公开(公告)号：EP2014375A4

公开(公告)日：2010-02-10

申请号：EP07741848

申请日：2007-04-18

Applicant: SHARP KK

Inventor： NAKAJIMA YOSHINORI ,  MATOBA HIROTSUGU ,  TAMURA TOSHIHIRO

IPC: B05C5/00 ,  B05C11/10 ,  B05D1/00 ,  B41J3/28 ,  G02F1/13 ,  G02F1/1335 ,  H01L51/50 ,  H05B33/12

CPC classification number: G02F1/1303 ,  B05D5/005 ,  B41J3/28 ,  B41J3/407 ,  B41J2202/09 ,  C09D11/30 ,  G02F1/1309 ,  G02F1/133516 ,  H01L51/0005

公开(公告)号：EP2014374A4

公开(公告)日：2010-02-03

申请号：EP07741695

申请日：2007-04-16

Applicant: SHARP KK

Inventor： NAKAJIMA YOSHINORI ,  HIGUCHI KAORU ,  TAMURA TOSHIHIRO

IPC: B05C5/00 ,  B41J3/28 ,  B41J3/407 ,  G02F1/1335

CPC classification number: H01L21/6715 ,  B41J3/28

公开(公告)号：JP2002264343A

公开(公告)日：2002-09-18

申请号：JP2001063454

申请日：2001-03-07

Applicant: SHARP KK

Inventor： NAKAJIMA YOSHINORI ,  ISONO HITOSHI ,  HIGUCHI KAORU ,  KAKIWAKI NARIMITSU

IPC: B41J2/16 ,  B41J2/045 ,  B41J2/055

Abstract: PROBLEM TO BE SOLVED: To provide an ink jet head which comprises only a driving part, fits for mass production and facilitates electrical connection to the outside, and its manufacturing method. SOLUTION: In the ink jet head where a plurality of ink channels which become pressure chambers 20 are formed to a piezoelectric material, there are provided a first electrode 21 for driving the piezoelectric material of an inner face of the pressure chamber, and second electrodes 22A-22C for leading the first electrode 21 out of the pressure chamber. The second electrode 22A is layered to a part of the first electrode 21 present inside the pressure chamber in the vicinity of a rear end face of the head.

公开(公告)号：JP2001175075A

公开(公告)日：2001-06-29

申请号：JP36204099

申请日：1999-12-21

Applicant: SHARP KK

Inventor： TOYOSHIMA TETSURO ,  AZUMA NOBUYUKI ,  NAKAJIMA YOSHINORI ,  IWAMATSU TADASHI ,  MUTO YOSHINORI

IPC: G03G21/00 ,  G03G15/08

Abstract: PROBLEM TO BE SOLVED: To prevent the occurrence of uneven density, fogging and irregularities in an image due to a mechanical fluctuation at a contact part between a toner carrier and an electrostatic latent image holding body, and to form an image of good quality even at the time of forming an image of high resolution. SOLUTION: At a developing position where the circumferential surface of a developing roller 10 comes into press contact with the surface of a photoreceptor drum 2, as for a nip pressure P applied to the developer roller 10, the deformation δ of the developing roller 10, and a nip width S as the contact width of the circumferential surface of the developing roller 10 with the surface of the photoreceptor drum 2 in the circumferential direction, a spring constant P/δ is set within an extent of 2-200, P>1 gf/mm, S>2 mm, P/S (the ratio of the nip pressure P to the nip width S) is set to be 0.5 to 7. The dispersion of the dot diameter of a toner image formed on the surface of the photoreceptor drum 2 is suppressed, then, the outline of the dot becomes clear.

公开(公告)号：JP2006346677A

公开(公告)日：2006-12-28

申请号：JP2006271188

申请日：2006-10-02

Applicant: SHARP KK

Inventor： NAKAJIMA YOSHINORI ,  HIGUCHI KAORU ,  SAKAMOTO YASUHIRO ,  ASAI SHIGEMI

IPC: B05C5/00 ,  B05C13/02

Abstract: PROBLEM TO BE SOLVED: To provide a manufacturing device by an ink jet system or the like capable of efficiently performing discharge motions onto desired points dotted on a substrate. SOLUTION: The drop coater is provided with a stage 11 that holds the substrate 50 and can reciprocate in an A direction and a plurality of almost parallel beams 12 that traverse in a B direction which is an almost orthogonal direction with a reciprocating direction. Each beam 12 is provided with a plurality of drop discharging units 2 opposed to the stage 11 and each unit 2 is independently movable in the B direction in a movable area by a slider mechanism 20. COPYRIGHT: (C)2007,JPO&INPIT

公开(公告)号：JP2004009696A

公开(公告)日：2004-01-15

申请号：JP2002170156

申请日：2002-06-11

Applicant: SHARP KK

Inventor： YOSHIOKA TOMOYOSHI ,  NAKAJIMA YOSHINORI ,  SAGARA SATOYUKI

IPC: B41J2/16

Abstract: PROBLEM TO BE SOLVED: To detect the positions of parts assembled on a nozzle head with a higher accuracy. SOLUTION: The nozzle head 100 comprises a base plate 102, on the surface of which a plurality of ink grooves 108 for discharging ink are formed, vibration plates 104 mounted on the surface, where the ink grooves 108 are formed, as opposed to each other and a nozzle plate 106 having discharge holes 112 with the number thereof corresponding to the plurality of ink grooves 108. The base plate 102 has evaluation grooves 110 so formed on the surface thereof as to make the width of each thereof equal to that of each of the ink grooves 108. The nozzle plate 106 is installed at a position that satisfies a predetermined relationship with the evaluation grooves 110 while making the plurality of ink grooves 108 face the discharge holes 112 respectively. COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2002264328A

公开(公告)日：2002-09-18

申请号：JP2001063456

申请日：2001-03-07

Applicant: SHARP KK

Inventor： NAKAJIMA YOSHINORI ,  ISONO HITOSHI ,  SAKAMOTO YASUHIRO ,  KAKIWAKI NARIMITSU

IPC: B41J2/045 ,  B41J2/055 ,  B41J2/16

Abstract: PROBLEM TO BE SOLVED: To provide an ink jet head utilizing shear deformation of a piezoelectric in which manufacture, in particular formation of a cantilever drive electrode, is facilitated. SOLUTION: In the ink jet head for ejecting ink by shear driving of a piezoelectric material, the drive electrode 5 being formed on the substantially upper half of a pressure chamber wall 3 partitioning a plurality of groove-like ink channels becoming pressure chambers 2 is formed of a conductive adhesive.

公开(公告)号：JP2002019112A

公开(公告)日：2002-01-23

申请号：JP2000211140

申请日：2000-07-12

Applicant: SHARP KK

Inventor： NAKAJIMA YOSHINORI ,  ISONO HITOSHI

IPC: B41J2/045 ,  B41J2/055 ,  B41J2/16

Abstract: PROBLEM TO BE SOLVED: To provide an ink jet device using a shearing mode and a method of making the same wherein the ink jet device can be readily made compared to a conventional structure and the whole shape thereof can be miniaturized. SOLUTION: The ink jet device includes a driving region L1 and a common ink chamber region L2. The ink jet device is equipped with an actuator member 1 having a plurality of channel grooves 32 partitioned by channel walls 300 and a cover member 5 for closing an opening section opposing the bottom faces of the channel grooves 32 in the driving region L1. The top section of the actuator member 1 is recessed by being separated from the cover member 5 in the common ink chamber region L2.

公开(公告)号：JP2001334657A

公开(公告)日：2001-12-04

申请号：JP2000156083

申请日：2000-05-26

Applicant: SHARP KK

Inventor： ISONO HITOSHI ,  NAKAJIMA YOSHINORI

IPC: B41J2/045 ,  B41J2/055

Abstract: PROBLEM TO BE SOLVED: To provide a method for driving an ink jet head improved to suppress variation in the ink drop ejection among ink channels. SOLUTION: Depending on the depth of electrode different from ink channel to ink channel, a drive voltage being applied to each channel is varied continuously or the drive waveform is varied continuously.

公开(公告)号：JP2001134027A

公开(公告)日：2001-05-18

申请号：JP2000142663

申请日：2000-05-16

Applicant: SHARP KK

Inventor： IWAMATSU TADASHI ,  TOYOSHIMA TETSURO ,  AZUMA NOBUYUKI ,  MUTO YOSHINORI ,  NAKAJIMA YOSHINORI

IPC: B41J2/44 ,  G03G5/047 ,  G03G9/08 ,  G03G15/00 ,  G03G15/04 ,  G03G15/043 ,  G03G15/32 ,  H04N1/29

Abstract: PROBLEM TO BE SOLVED: To provide a high-quality image forming device capable of faithfully reproducing a high-resolution image pattern over 600 to 1200 DpI. SOLUTION: In this image forming device, the diameter W of the peak intensity 1/e2 of an exposing beam used in an exposure device is twice or less times as large as (p), the value of a latent image spatial frequency characteristic function MTFltnt defined by the film thickness (1) of the photoreceptor and the dielectric constant εa of the photoreceptor, the thickness (m) of a developer layer and the dielectric constant εb of the developer layer and spatial frequency ωdefined by ω=ρ/p is >=0.3.