公开(公告)号：JP2002126901A

公开(公告)日：2002-05-08

申请号：JP2000324235

申请日：2000-10-24

Applicant: CANON KK

Inventor： SAITO MASAMICHI

IPC: B23B1/00 ,  B23B5/36

Abstract: PROBLEM TO BE SOLVED: To provide a cutting work capable of machining even a curved surface, having a small radius of curvature, with excellent surface roughness in a short time. SOLUTION: A cutting tool 2 is caused to effect movement in the cutting force direction and the thrust force direction on a work by two or more direct acting actuators 10a and 10b, the tip of the cutting tool 2 is caused to effect rotational movement, and the cutting tool is scanned in the direction approximately orthogonal to the cutting direction to effect a cutting work.

公开(公告)号：JP2001277068A

公开(公告)日：2001-10-09

申请号：JP2000101480

申请日：2000-04-03

Applicant: CANON KK

Inventor： SAITO MASAMICHI

IPC: B23Q11/08

Abstract: PROBLEM TO BE SOLVED: To provide a protecting cover device for linearly moving slider with the simple structure and having little bad influence on the operation of the linearly moving slider. SOLUTION: This protecting cover device for the linearly moving slider for protecting a linearly moving slider placed on a vibration control base 1 is provided with protecting covers 8 and 9 for covering the linearly moving slider while avoiding a contact with a movable part 7 of the slider or while connected to the movable part 7 through a weak elastic body, a driving device for driving the protecting covers 8 and 9 for movement synchronously with the movement of the movable part 7 of the slider, and a support member as a supporting member 12 for supporting the protecting covers and the driving device and fixed outside of the vibration control base 1 at a base end thereof.

公开(公告)号：JPH09292615A

公开(公告)日：1997-11-11

申请号：JP10816396

申请日：1996-04-26

Applicant: CANON KK

Inventor： SATO FUMIYOSHI ,  SAITO MASAMICHI ,  NISHIDA NAOYA

IPC: G02F1/1337

Abstract: PROBLEM TO BE SOLVED: To improve durability of a rubbing cloth. SOLUTION: The surface of a substrate 40 for regenerating a rubbing cloth 12 which continuously performs orientation processing to an oriented film by rubbing the surface of a substrate for holding a liquid crystal is made rougher than the surface of the substrate for holding the liquid crystal and, meanwhile, the rubbing cloth 12 is made to rub the substrate 40 for regeneration at a prescribed interval. Thereby, friction coefficient of a thread material surface of the rubbing cloth 12 reduced by rubbing is raised to recover orientation processing capacity of the rubbing cloth 12.

公开(公告)号：JPH07333615A

公开(公告)日：1995-12-22

申请号：JP14386594

申请日：1994-06-02

Applicant: CANON KK

Inventor： KODERA YASUHITO ,  MIURA KIYOSHI ,  SATO FUMIYOSHI ,  SAITO MASAMICHI ,  AOYAMA KAZUHIRO

IPC: G02F1/1337

Abstract: PURPOSE:To prevent adhesion of foreign matter and generation of flaws on and in an oriented film and to obtain a good orientation state free from defects. CONSTITUTION:The parts to be rubbed to the oriented film at the time of a rubbing treatment are not front ends 120b of napping fibers 120 but are side face parts 120a and are parts of

公开(公告)号：JPH07253580A

公开(公告)日：1995-10-03

申请号：JP818995

申请日：1995-01-23

Applicant: CANON KK

Inventor： MIHARA TADASHI ,  KODERA YASUTO ,  AOYAMA KAZUHIRO ,  MORI SUNAO ,  MIURA SEISHI ,  SATO FUMIYOSHI ,  SAITO MASAMICHI ,  TAKAO HIDEAKI ,  KOJIMA MAKOTO ,  ASAOKA MASANOBU

IPC: G02F1/1337

Abstract: PURPOSE:To provide a liquid crystal element which hardly generates a fluctuation of a cell thickness with simple constitution and a device formed by using this element. CONSTITUTION:This liquid crystal element has substrates 11a, 11b which have a pair of electrodes 12a, 12b facing each other and a chiral smectic liquid crystal 15 which is disposed between a pair of these electrodes and exhibits a state of bistable states. The inside surfaces of the substrates 11a, 11b are so subjected to orientation treatments that the moving direction when the one state of the bistable states is placed under an electric field is the same direction as the moving direction when the other state is placed under the electric field. The orientation treatment of a frame region 32 is varied from the orientation treatment of a display region 31. The same effect is obtd. by improving driving conditions, the oriented films of the frame region and the orientation treatment method.

公开(公告)号：JPH1114816A

公开(公告)日：1999-01-22

申请号：JP17777997

申请日：1997-06-19

Applicant: CANON KK

Inventor： SAITO MASAMICHI

IPC: G02B5/20

Abstract: PROBLEM TO BE SOLVED: To precisely position every ink head in a short time by providing the mechanism, which is capable of independently adjusting plural ink jet heads in the direction normal to a scanning direction, to a holding mechanism. SOLUTION: A head unit 5 is provided with relative position adjusting mechanisms of an R head 31 and a B head 32 using a G head 30, which is arranged in the center, as a reference. In other words, a micrometer head 33 adjusts the relative position of the head 31 in an X direction and a piezoelectric element 35 finely adjusts the relative position of the head 31 in the X direction. A micrometer head 38, which is used to adjust the R head in a G direction, uses a wedge similar to the X direction adjustment. Reletive position adjustment of each head and the position adjustment of the entire head unit are conducted by detecting the gaps in the X direction between each θ, R-G and G-B from ink landing positions, the amount of the deviation in the θ direction and the positional relationship with respect to a stage employing an ink land position detection optical system and the relative position adjusting mechanism of each head and the head unit position adjustment mechanism are driven accordingly.

公开(公告)号：JPH10250117A

公开(公告)日：1998-09-22

申请号：JP5659397

申请日：1997-03-11

Applicant: CANON KK

Inventor： SAITO MASAMICHI

IPC: B41J2/21 ,  B41J2/13 ,  G02B5/20

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing apparatus for a color filter, applicable even to a large-sized color filter base, while reducing a maximum size of the manufacturing apparatus to as small as an extent as possible. SOLUTION: This apparatus is the one for manufacturing a color filter by jetting ink from an ink jet head directly to a color filter base to color it while relatively scanning the ink jet head and the color filter base. Each apparatus is provided with at least one ink jet heat, respectively, and has n-sets (n denotes an integer of two or more) of ink jet head units 204 arrayed side by side in the direction orthogonal to a scanning direction and a position regulating means adapted to regulate the relative position of the n-sets of the ink jet head units 204. When the length in the direction orthogonal to the scanning direction in the coloring region of the color filter base is denoted by L1, an interval L3 in the direction orthogonal to the scanning direction of the n-sets of the ink jet head units is set to a distance satisfying L3≈L1/n.

公开(公告)号：JPH09329790A

公开(公告)日：1997-12-22

申请号：JP10749896

申请日：1996-04-26

Applicant: CANON KK

Inventor： MIHARA TADASHI ,  KODERA YASUHITO ,  AOYAMA KAZUHIRO ,  ONUMA KENJI ,  WADA TAKATSUGI ,  MIURA KIYOSHI ,  NUKANOBU TSUNEKI ,  SAITO MASAMICHI ,  SATO FUMIYOSHI

IPC: G02F1/137 ,  G02F1/13 ,  G02F1/1337 ,  G02F1/1341 ,  G02F1/141

Abstract: PROBLEM TO BE SOLVED: To reduce the variation of cell thickness due to the movement of liquid crystal and the accompanying yellowing phenomenon by forming a peripheral area on the outside of an effective optical modulation area and setting the pretilting angle of liquid crystal molecules in the peripheral area larger than that of the effective optical modulation area. SOLUTION: A pair of upper and lower substrates 11a, 11b are oppositely arranged and stuck to each other by a sealing material 17. An effective optical modulation area, a 1st peripheral area and a 2nd peripheral area are formed as areas surrounded by both the substrates 11a, 11b and the sealing material 17. The 2nd peripheral area is formed on a part or all of the outside of the 1st peripheral area. Since the liquid crystal of the 2nd peripheral area is orientated at random without requiring an optically uniaxial property, orientation processing is not applied to a part corresponding to the 2nd peripheral area of the substrates 11a, 11b. The pretilting angle of liquid crystal molecules in the 1st peripheral area is larger than that of liquid crystal molecules in the effective optical modulation area.

公开(公告)号：JPH09292617A

公开(公告)日：1997-11-11

申请号：JP10816496

申请日：1996-04-26

Applicant: CANON KK

Inventor： SATO FUMIYOSHI ,  SAITO MASAMICHI ,  NISHIDA NAOYA

IPC: G02F1/1333 ,  G02F1/1337

Abstract: PROBLEM TO BE SOLVED: To improve durability of a rubbing cloth. SOLUTION: Orientation treatment of an oriented film formed on a surface of a substrate 1a (1b) can be executed by cleaning the substrate 1a (1b) with an organic solvent W at the time of cleaning in a cleaning part 120. When the orientation treatment of the oriented film is executed by rubbing the substrate 1a (1b) with a rubbing cloth 12, rubbing strength by the rubbing cloth 12 can be lowered by executing orientation treatment of the oriented film at the time of cleaning and thereby degradation of the rubbing cloth 12 can be reduced and durability thereof can be improved.

公开(公告)号：JPH09277571A

公开(公告)日：1997-10-28

申请号：JP11060096

申请日：1996-04-08

Applicant: CANON KK

Inventor： SAITO MASAMICHI ,  SAKAI RIICHI

IPC: B41J2/21 ,  B41J2/01 ,  B41J2/125 ,  G02B5/20 ,  G02F1/1335

Abstract: PROBLEM TO BE SOLVED: To provide a low cost and highly reliable device by designing it so that the amount of a shift between an alignment mark on a substrate and the reference position of an image drawing head is detected by a displacement detecting device and the detected amount of a shift is corrected. SOLUTION: When a substrate 5 is mounted on an XY stage 3, a Z tilt direction is matched by a Z tilt stage so that the face of the substrate 5 stays within the detection range of an alignment detecting optical unit 6. In addition, either or three directions X, Y, θ is detected so that an alignment mark on the substrate 5 meets a reference position with the help of the alignment detecting optical unit 6. Based on the detection results, a shaft in the θdirection is corrected by a θ stage and a shift in the X, Y directions is corrected by the XY stage 3. Further, a clearance between the substrate 5 and an image drawing head 4 and their tilt are sought by an optical unit 7 for Z detection, and an image is drawn using the image drawing head 4 while controlling the Z tilt stage so that the clearance is constant. Thus it is possible to obtain a low cost and highly reliable device for manufacturing a color filter.