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公开(公告)号：CA2117849A1
公开(公告)日：1995-04-14
申请号：CA2117849
申请日：1994-10-11
Applicant: CANON KK
Inventor： SHIMOMURA AKIHIKO , TOGANOH SHIGEO , MASUDA KAZUAKI , TAKENOUCHI MASANORI , MAEOKA KUNIHIKO , HIGUMA MASAHIKO , AONO KENJI , TANEYA YOICHI , MIYAGAWA MASASHI
IPC: B41J2/175 , B41J2/01 , C08L101/00 , C08L101/08 , C08L101/10 , C09K3/10
Abstract: An ink jet head comprises parts for holding liquid ink, the parts being sealed with a moisture-curing sealant composed mainly of an organic high polymer compound having an alkoxysilane moiety represented by Formula (1) in the molecule thereof: where X is hydrogen, methyl, ethyl, propyl or halogen; R is methyl, ethyl or propyl; and n is 1, 2 or 3.
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公开(公告)号：DE60135716D1
公开(公告)日：2008-10-23
申请号：DE60135716
申请日：2001-07-30
Applicant: CANON KK
Inventor： SUGIYAMA HIROYUKI , ISHINAGA HIROYUKI , MISUMI YOSHINORI , TANEYA YOICHI
Abstract: In a liquid discharge head having a movable member positioned oppositely to a heating element with a distance from the heating element to realize the liquid discharge head, in which durability of a movable member is improved and discharge characteristic is stable, and reliability is high. On a device substrate on which a plurality of heating elements are mounted in parallel, a deposition film is formed by photolithographic technique to form a movable member 6, by soaking the movable member 6 in an etching solution after formation of the movable member 6, a right-angled part and an acute-angled part, and a burr formed on the edge of a side part of the movable member 6 are removed to make a surface of the side part of the movable member 6 to the curved face 11. When the movable member 6 is displaced by a pressure created by a bubble generated by the heating element to discharge ink from a discharge port and the movable member 6 is excessively displaced, when a stress according to the displacement of the movable member 6 is added to the movable member 6, a stress concentration is relaxed in the side part of the movable member 6 and consequently, it is prevented to cause cracks in the movable member 6 and fracture of the movable member 6.
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公开(公告)号：DE69936025D1
公开(公告)日：2007-06-21
申请号：DE69936025
申请日：1999-08-20
Applicant: CANON KK
Inventor： SHIMAZU SATOSHI , SUGAMA SADAYUKI , ISHINAGA HIROYUKI , TANEYA YOICHI , SUGIYAMA HIROYUKI
Abstract: A liquid discharge head comprises heating members for generating thermal energy to create bubbles in liquid, discharge ports forming the portions to discharge the liquid, liquid flow paths communicated with the discharge ports, at the same time, having bubble generation areas for enabling liquid to create bubbles, movable members arranged in the bubble generation areas to be displaced along with the development of the bubbles, and regulating members to regulate the displacement of each of the movable members within a desired range, and with energy at the time of bubble creation, the liquid being discharged from the discharge ports. For this liquid discharge head, each of the liquid flow paths holds bubbles at the time of bubbling, at the same time, being provided with gaps arranged on the sides of the movable member to allow the liquid on the upstream thereof to flow into the bubble generation area at the time of bubble disappearing. With the structure thus arranged, the meniscus is drawn into the liquid flow path quickly immediately after the bubble disappearing of bubble begins, and then, with a strong force of the meniscus, the trailing portion of the liquid column connected with the discharged droplet is cut off outside the discharge port, hence making the number of satellites smaller for the enhancement of the quality of prints.
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公开(公告)号：DE69934845D1
公开(公告)日：2007-03-08
申请号：DE69934845
申请日：1999-07-28
Applicant: CANON KK
Inventor： TANEYA YOICHI , ISHINAGA HIROYUKI , SUGIYAMA HIROYUKI , SUGAMA SADAYUKI , SHIMAZU SATOSHI
Abstract: A liquid discharging head which discharges a liquid through a discharging port utilizing an energy generated by producing air bubble including side walls which are to be brought into contact with a movable member to restrict upstream growth of a bubble, thereby stabilizing liquid discharge.
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公开(公告)号：DE69828923T2
公开(公告)日：2006-04-06
申请号：DE69828923
申请日：1998-07-30
Applicant: CANON KK
Inventor： ISHINAGA HIROYUKI , KASHINO TOSHIO , TANEYA YOICHI , SUGIYAMA HIROYUKI
Abstract: This specification discloses a liquid discharging method of discharging liquid from a discharge port for discharging the liquid by a liquid discharging element in a first liquid flow path communicating with the discharge port for supplying the liquid to the discharge port, characterized by the use of a variable member for causing negative pressure to act on the first liquid flow path. The specification also discloses a liquid discharging head having a discharge port (18) for discharging liquid therethrough, a first bubble creating area (15) for creating a first bubble in the liquid, and a first liquid flow path (10) provided with the first bubble creating area and communicating with the discharge port, the liquid in the first liquid flow path being discharged through the discharge port by the creation of the first bubble, characterized by a second bubble creating area (11) for creating a second bubble in the liquid, a second liquid flow path (16) provided with the second bubble creating area, and negative pressure acting means using a variable member provided between the first liquid flow path and the second liquid flow path for causing only negative pressure to act in the first liquid flow path by the disappearance of the second bubble. The specification also discloses a head cartridge and a liquid discharging apparatus using such liquid discharging head.
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Patent Agency Ranking
公开(公告)号：DE69831442D1
公开(公告)日：2005-10-13
申请号：DE69831442
申请日：1998-06-05
Applicant: CANON KK
Inventor： ISHINAGA HIROYUKI , KASHINO TOSHIO , YOSHIHIRA AYA , KUDO KIYOMITSU , TANEYA YOICHI , SHIMAZU SATOSHI
Abstract: A liquid discharge head is provided which allows production of a recorded image of improved quality by controlling the speed of flow of a liquid and the distribution of the speed of flow in a flow path caused in consequence of contraction of bubbles thereby stabilizing the direction of satellites arising behind main drops of discharged liquid and, at the same time, decreasing the amount itself of the satellites. This liquid discharge head comprises a movable separation membrane capable of effecting separation between a first flow path (3) communicating with a discharge port (11) for discharging a liquid and a second flow path (4) furnished with a bubble generating region for generating bubbles in the liquid by means of a heating element (2) and a movable member (26) opposed to the bubble generating region across the movable separation membrane (5) and furnished in the direction of liquid discharge with a free end to guide the displacement of the movable separation membrane induced by the growth of the bubbles in the direction of the discharge port and regulate the shape of displacement of the movable separation membrane as well.
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公开(公告)号：DE60014272T2
公开(公告)日：2005-10-06
申请号：DE60014272
申请日：2000-07-27
Applicant: CANON KK
Inventor： MISUMI YOSHINORI , ISHINAGA HIROYUKI , TANEYA YOICHI , SUGIYAMA HIROYUKI , SHIMAZU SATOSHI
Abstract: The invention is vary the amount of the liquid discharged from a same discharge port, thereby realizing recording of multi gradation levels. After the discharge of a first liquid droplet (66a), a second liquid droplet (66b) is discharged while the movable member (31) is still in a displaced state. In comparison with the first liquid droplet (66a), the second liquid droplet (66b) has a larger discharge energy and a larger speed, because the moving energy of the movable member (31) and the energy consumed for the liquid flow opposite to the discharge port (18) are smaller. Thus the first and second droplets are united to form a united droplet (66d) before landing on the recording medium (150). In this manner the amount of the discharged liquid can be varied.
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公开(公告)号：DE69830700D1
公开(公告)日：2005-08-04
申请号：DE69830700
申请日：1998-12-04
Applicant: CANON KK
Inventor： TANEYA YOICHI , OGAWA MASAHIKO , IKEDA MASAMI , SAITO ICHIRO , ISHINAGA HIROYUKI , KASHINO TOSHIO , HIROKI TOMOYUKI , IMANAKA YOSHIYUKI , OZAKI TERUO , KUBOTA MASAHIKO , YOSHIHIRA AYA , KUDO KIYOMITSU , SUGIYAMA HIROYUKI
Abstract: A liquid discharging head comprises a discharging port for discharging liquid, a liquid flow path communicated with said discharging port, a bubble generating region for causing the liquid to generate a bubble and a movable member having provided thereon a free end disposed facing to said bubble generating region, and on the downstream of said liquid flow path directed toward said discharging port. At least when said movable member is in stationary state, a side of said liquid flow path corresponding to said bubble generating region is substantially composed of all with a wall face and common communicating space for commonly communicating said liquid flow path with a neighboring liquid flow path is provided in the upward of a movable section of said movable member.
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公开(公告)号：CA2280547C
公开(公告)日：2005-03-01
申请号：CA2280547
申请日：1999-08-20
Applicant: CANON KK
Inventor： SHIMAZU SATOSHI , TANEYA YOICHI , SUGIYAMA HIROYUKI , ISHINAGA HIROYUKI , SUGAMA SADAYUKI
Abstract: A liquid discharge head comprises heating members for generating thermal energy to create bubbles in liquid, discharge ports forming the portions to discharge the liquid, liquid flow paths communicated with the discharge ports, at the same time, having bubble generation areas for enabling liquid to create bubbles, movable members arranged in the bubble generation areas to be displaced along with the development of the bubbles, and regulating members to regulate the displacement of each of the movable members within a desired range, and with energy at the time of bubble creation, the liquid being discharged from the discharge ports. For this liquid discharge head, each of the liquid flow paths holds bubbles while bubbling, at the same time, being provided with gaps arranged on the sides of the movable member to allow the liquid on the upstream thereof to flow into the bubble generation area while bubble disappearing. With the structure thus arranged, the meniscus is drawn into the liquid flow path quickly immediately after the bubble disappearing of bubble begins, and then, with a strong force of the meniscus, the trailing portion of the liquid column connected with the discharged droplet is cut off outside the discharge port, hence making the number of satellites smaller for the enhancement of the quality of prints.
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公开(公告)号：DE60016503D1
公开(公告)日：2005-01-13
申请号：DE60016503
申请日：2000-06-02
Applicant: CANON KK
Inventor： IMANAKA YOSHIYUKI , YAMANAKA AKIHIRO , OZAKI TERUO , KUBOTA MASAHIKO , WATANABE SHINJI , TANEYA YOICHI , SUGIYAMA HIROYUKI
Abstract: The present invention provides a liquid discharge head comprising a plurality of discharge ports for discharging liquid, first and second substrates for defining a plurality of liquid flow paths communicated with the discharge ports, and a plurality of energy converting elements disposed in the liquid flow paths and adapted to convert electrical energy into discharge energy for liquids in the liquid flow paths, wherein sensors for detecting behavior of the liquid are provided in the respective liquid flow paths as solid structure portions protruded from walls of the liquid flow paths.
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