Patents by Inventor Masafumi Furuyama
Masafumi Furuyama 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: 6756760Abstract: A motor control apparatus and a motor control method that instruct deenergization of a motor a predetermined period of time after an arrival of a subject to be driven by the motor at a speed measuring position. The predetermined period of time corresponds to a current speed of the motor upon arrival of the subject to be driven at the speed measuring position, and the speed measuring position is at a predetermined distance before a target stop position of the subject to be driven.Type: GrantFiled: May 27, 2003Date of Patent: June 29, 2004Assignee: Seiko Epson CorporationInventors: Hirotomo Tanaka, Hidetoshi Kodama, Masafumi Furuyama, Toshiyuki Takahara
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Publication number: 20040061279Abstract: A paper returner is placed in the vicinity of an end portion of a hopper for stacking a plurality of sheets of paper which faces a paper feeding roller, so as to be pivotable between a first position where the paper returner constitutes a part of the paper transporting passage, and a second position where the paper returner is isolated from the paper transporting passage. A separation pad is provided on a first face of the paper returner. The separation pad has a friction coefficient which is higher than a friction coefficient of the first face of the paper returner. The paper returner is placed at the first position so that a top sheet of paper in the hopper is abutted against the paper feeding roller, and is separated from other sheets of paper by the separation pad. The paper returner is placed at the second position so that the first face of the paper returner returns sheets of paper, which are entered in the paper transporting passage-together with the sheet of paper to be fed, to the hopper.Type: ApplicationFiled: September 29, 2003Publication date: April 1, 2004Applicant: SEIKO EPSON CORPORATIONInventors: Kazuo Otsuka, Masafumi Furuyama
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Patent number: 6708969Abstract: A paper returner is placed in the vicinity of an end portion of a hopper for stacking a plurality of sheets of paper which faces a paper feeding roller, so as to be pivotable between a first position where the paper returner constitutes a part of the paper transporting passage, and a second position where the paper returner is isolated from the paper transporting passage. A separation pad is provided on a first face of the paper returner. The separation pad has a friction coefficient which is higher than a friction coefficient of the first face of the paper returner. The paper returner is placed at the first position so that a top sheet of paper in the hopper is abutted against the paper feeding roller, and is separated from other sheets of paper by the separation pad. The paper returner is placed at the second position so that the first face of the paper returner returns sheets of paper, which are entered in the paper transporting passage together with the sheet of paper to be fed, to the hopper.Type: GrantFiled: May 30, 2001Date of Patent: March 23, 2004Assignee: Seiko Epson CorporationInventors: Kazuo Otsuka, Masafumi Furuyama
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Publication number: 20030205982Abstract: A motor control apparatus and a motor control method according to the first embodiment of the invention are configured to instruct deenergization of a motor a predetermined period of time later than arrival of a subject to be driven by the motor at a speed measuring position, the predetermined period of time corresponding to a current speed of the motor upon arrival of the subject to be driven at the speed measuring position, and the speed measuring position being at a predetermined distance before a target stop position of the subject to be driven.Type: ApplicationFiled: May 27, 2003Publication date: November 6, 2003Applicant: Seiko Epson CorporationInventors: Hirotomo Tanaka, Hidetoshi Kodama, Masafumi Furuyama, Toshiyuki Takahara
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Patent number: 6600286Abstract: A motor control apparatus and a motor control method according to a first aspect of the invention are configured to instruct deenergization of a motor a predetermined period of time later than arrival of a subject to be driven by the motor at a speed measuring position. The predetermined period of time corresponds to a current speed of the motor upon arrival of the subject to be driven at the speed measuring position, and the speed measuring position is at a predetermined distance before a target stop position of the subject to be driven.Type: GrantFiled: March 2, 2001Date of Patent: July 29, 2003Assignee: Seiko Epson CorporationInventors: Hirotomo Tanaka, Hidetoshi Kodama, Masafumi Furuyama, Toshiyuki Takahara
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Publication number: 20030132567Abstract: A recording apparatus has a paper feeder wherein single sheets of paper can be set, a paper delivery device for transporting paper fed from the paper feeder to a recorder, and a control unit for controlling operation of the paper feeder and the paper delivery device. The control unit has a skew removal execution mode of only the first sheet of paper where the paper tip is bitten into a paper delivery roller forming a part of the paper delivery device and then the paper delivery roller is reversely rotated for ejecting the paper tip for the first sheet of paper at the start of recording and then forward rotating the paper delivery roller for delivering the sheet of paper whose skew is removed to the recorder and delivering the second and later sheets of paper to a record area without executing the skew removal.Type: ApplicationFiled: December 2, 2002Publication date: July 17, 2003Applicant: SEIKO EPSON CORPORATIONInventors: Masaki Shimomura, Kazuhisa Kawakami, Tsuyosi Yamanaka, Masafumi Furuyama, Toru Fukushima
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Publication number: 20030057635Abstract: A paper feed unit includes a hopper on which sheets are stacked and which is turned around a rotation shaft. The hopper is turned to move apart from or move to a paper feed roller. The paper feed unit has three modes: a large release mode in which the hopper is turned to be most apart from the paper feed roller, a non-release mode in which the printing sheet is abutted against the paper feed roller, and a small release mode in which the printing sheet is slightly separated from the paper feed roller, and is at a medium level between the above two modes. When a paper feeding job is still present, a state that the uppermost printing sheet is slightly separated from the paper feed roller is retained by the small release mode, whereby a swing range of the hopper is minimized.Type: ApplicationFiled: August 27, 2002Publication date: March 27, 2003Applicant: SEIKO EPSON CORPORATIONInventors: Toru Fukushima, Kazuhisa Kawakami, Masafumi Furuyama, Yoji Sasai, Norihiro Yamashita, Yoichi Kobayashi, Hirotomo Tanaka
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Patent number: 6491295Abstract: A paper feeding roller is provided in the vicinity of a first widthwise end of a transporting path extending to a recording apparatus. A hopper, for stacking a plurality of sheets of paper, includes an aligning face, on which leading ends of the stacked sheets are abutted to be aligned with each other. The aligning face is narrowed from a first side end thereof to a second side end thereof. Here, the first side end is in the vicinity of the first widthwise end of the transporting path, and the second side end is in the vicinity of a second widthwise end of the transporting path. The hopper includes a guide face provided on the first side end of the aligning face so as to extend parallel with the transporting path.Type: GrantFiled: May 31, 2001Date of Patent: December 10, 2002Assignee: Seiko Epson CorporationInventors: Kazuo Otsuka, Masafumi Furuyama
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Publication number: 20020014735Abstract: A paper feeding roller is provided in the vicinity of a first widthwise end of a transporting path extending to a recording apparatus. A hopper, for stacking a plurality of sheets of paper, includes an aligning face, on which leading ends of the stacked sheets are abutted to be aligned with each other. The aligning face is narrowed from a first side end thereof to a second side end thereof. Here, the first side end is in the vicinity of the first widthwise end of the transporting path, and the second side end is in the vicinity of a second widthwise end of the transporting path. The hopper includes a guide face provided on the first side end of the aligning face so as to extend parallel with the transporting path.Type: ApplicationFiled: May 31, 2001Publication date: February 7, 2002Applicant: SEIKO EPSON CORPORATIONInventors: Kazuo Otsuka, Masafumi Furuyama
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Publication number: 20020011702Abstract: A paper returner is placed in the vicinity of an end portion of a hopper for stacking a plurality of sheets of paper which faces a paper feeding roller, so as to be pivotable between a first position where the paper returner constitutes a part of the paper transporting passage, and a second position where the paper returner is isolated from the paper transporting passage. A separation pad is provided on a first face of the paper returner. The separation pad has a friction coefficient which is higher than a friction coefficient of the first face of the paper returner. The paper returner is placed at the first position so that a top sheet of paper in the hopper is abutted against the paper feeding roller, and is separated from other sheets of paper by the separation pad. The paper returner is placed at the second position so that the first face of the paper returner returns sheets of paper, which are entered in the paper transporting passage together with the sheet of paper to be fed, to the hopper.Type: ApplicationFiled: May 30, 2001Publication date: January 31, 2002Applicant: SEIKO EPSON CORPORATIONInventors: Kazuo Otsuka, Masafumi Furuyama
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Publication number: 20010035724Abstract: A motor control apparatus and a motor control method according to the first embodiment of the invention are configured to instruct deenergization of a motor a predetermined period of time later than arrival of a subject to be driven by the motor at a speed measuring position, the predetermined period of time corresponding to a current speed of the motor upon arrival of the subject to be driven at the speed measuring position, and the speed measuring position being at a predetermined distance before a target stop position of the subject to be driven.Type: ApplicationFiled: March 2, 2001Publication date: November 1, 2001Applicant: SEIKO EPSON CORPORATIONInventors: Hirotomo Tanaka, Hidetoshi Kodama, Masafumi Furuyama, Toshiyuki Takahara