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公开(公告)号：DE69724330T2
公开(公告)日：2004-06-03
申请号：DE69724330
申请日：1997-06-06
Applicant: CANON KK
Inventor： ASAKAWA YOSHIE , YOSHIHIRA AYA , YAMAKAWA KOUJI , ORIKASA TSUYOSHI , ISHINAGA HIROYUKI , KASHINO TOSHIO , KIGAMI HIROYUKI , HAYASAKI KIMIYUKI , FUKAI HISASHI , KUDO KIYOMITSU , ONO TAKAYUKI , OHKAWA MASAYOSHI
Abstract: A liquid ejection head includes an ejection outlet for ejecting liquid; a bubble generating region for generating a bubble; a movable member disposed faced to the bubble generating region and movable between a first position and a second position which is farther form the bubble generating region than the first position; wherein the movable member moves from the first position to the second position by pressure produced by the generation of the bubble to permit expansion of the bubble more in a downstream side closer to the ejection outlet than in an upstream side; and a first common liquid chamber having a height, measured in a direction perpendicular to a plane including the movable member at rest, which is larger than that of the first liquid flow path, wherein the movable member has a fulcrum in the first common liquid chamber and a free end in the first liquid flow path.
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公开(公告)号：DE69726494D1
公开(公告)日：2004-01-15
申请号：DE69726494
申请日：1997-06-09
Applicant: CANON KK
Inventor： ASAKAWA YOSHIE , ONO TAKAYUKI , YAMAKAWA KOJI , ORIKASA TSUYOSHI , KASHINO TOSHIO , KIGAMI HIROYUKI , HAYASAKI KIMIYUKI , FUKAI HISASHI , KUDO KIYOMITSU , OHKAWA MASAYOSHI
Abstract: A method for manufacturing a component provided with a number of liquid paths having movable members for use of liquid discharging comprises the steps of displacing the movable members provided for thin film material by use of such thin film material having the movable members on it, and a component provided with a plurality of recessed portions, and of placing the movable members, which are in the state of being displaced with respect to the recessed portions of the component correspondingly, hence making it possible to fabricate a liquid jet head without damaging or deforming such thin film material constituting the movable members. With the provision of the movable members, the discharging power and efficiency of the liquid jet head are significantly enhanced to obtain recorded images of high quality at higher speeds.
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公开(公告)号：DE69819978D1
公开(公告)日：2004-01-08
申请号：DE69819978
申请日：1998-08-25
Applicant: CANON KK
Inventor： ISHINAGA HIROYUKI , KASHINO TOSHIO , KOYAMA SHUJI
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公开(公告)号：DE68929489D1
公开(公告)日：2003-11-13
申请号：DE68929489
申请日：1989-10-30
Applicant: CANON KK
Inventor： MASUDA KAZUAKI , KUWABARA NOBUYUKI , WATANABE TAKASHI , GOTO AKIRA , KONO HIROSHI , KASHINO TOSHIO , SAITO AKIO , MIDORIKAWA KOYO , OKUMURA TORU , IKEDA MASAMI , KANZAKI TAKASHI
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公开(公告)号：CA2243913C
公开(公告)日：2003-09-30
申请号：CA2243913
申请日：1998-07-27
Applicant: CANON KK
Inventor： KASHINO TOSHIO , ISHINAGA HIROYUKI , SUGIYAMA HIROYUKI , KANEDA TOMOYUKI , TANEYA YOICHI
Abstract: A liquid discharge method is designed for a liquid jet head provided with first discharge openings, a first liquid flow path conductively connected with each of the first discharge openings, first energy generating devices for generating energy for the discharge of droplets from the first discharge openings, second discharge openings, a second liquid flow path conductively connected with each of the second discharge openings, and second energy generating devices for generating energy for the discharge of droplets from the second discharge openings. Then, preceding the discharge of the first droplet from the discharge opening at a first discharge speed V1, the second droplet is discharged from the second discharge opening at a second discharge speed v2 smaller than the first discharge speed, and before each of the liquid droplets being impacted on an object, the first liquid droplet and the second liquid droplet are allowed to collide with each other to be combined. In this way, it becomes possible to allow two droplets to be in contact or to collide with each other reliably to be mixed between the liquid jet head and the object within a range that does not render any hinderance practically even if discharge speeds may fluctuate, hence obtaining precise images in higher quality.
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Patent Agency Ranking
公开(公告)号：CA2242819C
公开(公告)日：2003-09-16
申请号：CA2242819
申请日：1998-07-02
Applicant: CANON KK
Inventor： KASHINO TOSHIO , MIHARA HIROAKI , IKEGAME KEN , MASUDA KAZUAKI , ISHINAGA HIROYUKI , KOYAMA SHUJI
Abstract: A method for manufacturing an orifice plate used for a liquid discharge provided with discharge port for discharging liquid comprises the steps of preparing a non-conductive plate having recessed portion formed on the circumference of the flat portion corresponding to the discharge port, forming a first conductive material peelable from the non-conductive plate only in the recessed portion of the non-conductive plate, forming a plate member by plating the first conductive material with a second conductive material by electroforming method after the formation of the first conductive material, and obtaining the orifice plate having the discharge port by peeling off the plate member from the non-conductive plate. With the method thus arranged, it is possible to materialize the same precision as in the glass mask used for photolithography, and make the variation of orifice areas smaller for the formation of highly densified orifices.
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公开(公告)号：CA2244509C
公开(公告)日：2003-08-05
申请号：CA2244509
申请日：1998-07-29
Applicant: CANON KK
Inventor： KASHINO TOSHIO , TANEYA YOICHI , ISHINAGA HIROYUKI , 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 for discharging liquid therethrough, a first bubble creating area for creating a first bubble in the liquid, and a first liquid flow path 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 for creating a second bubble in the liquid, a second liquid flow path 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 usingsuch liquid discharging head.
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公开(公告)号：DE69626165D1
公开(公告)日：2003-03-20
申请号：DE69626165
申请日：1996-09-20
Applicant: CANON KK
Inventor： NAKATA YOSHIE , KASHINO TOSHIO , OKAZAKI TAKESHI , YOSHIHIRA AYA , KUDO KIYOMITSU
Abstract: A liquid ejection head includes an ejection outlet for ejecting liquid; a bubble generating region for generating a bubble; a movable member disposed faced to the bubble generating region and movable between a first position and a second position which is farther form the bubble generating region than the first position; a liquid supply passage for supplying the liquid to the bubble generating region from upstream of the bubble generating region; an opening, in fluid communication with the supply passage, for discharging the liquid.
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公开(公告)号：CA2209877C
公开(公告)日：2003-03-18
申请号：CA2209877
申请日：1997-07-04
Applicant: CANON KK
Inventor： ISHINAGA HIROYUKI , SUGIYAMA HIROYUKI , ASAI AKIRA , SUGAMA SADAYUKI , KASHINO TOSHIO , KUDO KIYOMITSU
Abstract: A liquid discharging method comprises the step of displacing the free end of the movable member following the creation of air bubble in the air bubble generating area. For this method, the fulcrum of the movable member is positioned on the side different from liquid discharging side with respect to the displacement area for the free end of the movable member to be displaceable, and at the same time, the free end thereof is arranged to face the effective bubbling area positioned on the downstream side of the central portion of the length of the effective bubbling area that forms the bubble generating area in the direction of the movable member from the fulcrum to the free end thereof, and a part of the effective bubbling area positioned to face the free end of the movable member on the downstream side of the effective bubbling area is arranged to face the displacement area directly. Thus, the initiation of the displacement of the free end of the movable member is effectuated quickly and reliably, and the pressure exerted by the air bubble creation is led to the discharge port side and the fulcrum side of the movable member sufficiently at the time of bubbling, and the development of air bubble that follows is directed to the discharge port side more reliably and efficiently.
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公开(公告)号：DE69622217T2
公开(公告)日：2002-12-05
申请号：DE69622217
申请日：1996-04-15
Applicant: CANON KK
Inventor： YOSHIHIRA AYA , SUGITANI HIROSHI , INAMOTO TADAYOSHI , KIMURA MAKIKO , KASHINO TOSHIO , KOYAMA SHUJI , OKAZAKI TAKESHI , KUDO KIYOMITSU , NAKATA YOSHIE , MORI TOSHIHIRO
Abstract: A method produces a liquid ejecting head having an ejection outlet for ejecting a liquid, a heat generating element for applying thermal energy to said liquid, a liquid flow path comprised of a first path portion in fluid communication with said ejection outlet and a second path portion disposed below said first path portion and provided with said heat generating element in a bottom surface thereof, a partition wall for partitioning said liquid flow path into said first path portion and second path portion, and a movable member disposed above said heat generating element in said portion wall and arranged as displaceable to a side of the first path portion in accordance with a bubble generated in the liquid by said thermal energy in which upon generation of said bubble the first path portion and the second path portion are in fluid communication with each other and said pressure is directed toward said ejection outlet by said movable member displaced to eject said liquid droplet. The method comprises a step of preparing a substrate provided with said heat generating element, a step of forming a grooved partition wall having said movable member and side walls of said second path portion, and a step of joining said grooved partition wall to said substrate to form said second path portion.
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