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11. 发明专利

JP2002235022A INK-JET PRINTER AND INK COMPOSITION USED THEREFOR 失效
公开(公告)号：JP2002235022A
公开(公告)日：2002-08-23
申请号：JP2001033079
申请日：2001-02-09
申请人： HITACHI KOKI KK
发明人： OUCHI AKIYOSHI , MAEKAWA TSUTOMU , TAMAHASHI KUNIHIRO , TSUNODA ATSUSHI
IPC分类号： B41J2/01 , B41M5/00 , B41M5/50 , B41M5/52 , C09D11/00 , C09D11/322 , C09D11/324
摘要： PROBLEM TO BE SOLVED: To obtain an ink composition useful for an ink-jet recording method having high-speed, high-reliability printing qualities and high weather resistance, and to provide a recording method. SOLUTION: In the ink-jet printer with which ink drips are attached to plain paper and recording is carried out, the ink composition which comprises at least water, a pigment and a water-soluble organic solvent, has a weight loss ratio of the ink composition at 25 deg.C/60RH% for 24 hours of 10-40% of the total of ink, increases a surface tension at 25 deg.C by >=1 mN/m from an initial value and a viscosity at 25 deg.C within 150% of an initial value is applied to the printer.

12. 发明专利

JPH10166599A MANUFACTURE OF INK JET PRINTING HEAD 失效
公开(公告)号：JPH10166599A
公开(公告)日：1998-06-23
申请号：JP33695396
申请日：1996-12-17
申请人： HITACHI KOKI KK
发明人： TAMAHASHI KUNIHIRO , WATANABE KEIJI , TORII TAKUJI , NOTO NOBUHIRO , AKIMOTO KAZUAKI , AKIYAMA YOSHITAKA , HISAGAI KENJI , KUROSAWA NOBUHIRO , MATSUOKA TAKAO
IPC分类号： B41J2/045 , B41J2/055 , B41J2/16
摘要： PROBLEM TO BE SOLVED: To establish technique for sticking sheets together of high reliability for long period of time concerning lead of ink while rise of a cost is restrained comparatively less by a method wherein metallic bonding is used when a component adjacent to a diaphragm is struck to the diaphragm, and an adhesive is used for sticking another component together. SOLUTION: A printing head is composed of a diaphragm 3, a restrictor 7 controlling flow of ink into a pressure chamber 2, a restrictor plate 10, an orifice plate 12, a support plate 13 reinforcing the diaphragm 3, etc. Among them, the diaphragm 3, the restrictor plate 10 adjacent thereto, and the support pate 13 are made of stainless material, and metrical bond is carried out when stuck together to the diaphragm 3. The other part is stuck together by use of an adhesive. Further, the plates 3, 10, 13 are made of stainless material. For metallical bond thereof, after cleaning with alkali degreasing, nickel and copper plating are carried, a sliver film is formed, and they are bonded together by heating under pressure with a press machine.

13. 发明专利

JPH09164692A SOLDER JOINTING METHOD OF INK JET PRINT HEAD 失效
公开(公告)号：JPH09164692A
公开(公告)日：1997-06-24
申请号：JP32670395
申请日：1995-12-15
申请人： HITACHI KOKI KK
发明人： WATANABE KEIJI , TAMAHASHI KUNIHIRO
IPC分类号： B41J2/16 , B41J2/015
摘要： PROBLEM TO BE SOLVED: To form a uniform thickness, reduce absorbing gas, and heighten adhesion to a ground by using a solder-clad cladding material for a joint surface of a thin plate, and layering it so as to joint. SOLUTION: A joint surface of a thin plate which forms an ink passage of an ink jet head is formed by layering and jointing a cladding material whose surface is directly clad with a solder 5. In a method for cladding the thin plate with the solder 5, the melted solder 5 is laid on the surface of the thin plate activated by a flux, and cooled. Next, these are positioned and temporarily fixed by spot welding with an orifice plate 1 of the thin plate, a restrictor plate 2, a diaphragm plate 3, and a filter plate 4 in this order. It is heated in a vacuum furnace, loaded with welding force, and heated to a predetermined temperature. Thereafter, it is held for a predetermine time and cooled. The clad solder on the thin plate has one or more layer. After jointing, for a composition of the solder layer, any base of In-Sn, Pb-Sn, Au-Sn, Ag-Sn, and Sn is used as a main component.

14. 发明专利

JPH0970978A PROCESSING OF DRIVE ELEMENT FOR INK JET PRINTING HEAD 失效
公开(公告)号：JPH0970978A
公开(公告)日：1997-03-18
申请号：JP23093795
申请日：1995-09-08
申请人： HITACHI KOKI KK
发明人： TACHIBANA YOSHIAKI , DEGUCHI MASANORI , TAMAHASHI KUNIHIRO , NAGATA JUN , HAYASHI KAZUNOBU , YAMADA KENJI , HISAGAI KENICHI , SHIMIZU MASAFUMI
IPC分类号： B41J2/045 , B41J2/055 , B41J2/16
摘要： PROBLEM TO BE SOLVED: To safely process a piezoelectric element certainly and finely by adding a process bonding a cutting auxiliary member to an electromechanical conversion element as a front-process of cutting processing. SOLUTION: A laminated piezoelectric element 4 and ceramic 5 are bonded and a cutting auxiliary member 6 is bonded and fixed to the piezoelectric element 4 to take the continuity of the surface of the ceramic with a plating surface. A material solidified at the normal temp. and exerting no adverse effect on the operation of the piezoelectric element like grease or silicone resin melted, for example, at 100 deg.C or lower is injected and used as the holding material of the piezoelectric element at a time of cutting processing. By this constitution, the piezoelectric element 4 can be easily cut and the breakage of the piezoelectric element 4 in a process for forming individual electrodes and a common electrode, that is, a flexible substrate attaching process or other process is avoided.

15. 发明专利

JPH06121553A PIEZOELECTRIC MOTOR 失效
公开(公告)号：JPH06121553A
公开(公告)日：1994-04-28
申请号：JP16077992
申请日：1992-06-19
申请人： HITACHI KOKI KK
发明人： NAGATA JUN , SATO TAKASHI , TAMAHASHI KUNIHIRO
IPC分类号： H02N2/00
摘要： PURPOSE:To obtain a piezoelectric motor in which torque can be generated independently from the number of revolutions while realizing downsizing by coupling a rotor directly with the shaft. CONSTITUTION:A torsional actuator 1 is employed as a shaft and coupled with rotors 2, 3 having outer peripheral parts fixed with piezoelectric pipes 4, 5. When the torsional actuator is subjected to pulsation driving and the piezoelectric pipes 4, 5 are driven alternately, rotational torque can be obtained independently from the number of revolutions while downsizing the motor.

16. 发明专利

JPS6320343B2 失效
公开(公告)号：JPS6320343B2
公开(公告)日：1988-04-27
申请号：JP13770480
申请日：1980-10-03
申请人： HITACHI SEISAKUSHO KK , HITACHI KOKI KK
发明人： KONUMA SHIGEHARU , TAMAHASHI KUNIHIRO , HOSOYA AKIRA , TSUNODA ATSUSHI , MORI YASUKI , MORISHITA YASUSADA
IPC分类号： G03G5/00 , G03G5/08 , G03G5/10

17. 发明专利

JP2003182111A INK AND INK TANK 审中-公开
公开(公告)号：JP2003182111A
公开(公告)日：2003-07-03
申请号：JP2001389809
申请日：2001-12-21
申请人： HITACHI KOKI KK , HITACHI PRINTING SOLUTIONS LTD
发明人： OUCHI AKIYOSHI , MAEKAWA TSUTOMU , FUJII HIDETOSHI , SATO KUNIO , KIDA HITOSHI , TAMAHASHI KUNIHIRO
IPC分类号： B41J2/175 , B41J2/01 , B41M5/00 , B65D23/08 , C09D11/00 , C09D11/30
摘要： PROBLEM TO BE SOLVED: To provide a highly reliable ink exhibiting high safety, and an ink tank containing such an ink with good performance while exhibiting excellent visibility in which unnecessary constituents are reduced. SOLUTION: The ink tank for containing ink transmits visible light and UV-rays and a UV-ray cut film for reducing UV-rays is applied tightly to the tank. The UV-ray cut film is a film or a coating and preferably reduces UV- rays by 80% or more. The ink contains at least acrylate or methacrylate exhibiting primary skin stimulation rate not higher than 6. COPYRIGHT: (C)2003,JPO

18. 发明专利

JP2003136831A INK JET RECORDER 审中-公开
公开(公告)号：JP2003136831A
公开(公告)日：2003-05-14
申请号：JP2001337778
申请日：2001-11-02
申请人： HITACHI KOKI KK
发明人： MAEKAWA TSUTOMU , OUCHI AKIYOSHI , FUJII HIDETOSHI , TAMAHASHI KUNIHIRO
IPC分类号： B41J2/01 , B41J2/175 , B41M5/00 , C09D11/00 , C09D11/322 , C09D11/324
摘要： PROBLEM TO BE SOLVED: To solve the problem that, when a nozzle having a long interval of discharging occurs, an ink is dried and thickened near the meniscus of the nozzle to cause the ink not to be discharged so that the image quality is deteriorated. SOLUTION: The ink jet recorder uses an ink composition of a liquid component containing water, a high melting point organic solvent, and a surface- oxidized self-dispersion pigment in such a manner that the boiling point of the solvent is 120 deg.C or higher, 40 to 70 wt.% of the solvent is blended in the entire weight of the ink and except the pigment. The liquid component has a melting point of 20 deg.C or lower.

19. 发明专利

JP2003112439A INK JET RECORDER 审中-公开
公开(公告)号：JP2003112439A
公开(公告)日：2003-04-15
申请号：JP2001309969
申请日：2001-10-05
申请人： HITACHI KOKI KK
发明人： OUCHI AKIYOSHI , MAEKAWA TSUTOMU , TAMAHASHI KUNIHIRO , TSUNODA ATSUSHI
IPC分类号： B41J2/21 , B41J2/01 , B41M5/00
摘要： PROBLEM TO BE SOLVED: To provide a low-power hybrid printer using an ink set of ink jet ink compositions which prevents a black ink from mixing (bleeding) with the other color ink particularly at a color printing time in an ink jet printer, enables high-speed recording independently of a body to be recorded, is liquid at room temperatures and sets by applying light such as ultraviolet rays or electron beams. SOLUTION: The ink set is used, which comprises both the ink composition which includes at least carbon black and is liquid at the room temperature, and the ink composition which sets by applying light such as ultraviolet rays or electron beams.

20. 发明专利

JP2001253101A IMPACT PRINTER HEAD 失效
公开(公告)号：JP2001253101A
公开(公告)日：2001-09-18
申请号：JP2000065817
申请日：2000-03-10
申请人： HITACHI KOKI KK
发明人： TAMAHASHI KUNIHIRO , TACHIBANA YOSHIAKI
IPC分类号： B41J2/25
摘要： PROBLEM TO BE SOLVED: To provide a lightweight head material realizing long lifetime of the print pin in an impact printer head and high speed printing. SOLUTION: Attention is paid to a carbon based material having low density, especially amorphous carbon having high hardness, high elasticity and corrosion resistance, as the print pin material of an impact printer head.

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