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41. 发明专利

JPH1191093A INK JET RECORDER 失效
公开(公告)号：JPH1191093A
公开(公告)日：1999-04-06
申请号：JP25572297
申请日：1997-09-19
申请人： TOSHIBA CORP
发明人： AMAMIYA ISAO , TANUMA CHIAKI , SAITO SHIRO , MORI KENICHI , YAGI HITOSHI , YAMAMOTO NORIKO
IPC分类号： B41J2/045 , B41J2/015 , B41J2/055 , B41J2/14
摘要： PROBLEM TO BE SOLVED: To obtain a high resolution image by setting the depth of an ink liquid within an allowable range of focal length corresponding to the sound pressure range where the allowable range of an ultrasonic sound pressure of first and second simultaneous driving groups overlaps and adjusting the eigen- focal length of an ultrasonic focusing means thereby making uniform the ink dot diameter. SOLUTION: Ultrasonic wave is generated from a piezoelectric 12 at a head section and focused, in the sub-scanning direction, through an acoustic lens 15 on the piezoelectric 12 and, in the main scanning direction, through a plurality of piezoelectric elements being driven simultaneously (simultaneous driving group). An ink drop is jetted while making a switch between a first driving mode for driving even number of piezoelectric elements sequentially and selectively as simultaneous driving group and a second driving mode for driving odd number of piezoelectric elements. Eigen focal length of the acoustic lens 15 is adjusted such that the depth of ink liquid is set within an allowable range of focal length corresponding to the sound pressure range where the allowable range of ultrasonic sound pressure of first and second simultaneous driving groups overlaps.

42. 发明专利

JPH09248908A INK-JET RECORDING APPARATUS 失效
公开(公告)号：JPH09248908A
公开(公告)日：1997-09-22
申请号：JP5764696
申请日：1996-03-14
申请人： TOSHIBA CORP
发明人： AMAMIYA ISAO , TANUMA CHIAKI , SAITO SHIRO , KUDO NORIKO , YAGI HITOSHI
IPC分类号： B41J2/175 , B41J2/015 , B41J2/14
摘要： PROBLEM TO BE SOLVED: To jet and fly ink drops highly efficiently and with high speed by making the acoustic impedance of the inner wall face being brought into contact with a liq. ink in an ink holding room at most a specified value of the acoustic impedance of the liq. ink. SOLUTION: An ultrasonic generating means is constituted of an individual piezoelectric element 11 and individual and common electrodes 13 and 14 are connected with a driving circuit 16 and a one dimensional Fresnel lens 17 as an acoustic lens is formed on the piezoelectric element 11 through a common electrode 14. A slit panel 19 is provided on the Fresnel lens 17 to constitute a continuous room with no partition wall in the arranging direction of the piezoelectric element 11 and an ink holding room 18 wherein the inner wall face has a slope in such a way that the width of opening on the inner wall face is gradually narrowed from the piezoelectric element 11 side to the ink liq. 20 face side, is formed. In addition, the acoustic impedance of the inner wall being brought into contact with the ink in the ink holding room 18 is made at most 10-fold of the acoustic impedance of the liq. ink. It is possible thereby to decrease enough reflection strength of the ultrasonic wave on the inner wall and to improve flying efficiency of the ink drops.

43. 发明专利

JPH0994957A INK JET RECORDING APPARATUS 失效
公开(公告)号：JPH0994957A
公开(公告)日：1997-04-08
申请号：JP25329595
申请日：1995-09-29
申请人： TOSHIBA CORP
发明人： TANUMA CHIAKI , SAITO SHIRO , AMAMIYA ISAO , KUDO NORIKO , YAGI HITOSHI
IPC分类号： B41J2/045 , B41J2/015 , B41J2/055
摘要： PROBLEM TO BE SOLVED: To enable high speed ink jet recording by driving ultrasonic waves from a specific number of piezoelectric elements to provide phase difference between the piezoelectric elements and driving a specific piezoelectric elements to allow a large number of ink droplets to fly at the same time. SOLUTION: The bundle of the components of ultrasonic waves generated from piezoelectric elements in a main scanning direction consists (m) piezoelectric elements and a first drive mode is performed by applying drive voltage individual electrodes 3 from a drive means 6 through wiring 9, for example, in timing such that the ultrasonic beams generated from the respective piezoelectric elements of a piezoelectric element group driving at the same time is converged to one point in the vicinity of the liquid surface of ink. Other than the first drive mode, a second drive mode allowing two or more ink droplets to fly by below (m) piezoelectric elements is provided. The second drive mode drives M (M

44. 发明专利

JPH08238764A INK-JET RCORDER 失效
公开(公告)号：JPH08238764A
公开(公告)日：1996-09-17
申请号：JP4566195
申请日：1995-03-06
申请人： TOSHIBA CORP
发明人： AMAMIYA ISAO , SAITO SHIRO , KUDO NORIKO
IPC分类号： B41J2/045 , B41J2/055 , B41J2/14
摘要： PURPOSE: To permit recording with twice the resolution by providing the first drive mode which drives an even number of piezoelectric elements of a piezoelectric element array simultaneously and the second drive mode which drives an odd number of piezoelectric elements simultaneously. CONSTITUTION: A piezoelectric array 10 has common and discrete electrodes formed on both faces of a long sheet piezoelectric body and a drive IC 17 which is connected to the common and discrete electrodes on the bottom face of an acoustic lens through a wiring pattern. Of the piezoelectric element array, recording is made by making an action of driving simultaneously a piezoelectric element group consisting of neighboring multiple piezoelectric elements to be performed while sliding the position of a group of piezoelectric elements. At that point, a group of an even number of piezoelectric elements and a group of an odd number of piezoelectric elements are driven by the first and second drive modes which drive them simultaneously so that the center of ultrasonic beams radiated from piezoelectric element groups may be that of the piezoelectric element groups to attain a recording of high resolution.

45. 发明专利

JPH07253409A SELECTIVITY COEFFICIENT MEASURING METHOD 失效
公开(公告)号：JPH07253409A
公开(公告)日：1995-10-03
申请号：JP4257694
申请日：1994-03-14
申请人： TOSHIBA CORP
发明人： AMAMIYA ISAO , SATO TOMOKO
IPC分类号： G01N27/416 , G01N27/26
摘要： PURPOSE:To provide a method for measuring simple and accurate selectivity coefficient. CONSTITUTION:When a selectivity coefficient is measured from an output potential of an ion selective electrode by using first, second and third standard liquids in which concentrations are already known, a ratio of a concentration of ions to be measured of the selective electrode in the first liquid to that of disturbing ion having the same ionic valency as that of ions to be measured is made equal to a ratio of a concentration of the ion to be measured of the electrode in the second liquid to that of the disturbing ion having the same ionic valency as that of the ion to be measured, and a ratio of the concentration of the ion to be measured of the electrode in the third liquid to that of the disturbing ion having the same ionic valency as that of the ion to be measured is differentiated.

46. 发明专利

JPH07167818A ION CONCENTRATION MEASURING APPARATUS 失效
公开(公告)号：JPH07167818A
公开(公告)日：1995-07-04
申请号：JP31660293
申请日：1993-12-16
申请人： TOSHIBA CORP
发明人： AMAMIYA ISAO , SATO TOMOKO , KIKUCHI HIROSHI
IPC分类号： G01N27/26 , G01N27/27 , G01N27/416
摘要： PURPOSE:To measure concentration with the removal of the effect of interfering ions by storing a known concentration of ions and a selection coefficient of the interfering ions of a plurality of calibration liquids different in concentration by a calibration liquid ion concentration memory means and a selection coefficient memory means to generate calibration curve formulas of sensors. CONSTITUTION:A user inputs a known concentration of ions of first and second calibration liquids 3 and 5 and a selection coefficient for interfering ions from an input device 15 to be stored into a memory secion of an arithmetic processor 14. A valve body 2 is opened, a pump 12 is operated to bring the first calibration liquid 3 into a solution passage 1 and an output potential is measured from outputs of sensors 8-10 and an output of a reference electrode 11. Then. the valve body 2 is closed and a valve body 4 is opened to measure an output potential by the same method. Calibration curve formulas of the respective ion serfsors are generated from the potential measured. the known concentration of ions and the known selection coefficient. Thereafter, a valve body 6 is opened and a sample liquid 7 is treated to measure output potentials of the sensors 8-10 by the same method. The results and an output of the electrode 11 are substituted into the calibration curve formula of a device 14 to determine ion concentrations of the sensors 8-10.

47. 发明专利

JP2003090965A IMAGE DISPLAY DEVICE 审中-公开
公开(公告)号：JP2003090965A
公开(公告)日：2003-03-28
申请号：JP2001282339
申请日：2001-09-17
申请人： TOSHIBA CORP
发明人： AMAMIYA ISAO , MORI KENICHI , SUGAWARA ATSUSHI
IPC分类号： G02B26/00 , G09F9/37 , G09G3/00 , G09G3/34
摘要： PROBLEM TO BE SOLVED: To achieve simplification and power-saving by preventing the construction from becoming increasingly complex due to elongated electrode wiring, etc., and reducing the electric power for continuing display of a fixed image. SOLUTION: The image display device is provided with: a large number of pixels arranged in a matrix shape and fixed films (fixed bodies) 11 arranged in a large number in the position corresponding to the pixels with a predetermined gap and having the surface colored in a first color; a large number of movable films (movable bodies) 12 which are inserted and pulled out from the back surfaces of the fixed films 11 over the upper surfaces of the fixed films 11 through gaps, are superimposed on the surface of respective fixed films 11 and are colored in a second color; support films (support bodies) 13 which allow the movable films 12 to be inserted and pulled out into/from respective gaps by supporting the respective movable films 12 turnably and turning them on the back surfaces of the fixed films 11; and a turning angle switchover device 18 being a means to change the turning angle of the support film 13.

48. 发明专利

JPH11151810A INK JET RECORDING DEVICE 失效
公开(公告)号：JPH11151810A
公开(公告)日：1999-06-08
申请号：JP32069997
申请日：1997-11-21
申请人： TOSHIBA CORP
发明人： YAMAMOTO NORIKO , TANUMA CHIAKI , SAITO SHIRO , AMAMIYA ISAO , YAGI HITOSHI
IPC分类号： B41J2/015 , B41J2/14
摘要： PROBLEM TO BE SOLVED: To permit droplets to fly high efficiently by setting focusing means for focusing ultrasonic wave radiated from ultrasonic wave generating means connected acoustically to liquid ink, and specifying the focusing distance of the focusing means. SOLUTION: A member having electrodes 2 formed on both surfaces of a concave piezoelectric element 1 is placed on a packing material 4, and an acoustic matching layer 3 is formed on a surface opposite to the packing material 4. Ink liquid 5 is filled in an ink chamber surrounded by the acoustic matching layer 3 and side walls 7, and by controlling the supply rate of ink liquid 5 to the ink chamber, a distance between the ultrasonic wave radiation surface and the ink liquid surface is varied. In this case, in order to raise the efficiency of fly of ink droplets, a distance from a ultrasonic wave radiation surface to an ink liquid level 6 is set shorter than a focusing distance 8. Namely, as a distance between the ink liquid level 6 and the ultrasonic wave generating means is made (d) and the focusing distance 8 is FO, FO >(d) is obtained, and as a wavelength of the supersonic wave is made λ, FO>(d)+λ and FO

49. 发明专利

JPH10250110A INK JET RECORDING APPARATUS 失效
公开(公告)号：JPH10250110A
公开(公告)日：1998-09-22
申请号：JP6138797
申请日：1997-03-14
申请人： TOSHIBA CORP
发明人： YAMAMOTO NORIKO , TANUMA CHIAKI , SAITO SHIRO , AMAMIYA ISAO , YAGI HITOSHI
IPC分类号： B41J2/175 , B41J2/015 , B41J2/14
摘要： PROBLEM TO BE SOLVED: To maintain a printing state favorably by circulating an ink liquid without providing any special means even in the case where the apparatus is not used for a long period of time. SOLUTION: A drive circuit 21 is provided which applies a second drive signal to a piezoelectric element 14. This second drive signal is different from a signal which is applied to the piezoelectric element 14 to generate an ultrasonic wave for discharging an ink liquid 16, thereby performing image recording, and drives the piezoelectric element 14 to generate the ultrasonic wave, but is sufficient enough to circulate the ink liquid 16 in an ink holding chamber 18 without discharging the ink liquid 16 from an ink liquid level.

50. 发明专利

JPH09136412A INK-JET RECORDING APPARATUS 失效
公开(公告)号：JPH09136412A
公开(公告)日：1997-05-27
申请号：JP24379296
申请日：1996-09-13
申请人： TOSHIBA CORP
发明人： SAITO SHIRO , TANUMA CHIAKI , AMAMIYA ISAO , KUDO NORIKO , YAGI HITOSHI , TAKAYAMA AKIRA
IPC分类号： B41J2/175 , B41J2/015 , B41J2/14
摘要： PROBLEM TO BE SOLVED: To increase recording speed by shortening the time required for ink drops to fly after a piezoelectric element is driven. SOLUTION: A common electrode 2 and an individual electrode 3 are formed at both faces of a piezoelectric body 1, which is formed on a backing material 8. An acoustic matching layer 4 is formed at an opposite face of the common electrode 2 to the piezoelectric body. An ink solution chamber is defined by the acoustic matching layer (acoustic lens) 4 and side walls 7 and filled with an ink 5. A driving circuit 6 is formed on the backing material 8 and connected to the common electrode 2 and the individual electrode 3. An aperture D1 of the acoustic lens 4 and a distance L between the acoustic lens 4 and an ink face satisfies a relation of L/D1

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