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1. 发明专利

JPS63280658A PRINTER WITH FUNCTION FOR PRINTING MIRROR IMAGE 失效
公开(公告)号：JPS63280658A
公开(公告)日：1988-11-17
申请号：JP11467987
申请日：1987-05-13
申请人： HITACHI LTD , HITACHI VIDEO ENG
发明人： MATSUDA YASUMASA , TAKADA YUKITO
IPC分类号： B41J2/485 , G06F3/12 , G06K15/02 , G06K15/10
摘要： PURPOSE:To enable a mirror image to be printed by use of a printer for general use, by providing a means for switching a normal image and a mirror image from one to the other, and a means for reversing the vertical relative moving directions of a printing head and a printing material. CONSTITUTION:It is presumed that a printing head is fixed with respect to vertical directions and a printing material is moved upward at the time of printing a normal image. When a mirror image printing switch 18 is set in a mirror image position, a moving direction-reversing circuit 19 reversely rotates an LF (line feed) motor 7, whereby the head is moved downward. In the case of a line printer, merely performing the above operation results in that characters be printed are printed in the form of mirror images inverted upside down without any change in printing information. When the printing material is rotated by 180 deg. and observed, the printed result as a whole is a mirror image. In the case of a matrix printer, a means is further provided for converting the vertical positional relationships of dots of a printing head, as compared with those in the case of printing a normal image, whereby the characters to be printed can be printed in the form of mirror images inverted upside down without any change in printing positions.

2. 发明专利

DE2918737A1 未知
公开(公告)号：DE2918737A1
公开(公告)日：1979-11-15
申请号：DE2918737
申请日：1979-05-09
申请人： HITACHI LTD
发明人： SHIMADA SATOSHI , KAWAKAMI KANJI , MATSUDA YASUMASA , KOUTSUMA TAISAKU , SAGAE SHOUJI , DOI TETSUO , NISHIHARA MOTOHISA , YAMADA TAKAHIRO
IPC分类号： B41J2/055 , B41J2/14 , B41J2/16 , B41J3/04
摘要： A nozzle head of an ink-jet printing apparatus according to the present invention comprises an ink reservoir for storing the ink supplied from an ink tank, a pump chamber provided between said ink reservoir and a nozzle for injecting ink particles, and a fluid diode provided between said ink reservoir and said pump chamber, which are all formed in a same substrate, wherein said pump chamber is caused to change its volume responsive to electric signals so that the ink stored therein is injected from said nozzle, and the ink is prevented from reversely flowing from said pump chamber to said ink reservoir when the volume of the pump chamber is changed, thereby to improve the frequency response of ink particles injected from the nozzle.

3. 发明专利

DE3126372A1 Ink-jet printer 未知
公开(公告)号：DE3126372A1
公开(公告)日：1982-09-02
申请号：DE3126372
申请日：1981-07-03
申请人： HITACHI LTD , HITACHI KOKI KK
发明人： UCHIDA HIROYASU , NAKAMURA RYOJI , ISHIHARA TAMIO , MATSUDA YASUMASA
IPC分类号： B41J2/045 , B41J2/055 , B41J2/14 , B41J3/04
摘要： Ink-jet printer for recording analog information in addition to digital information, with which high quality recording is obtained, a pair of units consisting of a combination of ink feed spaces (3a, 3b) and associated electrostrictive oscillation elements (7a, 7b) being connected parallel to one another or in series to a single common ink ejection channel (2) and these units having in the connection between the print head control frequency and the lowest voltage level which can be applied to the electrostrictive oscillation elements (7a, 7b) for the purpose of ejecting ink droplets from the common ink ejection channel (2) an essentially symmetrical frequency/voltage characteristic.

4. 发明专利

DE2809549A1 未知
公开(公告)号：DE2809549A1
公开(公告)日：1978-10-12
申请号：DE2809549
申请日：1978-03-06
申请人： HITACHI LTD
发明人： TANABE MASANORI , SHIMADA SATOSHI , NISHIHARA MOTOHISA , YAMADA KAZUJI , MATSUDA YASUMASA , SHIMAZOE MICHITAKA , MATSUOKA YOSHITAKA , TAKAHASHI YUKIO , KATOHGI KATSUYA , AI MITSUO
IPC分类号： G01L9/00 , H01L29/84 , H01L41/10

5. 发明专利

DE3530207A1 未知
公开(公告)号：DE3530207A1
公开(公告)日：1986-03-06
申请号：DE3530207
申请日：1985-08-23
申请人： HITACHI LTD , HITACHI KOKI KK , HITACHI SEIKO KK
发明人： YAMADA TAKAHIRO , NAMEKAWA SATOSHI , YOSHINO EIJI , MATSUDA YASUMASA
IPC分类号： B41J2/115 , B41J2/12 , B41J3/04

6. 发明专利

DE3126351A1 未知
公开(公告)号：DE3126351A1
公开(公告)日：1982-06-16
申请号：DE3126351
申请日：1981-07-03
申请人： HITACHI LTD , HITACHI KOKI KK
发明人： MATSUDA YASUMASA , SAGAE SYOJI , KASAHARA MASATOSHI , UCHIDA HIROYASU
IPC分类号： B41J2/045 , B41J2/055 , B41J2/14 , B41J3/04
摘要： A drop jet apparatus has a nozzle head which defines a pressure chamber, a nozzle, and passages. Part of the pressure chamber is defined by a thin diaphragm which is made thick at the central and at a surrounding portion spaced from the central portion. A piezoelectric plate is adhered to the thick portions so as to bridge the thin portion between the projections.

7. 发明专利

DE3564917D1 INK-JET RECORDING APPARATUS 未知
公开(公告)号：DE3564917D1
公开(公告)日：1988-10-20
申请号：DE3564917
申请日：1985-06-20
申请人： HITACHI LTD , HITACHI SEIKO KK
发明人： YOSHINO EIJI , MATSUDA YASUMASA , YAMADA TAKAHIRO
IPC分类号： B41J2/13 , B41J2/125 , B41J3/04
摘要： An ink-jet printer including an ink-jet nozzle (1, 32) for ejecting ink droplets onto the recording paper which is moved relative to the nozzle so that dots of ink are printed in the form of a pattern. The trajectory of flying ink droplets is deflected along the direction of the relative movement under control based on the measurement of the relative movement speed.

8. 发明专利

DE3170016D1 INK JET PRINTING APPARATUS 未知
公开(公告)号：DE3170016D1
公开(公告)日：1985-05-23
申请号：DE3170016
申请日：1981-10-13
申请人： HITACHI LTD , HITACHI KOKI KK
发明人： MATSUDA YASUMASA , SAGAE SYOJI , KASAHARA MASATOSHI
IPC分类号： B41J2/045 , B41J2/055 , B41J3/04
摘要： An ink jet printing apparatus comprises a nozzle head including, orifices for ejecting ink particles, pressure chambers each having a piezoelectric element for applying a pressure wave to ink in the chamber and each communicating with corresponding one of the orifices and an ink chamber communicating with the pressure chambers, and electrical signal applying device for applying an electrical signal to selected one or ones of the piezoelectric elements to produce the pressure waves. The electrical signal applying device applies a main electrical signal pulse to the selected one or ones of the piezoelectric elements for inducing rises of the pressure waves and applies a sub-electrical signal pulse for suppressing the pulsations of the pressure waves a predetermined time interval after the main electrical signal.

9. 发明专利

DE2717052A1 未知
公开(公告)号：DE2717052A1
公开(公告)日：1977-11-10
申请号：DE2717052
申请日：1977-04-18
申请人： HITACHI LTD
发明人： KURIHARA YASUTOSHI , KOSUGI TETUO , KAGAMI TERUYUKI , SHIMADA SATOSHI , MATSUDA YASUMASA , YAMADA KAZUJI
IPC分类号： G01B7/16 , G01L1/22 , G01L9/00 , H01L29/84 , G01L9/04 , G01D5/18
摘要： A semiconductor transducer comprises a semiconductor strain gauge composed of a mono-crystalline semiconducting material and a strain sensing region formed in a first main surface of the mono-crystalline semiconducting material, and a strain measuring member coupled to the semiconductor strain gauge through an alloy material. An electrical insulating layer is attached to a second main surface of the mono-crystalline semiconducting material which is coupled to the strain measuring member through the alloy material. The insulating layer is extended to a side surface of the mono-crystalline semiconducting material thereby to cover the same side.

10. 发明专利

DE3671613D1 未知
公开(公告)号：DE3671613D1
公开(公告)日：1990-07-05
申请号：DE3671613
申请日：1986-03-03
申请人： HITACHI LTD , HITACHI SEIKO KK , HITACHI KOKI KK
发明人： YAMADA TAKAHIRO , NAMEKAWA SATOSHI , YOSHINO EIJI , MATSUDA YASUMASA
IPC分类号： B41J2/07 , B41J2/115 , B41J2/005
摘要： While the excitation voltage (Ve) of an ink jet nozzle is swept on the logarithmic scale, the generation state of ink droplets at a phase θ k is examined (A). An excitation voltage value Vn generating an ink droplet of small diameter (3) at the phase θ k , an excitation voltage value Vn generating an ink droplet of large diameter (2) at the phase θ k , which is lower than vn, and an excitation voltage value Vn + generating on ink droplet of large diameter at the phase θ k , which is higher than vn are stored (B). Difference values expressed asare derived on the logarithmic scale. Then the nozzle excitation voltage is set at such a value as to generate ink droplets and minimize the value of | Wn - wn |.

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