Patents by Inventor Seiji Mochizuki
Seiji Mochizuki 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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Patent number: 5296876Abstract: In a recording apparatus with an ink jet print head which forms dots on a recording sheet by ink jets shot from an array of nozzles, a microcomputer determines whether a printing defect is a light printing defect caused by paper particles and dust adhering to the nozzles or a heavy printing defect caused by the entry of air bubbles into the ink flow paths. The determination is made on the basis of intervals of operating a print recovery button mounted on a chassis of the recording apparatus. For the light printing defect, the computer puts a cap member to the front face of the nozzles of the print head and applies a negative pressure to the nozzles, thereby to reduce the amount of ink emitted from the nozzles. For the heavy printing defect, the computer increases the amount of ink.Type: GrantFiled: August 18, 1992Date of Patent: March 22, 1994Assignee: Seiko Epson CorporationInventors: Shuichi Yamaguchi, Seiji Mochizuki, Hideaki Suzuki, Satoshi Shinada, Mayumi Aida
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Patent number: 5266975Abstract: An ink jet type recording device has a recording head which is moved over a recording sheet to jet ink droplets to form dots on it, an ink tank for supplying ink to the recording head, a cap member arranged outside the printing region in such a manner that it is moved to and from the recording head, a suction pump having an ink sucking inlet connected to the cap member and an ink discharging outlet connected to a waste ink tank. Also, a switch is provided for starting the suction pump; a memory circuit is provided for storing data representing the quantity of waste ink sucked out by the suction pump; and a control circuit is provided for nullifying an ink purging instruction when the sum of the quantities of waste ink exceeds a predetermined value. When it is detected through the memory circuit that the sum of the quantities of waste ink thus sucked out is beyond the capacity of the waste ink tank, the ink purging operation is suspended irrespective of a forcible ink purging instruction from the switch.Type: GrantFiled: February 9, 1993Date of Patent: November 30, 1993Assignee: Seiko Epson CorporationInventors: Seiji Mochizuki, Kazuhisa Kawakami, Tsuyoshi Tomii, Toshio Kumagai
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Patent number: 5260724Abstract: According to the present invention, there is disclosed a capping device for an ink jet printer which is constructed such that a cap supporting member 14, adapted to move from the non-capping position to the capping position by the thrust action of a carriage 3, is arranged on the home position side of the ink jet printer so that the outer end part of the cap supporting member 14 is displaced toward the nozzle surface of a printing head 4 with the aid of a guide surface 15b having an inclined surface 15a, until a cap 5 on the cap supporting member 14 is brought into close contact with the nozzle surface of the printing head 4 with an adequate intensity of thrust force by means of a turnable lever 8 operatively connected to the inner end of the cap supporting member 14, while resilient force of a cap spring 11 is exerted on the base end part of the turnable lever 8 so as to normally bias the cap supporting member 14 in the direction toward the printing head 4.Type: GrantFiled: December 31, 1991Date of Patent: November 9, 1993Assignee: Seiko Epson CorporationInventors: Tsuyoshi Tomii, Seiji Mochizuki, Yukihiro Hanaoka, Toshio Kumagai, Hitoshi Hayakawa
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Patent number: 5255019Abstract: In an ink near-end detecting device, a pair of electrodes are arranged in the porous material in the ink tank and in the ink pool provided below the ink tank, respectively, so that the time instant the ink in the porous material has been nearly used up is detected from the variation of the electrical resistance between the electrodes with the consumption of the ink in the porous material.Type: GrantFiled: August 7, 1991Date of Patent: October 19, 1993Assignee: Seiko Epson CorporationInventors: Seiji Mochizuki, Takahiro Naka, Kazuhiko Hara, Akira Takagi, Yukihiro Hanaoka
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Patent number: 5248999Abstract: An ink jet type recording device has a recording head which is moved over a recording sheet to jet ink droplets to form dots on it, an ink tank for supplying ink to the recording head, a cap member arranged outside the printing region in such a manner that it is moved to and from the recording head, a suction pump having an ink sucking inlet connected to the cap member and an ink discharging outlet connected to a waste ink tank. Also, a switch is provided for starting the suction pump; a memory circuit is provided for storing data representing the quantity of waste ink sucked out by the suction pump; and a control circuit is provided for nullifying an ink purging instruction when the sum of the quantities of waste ink exceeds a predetermined value. When it is detected through the memory circuit that the sum of the quantities of waste ink thus sucked out is beyond the capacity of the waste ink tank, the ink purging operation is suspended irrespective of a forcible ink purging instruction from the switch.Type: GrantFiled: October 11, 1991Date of Patent: September 28, 1993Assignee: Seiko Epson CorporationInventors: Seiji Mochizuki, Kazuhisa Kawakami, Tsuyoshi Tomii, Toshio Kumagai
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Patent number: 5245357Abstract: A page printer having a housing body and including a gate roller, a developing unit, a photosensitive drum unit, a fixing unit and a sheet discharging roller arranged on the front side of the housing body in the order stated from above so that the printing sheet conveying path is substantially vertical to reduce floor area required for installation. An optical writing unit is provided on the rear side of the housing body. Guide members are provided on the housing body to readily mount or demount the photo-sensitive drum unit. Further, a shield board is disposed between the photo-sensitive drum unit and the fixing unit so that the printing sheet will not be stained by toner scattering from the photo-sensitive drum.Type: GrantFiled: May 20, 1992Date of Patent: September 14, 1993Assignee: Seiko Epson CorporationInventors: Mitsuaki Maruyama, Hiroshi Hiki, Shigeru Sawada, Seiji Mochizuki, Yasuhiro Gyoutoku
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Patent number: 5211950Abstract: A solid calcitonin pharmaceutical composition comprised of a therapeutically effective amount of calcitonins and ethylene diamine tetraacetates.Type: GrantFiled: May 23, 1990Date of Patent: May 18, 1993Assignee: Teijin LimitedInventors: Hideki Kobayashi, Seiji Mochizuki, Yuji Makino, Yoshiki Suzuki
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Patent number: 5157420Abstract: An inkjet recording head having a head substrate (1); at least a group of pressure chambers (2) arranged so as to be recessed over an entire surface of the head substrate; ink ejecting nozzles (7), each of which is opened so as to face a surface opposite to that of the substrate by extending through a flow path (5) that passes through the head substrate thicknesswise from one end of each of the pressure chambers; and an annular ink preparation chamber (4) communicating with the other end of each of the pressure chambers. The ink preparation chamber that communicates with each of the pressure chambers is arranged so as to be annular, thereby improving the air bubble discharging characteristics and preventing disruption of ink ejection. In addition, the advantage that the ink can be supplied to each of the ink ejecting nozzles uniformly ensures excellent printing quality. Furthermore, the ink chamber is recessed into an opposite surface of the head substrate opposite the pressure chambers.Type: GrantFiled: August 15, 1990Date of Patent: October 20, 1992Inventors: Takahiro Naka, Kazuhiko Hara, Noriaki Okazawa, Seiji Mochizuki
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Patent number: 5153614Abstract: In a recording apparatus with an ink jet print head which forms dots on a recording sheet by ink jets shot from an array of nozzles, a microcomputer determines whether a printing defect is a light printing defect caused by paper particles and dust adhering to the nozzles or a heavy printing defect caused by the entry of air bubbles into the ink flow paths. The determination is made on the basis of intervals of operating a print recovery button mounted on a chassis of the recording apparatus. For the light printing defect, the computer puts a cap member to the front face of the nozzles of the print head and applies a negative pressure to the nozzles, thereby to reduce the amount of ink emitted from the nozzles. For the heavy printing defect, the computer increases the amount of ink.Type: GrantFiled: November 5, 1990Date of Patent: October 6, 1992Assignee: Seiko Epson CorporationInventors: Shuichi Yamaguchi, Seiji Mochizuki, Hideaki Suzuki, Satoshi Shinada, Mayumi Aida
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Patent number: 5070346Abstract: In an ink near-end detecting device, a pair of electrodes are arranged in the porous material in the ink tank and in the ink pool provided below the ink tank, respectively, so that the time instant the ink in the porous material has been nearly used up is detected from the variation of the electrical resistance between the electrodes with the consumption of the ink in the porous material.Type: GrantFiled: January 18, 1991Date of Patent: December 3, 1991Assignee: Seiko Epson CorporationInventors: Seiji Mochizuki, Takahiro Naka, Kazuhiko Hara, Akira Takagi, Yukihiro Hanaoka
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Patent number: 5001516Abstract: A page printer is provided which includes a housing having a lateral side plate that is formed from an electrically conductive material, with a gate roller, a developing unit, a photosensitive drum unit, a fixing unit and a paper discharging roller mounted in the housing. The electronic circuitry for controlling the page printer is disposed in a side portion of the housing with the lateral side plate disposed between the electronic circuitry and the units.Type: GrantFiled: September 21, 1989Date of Patent: March 19, 1991Assignee: Seiko Epson CorporationInventors: Mitsuaki Maruyama, Hiroshi Niki, Shigeru Sawada, Seiji Mochizuki, Yasuhiro Gyoutoku
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Patent number: 4945364Abstract: A page printer having a housing body and including a gate roller, a developing unit, a photo-sensitive drum unit, a fixing unit and a sheet discharging roller arranged on the front side of the housing body in the order stated from above so that the printing sheet conveying path is substantially vertical to reduce floor area required for installation. An optical writing unit is provided on the rear side of the housing body. Guide members are provided on the housing body to readily mount or demount the photo-sensitive drum unit. Further, a shield board is disposed between the photo-sensitive drum unit and the fixing unit so that the printing sheet will not be stained by toner scattering from the photo-sensitive drum.Type: GrantFiled: September 6, 1989Date of Patent: July 31, 1990Assignee: Seiko Epson CorporationInventors: Mitsuaki Maruyama, Hiroshi Niki, Shigeru Sawada, Seiji Mochizuki, Yasuhiro Gyoutoku
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Patent number: 4941002Abstract: In a page printer, a gate roller, a developing unit, a photo-sensitive drum unit, a fixing unit and a sheet discharging roller are mounted on the open front side of a housing body in the order stated from above, thus forming a substantially vertical sheet conveying path. As a result, the installation floor area is reduced. In the rear portion of the housing, and a transferring unit and a sheet guide member are provided on the cover of the housing body. Thus, the light beam generating unit and the photo-sensitive drum are maintained unchanged in position at all times. A cut sheet feeder is mounted over the housing body so that it is movable back and forth, thus facilitating the inspection and maintenance of the printer.Type: GrantFiled: August 24, 1989Date of Patent: July 10, 1990Assignee: Seiko Epson CorporationInventors: Mitsuaki Maruyama, Hiroshi Niki, Shigeru Sawada, Seiji Mochizuki, Yasuhiro Gyoutoku
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Patent number: 4935945Abstract: In a system for exposing X-ray film to X-rays, to adequate density, X-rays emitted from a X-ray tube and passing through an object are incident on a X-ray film through a X-ray pickup device. A X-ray pickup device having a plurality of pickup fields comprises an intensifying screen for converting X-rays into light rays. In each of the pickup fields, a bundle of optical fibers are extended and end faces of the fibers are so arranged as to occupy each of the pickup field with segment pickup field of the optical fibers. The optical fiber bundles are optically coupled to photodetectors, respectively so that light rays are converted into electrical signals.Type: GrantFiled: April 13, 1989Date of Patent: June 19, 1990Assignee: Kabushiki Kaisha ToshibaInventors: Seiji Mochizuki, Hisatoshi Aoki, Seiichi Nishizuka
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Patent number: 4875633Abstract: Here is provided a paper splicing device having a tuning mechanism, and this tuning mechanism is provided with a tuning control section for tuning a rotary peripheral speed of a second rotor rotating in contact with the peripheral surface of the succeeding paper roll to a rotary peripheral speed of a first rotor rotating in contact with the peripheral surface of the preceding paper roll. To tune the above rotary peripheral speed of the paper rolls, the paper splicing device of the present invention comprises a cut section, a reference position detecting section, a rotational quantity detecting section, and a cut command section.Type: GrantFiled: March 29, 1988Date of Patent: October 24, 1989Assignee: Toppan Moore Company, Ltd.Inventors: Seiji Mochizuki, Fumiyasu Kato
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Patent number: 4804762Abstract: Disclosed herein is a compound of the formula: ##STR1## wherein X is halogen, lower alkoxy or lower alkylthio,Y is hydrogen or chloro,R.sub.1 is hydrogen, lower alkyl, cyanomethyl, phenyl or benzyl,R.sub.2 is hydrogen, C.sub.1 .about.C.sub.7 - alkyl, C.sub.3 .about.C.sub.6 - cycloalkyl, lower alkoxy, phenyl, phenoxyphenyl, furyl, thienyl or benzyl andn=1 or 2with a proviso that X and Y are not chloro at the same time, a fungicidal or bactericidal composition containing said compound as an effective component, a method for preventing diseases of agricultural or horticultural plant and a method for manufacturing said compound.Type: GrantFiled: May 4, 1987Date of Patent: February 14, 1989Assignee: Nippon Kayaku Kabushiki KaishaInventors: Hiroshi Yoshida, Shizuo Shimano, Seiji Mochizuki, Kengo Koike, Taizo Nakagawa, Kenji Konishi
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Patent number: 4690934Abstract: A compound of the formula: ##STR1## wherein X is halogen, lower alkoxy, lower alkylthio, nitro or methyl,Y is hydrogen or chloro,R is hydrogen, lower alkyl or allyl,Z is hydrogen, lower alkyl halogen, nitro, methoxy, methylthio, methylsulfonyl, --CF.sub.3, phenyl, phenoxy or lower alkoxycarbonyl andn is integer of 1-3, their use as fungicide or bactericides.Type: GrantFiled: September 9, 1986Date of Patent: September 1, 1987Assignee: Nippon Kayaku Kabushiki KaishaInventors: Hiroshi Yoshida, Kenji Konishi, Kengo Koike, Taizo Nakagawa, Shizuo Shimano, Seiji Mochizuki
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Patent number: 4284628Abstract: A compound represented by the formula: ##STR1## wherein R.sub.1 is hydrogen, lower alkylcarbonyl, lower alkoxycarbonyl, phenoxycarbonyl, lower alkylsulfonyl or lower alkylcarbamoyl, R.sub.2 is phenyl; phenyl substituted by one or more members selected from the group consisting of lower alkyl, lower alkoxy, lower alkylthio, lower alkoxycarbonyl, halogen, formyl, cyano, thiocyano, nitro, lower alkylsulfinyl, lower alkylsulfonyl, lower alkylcarbonyl, acetylamino or phenyl; or naphthyl, with the proviso that when R.sub.1 is hydrogen or lower alkylcarbonyl, R.sub.2 is the said substituted phenyl or naphthyl, and use thereof as a fungicide.Type: GrantFiled: August 13, 1979Date of Patent: August 18, 1981Assignee: Nippon Kayaku Kabushiki KaishaInventors: Taizo Nakagawa, Seiji Mochizuki, Kaoru Ohmori, Kengo Koike, Mineo Maruyama, Eiichi Tanaka
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Patent number: 4200632Abstract: A compound represented by the formula: ##STR1## wherein R.sub.1 is hydrogen or alkyl-carbonyl wherein the alkyl has 1 to 6 carbon atoms and R.sub.2 is alkyl having 1 to 18 carbon atoms or phenyl and use thereof as fungicide.Type: GrantFiled: August 30, 1978Date of Patent: April 29, 1980Assignee: Nippon Kayaku Kabushiki KaishaInventors: Taizo Nakagawa, Kaoru Ohmori, Seiji Mochizuki, Eiichi Tanaka, Osamu Yamada
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Patent number: D341157Type: GrantFiled: June 10, 1991Date of Patent: November 9, 1993Assignee: Seiko Epson CorporationInventors: Ko H. Kitahara, Seiji Mochizuki, Kazuhisa Kawakami