Patents by Inventor Noboru Onodera
Noboru Onodera 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: 8331607Abstract: A speaker includes an elongated diaphragm and a coupling member including forward and rearward segments, wherein at least two protrusions are provided at the rear side of the diaphragm along the major axis direction, the forward segment is engagingly disposed between the opposing end faces of two adjacent protrusions and also between the two portions of a rib of the diaphragm opposing each other in the minor axis direction, and wherein the outer circumferential surface of the voice coil bobbin is connected to the inner circumferential surface of the rearward segment, whereby the voice coil bobbin having a diameter larger than the dimension of the diaphragm measured along the minor axis direction can be successfully attached to the diaphragm. In the speaker described above, the diameter of the voice coil bobbin can be increased without decreasing the width of a surround thus enabling the withstanding of higher power input.Type: GrantFiled: July 13, 2010Date of Patent: December 11, 2012Assignee: Minebea Co., Ltd.Inventor: Noboru Onodera
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Publication number: 20110019865Abstract: A speaker includes an elongated diaphragm and a coupling member including forward and rearward segments, wherein at least two protrusions are provided at the rear side of the diaphragm along the major axis direction, the forward segment is engagingly disposed between the opposing end faces of two adjacent protrusions and also between the two portions of a rib of the diaphragm opposing each other in the minor axis direction, and wherein the outer circumferential surface of the voice coil bobbin is connected to the inner circumferential surface of the rearward segment, whereby the voice coil bobbin having a diameter larger than the dimension of the diaphragm measured along the minor axis direction can be successfully attached to the diaphragm. In the speaker described above, the diameter of the voice coil bobbin can be increased without decreasing the width of a surround thus enabling the withstanding of higher power input.Type: ApplicationFiled: July 13, 2010Publication date: January 27, 2011Applicant: MINEBEA CO., LTD.Inventor: Noboru ONODERA
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Patent number: 7769310Abstract: An image forming apparatus in which a visible image is transferred to a transfer material includes a pre-transfer exposing unit that makes only a portion of a latent image carrier that corresponds to a leading edge of the transfer material expose, and a transfer-bias applying unit that applies a bias for transferring the visible image. The transfer-bias applying unit starts applying the bias to the transfer material, at least step-by-step, when a predetermined time is passed from a point of time at which the leading edge of the transfer material comes into a contact with the latent image carrier by controlling the pre-transfer exposing unit and a bias applying timing of the transfer-bias applying unit.Type: GrantFiled: January 31, 2007Date of Patent: August 3, 2010Assignee: Ricoh Company, LimitedInventors: Hirokazu Ishii, Satoshi Takano, Hiroshi Saitoh, Ryoh Tanoue, Itaru Matsuda, Yuji Suzuki, Eiji Shimojo, Noboru Onodera, Hidenori Nihei
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Publication number: 20070127941Abstract: An image forming apparatus in which a visible image is transferred to a transfer material includes a pre-transfer exposing unit that makes only a portion of a latent image carrier that corresponds to a leading edge of the transfer material expose, and a transfer-bias applying unit that applies a bias for transferring the visible image. The transfer-bias applying unit starts applying the bias to the transfer material, at least step-by-step, when a predetermined time is passed from a point of time at which the leading edge of the transfer material comes into a contact with the latent image carrier by controlling the pre-transfer exposing unit and a bias applying timing of the transfer-bias applying unit.Type: ApplicationFiled: January 31, 2007Publication date: June 7, 2007Inventors: Hirokazu Ishii, Satoshi Takano, Hiroshi Saitoh, Ryoh Tanoue, Itaru Matsuda, Yuji Suzuki, Eiji Shimojo, Noboru Onodera, Hidenori Nihei
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Patent number: 7184678Abstract: An image forming apparatus in which a visible image is transferred to a transfer material includes a pre-transfer exposing unit that makes only a portion of a latent image carrier that corresponds to a leading edge of the transfer material expose, and a transfer-bias applying unit that applies a bias for transferring the visible image. The transfer-bias applying unit starts applying the bias to the transfer material, at least step-by-step, when a predetermined time is passed from a point of time at which the leading edge of the transfer material comes into a contact with the latent image carrier by controlling the pre-transfer exposing unit and a bias applying timing of the transfer-bias applying unit.Type: GrantFiled: December 17, 2004Date of Patent: February 27, 2007Assignee: Ricoh Company, LimitedInventors: Hirokazu Ishii, Satoshi Takano, Hiroshi Saitoh, Ryoh Tanoue, Itaru Matsuda, Yuji Suzuki, Eiji Shimojo, Noboru Onodera, Hidenori Nihei
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Patent number: 7163411Abstract: There is here disclosed a terminal protective device for a compressor to which a terminal cover can be attached and held stably. The terminal protective device comprises a terminal fence fixed to the outer surface of a hermetically sealed vessel so as to surround a terminal attached to the hermetically sealed vessel, and a terminal cover attached to the terminal fence so as to cover the terminal. The terminal cover has the shape of a substantially rectangular box and is held on its upper or lower surface as well as right and left surfaces by the terminal fence.Type: GrantFiled: February 19, 2004Date of Patent: January 16, 2007Assignee: Sanyo Electric Co., Ltd.Inventors: Uehito Kawashima, Katsuyuki Takeda, Masahide Kobayashi, Noboru Onodera
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Patent number: 7102264Abstract: A synchronous induction motor features improved assemblability of a rotor, significantly reduced production cost, and improved operation performance of the motor. A plurality of die-cast secondary conductors is provided around a rotor yoke constituting the rotor of the synchronous induction motor. End rings are die-cast integrally with the secondary conductors on the peripheral portions of both end surfaces of the rotor yoke. Permanent magnets are inserted into slots formed such that they penetrate the rotor yoke. The openings of both ends of the slots are closed by a pair of end surface members formed of a non-magnetic constituent. One of the end surface members is secured to the rotor yoke by one of the end rings when the secondary conductors and the end rings are formed. The other end surface member is secured to the rotor yoke by a fixture.Type: GrantFiled: July 29, 2004Date of Patent: September 5, 2006Assignee: Sanyo Electric Co., Ltd.Inventors: Toshihito Yanashima, Keijiro Igarashi, Masaaki Takezawa, Kazuhiko Arai, Eiichi Murata, Noboru Onodera, Shigemi Koiso, Kazuhiro Enomoto, Yoshitomo Nakayama
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Publication number: 20060182302Abstract: A speaker is provided which includes a magnetic circuit, a voice coil bobbin having a voice coil wound therearound, and a vibration system having a spider and a diaphragm combined into an integrated component. In the speaker described above, the spider is located within the voice coil bobbin, fixedly attached to the center portion of the magnetic circuit, and has its outer circumference attached to the voice coil bobbin so that the voice coil wound around the voice coil bobbin is suspended in a magnetic gap of the magnetic circuit. Since the spider and the diaphragm are integrated into one component reducing the number of components, the speaker has its structure simplified therefore reducing the production cost, and at the same time, the speaker, even if the diaphragm has a small diameter, achieves a wide reproduction frequency bandwidth and withstands a large power input thus providing a high reliability.Type: ApplicationFiled: February 10, 2006Publication date: August 17, 2006Inventor: Noboru Onodera
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Publication number: 20050253474Abstract: A synchronous induction motor features improved assemblability of a rotor, significantly reduced production cost, and improved operation performance of the motor. A plurality of die-cast secondary conductors is provided around a rotor yoke constituting the rotor of the synchronous induction motor. End rings are die-cast integrally with the secondary conductors on the peripheral portions of both end surfaces of the rotor yoke. Permanent magnets are inserted into slots formed such that they penetrate the rotor yoke. The openings of both ends of the slots are closed by a pair of end surface members formed of a non-magnetic constituent. One of the end surface members is secured to the rotor yoke by one of the end rings when the secondary conductors and the end rings are formed. The other end surface member is secured to the rotor yoke by a fixture.Type: ApplicationFiled: July 29, 2004Publication date: November 17, 2005Inventors: Toshihito Yanashima, Keijiro Igarashi, Masaaki Takezawa, Kazuhiko Arai, Eiichi Murata, Noboru Onodera, Shigemi Koiso, Kazuhiro Enomoto, Yoshitomo Nakayama
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Publication number: 20050180767Abstract: An image forming apparatus in which a visible image is transferred to a transfer material includes a pre-transfer exposing unit that makes only a portion of a latent image carrier that corresponds to a leading edge of the transfer material expose, and a transfer-bias applying unit that applies a bias for transferring the visible image. The transfer-bias applying unit starts applying the bias to the transfer material, at least step-by-step, when a predetermined time is passed from a point of time at which the leading edge of the transfer material comes into a contact with the latent image carrier by controlling the pre-transfer exposing unit and a bias applying timing of the transfer-bias applying unit.Type: ApplicationFiled: December 17, 2004Publication date: August 18, 2005Inventors: Hirokazu Ishii, Satoshi Takano, Hiroshi Saitoh, Ryoh Tanoue, Itaru Matsuda, Yuji Suzuki, Eiji Shimojo, Noboru Onodera, Hidenori Nihei
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Publication number: 20040179966Abstract: There is here disclosed a terminal protective device for a compressor to which a terminal cover can be attached and held stably. The terminal protective device comprises a terminal fence fixed to the outer surface of a hermetically sealed vessel so as to surround a terminal attached to the hermetically sealed vessel, and a terminal cover attached to the terminal fence so as to cover the terminal. The terminal cover has the shape of a substantially rectangular box and is held on its upper or lower surface as well as right and left surfaces by the terminal fence.Type: ApplicationFiled: February 19, 2004Publication date: September 16, 2004Applicant: Sanyo Electric Co., Ltd.Inventors: Uehito Kawashima, Katsuyuki Takeda, Masahide Kobayashi, Noboru Onodera
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Publication number: 20040084984Abstract: A synchronous induction motor features improved assemblability of a rotor, significantly reduced production cost, and improved operation performance of the motor. A plurality of die-cast secondary conductors is provided around a rotor yoke constituting the rotor of the synchronous induction motor. End rings are die-cast integrally with the secondary conductors on the peripheral portions of both end surfaces of the rotor yoke. Permanent magnets are inserted into slots formed such that they penetrate the rotor yoke. The openings of both ends of the slots are closed by a pair of end surface members formed of a non-magnetic constituent. One of the end surface members is secured to the rotor yoke by one of the end rings when the secondary conductors and the end rings are formed. The other end surface member is secured to the rotor yoke by a fixture.Type: ApplicationFiled: October 27, 2003Publication date: May 6, 2004Applicant: SANYO ELECTRIC CO., LTD.Inventors: Toshihito Yanashima, Keijiro Igarashi, Masaaki Takezawa, Kazuhiko Arai, Eiichi Murata, Noboru Onodera, Shigemi Koiso, Kazuhiro Enomoto, Yoshitomo Nakayama
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Patent number: 6700270Abstract: A synchronous induction motor realizing a great reluctance torque by concentrating a magnetomotive force generated by a rotor provided with a permanent magnet having a two-pole structure, and having a high efficiency. The synchronous induction motor has a stator provided with a stator winding, a rotor rotating within the stator, a cage-type secondary electric conductor provided in a peripheral portion of a rotor yoke portion constituting the rotor, and a permanent magnet inserted into the rotor yoke portion and having a two-pole structure, and the magnetomotive force generated by one pole of the rotor is set to a value equal to or less than 10% of a peak value in a predetermined range near an electrical angle of 0 degrees or 180 degrees.Type: GrantFiled: December 5, 2001Date of Patent: March 2, 2004Assignee: Sanyo Electric Co., Ltd.Inventors: Toshihito Yanashima, Kazuhiko Arai, Masaaki Takezawa, Keijiro Igarashi, Eiichi Murata, Masanori Yamashita, Yoshitomo Nakayama, Shigemi Koiso, Noboru Onodera
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Patent number: 6603946Abstract: An image forming apparatus including an image carrier for forming a toner image thereon. A conveyor conveys a synthetic resin sheet. An image transferring device transfers the toner image from the image carrier to the synthetic resin sheet being conveyed by the conveyor. A fixing device is located downstream of the image carrier in a direction of sheet conveyance for fixing the toner image transferred to the synthetic resin sheet. The fixing device includes a heat roller capable of contacting the synthetic resin sheet. The heat roller is freely rotatable and caused to rotate by the synthetic resin sheet being conveyed by the conveyor when the sheet contacts the heat roller.Type: GrantFiled: May 16, 2001Date of Patent: August 5, 2003Assignee: Tohoku Ricoh Co., Ltd.Inventors: Hiroshi Akema, Haruki Morikawa, Masamune Koyanagi, Noboru Onodera
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Patent number: 6556803Abstract: A printer or similar electrophotographic image forming apparatus for forming an image on an optical disk or similar synthetic resin sheet is disclosed. The apparatus of the present invention exerts a preselected pressure for each of image transfer and image fixation to thereby insure high quality images. Further, the apparatus matches the moving speed of the surface of a synthetic resin sheet and the peripheral speed of an image carrier or that of a fixing member. In addition, the apparatus protects the image carrier and fixing member from damage and prevents a parting agent from depositing on at least the image forming range of the image carrier.Type: GrantFiled: July 30, 2001Date of Patent: April 29, 2003Assignee: Tohoku Ricoh Co., Ltd.Inventors: Hiroshi Akema, Noboru Onodera, Haruki Morikawa
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Publication number: 20020140309Abstract: A synchronous induction motor features improved assemblability of a rotor, significantly reduced production cost, and improved operation performance of the motor. A plurality of die-cast secondary conductors is provided around a rotor yoke constituting the rotor of the synchronous induction motor. End rings are die-cast integrally with the secondary conductors on the peripheral portions of both end surfaces of the rotor yoke. Permanent magnets are inserted into slots formed such that they penetrate the rotor yoke. The openings of both ends of the slots are closed by a pair of end surface members formed of a non-magnetic constituent. One of the end surface members is secured to the rotor yoke by one of the end rings when the secondary conductors and the end rings are formed. The other end surface member is secured to the rotor yoke by a fixture.Type: ApplicationFiled: March 28, 2002Publication date: October 3, 2002Applicant: SANYO ELECTRIC CO., LTD.Inventors: Toshihito Yanashima, Keijiro Igarashi, Masaaki Takezawa, Kazuhiko Arai, Eiichi Murata, Noboru Onodera, Shigemi Koiso, Kazuhiro Enomoto, Yoshitomo Nakayama
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Publication number: 20020140307Abstract: An object of the invention is to provide a synchronous induction motor realizing a great reluctance torque by concentrating a magnetomotive force generated by a rotor provided with a permanent magnet having a two-pole structure, and having a high efficiency. The synchronous induction motor has a stator provided with a stator winding, a rotor rotating within the stator, a cage-type secondary electric conductor provided in a peripheral portion of a rotor yoke portion constituting the rotor, and a permanent magnet inserted into the rotor yoke portion and having a two-pole structure, and the magnetomotive force generated by one pole of the rotor is set to a value equal to or less than 10% of a peak value in a predetermined range near an electrical angle 0 degree or 180 degrees.Type: ApplicationFiled: December 5, 2001Publication date: October 3, 2002Inventors: Toshihito Yanashima, Kazuhiko Arai, Masaaki Takezawa, Keijiro Igarashi, Eiichi Murata, Masanori Yamashita, Yoshitomo Nakayama, Shigemi Koiso, Noboru Onodera
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Patent number: 6456821Abstract: An image forming apparatus for forming an image on an optical disk or similar synthetic resin sheet is disclosed. The image forming apparatus feeds and collects the synthetic resin sheet from a conveyance path at the same position. A single space therefore suffices for both of the feed and collection of the synthetic resin sheet, promoting the compact configuration of the apparatus. The conveyance path is inclined relative to the horizontal plane and therefore saves space to thereby promote the efficient use of a limited floor area.Type: GrantFiled: May 17, 2001Date of Patent: September 24, 2002Assignee: Tohoku Ricoh Co., Ltd.Inventor: Noboru Onodera
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Publication number: 20020021921Abstract: A printer or similar electrophotographic image forming apparatus for forming an image on an optical disk or similar synthetic resin sheet is disclosed. The apparatus of the present invention exerts a preselected pressure for each of image transfer and image fixation to thereby insure high quality images. Further, the apparatus matches the moving speed of the surface of a synthetic resin sheet and the peripheral speed of an image carrier or that of a fixing member. In addition, the apparatus protects the image carrier and fixing member from damage and prevents a parting agent from depositing on at least the image forming range of the image carrier.Type: ApplicationFiled: July 30, 2001Publication date: February 21, 2002Applicant: Tohoku Ricoh, Co., Ltd.Inventors: Hiroshi Akema, Noboru Onodera, Haruki Morikawa
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Publication number: 20020018675Abstract: A printer or similar electrophotographic image forming apparatus for forming an image on an optical disk or similar synthetic resin sheet is disclosed. The apparatus of the present invention guarantees a sufficient period of time for fixation to thereby obviate defective fixation while producing as great a number of prints as possible. At the same time, the apparatus of the present invention saves energy and space and accurately matches the peripheral speed of a heat roller and the conveying speed of the synthetic resin sheet.Type: ApplicationFiled: May 16, 2001Publication date: February 14, 2002Applicant: Tohoku Ricoh Co., Ltd,Inventors: Hiroshi Akema, Haruki Morikawa, Masamune Koyanagi, Noboru Onodera