Patents by Inventor Hideo Izawa
Hideo Izawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20090185841Abstract: A toner-fixer apparatus 1 used in an electronic photograph printer includes: an apparatus main unit extending along a web fed in the electronic photograph printer; a hot-air-blower section having air ejection ports for blowing hot air onto the web; and an air-exhaust section for suctioning air into air exhaust ports having openings on the apparatus main unit opposed to the web. In this configuration, the toner-fixer apparatus obtains capabilities in terms of fixing toner used in a multi-color image, thermal efficiency, environmental load, and space saving.Type: ApplicationFiled: January 16, 2009Publication date: July 23, 2009Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.Inventors: Hideo IZAWA, Junichi SETOYAMA, Nobuyuki KIKUCHI
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Publication number: 20090175642Abstract: A toner supplier apparatus 1 is provided for stabilizing the concentration of toner reserved in a main tank. A concentration sensor for measuring the concentration of the toner is provided in a toner-feeding pipeway for supplying liquid toner from a main tank for adjusting the concentration to the developer apparatus. High concentration toner and diluent supplied to the main tank are controlled based on the concentration measured by the concentration sensor. Accordingly, accuracy of the toner supplier apparatus used for an electronic photograph printer in measuring the concentration of the toner can be improved, thereby permitting accurate control for the concentration in a printed image.Type: ApplicationFiled: January 7, 2009Publication date: July 9, 2009Applicant: Miyakoshi Printing Machinery Co., Ltd.Inventors: Hideo Izawa, Sumito Mera, Kotaro Harada, Seiji Komatsuda
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Publication number: 20090169238Abstract: An electrophotographic printer is provided which can be cleaned so as to meet the requirement for high speed printing on a continuous web of paper as the printing medium and to make minimum the amount of toner that remains on the surface of a rotating transfer roller even in high-speed production. To the ends, the printer is provided with a carrier solution supply device disposed in an area upstream of a transfer roller cleaning device in the rotation direction of the rotating transfer roller for supplying the surface of the rotating transfer roller with a carrier solution.Type: ApplicationFiled: December 9, 2008Publication date: July 2, 2009Applicant: Miyakoshi Printing Machinery Co., Ltd.Inventors: Hideo IZAWA, Junichi Setoyama, Nobuyuki Kikuchi
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Publication number: 20090169254Abstract: An electrophotographic printer in which a photoconductor drum and a transfer drum can be supported in a simple component construction and in the makeup free from misalignment and development of thrust load.Type: ApplicationFiled: December 24, 2008Publication date: July 2, 2009Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.Inventors: Hideo Izawa, Junichi Setoyama, Kouichi Ooyama
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Publication number: 20090169271Abstract: An electronic photograph printer is provided for elastically biasing the developer apparatus having the photosensitive drum by the pressing mechanism and for pressing the developer roll onto the photosensitive drum. In this configuration, quality in the developed image can be ensured by the trackable movement of the developer roll relative to the photosensitive drum in the electronic photograph printer. In addition, adjustable range for positioning the developer roll and operability and maintainability within the developer apparatus can be achieved.Type: ApplicationFiled: December 24, 2008Publication date: July 2, 2009Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.Inventors: Hideo IZAWA, Junichi SETOYAMA, Kouichi OOYAMA
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Publication number: 20090169278Abstract: A photoconductor drum cleaning apparatus in an electrophotographic printer is disclosed which is simple in makeup, which allows a wiping roll to be rotated to follow rotation of the photoconductor drum is rotated and to be serviced for a prolonged life and is capable of performing an improved cleaning operation.Type: ApplicationFiled: December 9, 2008Publication date: July 2, 2009Applicant: Miyakoshi Printing Machinery Co., Ltd.Inventors: Hideo Izawa, Junichi Setoyama, Nobuyuki Kikuchi
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Patent number: 7540604Abstract: It is rendered possible to attach and detach an inkjet line head chassis to and from a controller housing in an inkjet recording apparatus. To this end, the inkjet recording apparatus in which the inkjet line head chassis (2) is detachably attached to a portion of the controller housing (1) comprises: a bracket (4) mounted to the controller housing and movable upward and downward, the bracket supporting the inkjet line head chassis so that the chassis can be attached and detached unidirectionally; a drive plate (18) mounted in the controller housing so as to be rotatable in a plane parallel to a direction in which the bracket is moved vertically; a link mechanism for coupling the drive plate and the bracket to move the bracket vertically when the dive plate is rotated; and a fluid cylinder (19) coupled to the drive plate.Type: GrantFiled: July 26, 2006Date of Patent: June 2, 2009Assignee: Miyakoshi Printing Machinery Co., Ltd.Inventors: Hideo Izawa, Akira Ishikawa
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Publication number: 20090135233Abstract: An ink jet recorder that includes line heads (4) having a plurality of nozzle heads (41), main tanks (13) placed outside of the line heads (4) to store ink; an ink supply passage (13a, 49a, 49c) that connects the main tanks (13) to the associated nozzle heads (41), and distribution tanks (6) placed in each line head (4). The number of supply tube connections (67) provided in the distribution tank (6) is smaller than that of the nozzle heads (41) arranged in the line head (4).Type: ApplicationFiled: January 9, 2009Publication date: May 28, 2009Inventors: Hiroyuki Matsuba, Yoshinobu Ishimoto, Tetsuya Matsuzaki, Hideo Izawa, Takao Namiki
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Publication number: 20090046132Abstract: It is desirable that the entire ink to be furnished to the nozzle head be deaerated efficiently, the entire ink including a portion of ink recovered from the purge section. Accordingly, an ink furnishing unit in an ink jet recorder is provided, which comprises a back pressure tank 15 connected to a nozzle head 2 via an ink supply passage, a main tank 9 connected to the back pressure tank via a main supply passage 16 provided with a main ink pump 18 therein, a recovery tank 7 connected to the main tank via a return passage provided with an ink pump 22 therein, and a purge cap 5 connected to the recovery tank via a recovery passage 8 provided with a purge pump 6 therein, the purge cap being opposed to the nozzle head when purging, wherein a deaerator 17 is disposed in the main supply passage connecting the main tank and the back pressure tank and the back pressure tank is connected to an upstream of the purge pump in the recovery passage via a three way directional control valve 30.Type: ApplicationFiled: June 12, 2006Publication date: February 19, 2009Inventors: Hideo Izawa, Takao Namiki, Akira Ishikawa, Junichi Setoyama
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Patent number: 7490926Abstract: An ink jet recorder that includes line heads (4) having a plurality of nozzle heads (41), main tanks (13) placed outside of the line heads (4) to store ink; an ink supply passage (13a, 49a, 49c) that connects the main tanks (13) to the associated nozzle heads (41), and distribution tanks (6) placed in each line head (4). The number of supply tube connections (67) provided in the distribution tank (6) is smaller than that of the nozzle heads (41) arranged in the line head (4).Type: GrantFiled: April 26, 2005Date of Patent: February 17, 2009Assignees: Panasonic Corporation, Miyakoshi Printing Machinery Co., Ltd.Inventors: Hiroyuki Matsuba, Yoshinobu Ishimoto, Tetsuya Matsuzaki, Hideo Izawa, Takao Namiki
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Patent number: 7390074Abstract: A plurality of long narrow rectangular plate like nozzle heads are inclined together in a direction relative to that in which they are disposed side by side in a line in the line head for permitting ink that also gets into gaps between adjacent nozzle heads to be wiped away.Type: GrantFiled: April 27, 2005Date of Patent: June 24, 2008Assignees: Natsushita Electric Industrial Co., Ltd., Miyakoshi Printing Machinery Co., Ltd.Inventors: Hiroyuki Matsuba, Yoshinobu Ishimoto, Tetsuya Matsuzaki, Hideo Izawa, Takao Namiki
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Publication number: 20080106571Abstract: It is undesirable that a cleaning liquid when cleaning a blade is scattered into the environment. Accordingly, a wiping apparatus for a print head 2 for wiping a head surface 2a of the print head by rubbing the same with a blade 7 is provided which comprises: a wiping box 8 having an open area at its top; a blade support 10 having the blade fastened thereto and disposed in an upper part of the wiping box so as to be rotatable over between a wiping position at which a tip of the blade points upwards and a storage position at which the tip of the blade points downwards; leakproof plates 12a and 12b fastened to the blade support for closing the top open area of the wiping box while the blade is in a state of the storage position; and a cleaning liquid nozzle 16 disposed in the wiping box so that it is directed towards the blade in the storage position.Type: ApplicationFiled: October 29, 2007Publication date: May 8, 2008Applicant: MIYAKOSHI PRINTING MACHINERY CO., LTD.Inventors: Hideo Izawa, Junichi Setoyama, Wataru Itabashi
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Patent number: 7334866Abstract: To make a line head chassis detachable simply and easily in an inkjet recording apparatus, a jig for the line head chassis is provided which comprises: a first support member mounted on a table lateral to the inkjet head; a second support member mounted laterally to and lower than the first support member; a rail member mounted laterally to the first support member and having one end connected thereto; an upright support member having its lower end supported by the second support member adjustably in its height direction and its upper end connected to the other end of the rail member for supporting the rail member horizontally; a base table slidably supported on the rail member to move over a distance outward from a maintenance position; and a cradle means supported on the base table so as to be movable perpendicularly to a direction in which the base table moves for accepting the line head chassis, wherein one end of the rail member and the lower end of the upright support member are made engageable with/disType: GrantFiled: November 1, 2006Date of Patent: February 26, 2008Assignee: Miyakoshi Printing Machinery Co., Ltd.Inventors: Hideo Izawa, Akira Ishikawa
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Publication number: 20070206071Abstract: An ink jet recorder comprises: line heads (4) including a plurality of nozzle heads (41), main tanks (13) placed outside of the line heads (4) to store ink; an ink supply passage (13a, 49a, 49c) that connects the main tanks (13) to the associated nozzle heads (41), and distribution tanks (6) placed in each line head (4). The number of supply tube connections (67) provided in the distribution tank (6) is made smaller than that of the nozzle heads (41) arranged in the line head (4).Type: ApplicationFiled: April 26, 2005Publication date: September 6, 2007Applicants: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD., MIYAKOSHI PRINTING MACHINERY CO., LTD.Inventors: Hiroyuki Matsuba, Yoshinobu Ishimoto, Tetsuya Matsuzaki, Hideo Izawa, Takao Namiki
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Publication number: 20070172285Abstract: To allow continuous paper to be printed a plurality of times with a time difference by ink jet printer equipment and dried each time of printing while preventing condensation from occurring on an ink discharge surface of print head at and after the second time of printing, there is provided a printing apparatus comprising: a plurality of trains of printing units each of which has print heads arranged along a direction in which a continuous sheet of paper travels and which are arranged parallel to one another as shifted mutually in position in a direction of width of the continuous sheet of paper; a dryer section in which a plurality of continuous sheets of paper from the plural printing unit trains can travel as mutually shifted in position in a direction of width of the continuous sheet of paper; a cooling roller unit disposed downstream of the dryer section and having a cooling roller on which the plurality of continuous sheets of paper from the dryer section can be wound as mutually shifted in position inType: ApplicationFiled: January 23, 2007Publication date: July 26, 2007Applicant: Miyakoshi Printing Machinery Co., Ltd.Inventors: Hideo Izawa, Akira Ishikawa
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Publication number: 20070147897Abstract: A developer feeder for wet developing apparatus having a developing roller rotationally engaged with a photoconductor drum and a feed roll in part immersed in a liquid developer and rotationally engaged with the developing roller for supplying the liquid developer onto the developing roller can be made to furnish the peripheral surface of the developing roller with the liquid developer even in thickness by using a plurality of feed rollers which are not mesh rollers but whose peripheral surfaces are smooth and which are arranged circumferentially of the rotational developing roller.Type: ApplicationFiled: December 21, 2006Publication date: June 28, 2007Applicant: Miyakoshi Printing Machinery Co., Ltd.Inventors: Hideo Izawa, Takao Namiki, Junichi Setoyama
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Publication number: 20070109350Abstract: To make a line head chassis detachable simply and easily in an inkjet recording apparatus, a jig for the line head chassis is provided which comprises: a first support member mounted on a table lateral to the inkjet head; a second support member mounted laterally to and lower than the first support member; a rail member mounted laterally to the first support member and having one end connected thereto; an upright support member having its lower end supported by the second support member adjustably in its height direction and its upper end connected to the other end of the rail member for supporting the rail member horizontally; a base table slidably supported on the rail member to move over a distance outward from a maintenance position; and a cradle means supported on the base table so as to be movable perpendicularly to a direction in which the base table moves for accepting the line head chassis, wherein one end of the rail member and the lower end of the upright support member are made engageable with/disType: ApplicationFiled: November 1, 2006Publication date: May 17, 2007Applicant: Miyakoshi Printing Machinery Co., Ltd.Inventors: Hideo Izawa, Akira Ishikawa
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Publication number: 20070109348Abstract: An inkjet recording apparatus having a plurality of inkjet heads arranged along a paper conveyance line is disclosed, which is capable of collecting an ink mist efficiently without making the inkjet heads intricate in makeup.Type: ApplicationFiled: November 1, 2006Publication date: May 17, 2007Applicant: Miyakoshi Printing Machinery Co., Ltd.Inventors: Hideo Izawa, Junichi Setoyama, Yuuichi Yamazaki
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Publication number: 20070035572Abstract: It is rendered possible to attach and detach an inkjet line head chassis to and from a controller housing in an inkjet recording apparatus. To this end, the inkjet recording apparatus in which the inkjet line head chassis (2) is detachably attached to a portion of the controller housing (1) comprises: a bracket (4) mounted to the controller housing and movable upward and downward, the bracket supporting the inkjet line head chassis so that the chassis can be attached and detached unidirectionally; a drive plate (18) mounted in the controller housing so as to be rotatable in a plane parallel to a direction in which the bracket is moved vertically; a link mechanism for coupling the drive plate and the bracket to move the bracket vertically when the dive plate is rotated; and a fluid cylinder (19) coupled to the drive plate.Type: ApplicationFiled: July 26, 2006Publication date: February 15, 2007Applicant: Miyakoshi Printing Machinery Co., Ltd.Inventors: Hideo Izawa, Akira Ishikawa
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Patent number: 7108351Abstract: In order to allow the use of an ink jet printing head of drop-on-demand type and with an ink nozzle assembly having a predetermined length in a direction of travel of a paper web to perform high precision and high speed printing, the ink jet printing head (2) is disposed relative to the traveling paper web (4) at a position such that the nozzle assembly (2a) lies opposed to a linearly traveling surface area of paper web that is leaving from a guide roller (3) immediately after the traveling paper web has had its wrapping contact with the same or a linearly traveling surface area of paper web that is approaching a guide roller (3) immediately before the traveling paper web has its wrapping contact with the same.Type: GrantFiled: November 4, 2003Date of Patent: September 19, 2006Assignee: Miyakoshi Printing Machinery Co.Inventors: Hideo Izawa, Akira Ishikawa, Yuuichi Yamazaki