of releasing the drug in controlled manner.SOLUTION: The stent includes: a stent body of a cylindrical configuration having surfaces without a diamond-like thin film coated on the surfaces; a first coated layer coating at least the outer surface of the stent body; and a second coated layer coating substantially completely over the first coated layer. The first coated layer is prepared of a first composition comprising a polymer and a vascular intimal hyperplasia inhibitor which does not inhibit proliferation of endothelial cells, the weight compositional ratio of the polymer to the vascular intimal hyperplasia inhibitor is within the range of 8:2 to 3:7. The second coated layer is prepared of a polymer alone or a second composition comprising a polymer and a drug, the weight compositional ratio of the drug is less than 20 wt.%.
Patent JP-2014158075-A (JP)
Title: Parameter acquisition device, parameter acquisition method, and program
Inventor: FUJIOKA MINORU
IPC: H04N7/18
Filed: 2013-02-14
Abstract: PROBLEM TO BE SOLVED: To acquire a parameter of high accuracy while considering vibration of a vehicle.SOLUTION: In an onboard device, a parameter outputting section performs parameter outputting processing in which an installation parameter concerning installation of a camera is outputted on the basis of a photographed image obtained with the camera equipped with a vehicle (Step S13). A vibration determination section determines presence/absence of vibration of the vehicle when performing the parameter outputting processing (Step S14). A storage section stores the installation parameter outputted in the parameter outputting processing in which the vibration determination section determines that vibration of the vehicle is not present (Step S16). Therefore, the parameter of high accuracy can be acquired while considering vibration of the vehicle.
Patent JP-2014157885-A (JP)
Title: Semiconductor substrate, image pickup element and image pickup apparatus
Inventor: TAKAZAWA NAOHIRO
IPC: H04N5/369
Filed: 2013-02-14
Abstract: PROBLEM TO BE SOLVED: To enable prevention of deterioration in detection accuracy of an alignment mark and inhibition of increase in area of a chip and a scribe line in a semiconductor substrate.SOLUTION: A solid-state image pickup element 3 comprises: an alignment mark 14 which is formed from a material reflecting detection light Lfor position detection and has detection edge parts 14a and 14b; a light-shielding layer part 15 which has an outer shape larger than the alignment mark 14 and which is formed from a material shielding the detection light Land arranged at a position behind the alignment mark 14 when viewed from an incident side of the detection light L; and an interlayer oxide film 18 which is laminated between the alignment mark 14 and the light-shielding layer part 15 and transmits the detection light L, and which is one and more translucent layers not being subjected to patterning at least in a range which overlaps the light-shielding layer part 15.
Patent JP-2014147655-A (JP)
Title: Toilet protector
Inventor: INOUE YASUO
IPC: A61G7/02
Filed: 2013-01-31
Abstract: PROBLEM TO BE SOLVED: To provide an elevated-type bed hip seat automatic opening/closing door expansion device allowing a bedridden patient who cannot go to toilet because of weakened leg muscles to relieve nature by himself/herself without asking for help of a care giver.SOLUTION: An elevated-type bed hip seat automatic opening/closing door expansion device includes a set of a mattress, an elevated bed provided with an opening/closing door horizontally opening and closing, and a seat bedpan equipped between the opening/closing door and a floor. The size of the opening/closing door is made slightly larger than the seat bedpan, and the position of the opening/closing door is set as the position of a hip when a person lies on his/her back on the elevated bed. A user opens the opening/closing door slightly larger than the seat bedpan by operating an opening/closing switch of the opening/closing door, sits on the seat bedpan installed directly below to relieve nature, and after relieving nature, closes the opening/closing door by operating again the opening/closing switch.