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    PHASE DIFFERENCE PLATE AND LIQUID CRYSTAL DEVICE PROVIDED WITH THE SAME
    31.
    发明专利
    PHASE DIFFERENCE PLATE AND LIQUID CRYSTAL DEVICE PROVIDED WITH THE SAME 失效

    公开(公告)号：JPH09292522A

    公开(公告)日：1997-11-11

    申请号：JP10817096

    申请日：1996-04-26

    Applicant: CANON KK

    Inventor： KUREMATSU KATSUMI ,  TAKABAYASHI HIROSHI ,  ONITSUKA YOSHIHIRO ,  SATO TAKASHI

    IPC: G02B5/30 ,  G02F1/1335 ,  G09F9/35

    Abstract: PROBLEM TO BE SOLVED: To provide a phase difference plate capable of improving whole visual filed angle characteristic of a liquid crystal panel of an inplane mode and a liquid crystal device provided with the same. SOLUTION: Discotic liquid crystal molecules 34 are arranged and fixed on a transparent planar body 33 to form a phase difference layer 31 and, meanwhile, the liquid crystal molecules 34 are arranged and fixed so that disk planes thereof are vertical or almost vertical to the facial direction of the transparent planar body 33 at the time of forming the phase difference layer 31. Thereby, the optical axis of the phase difference plate 3 having optically minus uniaxial anisotropy is made parallel or almost parallel to the facial direction thereof. Then, leakage light at the time of displaying black on the liquid crystal display panel in a mode in which the bar-shaped liquid crystal molecules are always parallel or almost parallel to the facial direction of a glass substrate is reduced by providing the phase difference plate 3 between a pair of glass substrates holding the bar-shaped liquid crystal molecules having positive uniaxial anisotropy and a pair of polarizing plates mounted on outer surfaces of the glass substrates.

    画像形成装置
    32.
    发明专利
    画像形成装置 审中-公开

    公开(公告)号：JP2019020543A

    公开(公告)日：2019-02-07

    申请号：JP2017137515

    申请日：2017-07-14

    Applicant: CANON KK

    Inventor： SATO TAKASHI ,  KATSUTA YASUSHI ,  KOJIMA KATSUHIRO ,  SASAKI HIROSHI ,  KAWADA KENTARO

    IPC: G03G15/01

    Abstract: 【課題】オフセットの発生を抑制し、最下層のトナーの用紙への定着強度の増強を図ること。【解決手段】複数の画像形成ステーションを備えた画像形成装置において、像形成体上に複数のトナーを重ね合わせた際、最上層が球形トナーであり、最下層が扁平形状トナーであり、前記球形トナーは、投影面積が最大となる方向から見たときの平均円相当径d(μm)が3〜20μmであり、平均厚みt(μm)が3〜20μmであり、平均円相当径d(μm)と平均厚みt(μm)の比で示される平均扁平度d/tが0.9〜1.1であり、前記扁平形状トナーは、投影面積が最大となる方向から見たときの平均円相当径d(μm)が3〜20μmであり、平均厚みt(μm)が0.1〜1μmであり、平均円相当径d(μm)と平均厚みt(μm)の比で示される平均扁平度d/tが3〜200であることを特徴とする。【選択図】図1

    POWER UNIT, ELECTRONIC EQUIPMENT, AND METHOD FOR CONTROLLING THE POWER UNIT
    35.
    发明专利
    POWER UNIT, ELECTRONIC EQUIPMENT, AND METHOD FOR CONTROLLING THE POWER UNIT 失效

    公开(公告)号：JP2000354375A

    公开(公告)日：2000-12-19

    申请号：JP16073599

    申请日：1999-06-08

    Applicant: CANON KK

    Inventor： SATO TAKASHI

    IPC: H02M3/28

    Abstract: PROBLEM TO BE SOLVED: To provide a switching power unit which can reduce losses during standby, and at the same time, can significantly reduce unnecessary power consumption during the standby on a system main body side. SOLUTION: A system controller 7 discriminates standby actual operation of a system main body and switches the oscillation frequency of a switching power unit. When the system main body is actually operated, the controller 7 impresses an 'L' level frequency switching signal CH upon an input terminal 12. When the signal CH is impressed upon the terminal 12, an output on/off circuit 18 is turned on and supplies a power Vo1 to a main body-side DC-DC converter 6. When the system main body is actually operated, the oscillating state by means of a triangular wave generating circuit OSC 3 becomes a high-frequency state. During the standby of the system main body, the controller 7 impresses an 'H' level signal upon the input terminal 12. When the 'H' level signal is impressed upon the terminal 12, the output on/off circuit 18 is turned off and the power supply to the system main body-side DC-DC converter 6 is interrupted. During this standby, the oscillating state by means of the OSC 3 becomes a low-frequency state.

    RETICLE, EXPOSURE METHOD AND ALIGNER FOR SEMICONDUCTOR
    36.
    发明专利
    RETICLE, EXPOSURE METHOD AND ALIGNER FOR SEMICONDUCTOR 失效

    公开(公告)号：JP2000181050A

    公开(公告)日：2000-06-30

    申请号：JP37573398

    申请日：1998-12-17

    Applicant: CANON KK

    Inventor： SATO TAKASHI ,  INE HIDEKI

    IPC: H01L21/027 ,  G03F1/24 ,  G03F1/54 ,  G03F1/08

    Abstract: PROBLEM TO BE SOLVED: To improve the completion degree of a projection optical system and to realize a high-grade optical system by using a reticle having specified pattern height for exposure in an exposure method to transfer the pattern formed on a transmission type reticle with a projection optical system using the center wavelength. SOLUTION: In this exposure method to transfer a pattern formed on a transmission-type reticle by a projection optical system using a center wavelength λ, a reticle having a pattern height H (thickness of chromium 2) equal to (2N-1)λ/4 (where N is the positive integer) is used for exposure. By controlling the pattern height H of the reticle determined by the center exposure wavelength λ to satisfy the conditions to give the maximum influences of the coma aberration remaining in the projection optical system, minute coma aberration remaining in the projection optical system can be evaluated. Then by controlling the projection optical system based on the evaluation result, the completion degree of the projection optical system can be improved, and a high-resolution optical system can be obtd.

    SWITCHING POWER SUPPLY
    37.
    发明专利
    SWITCHING POWER SUPPLY 失效

    公开(公告)号：JP2000175448A

    公开(公告)日：2000-06-23

    申请号：JP36192498

    申请日：1998-12-04

    Applicant: CANON KK

    Inventor： SATO TAKASHI

    IPC: H02M3/28

    Abstract: PROBLEM TO BE SOLVED: To suppress transient current to prevent its breakdown when a switching element is on and operates the switching element in safe operating ranges, by controlling the bias voltage of the control terminals of the switching element placed in series in a direct-current output line, thereby controlling the switching speed of the switching element. SOLUTION: A switching power supply having a transformer 1, an oscillation control circuit, a rectifying smoothing circuit and the like is provided with a control circuit 7 for controlling a switching element Q2 placed in a direct- current output line. The switching power supply is also provided with resistors R3, R4, and R9 for biasing the base of a transistor Q4, a resistor R6 for controlling the base current, a capacitor C2 which provides the voltage between the base and the emitter with a time constant, and resistances R7 and R8 for limiting the base current of a transistor Q5, which controls the output switching element Q2. As a result, the peak value of the inrush current of the switching element Q2 turned on by a control signal RS can be suppressed, even if a load 6 is a capacitive load.

    POSITION DETECTING METHOD AND DEVICE, AND MANUFACTURE OF DEVICE
    38.
    发明专利
    POSITION DETECTING METHOD AND DEVICE, AND MANUFACTURE OF DEVICE 失效

    公开(公告)号：JP2000058427A

    公开(公告)日：2000-02-25

    申请号：JP22995398

    申请日：1998-08-03

    Applicant: CANON KK

    Inventor： SATO TAKASHI ,  HASEGAWA MASANORI ,  INE HIDEKI ,  YOSHII MINORU

    IPC: G03F7/22 ,  H01L21/027

    Abstract: PROBLEM TO BE SOLVED: To enable an alignment operation of high accuracy to be carried out without being affected by uneven application of resist by a method wherein a rugged pattern of high symmetry is preferentially selected out of rugged patterns, and position data as to the rugged patterns are detected resting on a picture image obtained by picking up the rugged pattern. SOLUTION: The position (center position) of a mark is detected through an optical system. At this point, the mark which is judged excellent in symmetry resting on its cross sectional shape is preferentially selected out of marks (S4), and the picture image of the selected alignment mark of high symmetry is picked up by an image sensing means provided in a detection system, and position data on the alignment mark are detected resting on the picture image picked up by the image sensing means (S5). A circuit pattern on a reticule and a wafer are aligned with each other through the detected position data as to the alignment mark (S6), and a circuit pattern is transferred onto the wafer by exposure (S7). After an exposure operation that is carried out for all shots is finished, the wafer is taken out from a movable stage (S8), and processing is finished.

    POWER SUPPLY
    39.
    发明专利
    POWER SUPPLY 失效

    公开(公告)号：JPH0946895A

    公开(公告)日：1997-02-14

    申请号：JP19147095

    申请日：1995-07-27

    Applicant: CANON KK

    Inventor： SATO TAKASHI

    IPC: H02H9/06 ,  H01T4/10 ,  H05F3/02 ,  H05K1/02 ,  H05K3/34

    Abstract: PROBLEM TO BE SOLVED: To prevent a malfunction or damage to an element caused by external energy without making the body size larger or assembling cost higher, by tearing off at least one part of solder resist as a discharging path on a printed circuit board. SOLUTION: When electrostatic energy as outer energy is applied from an output terminal 6 or an output terminal 7, the electrostatic energy is carried through elements of Y-capacitance C3, T-capacitance C1 or Y-capacitance C2 to an input-side circuit. As a result, there is a difference in potential between input terminals 1 and 2 in a pair, and the output terminals 6 and 7, and almost all the voltage caused by the potential difference is applied across the input and output ends of an inductance L1. At the same time, a discharging path is formed between inductance a-c and between inductance b-d. In this way, a part of resist on a printed circuit board is torn off as a discharging path to discharge external energy.

    FERROELECTRIC LIQUID CRYSTAL DISPLAY DEVICE
    40.
    发明专利
    FERROELECTRIC LIQUID CRYSTAL DISPLAY DEVICE 失效

    公开(公告)号：JPH06337407A

    公开(公告)日：1994-12-06

    申请号：JP15272193

    申请日：1993-05-31

    Applicant: CANON KK

    Inventor： SATO TAKASHI ,  TAJIMA HISAO

    IPC: G02F1/1333

    Abstract: PURPOSE:To avoid the degradation of display quality caused by dislocation of upper and lower substrates by improving the display quality by thinning a liquid crystal display device, and eliminating contraction of polarizing plates even in a high temperature and high humidity environment. CONSTITUTION:Polarizing plates 2 and 3 are stuck directly on the surfaces of substrates 8 and 8 constituting a display panel 1, and glass plates 4 and 5 are stuck on these polarizing plates 2 and 3. Since the void is not arranged between the polarizing plates 2 and 3 and the substrates 8 and 8 in this way, a device itself becomes thin, and since the polarizing plates 2 and 3 are constituted so as to be sandwiched between the glass plates 4 and 5 and the substrates 8 and 8, these do not contract even in a high temperature and high humidity environment.

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