baber/WOPTO huggingface dataset:
Patent JP-2006173487-A (JP)
Title: Imaging device
Inventor: WADA TOSHIO
IPC: H04N5/335
Filed: 2004-12-17
Abstract: <P>PROBLEM TO BE SOLVED: To provide an imaging device which can be reduced in dark current.  <P>SOLUTION: In the peripheral region of a photodiode PD, a guard band region 34 is so formed as to cover the side face of an N-type diffusion layer 33 which constitutes the photodiode PD. The guard band region 34 has the same conductivity type (N-type) as that of the N-type diffusion layer 33 which constitutes the photodiode PD, and has a dopant concentration lower than that of the N-type diffusion layer 33. With the guard band region 34 relaxing the concentration gradient in the lateral direction between the N-type diffusion layer 33 and a P-type epitaxial layer 32, a depletion layer formed in a PN junction portion expands in width due to the existence of the guard band region 34, and a substantial distance (width of the depletion layer) between the N-type diffusion layer 33 and the P-type epitaxial layer 32 becomes longer compared with the (conventional) case that there is no guard band region 34.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006173536-A (JP)
Title: Surface-mounted led and its manufacturing method
Inventor: OKIMURA KATSUYUKI
IPC: H01L33/54
Filed: 2004-12-20
Abstract: <P>PROBLEM TO BE SOLVED: To easily and securely prevent resin charged in a mounting space for an LED from flowing out.  <P>SOLUTION: When a surface-mounted LED such that an LED is mounted in a recessed part formed on a substrate and the recessed part where the LED is mounted is charged with light-transmissive resin is manufactured, LEDs 5 are mounted in a plurality of spaces 22 partitioned on a wafer 21 with partition walls 20 and after end surfaces 23 of the partition plates 20 are coated with fluorocarbon resin 12 having smaller than interfacial tension than the light-transmissive resin, the light-transmissive resin is charged in the spaces 22.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2005201444-A (JP)
Title: Contamination control device, contamination control system and contamination control method of clean room
Inventor: LIM CHANG-SU
IPC: H01L21/02
Filed: 2004-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a contamination control device for preventing diffusion of contaminants leaking from a connecting part provided in a pipeline for transporting process gas or chemical, a contamination control system including the contamination control device, and a contamination control method of a clean room using the contamination control device.  <P>SOLUTION: This contamination control device 100 includes: a cover 106 disposed to surround the respective connecting parts 104 for preventing diffusion of contaminants; an inflow port 108 for supplying outside air to a space 106c among the cover 106 and the pipeline 102a, 102b; and an outflow port 110 for discharging mixed gas of the air supplied to the space 106c and the contaminants. The mixed gas is discharged through a connecting pipe 114 connecting the outflow port 110 and an exhaust duct 40, whereby contamination of work environment due to the contaminants can be prevented.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2006179687-A (JP)
Title: Tray for sheet transfer and transfer system
Inventor: TAWARA RYOSUKE
IPC: B65G49/06
Filed: 2004-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a tray for sheet transfer which can be transferred or placed in a state of being stacked compact when it is vacant not being mounted with a plate-like work, and to provide a transfer system wherein the trays for sheet transfer can be stacked in a different manner when they are mounted with plate-like works and when they are vacant, and they can be stacked compact when they are vacant.  <P>SOLUTION: The tray 1 to be mounted with a plate-like work is formed with two kinds of bearing portions 3 and 4 having a different height as bearers to place another tray on at the time of stacking another tray on the tray 1. The transfer system using the tray 1 for sheet transfer transfers the trays 1 by stacking them on the higher bearing portions 3 when the trays 1 are mounted with the plate-like works while stacking them on the lower bearing portions 3 when the trays 1 are not mounted with the plate-like works.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006180246-A (JP)
Title: Ip packet processor
Inventor: NOGUCHI HIROYUKI
IPC: H04L29/06
Filed: 2004-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To constitute a communication control section which operates in compliance with IPv6 as hardware and to realize high-speed communication which is not influenced by the processing capability of a CPU.  <P>SOLUTION: A plurality of interface sections 30-1 to 30-n and 31 receive packet data from a CPU 11 or network and copy them to a memory 23 for transmission and reception. Packet data read out of the memory 23 for transmission and reception are transferred among a plurality of buffers 24, 25, and 26 one after another and copied from the processing buffer 26 to the memory 23 for transmission and reception. A stage of processing the received packets is divided into a plurality of actions, processing contents of the respective actions determined by packets are hardware-processed by action designation generating circuits 102-1 to 102-n and action circuits 103-1 to 103-n in order, and the packet data are transferred among the buffers 24, 25, and 26 to move from RX BUF to TX BUF in one direction.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006176009-A (JP)
Title: Door pull finisher mounting structure in door trim
Inventor: OGURA TOSHIHIDE
IPC: B60N3/00
Filed: 2004-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To set a flange width to be narrow without exposure of a surface end to improve appearance, and to eliminate a nonwoven fabric tape for preventing low grade noise thereby to reduce cost, in a door pull finisher mounting structure in a door trim.  <P>SOLUTION: A slit 25 processing is performed for a surface 22 of an opening 60 for mounting a door pull finisher 40, or perforation processing is performed to form a hole smaller than a resin core member 21, and redundant margin 24 hanging down along an opening circumference 21a of the resin core member 21 is set and the door pull finisher 40 is mounted in a state where the hanging-processing is performed for the redundant margin 24, so that the width d of the opening circumference 42 is set to be narrow. Further, by inserting the redundant margin 24a is inserted between the door pull finisher 40 and a bracket 50 for a door pull, so that the conventional nonwoven fabric tape for preventing the low grade noise is eliminated.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006180260-A (JP)
Title: Image reader, image reading method, program making computer implement the method, and image forming apparatus
Inventor: TAGUCHI KAZUE
IPC: H04N1/19
Filed: 2004-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image forming apparatus capable of reading an image of high picture quality.  <P>SOLUTION: In the image reader, a system control unit 1 includes an SSCG section 140 which generates a spectrum spread clock and a timing circuit 112 which generates a reference clock to control the SSCG section 140. A read unit 2 includes a CCD 111 which converts the light image of a document into an electric signal, an A-D conversion section 119 which converts the analog information of the electric signal acquired by the CCD 111 into digital information, and a pulse motor 108 which moves the CCD 111 and an optical system in a vertical scanning direction. The pulse motor 108 is driven by a reference clock generated by the timing circuit 112 and the CCD 111 and the A-D conversion section 119 are driven by a spectrum spread clock generated by the SSCG section 140.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006176680-A (JP)
Title: Heat-resistant flame-retardant resin composition and insulated wire
Inventor: HIDA HIROSHI
IPC: H01B7/295
Filed: 2004-12-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a heat-resistant flame-retardant resin composition used for an insulated wire for electronic equipment and required to have characteristics, such as heat resistance, flexibility, flame retardancy, and dielectric strength, higher than ever.  <P>SOLUTION: This heat-resistant flame-retardant resin composition comprises a base resin in an amount of 100 pts.wt, a halogen-based flame retardant in an amount of 60-100 pts.wt, an inorganic flame retardant in an amount of 15-25 pts.wt, an antioxidant in an amount of 6-15 pts.wt, and a crosslinking auxiliary agent in an amount of 3-8 pts.wt. and is crosslinked by irradiation with an electron beam, wherein the base resin is formed by together mixing a low-density polyethylene, a linear low-density polyethylene, and a styrene-based thermoplastic elastomer in ranges of 50-60 pts.wt., 25-35 pts.wt., and 10-20 pts.wt., respectively. Thus, the composition acquires the characteristics, such as the heat resistance, the flexibility, the flame retardancy, and the dielectric strength, higher than ever.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006182471-A (JP)
Title: Material management system, method, program, recording medium storing the program, and material storage body
Inventor: NAGATOMO HIDEO
IPC: B65G1/137
Filed: 2004-12-27
Abstract: <P>PROBLEM TO BE SOLVED: To prevent accident/trouble in management of a material such as medicine and cope with recording and reporting of storage management in the material such as medicine simply and accurately.  <P>SOLUTION: This material management system has a function for certifying a person himself/herself, a function for recognizing taking-out or return of the material when confirming the person himself/herself as a result of certification of the person himself/herself, a function for recognizing the taken-out material when the material is taken out and recording the taken-out material, the person who takes out the material by recognizing the person confirmed as the person himself/herself as the person who takes out the material, and date of taking-out, and a function for recognizing the returned material when the material is returned and recording the taken-out material, the person who returns the material by recognizing the person confirmed as the person himself/herself as the person who returns the material, and date of return.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006181988-A (JP)
Title: Printing apparatus
Inventor: ISHII HIDEKAZU
IPC: B41J29/00
Filed: 2004-12-28
Abstract: <P>PROBLEM TO BE SOLVED: To realize a printing apparatus with which a copy print mode can be readily set.  <P>SOLUTION: In a printing process of a label printer, merely by keeping pressing down a print key for a predetermined time or more (sustained pressing) (S26:YES), a transition to the copy print mode can be made, and the number of printing set sheets can be counted up one by one (S27). Merely by canceling the state of keeping pressing down the print key for a predetermined time or more (sustained pressing) (S28: NO), the count-up of the number of printing set sheets is cancelled, a printing operation is started (S31), and, the printing is finished when the number of printed sheets is same as the number of the printing set sheets (S32).  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006161521-A (JP)
Title: Device for removing clogged substance at suction opening in one step
Inventor: YOSHIOKA TAKESHI
IPC: F04D7/04
Filed: 2004-12-02
Abstract: <P>PROBLEM TO BE SOLVED: To provide the technology of completing the greatest defect "elimination work of a clogged substance" for a very short period of time.  <P>SOLUTION: The suction force of a suction opening 3 is switched to a temporary suction opening 5 with lever control while monitoring the underwater with a monitoring device without stopping the operation of a pump (suction work). Thus, after extruding and removing the clogged substance forcibly by destroying the suction force of the suction opening 3, restoration from the temporary suction opening 5 to the suction opening 3 is performed automatically, and the device for removing the clogged substance in one step at the suction opening returns to normal underwater suction work. Thus, the device for removing the clogged substance completes all the work of removing the clogged substance almost instantaneously, and improves the efficiency of work.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2005525226-A (JP)
Title: 水処理システム及び方法
IPC: B01D19/00
Filed: 2003-04-15
Abstract: 本発明は、腐食の抑制を提供すると同時に、船舶により水を処理することを可能にするシステム及び方法を提供する。酸素ストリッピングガスは、好ましいが随意的にはベンチュリインジェクタへ直接的に送り込んでよく、或いは最初に空のタンクへ送り込み、その後、インジェクタ手段へ伝達してよい酸素ストリッピングガスを生成する。移送パイプ手段を介して、インジェクタを通じて送り込まれた水は、酸素ストリッピングガスと接触し、水中の溶存酸素は、インジェクタによって生成される微細気泡へ移動する。水及び微細気泡は、インジェクタからタンクへ送り込まれ、微細気泡は表面へ浮揚し、酸素はタンクの頭隙に放出される。脱酸素化水は、追加的な脱酸素化用のシステムを通じて再循環させてよく、或いは、タンクから周囲の水路へ放出してよい。
Patent JP-2005532335-A (JP)
Title: 骨原性タンパク質を送達するための注入可能な固体ヒアルロン酸キャリア
IPC: A61P19/00
Filed: 2003-05-12
Abstract: 骨原性タンパク質の送達のための、注入可能または移植可能な棒状処方物が開示される。この処方物は、ヒアルロン酸誘導体および骨原性タンパク質、ならびに必要に応じて賦形剤および活性成分（例えば、骨吸収阻害剤）を含む。注入可能な棒状の薬学的組成物を製造する方法および骨原性組成物を用いて、骨粗鬆症および／または骨減少性の骨を処置する方法もまた開示される。１つの実施形態において、骨原性タンパク質およびヒアルロン酸エステルを含む、骨原性タンパク質の注入可能な送達のための組成物であって、該組成物は、固形状態で身体に注入または移植するのに適切な円筒状の棒の形態である、組成物が提供される。
Patent JP-2005529248-A (JP)
Title: 光と深みの幻影を生じさせる非対称にシェードが付けられたカーペットタイル及びカーペットタイルの施工
IPC: D06N7/04
Filed: 2003-06-05
Abstract: 床材の表面上に相互に隣接して位置決めされて、床から光が発している外観または深みの幻影を生じることができるカーペットタイル。本発明の特性を有する床材は、モジュール上で、一方の縁から対向する縁にタイルを横切って、非常に暗い色から非常に明るい色へと色が分布されている、直線辺の床材モジュールを製造することによって達成される。糸のタフトが一定の色及び濃さの「背景」をもたらし、このタイルのより長い方の寸法に沿った濃さは、タイルの一方の側に沿った非常に暗い色から他方の側に沿った非常に明るい色へとタイルを横切って移り変わる。暗いタイル縁と明るいタイル縁との間には、暗い色から始まって明るい色へと移り変わる色の中間領域がある。中間領域における色の濃さは、明るい色のタイル縁の濃さがより大きくなるように、暗い色域と明るい色域との間で鮮やかな色から相対的に弱められた色へと移り変わることが好ましく、そしてそれゆえに明るい色が、カーペットタイル上においてその明るい色に隣接する色よりも、カーペットタイル上で顕著となる。これにより、カーペットタイル上で明るい色の縁が「際立つ」こととなり、特に明るい色の縁が暗い色の縁に隣接して位置決めされるときに、本発明によって生み出される幻影に貢献するものである。
Patent JP-2005532094-A (JP)
Title: 人工角膜
IPC: A61L27/56
Filed: 2003-06-18
Abstract: 本発明は、人工角膜としての使用に適したインプラント及びその製造方法並びに使用方法を提供する。本発明による人工角膜は２相人工角膜または３相人工角膜であり得る。これらの人工角膜は、柔軟で光学的に透明な中心コア部と親水性で多孔性のスカート部とを有し、両部分は何れも生体適合性で、組織と一体化可能である。３相人工角膜はさらにコア部とスカート部との間に中間領域を有する。該人工角膜は高水準のオキュラートレランスを有し、スカート部と組織との一体化や、その表面上で上皮組織の増殖が可能である。このように生体適合性の材料を用いることによって、角膜移植に伴う疾病伝染のリスクが回避され、術後の炎症が最小限ですみ、合成角膜をホストの眼球に移植した後の組織壊死の発生頻度や重症度が低く抑えられる。
Patent JP-2005532000-A (JP)
IPC: H03D7/16
Filed: 2003-06-27
Abstract: A tuning arrangement with a polyphase low IF mixer, a polyphase low IF filter and a polyphase group delay equalizer. The polyphase group delay equalizer has only one or more pole-zero pairs in the upper half of the complex frequency plane representing the transfer function of the equalizer.
Patent JP-2005533837-A (JP)
IPC: A01N43/32
Filed: 2003-06-30
Abstract: Fungicidal mixtures, comprising A) at least one valinamide derivative of the formula I in which R is halogen, and B) the compound of the formula II in a synergistically effective amount, methods for controlling harmful fungi using mixtures of the compounds I and II and the use of the compounds I and II for preparing such mixtures are described.
Patent JP-2005533728-A (JP)
IPC: B65D5/74
Filed: 2003-07-14
Abstract: A container ( 1 ) for food products is fashioned in such a way that there are no interstitial spaces or stagnation traps on the inside. The bottom end ( 8 ) of the container is fashioned by bending and flattening one end portion ( 7 ) of a tubular blank in such a way as to produce two triangular stiffening folds ( 10 ) of double thickness, each penetrable along one open side coinciding with the base ( 10 a) of the triangle; before the folds ( 10 ) are turned inward, the open sides are sealed by bonding the two triangular thicknesses together along the base ( 10 a) so that the folds remain isolated from the inside of the container ( 1 ).
Patent JP-2005537433-A (JP)
IPC: F02G1/04
Filed: 2003-08-20
Abstract: A thermodynamic force amplifying machine that causes a liquid working medium to perform useful work in a three-stroke working cycle (isochoric heating, isothermal expansion, contraction through regenerative cooling) making use of an external heat source and of an external cold source. The work performed by the auxiliary drive ( 12 ) at the displacer ( 11 ) is thereby much smaller than the one produced in the conversion system ( 18, 19 ) (force amplification). An inversely operating machine driven by an external power source acts as a heat pump/refrigerator.
Patent JP-2005535907-A (JP)
IPC: B60B7/18
Filed: 2003-08-04
Abstract: Retaining device for a wheel-alignment analyzer for attachment to a wheel of a motor vehicle. Retaining device has a retaining element having at least three retaining arms and a clamping mechanism which can be displaced along the retaining arms. The ends of the clamping mechanism are provided with an overlapping portion for overlapping the edge of the rim and the retaining element can be secured to the edge of the rim. The retaining device offers a stable engagement and centering solution, thus permitting a correct wheel-alignment analysis. The overlapping portion may be spring-loaded and biased in the direction of the wheel and/or the clamping mechanism, and a spacer and the overlapping portion may be provided on the spacer.
Patent JP-2006511100-A (JP)
IPC: H04M1/72406
Filed: 2003-09-22
Abstract: Method and system for extending and/or modifying functionality of a platform for a product, such as a mobile terminal for a wireless telecommunications system. The system includes a platform domain having a software services component for providing functionality, and an interface component having at least one interface for providing access to the software services component for enabling application software to be installed, loaded and run in said platform via the at least one interface. The system also includes plug-­in software for use together with the application software for extending and/or modifying the functionality of the software services component of the platform domain via the at least one interface.
Patent JP-2006500891-A (JP)
Title: 適応性制御回路
IPC: H05B41/298
Filed: 2003-09-19
Abstract: 電子バラストは、ハーフ・ブリッジにおける過電流保護及びハード・スイッチングのための欠陥検出及び安全特徴を提供する。電圧制御発振器は、動作フィードバック・パラメータに基づいて変更可能である切換え周波数を供給する。フィードバック回路は、負荷電流及び出力電圧を感知して、欠陥状態を決定し、かつ電圧制御発振器の周波数を適応的に調整するための制御情報を提供する。電圧制御発振器の出力を適切に制御することにより、電子バラストは、最小電流切換えでのゼロ・ボルト切換えを維持して、効率的かつ確固たる電子バラスト制御を達成する。全制御は、単一の集積回路上に一体化される。
Patent JP-2006505887-A (JP)
Title: トラッキング極性情報が記録された光ディスク、その記録装置と記録方法及びその再生装置と再生方法
IPC: G11B7/00
Filed: 2003-10-27
Abstract: トラッキング極性情報が記録された光ディスク、その記録装置と記録方法及びその再生装置と再生方法を提供する。   本発明による光ディスクは、クランピング領域、リードイン領域、データ領域及び前記クランピング領域と前記リードイン領域との間に配置されて、前記データ領域についてのトラッキングを行う前に読み込むためのディスク関連情報が記録されたＢＣＡが設けられていることを特徴とする。これにより、トラッキング極性情報及び／または反射率情報を得るための試行錯誤を行わず、直ちにデータ領域に／からユーザーデータを記録／再生できる。
Patent JP-2006511050-A (JP)
IPC: G02B6/00
Filed: 2003-12-01
Abstract: To provide an assistant light source and a front-light emitting light to the light guide plate efficiently. A sectional shape of prism 14 a in the center of light stick is isosceles triangle having a tip angle (T°) of 100° and a tilt angle (a<SUB>1</SUB>) of 40°. The depth of the prism 14 a is D<SUB>1 </SUB>mum. A sectional shape of prism 14 b in a ¼ position from an end of light stick is triangle having a tip angle (T°) of 100° and a tilt angle (a<SUB>2</SUB>) of 34.8°. The depth of the prism 14 b is D<SUB>2 </SUB>mum. A sectional shape of prism 14 c in an end of light stick is triangle having a tip angle (T°) of 100° and a tilt angle (a<SUB>3</SUB>) of 24.05°. The depth of the prism 14 c is D<SUB>3 </SUB>mum.
Patent JP-2006512483-A (JP)
Title: 薄層状の化合物ｉ−ｉｉｉ−ｖｉ２の生産用電解浴の再生方法
IPC: C25D21/18
Filed: 2003-12-05
Abstract: 本発明は、セレンをＳｅ（ＩＶ）の形に再生し、かつ／または酸素化水の添加により浴中のセレンを再酸化してＳｅ（ＩＶ）の形にする、薄層状のＩ−ＩＩＩ−ＶＩ Y 化合物（ｙは２に近く、ＶＩはセレンを含む元素である）の製造のための電解浴の再生に関する。
Patent JP-2005166254-A (JP)
Title: Information recording device
Inventor: TERAO MOTOYASU
IPC: G11B7/24035
Filed: 2005-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To attain high speed recording and high density recording in an information recording medium, an information recording method and an information recording device wherein information is recorded and reproduced by using light.  <P>SOLUTION: Voltage is applied to a recording layer between a pair of electrodes. The interval between the two electrodes sandwiching the recording layer is made wide at one of a land part of an optical disk and a groove part of the recording layer and narrow at the other, or light absorption is made to be generated only at one of the land part and the groove part. A layer whose absorption spectrum is changed by voltage application and which absorbs light is provided as the recording layer itself or an another layer adjacent to the recording layer. Since the range where heat is generated when recording is performed is narrow, the recording layer is tolerant of the gap between automatic focusing and tracking, high speed rotation is made possible, and high speed recording and high density recording are implemented. A multilayered structure is formed, and selection of the layers is easily performed.  <P>COPYRIGHT: (C)2005,JPO&NCIPI
Patent JP-2006196481-A (JP)
Title: Electronic circuit unit
Inventor: YAMADA TAKASHI
IPC: H05K3/34
Filed: 2005-01-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide an electronic circuit unit where a component can easily be removed at the time of discarding it.  <P>SOLUTION: The electronic circuit unit is provided with a printed board, the component having a lead soldered to the printed board, a through hole for fixing the component onto the printed board and a conductive printed wiring pattern formed at a periphery of the through hole for soldering. The lead is soldered to the printed wiring pattern by making it pass through the through hole. Only a part of the printed wiring pattern can be soldered to the periphery of the through hole and directions of printed wiring pattern parts that can be soldered are matched in the same components.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006194976-A (JP)
Title: Objective lens
Inventor: SUENAGA YUTAKA
IPC: G02B21/02
Filed: 2005-01-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide an objective lens securing telecentricity on an object side without making its effective diameter large even in the case of combining it with an optical system inside which a pupil position exists such as the variable power system (for example, a zoom system) of a stereoscopic microscope.  <P>SOLUTION: The infinity correction type objective lens 10 is equipped with: first optical systems G1 and G2 forming the intermediate image of an object 10A, and a second optical system G3 relaying the intermediate image. The rear side focal plane 10B of the objective lens is positioned nearer to an image side than a lens surface 8A nearest to the image side out of the lens surfaces of the second optical system, and a distance X between the lens surface 8A nearest to the image side and the rear side focal plane 10B satisfies a conditional expression X/f>1.5 by using the focal distance (f) of the objective.  <P>COPYRIGHT: (C)2006,JPO&NCIPI
Patent JP-2006194282-A (JP)
Title: Mechanical seal mechanism
Inventor: UENO TAKAFUMI
IPC: F16J15/34
Filed: 2005-01-11
Abstract: <P>PROBLEM TO BE SOLVED: To provide a mechanical seal mechanism excellent in sliding characteristics of sealing rings, low in friction resistance, and excellent in a service life, at low cost.  <P>SOLUTION: In an embodiment, hard carbon thin film 10 composed of DLC and containing 20 atom % or less hydrogen is formed on a seal surface of a rotary seal ring 4 attached on a side of a rotor 12, or a opposite seal surface of a fixed seal ring 7 attached on a side of a housing 13 storing the rotor 12, or both seal surfaces, and mixture of glycol of one kind, two kinds or more glycol is contained in liquid to be sealed.  <P>COPYRIGHT: (C)2006,JPO&NCIPI