baber/WOPTO huggingface dataset:
Patent JP-2005169522-A (JP)
Title: Punching machine
Inventor: KANEZUKA NORIHIKO
IPC: B26D7/18
Filed: 2003-12-08
Abstract: <P>PROBLEM TO BE SOLVED: To improve quality by preventing dust from sticking to a machined workpiece.  <P>SOLUTION: A machined workpiece stocker 19 for loading the machined workpiece W is disposed outside a machining area A. An openable/closable dust removing cover 30 covering the whole surface of a stocker unit 33 is provided above the machined workpiece stocker 19. A suction duct 49 is provided above the dust removing cover 30. In conveying the machined workpiece W punched in the machining area to the machined workpiece stocker 19, electrostatic charge is eliminated by an electrostatic eliminator (an ionizer) to remove dust. Falling dust is received by the dust removing cover 30 and sucked by the suction duct 49 when the dust removing cover 30 is opened. The dust does not thereby stick to the machined workpiece W.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005169741-A (JP)
Title: Ejector pin
Inventor: MURAKI MASAAKI
IPC: B29C45/40
Filed: 2003-12-09
Abstract: <P>PROBLEM TO BE SOLVED: To provide an ejector pin 5, which is inserted in the pin hole 4a bored in a mold 1 for forming a cavity 3 so as to freely slide and has a gas venting groove 50 for discharging the gas in the cavity spirally formed to the outer peripheral surface thereof, so as to suppress the adhesion and deposition of a gas component in the gas venting groove, to peel the gas component bonded to the peripheral surface of the pin hole and to prevent scoring at the time of ejection operation.  <P>SOLUTION: The cross-sectional shape of the gas venting groove 50 has a curved line shape wherein no corner part is present in the groove and is formed so that the deepest part 51 of the groove is positioned in front of the central part in the width direction of the groove (on the side of the cavity 3). The groove becomes gradually shallow toward a rear groove shoulder part 52 from the deepest part 51 and the corner angle θr of the rear groove shoulder part 52 becomes larger than the corner angle θf (about 90°) of a front groove shoulder part 53.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005176471-A (JP)
Title: Stator of rotary electric machine
Inventor: TATEMATSU KAZUTAKA
IPC: H02K1/12
Filed: 2003-12-10
Abstract: <P>PROBLEM TO BE SOLVED: To provide a stator of rotary electric machine that can make the heat radiation of coils enhanced.  <P>SOLUTION: The stator of a rotary electric machine 100 comprising a stator and a rotor includes a stator core 108, having a plurality of slots; main coils 114, wound in the slots so that magnetic flux is produced in the radial direction of the rotary electric machine 100; and auxiliary teeth 106 and 118, that are formed by molding a metal member and installed at the coil ends of the main coils 114 with an insulating member in-between.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005176508-A (JP)
Title: Vibrating motor
Inventor: CHIBA ICHIRO
IPC: H02N2/00
Filed: 2003-12-11
Abstract: <P>PROBLEM TO BE SOLVED: To form a favorable oxide film in a short time on the surface of a friction material arranged at a friction contact part of at least either of a vibrating body and a contact body.  <P>SOLUTION: The oxide film is formed on the surface of the friction material by heating at a high temperature an iron material that is a raw material of the friction material in an atmosphere raised in oxygen partial pressure higher than that in the air.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005175223-A (JP)
Title: Etching method of silicon wafer
Inventor: NAKAMURA HIROSHIGE
IPC: H01L21/308
Filed: 2003-12-11
Abstract: <P>PROBLEM TO BE SOLVED: To enlarge the area of a diaphragm to the open area of a mask pattern when forming the diaphragm by anisotropic etching.  <P>SOLUTION: A silicon wafer (110) is used for a silicon wafer, and a water solution which consists mainly of tetramethylammonium hydride and is impregnated with silicon independently or together with oxidant is used for etchant. Preferably, pH of the water solution is in the range of 10 to 13.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005173383-A (JP)
Title: Electrostatic carrying device, developing device, process cartridge, and image forming apparatus
Inventor: KONDO NOBUAKI
IPC: G03G15/08
Filed: 2003-12-12
Abstract: <P>PROBLEM TO BE SOLVED: To solve the problem that restrictions on a manufacturing process and breakdown strength make it difficult to make electrodes minute, high-density, thin, high-output and drive them with a low voltage because at least one of common electrodes for giving a driving waveform to a plurality of carrying electrodes crosses the carrying electrodes.  <P>SOLUTION: A plurality of carrying electrodes 12a, 12b, and 12c for generating electrostatic force to move a powdery material are provided at prescribed intervals, and a second substrate 14 on which common electrodes 15a, 15b, and 15c mutually connecting carrying electrodes applying the same driving waveforms out of the plurality of carrying electrodes 12 are formed is joined on a first substrate 11 of which the surface a carrying surface 17 made of an insulating film 16 is formed on, with the insulating film 16 between them.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005168441-A (JP)
Title: Fermented alcoholic beverage
Inventor: MIYAGI TAKESHI
IPC: C12C7/04
Filed: 2003-12-12
Abstract: <P>PROBLEM TO BE SOLVED: To provide a fermented alcoholic beverage having desirable flavor, and provide a fermented malt alcoholic beverage having decreased characteristic odor of sparkling liquor (sparkling liquor odor).  <P>SOLUTION: The fermented alcoholic beverage is produced from a raw material containing blackstrap molasses or brown sugar. The fermented alcoholic beverage has a brown sugar flavor and develops desirable fragrance and taste. The sparkling liquor odor is decreased by using blackstrap molasses as the raw material of the sparkling liquor produced especially by using decreased amount of malt.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005180461-A (JP)
Title: Thermo valve
Inventor: HASHIMOTO MASAYA
IPC: F16K31/68
Filed: 2003-12-16
Abstract: <P>PROBLEM TO BE SOLVED: To reduce oil passing resistance of a thermo valve disposed in a lubricating oil circulating device of an internal combustion engine.  <P>SOLUTION: In a thermo valve 4, a cylindrical valve element 7 having an oil passing hole 5f at the bottom and a spring 8 pressing the cylindrical valve element 7 are provided in the interior of a cylindrical valve case 5 provided with a stay 5a fitted with a thermo element 6 incorporated with a thermally actuated member 6a to which a rod 6b is connected.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005177910-A (JP)
Title: Thread fastening device
Inventor: URUNO SEIICHI
IPC: B25B23/14
Filed: 2003-12-18
Abstract: <P>PROBLEM TO BE SOLVED: To allow a nut runner to freely move according to a fastening part and to stop reaction of fastening torque so as not to apply the reaction to an operator.  <P>SOLUTION: A head unit 7 for liftably supporting the nut runner 8 is connected to a slider 5 by a parallel link 6 arranged on a plane orthogonal to a spindle of the nut runner 8. The slider 5 is supported in a horizontally movable manner being guided by a slide unit 4 mounted to a truck 3 on rails 2, but fixed with respect to a rotating direction around a vertical axis. The nut runner can thereby be freely moved, and the reaction of fastening torque is transmitted to the truck 3 through the parallel link 6. Consequently, the reaction of fastening torque does not cause force in a direction to move the nut runner 8, nor is the reaction of fastening torque applied to the operator.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005180823-A (JP)
Title: Automatic ice making machine
Inventor: MORI KAZUHIRO
IPC: F25C1/22
Filed: 2003-12-19
Abstract: <P>PROBLEM TO BE SOLVED: To efficiently conduct ice making operation by preventing detachment of an ice making plate and an insulating layer, and the insulating layer and a heating means.  <P>SOLUTION: An evaporation tube 14 and electric heaters H1-HN are provided on an ice making member 11. At an ice making operation, refrigerant is circulated and supplied to the evaporation tube 14 to cool the ice making member 11, and water for ice making is supplied to the ice making member 11 to produce a lump of ice M. At an ice removing operation, the heaters H1-HN are energized to generate heat, and the lump of ice M is molten and separated from the ice making member 11. The ice making member 11 is formed by thermally crimping the metal plate 12a and the insulating layer 12b, and the insulating layer 12b and the heaters H1-HN respectively with the insulating layer 12b interposed between the metal plate 12a with the evaporation tube 14 fixed and the heaters H1-HN.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005183789-A (JP)
Title: Semiconductor device and program for supporting design thereof
Inventor: KUWABARA MAKOTO
IPC: G06F17/50
Filed: 2003-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To reduce a variation in the on-resistance of a semiconductor device to be manufactured.  <P>SOLUTION: The semiconductor device has a multi-dimensional super junction structure in a breakdown voltage securing layer, passes through a body layer in contact with the multi-dimensional super junction structure, and has a group of trench gate electrodes 42 reaching the multi-dimensional super junction structure. In the device, each trench gate electrode 42 is arranged so that the variation is minimized, when the overlapped area of the group of the trench gate electrodes 42 and an n-type column 24 varies while the formation position of the group of trench gate electrodes 42 is displaced in one direction.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004206129-A (JP)
Title: Improved method and device for audio encoding and/or decoding using time-frequency correlation
Inventor: MANU MATHEW
IPC: G10L19/02
Filed: 2003-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide an improved method for audio encoding and/or decoding using a time-frequency correlation and a device therefor.  <P>SOLUTION: Disclosed is a digital audio encoding method of generating a time-frequency band table on the basis of an input audio signal, searching the block closest to a block which is currently encoded according to the generated time-frequency band table to generate information regarding the closest block which is searched for, and generating a bit stream including the generated information regarding the closest block. As compared with an existent audio codec, a transmission bit rate is decreased without any deterioration of sound quality and the sound quality is improved without any increase in transmission bit rate.  <P>COPYRIGHT: (C)2004,JPO&NCIPI
Patent JP-2005181265-A (JP)
Title: Load measuring device for rolling bearing unit
Inventor: TAKIZAWA TAKESHI
IPC: F16C33/60
Filed: 2003-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To ensure the detection of revolving speed by both revolving speed detecting sensors 20 and 20b regardless of a change in detection clearance between the detection parts of the revolving speed detecting sensors 20a and 20b and revolving speed detecting encoders 23a and 23b based on an axial load applied in both directions, and to prevent the mutual rubbing between both the revolving speed detecting sensors 20a and 20b and both the revolving speed detecting encoders 23a and 23b.  <P>SOLUTION: In this load measuring device for rolling bearing unit, the detection clearance L<SB>A</SB>for the outer line which is narrowed in application of a large axial load is set larger than the detection clearance L<SB>B</SB>for the inner line which is narrowed in application of a small axial load, and the minimum values of both the detection clearances L<SB>A</SB>and L<SB>B</SB>are set equal to each other, so that the width of distribution between both the detection clearances is narrowed. According to this, the setting of both the detection clearances is facilitated to solve the problem.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005191606-A (JP)
Title: Image reading apparatus
Inventor: SONEOKA HIROSHI
IPC: H04N1/04
Filed: 2003-12-24
Abstract: <P>PROBLEM TO BE SOLVED: To solve the problem that it causes cost raise that a means of recognizing the presence or absence of an FBS (flat head type scanner) on a scanner substrate is formed into an exclusive identification switch in hardware, in an image reading apparatus different specifications depending on the presence or absence of the FBS.  <P>SOLUTION: A composite machine 100 provided with a first carriage 7 common between an SFS (sheet feed type scanner) and the FBS, and a reference member 17 for SFS provided on an SFS reading position Ps and capable of being read by the carriage 7. The composite machine 100 is provided with a reference member 18 for FBS provided on a position where it can be read at a position Pt for detection and having a reading waveform different from that of the reference member 17 for SFS, a driving instruction means for the first carriage 7, a comparing means for comparing the first waveform read at the SFS reading position Ps with the second waveform read after the first carriage 7 is instructed to move to the position Pt for detection, and a determining means for determining the presence or absence of the FBS on a result of comparison.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005189053-A (JP)
Title: Rotation angle sensor
Inventor: OKUYA HISAYOSHI
IPC: G01D5/245
Filed: 2003-12-25
Abstract: <P>PROBLEM TO BE SOLVED: To provide a rotation angle sensor with a holder and a yoke fixed while maintaining their cylindrical shapes.  <P>SOLUTION: This rotation angle sensor 10 is equipped with the yoke 14 made of a magnetic body and rotating in conjunction with the rotation of an object under detection, the holders 15 fixed to a cylindrical shape part 14a of the yoke 14 and equipped with a bottomed housing hole 15a having an opening part on one end, a permanent magnet 16 fixed in the housing hole 15a of the yoke 14, and a hall IC 22 provided opposite to the shape part 14a of the yoke 14 while outputting a signal corresponding to the density of magnetic flux passing therethrough. The holder 15 with the permanent magnet 16 fixed thereto is inserted into the yoke 14. Then, a lock part 15b is crimped to a part of the shape part 14a of the yoke 14, thereby fixing the holder 15 to the yoke 14. A groove 15g is formed in the lock part 15b provided like a notch, the groove 15g extending along the circumferential direction of the holder 15 while passing therethrough along the axial direction of the holder 15.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2004140870-A (JP)
Title: Mobile terminal equipment
Inventor: OKUSAKO KAZUTAKA
IPC: H04M1/725
Filed: 2003-12-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide mobile terminal equipment which saves user's labor for switching a display means to be used for watching a predetermined indication and improves operability and convenience.  <P>SOLUTION: When an opening/closing detecting part 14 detects that a mobile telephone set 100 is folded, a control part 1 outputs image data from a first memory 4 to a second display driver part 7, displays an image on a second display part 9 and turns on a second back light 11. The control part 1 validates an input of a second shutter button 13b. When the opening/closing detecting part 14 detects that the mobile telephone set 100 is not folded, on the other hand, the control part 1 outputs image data from the first memory 4 to a first display driver part 6, displays an image on a first display part 8 and turns on a first back light 10. When a switching button is operated, the display parts 8, 9 to be used as a finder are switched.  <P>COPYRIGHT: (C)2004,JPO
Patent JP-2005193414-A (JP)
Title: Combination machine
Inventor: KUWABARA TETSUYA
IPC: G06F3/12
Filed: 2003-12-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a combination machine whereby data transmission and reception of firmware via a network can be carried out simply, and the internal firmware can be rewritten easily.  <P>SOLUTION: In the case where an identifier (host name and file name) stored in an identifier storage part 10 agrees with an identifier (host name and file name) included in data from a PC 30, a control program of each of a ROM 7 of a body, a flash ROM 3a for the printer, a flash ROM 13a for NIC is rewritten with the use of data of the firmware from the PC 30 via a LAN 50. After the rewriting process of the firmware is finished, the identifier stored in the identifier storage part 10 is deleted.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005193728-A (JP)
Title: Sunlight prevention type mounting kit
Inventor: TSUCHIDA SHOGO
IPC: B60R11/02
Filed: 2003-12-30
Abstract: <P>PROBLEM TO BE SOLVED: To provide a sunlight prevention type mounting kit for an automobile which must run even in the daytime under the blazing sun, by which mounting kit, a display of an audio unit, etc. can be easily observed by preventing the glaring sunlight in the daytime in vehicles, etc. such as an automobile.  <P>SOLUTION: The sunlight prevention type mounting kit is configured as follows. When components of the audio unit (1) are changed from genuine type components of a maker to DIN (German Industrial Standards) standard components available on the market in order to grade up them, a metallic mounting kit (2) and a rubber based face panel kit (3) are required as additional components. In this case, either the metallic mounting kit (2) or the rubber based face panel kit (3) is enlarged and mounted as a component for preventing the sunlight.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2005514904-A (JP)
IPC: C12M1/34
Filed: 2002-05-29
Abstract: A multiple well plate and method for media exchange, including a body defining a plurality of cell wells each connected via a channel to one of a plurality of aspiration holes, is provided. The cell wells contain a porous, hydrophilic frit which is suspended on a ledge above a reservoir of fluid media and supports a tissue sample. The properties of the frit wick the fluid media upwards to supply the tissue sample with nutrients for growth and proliferation. Old media is aspirated from the wells by a liquid handling device which inserts a pipette tip into the aspiration holes. The pipette tip applies a suction pressure which draws the media out of the cell well, through the channel, into the aspiration hole and out through the pipette tip. New media is dispersed through the pipette tip and directly into the cell well.
Patent JP-2004535228-A (JP)
IPC: A61B17/068
Filed: 2002-06-03
Abstract: An endoscopic surgical instrument for deploying a two part fastener having a male fastener part and a female fastener part, includes a tube having a proximal end and a distal end. An end effector is coupled to said distal end of said tube and is configured to hold the male fastener part and the female fastener part in opposed relation. An actuator is coupled to said proximal end of said tube and is configured to actuate the end effector. A shearing device may be positioned proximate the end effector to shear off a tip of the male fastener part after the male and female fastener parts are moved into locking relation. In addition, the surgical instrument may include a male fastener part having a shaft with a plurality of detent positions. Further, the male fastener part may include a base and a shaft pivotally connected to the base.
Patent JP-2005515585-A (JP)
IPC: H01M8/12
Filed: 2002-06-04
Abstract: In one disclosed embodiment according to the invention, a fuel cell system for generating electrical power comprises: an open-ended tubular solid oxide fuel cell; a first fuel injector tube extending from a first fuel plenum chamber through one open end of the fuel cell; and a second fuel injector tube extending from a second fuel plenum chamber through another open end of the fuel cell; wherein the first and second fuel injector tubes form a gap within the fuel cell from which a hydrogen-containing fuel gas may flow towards the open ends of the fuel cell. Further related systems and method are also disclosed.
Patent JP-2004534832-A (JP)
IPC: A61K31/64
Filed: 2002-06-19
Abstract: The present invention relates to prompt-release oral pharmaceutical compositions containing one or more active principles solubilised, suspended or embedded in a suitably formulated amphiphilic matrix for improving in vitro and in vivo bioavailability of medicaments sparingly absorbed through the oral route and/or with problems of high variability of absorption in the gastrointestinal tract.
Patent JP-2004530721-A (JP)
Title: 徐放性医薬組成物
IPC: A61K38/00
Filed: 2002-07-01
Abstract: 多数の徐放性ミニインプラント又はペレットを含む徐放装置であって；各ミニインプラントが徐放性支持材；及び徐放性支持材内又は支持材上に担持される医薬として活性な組成物；を含み、医薬として活性な組成物が少なくとも１つの医薬として活性な成分；及びその担体、を含み、各インプラントが、選択された兆候の処置のための医薬活性成分の、既定の所望な閾値の血液レベルを個別に提供するのに不十分なサイズ及び／又は負荷量のものである、装置。
Patent JP-2004534954-A (JP)
IPC: G01N21/64
Filed: 2002-07-12
Abstract: Systems and methods are provided for taking images of a sample. The sample is placed in an imaging box comprising a moveable stage that allows images of the sample to be taken from various positions and angles within the imaging box. The images are taken by a camera and sent to a processor. Structured light images obtained from one or more views within the imaging box may be used to build a structured light representations of the sample.
Patent JP-2004538114-A (JP)
Title: 身体乾燥機を備えたシャワー室機構
IPC: A61H35/00
Filed: 2002-08-27
Abstract: シャワー室に組み込まれた乾燥システムが提供される。乾燥システムは、シャワー壁及びシャワー室に入室する為の開口部により定められたシャワー室と、水供給源よりシャワー室内の水吹出し口に水を供給する水配管システムを含み、シャワー室は更に、シャワー室の少なくとも１つの壁より、該シャワー室により定められた空間へ上記水吹出し口により送られる供給空気を含むことを特徴とする。このシステムは、また供給空気が室に送られることによりシャワー室の使用者の身体を乾燥させる供給空気の送出を制御する手段を含む。 【選択図】図１
Patent JP-2005500883-A (JP)
Title: 不正操作を証明できる、スコアの付けられたファスナーテープ
IPC: A44B19/22
Filed: 2002-08-26
Abstract: 【課題】ファスナーテープにおいて不正操作を証明できるようにすること 【解決手段】 再閉鎖可能なファスナーテープ（９２１）は第１ファスナーストリップ（９２２）と、この第１ファスナーストリップ（９２２）に再閉鎖可能な状態で嵌合するようになっている第２ファスナーストリップ（９２５）とを含む。前記第１ファスナーストリップ（９２２）と前記第２ファスナーストリップ（９２５）とをシート（９４０）が接続する。このシート（９４０）はファスナーテープがバッグによりシールされたときに不正操作を証明できるハーメチックシールを提供できるように、第１ファスナーテープ（９２２）と第２ファスナーテープ（９２５）との間に形成された孔の開けられていない引き裂きライン（９７５）を有する。 【選択図】図２５
Patent JP-2005504081-A (JP)
Title: 炎症性サイトカインの放出を阻害する化合物
IPC: A61K31/5377
Filed: 2002-09-20
Abstract: 本発明は炎症性サイトカインの細胞外放出を予防できる化合物に関し、前記化合物は全てのエナンチオマー及びジアステレオマー形態及びこれらの製薬上許容できる塩を含み、次式（Ｉ）： 【化１】     ［式中、Ｒはエーテル又はアミンを含む； Ｒ 1 は： ａ）置換もしくは非置換アリール；又は ｂ）置換もしくは非置換へテロアリール；であり、 Ｒ 2a 及びＲ 2b ユニットは、それぞれ独立して水素、エーテル、アミン、アミド、カルボキシレートであり、又は前記ユニットは二重結合、カルボニルを形成でき、又はＲ 2a 及びＲ 2b は一緒になって、４〜８個の原子を含む置換又は非置換の環を形成でき、前記環は： ｉ）炭素環式； ｉｉ）複素環式； ｉｉｉ）アリール； ｉｖ）ヘテロアリール； ｖ）二環式；及び ｖｉ）へテロ二環式、から成る群から選択される。］を有する。
Patent JP-2005506217-A (JP)
Title: 暴風雨保護用繊維強化複合被覆材
IPC: B32B5/00
Filed: 2002-10-11
Abstract: トルネードからのような風で吹き飛ばされる破片からの保護を与える建築物の一体部分として適切な複合材は、樹脂に結合された高強力繊維の布の第１の層と、合板のような構造被覆材の第２の層とを含んでなる。
Patent JP-2005506188-A (JP)
IPC: B01J37/02
Filed: 2001-10-23
Abstract: The present invention relates to a novel method of catalyst preparation and its characterisation. The present invention relates to a process for the synthesis of the acid or cationic form of heteropolyacid of Mo or W by the interaction of the cationic compound with the acidic or salt form of Mo or W and the phosphate ion of a solid such as Al, Zr, Ti, or Nb taken as support, wherein the cationic salt, or a mixture of cationic salts of the heteropolyacid is formed in situ on the surface of the support. The phosphate salt of the metal used in step (a) above can be laboratory synthesised or any commercially available phosphate salt.
Patent JP-2005506634-A (JP)
Title: 情報を処理する方法及びシステム
IPC: G10L15/26
Filed: 2002-10-16
Abstract: 電子形式で利用可能にされ、処理後に出力に対して電子形式で供給される情報の処理中に、詳細な作業ステップは、費やされた時間に関して自動的に記録され、これらの詳細な作業ステップの効率を示す効率情報は、前記費やされた時間に基づいて編集され、出力に対して供給される。
Patent JP-2005509348-A (JP)
Title: フィルタ装置およびその製造方法
IPC: H03H9/17
Filed: 2001-11-06
Abstract: 本発明は、上面および下面を有する基板と、基板の上面に接触する少なくとも1つの弾性波とを含んだ、フィルタ装置に関するものである。この基板の下面は、弾性波フィルタへの弾性波の反射を低減するために、粗くなっている。基板の下面を粗くすることにより得られた効果とは、弾性波フィルタによって生じて基板の下面に届く弾性波が、基本的には、粗くなった下面において拡散されることである。これによって、弾性波装置へ実際に反射される弾性波は、低減する。つまり、弾性波フィルタの性能特性が向上する。