baber/WOPTO huggingface dataset:
Patent JP-2009523295-A (JP)
Title: 連続したデジタル情報ストリーム中の知覚される不連続性を低減する方法および装置
IPC: G11B20/12
Filed: 2007-01-08
Abstract: 本発明は、多層記録担体１０４の第１の層Ｌ０から第２の層Ｌ１への遷移中に生じる、第１の層Ｌ０および第２の層Ｌ１から読み出される連続したデジタル情報ストリーム中の知覚される不連続性を、低減する方法および装置に関する。この方法は、多層記録担体１０４上に記録されるべきデジタル情報ストリームをモニタリングする工程Ｓ１と、デジタル情報ストリーム中の、知覚される不連続性の影響が低くされている点に対応する時点ｔ １ を特定する工程Ｓ２と、多層記録担体１０４の第１の層Ｌ０上への記録から、第２の層Ｌ１上への記録への遷移が、特定された時点ｔ １ において生じるように、デジタル情報ストリームを記録する工程Ｓ３とを含む。本発明は、たとえば比較的小さなデータバッファを有する読出装置において生じる、知覚される不連続性を最小限に抑える有効な方法を提供する。本発明はさらに、データバッファのサイズを小さくする可能性、および多層記録担体の読出用に構成された装置での読出中に使用される能動部品に課せられる、時間条件を緩和する可能性を提供する。
Patent JP-2009523364-A (JP)
Title: 電力節約のための低電力無線ネットワークの制御
IPC: H04L45/28
Filed: 2007-01-11
Abstract: 無線メッシュネットワークは、ホストコンピュータと複数のフィールドデバイスとの間で、メッセージをルーティングする。メッシュネットワークは、メッセージがネットワークのノードによって送受信可能な起動期間と、メッセージが送受信不能な停止期間とを規定する、広域的で、定期的な起動スケジュールと同期される。選択されたフィールドデバイスにホストコンピュータによって送信されるメッセージに基づいて、ネットワークは、選択されたフィールドデバイスにメッセージをルーティングするのに必要なノードを、選択的に起動を維持するように制御される。それらの必要とされるノードは、選択されたフィールドデバイスとの通信が継続している限り、起動状態に維持される一方、他のノードは、低電力の停止状態に復帰することができる。ホストコンピュータと選択されたフィールドデバイスとの間の通信がもはや必要でなくなると、ネットワーク全体が、低電力の停止状態に入ることができる。
Patent JP-2009527141-A (JP)
Title: データ通信方法、データ送信および受信装置ならびにシステム
IPC: H04L25/02
Filed: 2007-02-06
Abstract: 方法（１００）は、第１導線（３１２）および他の一組の導線（３１４）セットを有するデータ通信バス（３１０）上でデータを通信するために開示する。この方法（３００）は、第１導体（３１２）に、第１データ通信期間（Ｔ１）の開始信号を送るための第１信号遷移（２１０）を供給し、そして、予定義した遅延が第１データ値を定義するものとして、第１信号遷移（２１０）の供給に対して予定義した遅延後に、他の導体（３１４）に、遅延信号遷移（２２０）を供給する。したがって、本発明の方法は、バス上におけるデータ通信用のデータ符号化技術を提供し、本発明による方法は、他の符号化技術、例えばパルス幅変調符号化よりも、スイッチング動作が少なくて済む。本発明は、さらに、データ送信装置（４００）、データ受信装置（５００）およびこれら装置を有するシステム（３００）を開示し、これらのすべては、上述した方法のさまざまな態様を実施する。
Patent JP-2009526959-A (JP)
Title: 圧力補償チャンバーを有する密封栓
IPC: F16J15/04
Filed: 2007-01-12
Abstract: 板金（１）または車両の床にある開口を密封する栓が、前記板金（１）または前記床の１つの側に固定されて前記開口を覆い、第１の周縁シール部が設けられた周縁フランジ（１２）を含むキャップ（１０）と、前記開口に入る固定部（２０）と、前記キャップ（１０）または固定部（２０）に形成され、前記第１のシール部（１４）から離間し、前記板金（１）または前記床上に固定される第２のシール部（２４）とを備え、前記板金（１）または前記床と、前記２つのシール部（１４，２４）と、前記栓の少なくとも１つの壁とが空洞（５０）を形成し、前記空洞（５０）と連通する圧力補償チャンバー（４０）を含み、前記圧力補償チャンバー（４０）の体積を変えることによって、前記空洞（５０）内部の温度変化によって生じる圧力変化を補償するようにした。
Patent JP-2009527353-A (JP)
Title: 噴霧乾燥用ジェットホイール衝撃噴霧装置及びスラリ／液体微細分散噴霧調製プロセス
IPC: B05B3/02
Filed: 2007-02-21
Abstract: 本発明は、スラリの微細分散噴霧を生成する噴霧装置及び易流動性噴霧乾燥アルミナ粉末調製プロセスを提供する。液体中の懸濁物質は、噴霧化を引き起こすために回転ホイールの歯付き表面に当たるように噴流の形でノズルから放出される供給原料スラリとして使用される。噴霧された液滴は、関連の乾燥室内で乾燥され、スクリューコンベヤを介して乾燥室の底部にて回収される。スラリとしては、セラミック、無機化合物及び有機化合物、食品、薬及びアユルヴェーダ（Ayurvedic）製品がある。液体担体としては、水、水溶性、非水溶性、無機及び有機の液体、及び前駆ゾルがある。球状／円形粒噴霧乾燥粉末は、新しいタイプの噴霧化プロセスにより生成される。 【選択図】図１
Patent JP-2009530155-A (JP)
Title: 自動車及び該自動車のルーフ格納方法
IPC: B60J7/14
Filed: 2007-03-08
Abstract: フロント・ルーフ部材（６）及びリア・ルーフ部材（４）を有し、両ルーフ部材（４，６）が夫々の上昇位置にあるときにフロント・ルーフ部材（６）及びリア・ルーフ部材（４）が協働して自動車（５）の乗員室（１）のカバーを形成する、ルーフ構造を持つ自動車（５）が開示される。ルーフ部材（４，６）の両方が、オープンカーを形成すべく格納位置に下降させられたとき、フラップ（７，１０７）が自動車（５）の両サイドで展開され、格納されたフロント・ルーフ部材（６）とアウター・リアパネル（９）との間の間隙を覆う。
Patent JP-2010157956-A (JP)
Title: Surface acoustic wave device
Inventor: TAZAKI TOMOHISA
IPC: H03H9/25
Filed: 2009-01-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a surface acoustic wave device capable of preventing destruction such as cracking of a piezoelectric substrate by reducing a load of stress caused by a difference in coefficient of thermal expansion.  <P>SOLUTION: The surface acoustic wave device is provided with: a piezoelectric substrate 12; a plurality of interdigital electrodes 13 provided on a surface of the piezoelectric substrate 12; wiring 15 connecting the plurality of interdigital electrodes 13; a sidewall 16 provided on the piezoelectric substrate 12 and surrounding the interdigital electrodes 13; a top plate 17 provided on the sidewall 16 and covering an exciting space 19 of the interdigital electrodes 13; and an external terminal 22 electrically connected to the wiring 15, wherein a dummy release hole 23, that is passed through the piezoelectric substrate 12 vertically, is provided on the sidewall 16.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010160267-A (JP)
Title: Image forming apparatus
Inventor: IKEDA MASAFUMI
IPC: G03G15/08
Filed: 2009-01-07
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image forming apparatus which reduces deteriorated toner in developer.  <P>SOLUTION: The image forming apparatus includes an image holding body and a developing device. The developing device includes: a developing roll which conveys the developer to a developing area facing the image holding body, and has a main developing part that conveys the developer to a main developing area facing a portion excepting a predetermined end on the image holding body in the developing area, and has a first potential difference from the image holding body, and a sub developing part that conveys the developer to a sub developing area facing the end in the developing area, and has a second potential difference from the holding body, which is different from the first potential difference; a conveyance body which holds the developer on its surface on a downstream side of a toner supply port; and an attracting body which has a potential difference from the conveying body and attracts the toner from the developer that is being conveyed by the conveying body with the potential difference.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010166123-A (JP)
Title: Apparatus and method for processing information and program
Inventor: MURAKOSHI TAKA
IPC: G10L19/00
Filed: 2009-01-13
Abstract: <P>PROBLEM TO BE SOLVED: To set meta information including the name of a music piece to a section for playing back the music piece included in already recorded contents.  <P>SOLUTION: On the basis of the broadcast start time of a CM and the information of a broadcast station, CM music information is acquired from a CM music information distribution server 3. The name of the music piece acquired from the CM music information distribution server 3 is linked with the feature value of the sound information of the CM and stored. When a program including the section for playing back the music piece such as a music program is recorded and the feature value of the sound information of each section of a music clip is extracted, matching search is performed. When the section in the music clip for which the feature value of the sound information whose matching degree with the feature value of the sound information of the CM is equal to or higher than a threshold is extracted is specified, the name of the music piece used in the CM is set to the music clip as the meta information. This invention is applicable to an apparatus having a recording function.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010164624-A (JP)
Title: Image forming apparatus, control method for image forming apparatus, and control program for image forming apparatus
Inventor: HAGIWARA TOSHIHIRO
IPC: G03G21/20
Filed: 2009-01-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide an image forming apparatus efficiently cooling paper in double-sided printing.  <P>SOLUTION: The image forming apparatus through which the paper is made to pass again after an image is printed on one side of the paper is provided with: a fixing part 1; and a controller which controls conveyance of the paper being the paper on the one side of which the image has been printed and which is ejected from the fixing part 1 so that the paper is stopped in a prescribed position P where a heat radiation effect is high. After stopped for prescribed time, the paper is conveyed into a double-sided unit 2.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010162074-A (JP)
Title: Shelf device
Inventor: SETO KAZUNORI
IPC: A47B96/06
Filed: 2009-01-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide a shelf device which has a good appearance and can neatly store wiring as well as facilitate wiring work.  <P>SOLUTION: The shelf device has a support 9 to be attached to a wall 2, shelf holding arms 33 provided on both sides of the support 9 and projecting forwarder than the support 9, a shelf board 7 supported by both shelf holding arms 33, and a decorative panel 8 attached to the support 9 and covering the front side of the support 9. The decorative panel 8 projects both sides outward beyond the support 9. Each of the shelf holding arms 33 includes a drawn portion 35 drawn out to the position where it projects outward beyond the side edge of the decorative panel 8, passing behind the decorative panel 8 from the support 9 and projecting portions 36 projecting forward from the ends of the drawn portion 35 which are drawn out from behind the decorative panel 8. The shelf board 7 is supported by the projecting portions 36. A wiring storage space 50 opened from between the side edges of the decorative panel 8 and the wall 2 is formed between the decorative panel 8 and the wall 2 behind that.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010164114-A (JP)
Title: Adjustment jig for valve element assembly and method for adjusting valve element assembly
Inventor: ONO KENICHI
IPC: F16K1/36
Filed: 2009-01-15
Abstract: <P>PROBLEM TO BE SOLVED: To provide an adjustment tool for a valve element assembly removing the stress of an O-ring attached to a valve element holder, and a method for adjusting a valve element assembly.  <P>SOLUTION: For a valve element assembly 23 where an O-ring 33 for use as a valve element is attached to the valve element holder 34, the adjustment jig 41 for the valve element assembly 23 removes the stress of the O-ring 33 in its twisting direction and in its circumferential direction, which is caused by a friction between the O-ring and the valve element holder 34. The adjustment jig includes a jig body 42 at least one surface of which is formed as a flat surface; an adjustment hole 44 formed through the tool body 42 and into which the valve element assembly 23 is inserted from the flat surface, the adjustment hole 44 having the ring pressing-in section 52 of circular cross section into which the O-ring 33 of the valve element assembly 23 is pressed; and a pusher 43 for pushing the valve element assembly 23 out to the flat surface from the adjustment hole 44.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010163079-A (JP)
Title: Wind throb prevention structure for front door of automobile
Inventor: ISHIDA TAKANORI
IPC: B60J1/17
Filed: 2009-01-16
Abstract: <P>PROBLEM TO BE SOLVED: To prevent an occurrence of wind throbs by controlling the air stream flowing on the side surface of a vehicle body so that it flows unevenly when the vehicle travels at a predetermined speed while an opening of a front door is opened.  <P>SOLUTION: A substantially U-shaped panel material 15, which is a flat plate having transparency and opening on the rear side of the vehicle, is mounted on a division bar 14 provided between a fixed glass 12 and a lifting glass 13. The panel material 15 is formed in a shape in which the upper end of the inner peripheral surface 15b of the panel material 15 is formed along the peripheral surface of a door frame 11, the lower end of the inner peripheral surface 15b of the panel material 15 is formed along the peripheral surface of a door body 10, the upper surface of the outer periphery of the panel material 15 is formed along the peripheral surface of the door frame 11, and the lower surface of the outer periphery of the panel material 15 is formed along the peripheral surface of the door body 10.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010169732-A (JP)
Title: Display device and its drive control method
Inventor: SETO YASUHIRO
IPC: H05B33/02
Filed: 2009-01-20
Abstract: <P>PROBLEM TO BE SOLVED: To suppress errors of a program due to gate parasitic capacity of a drive transistor for driving a light emitting element.  <P>SOLUTION: A display device is provided with an active matrix substrate in which many pixel circuits 11 are arranged, wherein each pixel circuit has: the light emitting element 11a; the N-type drive transistor 11b whose source terminal is connected to an anode terminal of the light emitting element 11a, and which supplies a drive current to the light emitting element; and a capacity element 11c connected between a gate terminal of the drive transistor 11b and the source terminal. The light emitting element 11a measures forward voltage when being in a light emitting state, and applies the measured forward voltage to the source terminal of the drive transistor 11b when program voltage is set to the drive transistor 11b.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2009183698-A (JP)
Title: Instrument holder
Inventor: FINLAY PATRICK ARMSTRONG
IPC: A61B17/02
Filed: 2009-01-22
Abstract: <P>PROBLEM TO BE SOLVED: To provide a surgical instrument supporting device, a method for manufacturing the surgical instrument supporting device, a valve module for connecting the surgical instrument supporting device, a supporting arm, and a surgical system.  <P>SOLUTION: The supporting arm 1 comprises a flexible tubular main body, and a plurality of beads 3 which are contained in the tubular main body that is not substantially fluid-tight, are partially surrounded with a fluid in a first configuration, and evacuate at least some of the fluid in a manner to keep rigidity of the arm 1 increased in a second configuration.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2010168811-A (JP)
Title: Joint bar of wall of reinforced concrete building
Inventor: ASAOKA SHIGERU
IPC: E04G15/06
Filed: 2009-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To provide a joint bar of a wall of a reinforced concrete building, capable of preventing the concrete of the corner of a joint from deteriorating by improving the degree of fitting of the joint surfaces of a form and the joint bar to prevent the slag of concrete from intruding thereinto.  <P>SOLUTION: In this joint bar 1 installed on a form plywood 4, joint projections 12a, 12a for improving adhesion are provided to the body 2 of the joint bar 1 on the side thereof joined to the form plywood 4.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2009111422-A (JP)
Title: Multilayer capacitor and manufacturing method therefor
Inventor: TOGASHI MASAAKI
IPC: H01G4/12
Filed: 2009-01-23
Abstract: <P>PROBLEM TO BE SOLVED: To provide a multilayer capacitor capable of easily and precisely controlling the equivalent series resistance, and to provide a manufacturing method therefor.  <P>SOLUTION: The multilayer capacitor includes a laminate 10, having a plurality of dielectric layers and a plurality of first and second internal electrodes laminated alternately, and first and second terminal electrodes formed on the laminate 10. The first terminal electrode 1 is electrically connected to the first and the second internal electrodes 21 and 22. The first terminal electrode 1 includes a resistance layer 4, having larger resistivity than those of the first internal electrodes 21 and 22. The resistance layer 4 covers the ends of lead portions of the first internal electrodes 21 and 22, exposed to a side face 10a. The resistance layer 4 is wider than the lead portions of the first internal electrodes 21 and 22 and narrower than the side face 10a, where the first terminal electrode 1 is formed.  <P>COPYRIGHT: (C)2009,JPO&INPIT
Patent JP-2010169612-A (JP)
Title: Surface inspection device
Inventor: SATO TATSUMI
IPC: G01N21/956
Filed: 2009-01-26
Abstract: <P>PROBLEM TO BE SOLVED: To provide a surface inspection device enhancing inspection accuracy on optical elements (concave mirrors) constituting an illumination system or a light receiving system.  <P>SOLUTION: This surface inspection device includes a stage 10 supporting a wafer W, a light source 22 projecting light for inspecting the wafer W, the illumination system 20 for illuminating the surface of the wafer W with light from the light source 22, the light receiving system 30 for focusing the light from the illuminated surface of the wafer W into an image on a prescribed imaging surface, an imaging part 32 for taking the image focused on the imaging surface, an inspection part (an image processor 50, a central controller 60, and a display 70) for inspecting the surface of the wafer W based on the image taken by the imaging part 32, a laser light source for illuminating at least either an illuminating-side concave mirror 26 or a light receiving-side concave mirror 31, a photodiode for detecting scattered light arising from an illuminated part of the concave mirror which is a diagnosing object illuminated by the light source, and a diagnostic part 40 for inspecting the concave mirror based on the scattered light detected by the photodiode.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010167196-A (JP)
Title: Endoscope device
Inventor: HIRATA HIDETOSHI
IPC: G02B23/24
Filed: 2009-01-26
Abstract: <P>PROBLEM TO BE SOLVED: To improve heat radiation performance in a length direction on heat generated at a tip part without prohibiting reduction in diameter in the endoscope.  <P>SOLUTION: The endoscope device is provided with a heat source at an insert side tip part, and a bendable curvature part continuous with the tip part. At least part of an angle net member disposed to cover the curvature part from the tip part side is composed of a high heat conductivity member having heat conductivity of 100 W/mK or more.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010175673-A (JP)
Title: Eyepiece and optical device
Inventor: YAMADA KENJI
IPC: G02B25/00
Filed: 2009-01-28
Abstract: <P>PROBLEM TO BE SOLVED: To provide an eyepiece having a wide apparent field of view and a sufficiently long eye-relief, and to provide an optical device equipped with the eyepiece.  <P>SOLUTION: The eyepiece 3 for use in an optical device, such as a telescopic optical system TS, includes in order from the side of an observation eye (eye point EP): a first lens group G1 having positive refractive power; a second lens group G2 having negative refractive power; wherein an intermediate image I is formed between the first lens group G1 and the second lens group G2. The first lens group G1 includes in order from the observation eye side: a first lens component G11 being a positive meniscus lens with a concave surface directed to the observation eye side; a second lens component G12 being a cemented lens composed of a negative lens and a positive lens; a third lens component G13 being a cemented lens composed of a positive lens and a negative lens; and a fourth lens component G14 being a positive meniscus lens with a convex surface directed to the observation eye side.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010176061-A (JP)
Title: Photographing apparatus and program
Inventor: NAKANO KANAKO
IPC: G02B7/36
Filed: 2009-02-02
Abstract: <P>PROBLEM TO BE SOLVED: To solve the following problem: a photographing apparatus carries out useless focusing operation because the change of framings always causes the focusing operation to be reactivated.  <P>SOLUTION: The photographing apparatus 100 carries out focusing operation of a contrast detection system. The photographing apparatus 100 determines whether or not a photographing range is changed (a step S6) after once focusing on a main subject M within an AF frame F (a step S3). The photographing apparatus 100 does not reactivate the focusing operation when the photographing apparatus determines that the main subject M does not move (a step S8:NO) even if it determines that the photographing range has changed (a step S6:YES). Thereby, the useless focusing operation is prevented when the photographing range is changed.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010179402-A (JP)
Title: Polishing sheet and method for manufacturing the same
Inventor: KUSUMI MASATAKA
IPC: B24D11/00
Filed: 2009-02-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a polishing sheet capable of compatibly improving both polishing capacity and extracting capacity of polishing wastes, and a method for manufacturing the polishing sheet.  <P>SOLUTION: The polishing sheet 10 is formed with a plurality of base sections 2 arranged with gaps on a base sheet 1. A plurality of projecting sections 3 are formed on the base sections 2. The projecting section 3 contains abrasive grains and is provided with convex sections 4 which are formed caused by the abrasive grains.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2009220176-A (JP)
Title: Joining method
Inventor: SATO ISATO
IPC: B23K20/12
Filed: 2009-02-05
Abstract: <P>PROBLEM TO BE SOLVED: To provide a joining method for joining metal members to each other by agitating their abutting portions frictionally from the surface side and the back side thereof, thereby to improve the gas-tightness and the water-tightness at the joined portions.  <P>SOLUTION: The joining method includes a first joining step of agitating the abutting portions J1 of metal members 1a, 1b frictionally from the side of the surface A of an object metal member 1, and a second joining step of agitating the abutting portions J1 frictionally from the side of the back B of the object metal member 1. The joining method is characterized in that the frictional agitation is performed at the second joining step by inserting the agitating pins of a joining rotation tool G into a surface-side plasticizing region W1 formed at the first joining step, thereby to reduce cavity defects R left in the surface-side plasticizing region W1.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010183418-A (JP)
Title: Radio communication system
Inventor: NAKANO YUSUKE
IPC: H04B5/00
Filed: 2009-02-06
Abstract: <P>PROBLEM TO BE SOLVED: To provide a radio communication system which achieves high-reliability communication between a plurality of base stations and a mobile station.  <P>SOLUTION: A radio communication system includes a center device, a plurality of base stations coupled with the center device, a radio mobile station connected with the base stations via a radio channel, and two leaky coaxial cables disposed along a traveling path of the radio mobile station and connected to the respective base stations. The plurality of base stations transmit, respectively, different diversity signals to the respective two leaky coaxial cables and the mobile station includes first and second receiving parts for receiving the different diversity signals transmitted from the base stations, respectively, and a combination part for diversity-combining the signals received by the first and second receiving parts.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010182599-A (JP)
Title: Method and apparatus for forming film on collector for lithium ion battery
Inventor: IMAMURA YUICHIRO
IPC: H01M4/139
Filed: 2009-02-09
Abstract: <P>PROBLEM TO BE SOLVED: To easily peel and remove a film adhering to a surface of a film formation roller in itself.  <P>SOLUTION: A long substrate sheet 8 constituting a collector for a lithium ion battery is transported while contacting with the film formation roller 4 to form a film on a surface of the substrate sheet 8. A surface temperature of a part with which the substrate sheet 8 does not contact in the film formation roller 4 is made to be lower than that of a part with which the substrate sheet 8 contacts in the film formation roller 4. In addition, the film adhering to the part in which the surface temperature of the film formation roller 4 is lowered is peeled off by a collision of neutral particles.  <P>COPYRIGHT: (C)2010,JPO&INPIT
Patent JP-2010187255-A (JP)
Title: Automatic document reader and image forming apparatus using the same
Inventor: NAKAMURA SHOJI
IPC: H04N1/04
Filed: 2009-02-13
Abstract: <P>PROBLEM TO BE SOLVED: To provide an automatic document reader properly reading a document by correcting an obtained amount of light received in accordance with wrinkles to be generated when a thin document is read, and an image forming apparatus using the same.  <P>SOLUTION: In the automatic document reader provided with: a document tray on which the document is placed; a document feed means for feeding the document; a thickness detection means for detecting thickness of the document; an optical unit with a light source for irradiating the document; a reading part which receives light reflected from the document; and a discharge means for discharging the document. The automatic document reader includes a control part which performs light intensity correction of the optical unit in the optical axis direction to a value of the reading part when a result of the thickness detection means is equal to or less than a predetermined value.  <P>COPYRIGHT: (C)2010,JPO&INPIT