Patents by Inventor Kenjiro Ishihara
Kenjiro Ishihara 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: 20240109285Abstract: A printing apparatus includes a head that faces a medium supported by a medium support unit and ejects a liquid, an interference object sensor including a detector that detects an interference object with the head, and a cover that can switch the detector to a shielded state and to an exposed state.Type: ApplicationFiled: September 29, 2023Publication date: April 4, 2024Inventors: Kenjiro ISHIHARA, Kazuhisa TAKEDA, Keita HANAWA, Ryo NISHIKAWA
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Patent number: 11192391Abstract: A feeding tray includes a first member supported, via a housing member, by a main body of a recording device configured to perform recording onto a medium, and a second member that includes a second support surface configured to support the medium and is coupled to the first member to be movable relatively to the first member, with a transport direction of the medium being a movement direction. The second member includes a second frame body forming an outer peripheral portion of the second member, and a plurality of second ribs spanning across the second frame body to form the second support surface.Type: GrantFiled: March 26, 2020Date of Patent: December 7, 2021Assignee: Seiko Epson CorporationInventors: Eiji Taketsugu, Tsuyoshi Himeno, Atsuhiko Takeuchi, Kenjiro Ishihara
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Publication number: 20200307263Abstract: A feeding tray includes a first member supported, via a housing member, by a main body of a recording device configured to perform recording onto a medium, and a second member that includes a second support surface configured to support the medium and is coupled to the first member to be movable relatively to the first member, with a transport direction of the medium being a movement direction. The second member includes a second frame body forming an outer peripheral portion of the second member, and a plurality of second ribs spanning across the second frame body to form the second support surface.Type: ApplicationFiled: March 26, 2020Publication date: October 1, 2020Inventors: Eiji TAKETSUGU, Tsuyoshi HIMENO, Atsuhiko TAKEUCHI, Kenjiro ISHIHARA
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Patent number: 7677562Abstract: A paper guide up unit pivotally supporting a transport driven roller making contact with a transport driving roller is provided so as to be able to be displaced by the rotation of cams. The angle ? made by a straight line passing the rotation axis line position of the transport driving roller and the rotation axis line position of the transport driven roller when viewed from the paper transport pathway side and a straight perpendicular to the paper transport direction is changed by the displacement of the paper guide up unit. Control means for controlling the displacement operation of the paper guide up unit reduces the angle ? before the paper back end is passed through the nip point of the transport driving roller and the transport driven roller.Type: GrantFiled: December 6, 2007Date of Patent: March 16, 2010Assignee: Seiko Epson CorporationInventors: Kenjiro Ishihara, Kazuo Saito, Kohei Ueno
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Publication number: 20080143035Abstract: A paper guide up unit pivotally supporting a transport driven roller making contact with a transport driving roller is provided so as to be able to be displaced by the rotation of cams. The angle ? made by a straight line passing the rotation axis line position of the transport driving roller and the rotation axis line position of the transport driven roller when viewed from the paper transport pathway side and a straight perpendicular to the paper transport direction is changed by the displacement of the paper guide up unit. Control means for controlling the displacement operation of the paper guide up unit reduces the angle ? before the paper back end is passed through the nip point of the transport driving roller and the transport driven roller.Type: ApplicationFiled: December 6, 2007Publication date: June 19, 2008Applicant: SEIKO EPSON CORPORATIONInventors: Kenjiro ISHIHARA, Kazuo SAITO, Kohei UENO
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Patent number: 7204577Abstract: A liquid ejecting head is operable to move in a first direction. A platen is opposed to the liquid ejecting head to support an object to which a liquid droplet is ejected from the liquid ejecting head and to define a gap between the liquid ejecting head and the object. The platen is formed with a groove hole to which a liquid droplet deviated from an edge of the object is disposed, and through holes formed in a bottom portion of the groove hole and arranged in the first direction. A tray member is arranged below the platen to receive liquid dropped through the through holes. A first liquid absorber is provided in the groove hole. A second liquid absorber is provided in the tray member. At least one liquid leading member extends through at least one of the through holes to lead liquid absorbed by the first liquid absorber to the second liquid absorber.Type: GrantFiled: June 1, 2004Date of Patent: April 17, 2007Assignee: Seiko Epson CorporaionInventors: Masatomo Kanamitsu, Naruhiko Katagiri, Hajime Wada, Keisuke Haba, Midori Araya, Masahiro Isono, Hikaru Kobayashi, Kazuhisa Takeda, Kenjiro Ishihara, Seiji Tezuka, Satoshi Kaneta, Takashi Sato
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Patent number: 7101096Abstract: A transferring tray for a printing apparatus for printing on one major surface of a recording media having disc shape, wherein the printing apparatus includes, a carriage having a printing head, reciprocating in a main scanning direction, a transferring unit transferring the recording media in a sub scanning direction, a detecting unit detecting the recording media being transferred by the transferring unit, and a recording unit printing on the one major surface of the recording media, the transferring tray including: a tray body having a rectangular plate shape made of a material which is not detected by the detecting unit; a detected portion formed on either one of two major surfaces of the tray body, being detectable by the detecting unit; and a mounting portion having a mounting recess such that the one major surface of the recording media comes up to substantially same level as one of the major surfaces of the tray body when the recording media is mounted on the transferring tray.Type: GrantFiled: September 24, 2001Date of Patent: September 5, 2006Assignee: Seiko Epson CorporationInventors: Yoji Sasai, Masaki Shimomura, Masahiro Isono, Mamoru Ukita, Hiroshi Asawa, Kenjiro Ishihara, Koji Hashiuchi, Kazuo Otsuka, Hiroyuki Tajima
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Publication number: 20050062794Abstract: A liquid ejecting head is operable to move in a first direction. A platen is opposed to the liquid ejecting head to support an object to which a liquid droplet is ejected from the liquid ejecting head and to define a gap between the liquid ejecting head and the object. The platen is formed with a groove hole to which a liquid droplet deviated from an edge of the object is disposed, and through holes formed in a bottom portion of the groove hole and arranged in the first direction. A tray member is arranged below the platen to receive liquid dropped through the through holes. A first liquid absorber is provided in the groove hole. A second liquid absorber is provided in the tray member. At least one liquid leading member extends through at least one of the through holes to lead liquid absorbed by the first liquid absorber to the second liquid absorber.Type: ApplicationFiled: June 1, 2004Publication date: March 24, 2005Inventors: Masatomo Kanamitsu, Naruhiko Katagiri, Hajime Wada, Keisuke Haba, Midori Araya, Masahiro Isono, Hikaru Kobayashi, Kazuhisa Takeda, Kenjiro Ishihara, Seiji Tezuka, Satoshi Kaneta, Takashi Sato
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Patent number: 6739683Abstract: An ink jet recording apparatus includes a paper gap switching portion for switching paper gaps by moving a recording head, a pressing-force adjustment portion for applying a pressure to a following roller and releasing the pressure from the following roller so as to adjust a pressing force applied to a recording medium, and an operation member for controlling a driving operation of the paper gap switching portion and a driving operation for the pressing-force adjustment portion.Type: GrantFiled: October 1, 2001Date of Patent: May 25, 2004Assignee: Seiko Epson CorporationInventors: Masaki Shimomura, Hiroshi Asawa, Masahiro Isono, Yoichi Kobayashi, Koji Hashiuchi, Hiroyuki Tajima, Kenjiro Ishihara
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Publication number: 20020067940Abstract: A transferring tray for a printing apparatus for printing on one major surface of a recording media having disc shape, wherein the printing apparatus includes, a carriage having a printing head, reciprocating in a main scanning direction, a transferring unit transferring the recording media in a sub scanning direction, a detecting unit detecting the recording media being transferred by the transferring unit, and a recording unit printing on the one major surface of the recording media, the transferring tray including: a tray body having a rectangular plate shape made of a material which is not detected by the detecting unit; a detected portion formed on either one of two major surfaces of the tray body, being detectable by the detecting unit; and a mounting portion having a mounting recess such that the one major surface of the recording media comes up to substantially same level as one of the major surfaces of the tray body when the recording media is mounted on the transferring tray.Type: ApplicationFiled: September 24, 2001Publication date: June 6, 2002Inventors: Yoji Sasai, Masaki Shimomura, Masahiro Isono, Mamoru Ukita, Hiroshi Asawa, Kenjiro Ishihara, Koji Hashiuchi, Kazuo Otsuka, Hiroyuki Tajima
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Publication number: 20020057302Abstract: An ink jet recording apparatus includes a paper gap switching portion for switching paper gaps by moving a recording head, a pressing-force adjustment portion for applying a pressure to a following roller or release the pressure from the following roller so as to adjust a pressing force applied to a recording medium, and an operation member for operating in series two series of driving operations including a driving operation for the paper gap switching portion and a driving operation for the pressing-force adjustment portion. Thus, the switching of the paper gaps and the adjustment of the pressing force can be performed only by operating the operation member, and therefore they can be smoothly performed without fail, improving user's operability. Also, the adjustments of the recording head and the following roller can be performed simply and uniquely.Type: ApplicationFiled: October 1, 2001Publication date: May 16, 2002Inventors: Masaki Shimomura, Hiroshi Asawa, Masahiro Isono, Yoichi Kobayashi, Koji Hashiuchi, Hiroyuki Tajima, Kenjiro Ishihara
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Patent number: 5934664Abstract: A paper feeding apparatus and a printer wherein an idle roller is brought into contact with a separation pad by a roller spring for generating urging force smaller than that of a separation pad for separating a paper sheet to be fed by a paper feeding roller having a D-shape side cross section from a next paper sheet; a restraining pin for restraining movement of the separation pad toward the paper feeding roller when the paper sheet is not held between the separation pad and the paper feeding roller is provided; a pair of conveying rollers are temporarily and inversely rotated after the leading end of the paper sheet has passed through a nipping portion between the pair of the conveying rollers and in a state where the paper sheet is not held between the separation pad and a circular-arc portion of the paper feeding roller so as to arrange the leading end of the paper sheet along the nipping portion so that diagonal conveyance of the paper sheet is smoothly prevented and the load acting on the fed paper sheeType: GrantFiled: June 25, 1997Date of Patent: August 10, 1999Assignee: Seiko Epson CorporationInventors: Susumu Murayama, Atsushi Nishizawa, Masaki Shimomura, Kenjiro Ishihara
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Patent number: 5396981Abstract: A flexible screw of the invention comprises a flexible rod and a cord helically set on the rod, and can be installed along straight and curved paths of transport. It ensures smooth transport of containers and provides container transport apparatus with a simplified construction at a reduced cost. Moreover, the abrasion of pipe during transport of powder and granular material can be reduced. The container transport apparatus of the present invention is equipped with the screw mentioned above and a guide, or two screws, the members of each pair being positioned in parallel at a given distance, and transfers containers held by the screw and the guide, or the two screws by rotating the screw(s). The container transport apparatus of the present invention enables smooth transport of containers even through a curved path, reduces maintenance cost of the screw(s) during operation, and inhibits abrasion of the rail to a considerable degree.Type: GrantFiled: December 30, 1993Date of Patent: March 14, 1995Assignee: Mitsubishi Cable Industries, Ltd.Inventors: Masaaki Ohtsuji, Naoki Ohmori, Kenjiro Ishihara, Shigeo Mori, Isao Yokoyama, Kazushi Miyake, Keiichi Maeda
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Patent number: 5295573Abstract: The flexible screw of the invention comprises a flexible rod and a cord helically set on the rod, and can be installed along straight and curved paths of transport. It ensures smooth transport of containers and provides container transport apparatus of simplified construction at reduced cost. Moreover, abrasion of pipe during transport of powder and granular material can be reduced. The container transport apparatus of the present invention is equipped with the screw mentioned above and a guide, or two screws, the members of each pair being positioned in parallel at a given distance, and transfers containers held by the screw and the guide, or the two screws by rotating the screw(s). The container transport apparatus of the present invention enables smooth transport of containers even through a curved path, reduces maintenance cost of the screw(s) during operation, and inhibits abrasion of the rail to a considerable degree.Type: GrantFiled: August 26, 1991Date of Patent: March 22, 1994Assignee: Mitsubishi Cable Industries, Ltd.Inventors: Masaaki Ohtsuji, Naoki Ohmori, Kenjiro Ishihara, Shigeo Mori, Isao Yokoyama, Kazushi Miyake, Keiichi Maeda