Patents by Inventor Tomohiko Kamimura
Tomohiko Kamimura 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: 9103484Abstract: A connection device includes: a pedestal having a placement face; a connector provided in the placement face of the pedestal; a support provided adjacent to the pedestal and extended in a direction crossing the placement surface of the pedestal and having a face to define a space for placing a portable terminal on the connector and on a contact face in the face of the support, the contact face being movable in a thickness direction of the support; and an elastic member that is deformed by the movement of the contact face and applies an elastic force generated by the deformation in a direction of blocking the movement of the contact face with respect to the thickness direction of the support.Type: GrantFiled: October 5, 2010Date of Patent: August 11, 2015Assignees: Yamaha Corporation, Hosiden CorporationInventors: Toyofumi Hayashi, Tomohiko Kamimura, Satoru Fujiwara, Hiroyoshi Shinozuka, Takuro Michinomoto
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Patent number: 9055359Abstract: An electroacoustic transducing device such as a small speaker or receiver used in a portable telephone or the like. A yoke-integral frame is formed by a simple process, and the number of components and production steps for producing the electroacoustic transducing device are reduced, thereby improving productivity. The transducing device having: a magnetic circuit having a yoke, a magnet, and a pole piece; a vibration system having a diaphragm and a voice coil; and a frame which holds the magnetic circuit and the vibration system. The voice coil is placed in a magnetic gap, and the frame is formed by performing a pressing process on one sheet-like metal material into a bottomed tubular shape, and at least two places of the bottom plate being cut and raised to form a bottom frame-like yoke portion, thereby being formed into a yoke-integral type.Type: GrantFiled: February 9, 2009Date of Patent: June 9, 2015Assignee: HOSIDEN CORPORATIONInventors: Tomohiko Kamimura, Hideo Yuasa, Jinlong Ren, Hidenori Motonaga, Katsunari Fujita
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Patent number: 8442261Abstract: The present invention provides a dome-shaped diaphragm fabricated based on a film base of polyethylene terephthalate resin film. The diaphragm includes a first vibrating part of a dome shape or a flat shape, and a second vibrating part of an annular shape. The second vibrating part includes a peripheral portion of the film base provided around a central portion of the film base. The first vibrating part includes the central portion of the film base, a thermosensitive adhesive resin film, provided on the central portion, and a fiber sheet made of a woven fabric using carbon fiber or an embossed nonwoven fabric. The fiber sheet is layered over the central portion with the thermosensitive adhesive resin film interposed therebetween.Type: GrantFiled: May 12, 2009Date of Patent: May 14, 2013Assignee: Hosiden CorporationInventors: Tomohiko Kamimura, Hideo Yuasa, Masahito Ikeda
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Patent number: 8290201Abstract: The invention provides a speaker in which a damper is effectively added without impairing the thinness of the speaker, and which, although the speaker is thin and small, exhibits high withstand input and high output power performances. A damper (14) is disposed between the lower end of a voice coil bobbin (12) and a magnet (3) of a magnetic circuit (5), and supports a vibration system (13) in a manner that the system is vibratable with respect to the magnet (3).Type: GrantFiled: June 11, 2010Date of Patent: October 16, 2012Assignee: Hosiden CorporationInventors: Tomohiko Kamimura, Hideo Yuasa
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Patent number: 8041070Abstract: The invention relates to a small speaker. A speaker 1 comprises: a magnetic circuit 3 having a yoke 7, a magnet 15, and a pole piece 16; a vibration system 4 having a voice coil 18 and diaphragm 19 which are joined to each other through a voice coil bobbin 23; and a frame 2 which holds the magnetic circuit 3 and the vibration system. The voice coil is placed in a magnetic gap 17. In the speaker, dampers 26 which are extended respectively from a plurality of places of an opening side end portion of the voice coil bobbin are disposed, and tip end portions of said dampers are bonded and fixed to the frame. The voice coil bobbin is supported from the lower side. The resistance to input is improved without impairing the thinness of the speaker 1, and while suppressing the increase of the production cost.Type: GrantFiled: June 2, 2009Date of Patent: October 18, 2011Assignee: Hosiden CorporationInventors: Tomohiko Kamimura, Hideo Yuasa
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Publication number: 20110123061Abstract: A yoke-integral frame is formed by a simple pressing process, and the numbers of components and production steps of an electroacoustic transducing device are reduced, thereby improving the productivity. In an electroacoustic transducing device having: a magnetic circuit 13 having a yoke, a magnet 11, and a pole piece 12; a vibration system 16 having a diaphragm 14 and a voice coil 15; and a frame 1 which holds the magnetic circuit 13 and the vibration system 16, the voice coil being placed in a magnetic gap 21, the frame 1 is formed by performing a pressing process on one sheet-like metal material into a bottomed tubular shape, and at least two places of the bottom plate 2 are cut and raised to form a bottomed frame-like yoke portion 4, thereby being formed into a yoke-integral type.Type: ApplicationFiled: February 9, 2009Publication date: May 26, 2011Applicant: HOSIDEN CORPORATIONInventors: Tomohiko Kamimura, Hideo Yuasa, Jinlong Ren, Hidenori Motonaga, Katsunari Fujita
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Publication number: 20110079701Abstract: A connection device includes: a pedestal having a placement face; a connector provided in the placement face of the pedestal; a support provided adjacent to the pedestal and extended in a direction crossing the placement surface of the pedestal and having a face to define a space for placing a portable terminal on the connector and on a contact face in the face of the support, the contact face being movable in a thickness direction of the support; and an elastic member that is deformed by the movement of the contact face and applies an elastic force generated by the deformation in a direction of blocking the movement of the contact face with respect to the thickness direction of the support.Type: ApplicationFiled: October 5, 2010Publication date: April 7, 2011Applicants: YAMAHA CORPORATION, HOSIDEN CORPORATIONInventors: Toyofumi HAYASHI, Tomohiko KAMIMURA, Satoru FUJIWARA, Hiroyoshi SHINOZUKA, Takuro MICHINOMOTO
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Publication number: 20110075880Abstract: The invention provides a speaker damper (50) which can realize improvement of the productivity of a dynamic speaker (1), and a speaker (1) including the speaker damper. In the damper (50), lead portions (52) for guiding voice coil lead wires (21b) to external connection terminals (30) while laying the lead wires on one surface is disposed, and the process of laying the voice coil lead wires (21b) by means of forming is realized not in the air of the interior of a frame (60), but on one surfaces of the lead portions (52).Type: ApplicationFiled: September 24, 2010Publication date: March 31, 2011Applicant: HOSIDEN CORPORATIONInventors: Tomohiko Kamimura, Hideo Yuasa, Shuji Sato
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Publication number: 20100316249Abstract: The invention provides a speaker in which a damper is effectively added without impairing the thinness of the speaker, and which, although the speaker is thin and small, exhibits high withstand input and high output power performances. A damper (14) is disposed between the lower end of a voice coil bobbin (12) and a magnet (3) of a magnetic circuit (5), and supports a vibration system (13) in a manner that the system is vibratable with respect to the magnet (3).Type: ApplicationFiled: June 11, 2010Publication date: December 16, 2010Applicant: HOSIDEN CORPORATIONInventors: Tomohiko Kamimura, Hideo Yuasa
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Publication number: 20090304225Abstract: The present invention provides a dome-shaped diaphragm fabricated based on a film base of polyethylene terephthalate resin film. The diaphragm includes a first vibrating part of a dome shape or a flat shape, and a second vibrating part of an annular shape. The second vibrating part includes a peripheral portion of the film base provided around a central portion of the film base. The first vibrating part includes the central portion of the film base, a thermosensitive adhesive resin film, provided on the central portion, and a fiber sheet made of a woven fabric using carbon fiber or an embossed nonwoven fabric. The fiber sheet is layered over the central portion with the thermosensitive adhesive resin film interposed therebetween.Type: ApplicationFiled: May 12, 2009Publication date: December 10, 2009Applicant: HOSIDEN CORPORATIONInventors: Tomohiko KAMIMURA, Hideo Yuasa, Masahito Ikeda
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Publication number: 20090296979Abstract: The invention provides a speaker comprising: a magnetic circuit 3; a vibration system 4 in which a diaphragm 22 is attached to a voice coil 21; and a frame 2 which supports the magnetic circuit 3 and the vibration system 4. The voice coil 21 is placed in a magnetic gap 17. By taking advantage of the characteristics of a plastic magnet that it can be easily processed into a desired shape, the magnetic circuit 3 is configured by: a plastic magnet 16 having a T-like section shape; and a yoke 10 which is continuously disposed in a bottom portion side and periphery of the plastic magnet 16. The number of components of the magnetic circuit, which conventionally has the three-piece structure, is reduced, so that the mass productivity of a small and thin speaker can be enhanced.Type: ApplicationFiled: June 2, 2009Publication date: December 3, 2009Applicant: Hosiden CorporationInventors: Tomohiko Kamimura, Hideo Yuasa
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Publication number: 20090296978Abstract: The invention relates to a small speaker. A speaker 1 comprises: a magnetic circuit 3 having a yoke 7, a magnet 15, and a pole piece 16; a vibration system 4 having a voice coil 18 and diaphragm 19 which are joined to each other through a voice coil bobbin 23; and a frame 2 which holds the magnetic circuit 3 and the vibration system. The voice coil is placed in a magnetic gap 17. In the speaker, dampers 26 which are extended respectively from a plurality of places of an opening side end portion of the voice coil bobbin are disposed, and tip end portions of said dampers are bonded and fixed to the frame. The voice coil bobbin is supported from the lower side. The resistance to input is improved without impairing the thinness of the speaker 1, and while suppressing the increase of the production cost.Type: ApplicationFiled: June 2, 2009Publication date: December 3, 2009Applicant: Hosiden CorporationInventors: Tomohiko Kamimura, Hideo Yuasa
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Patent number: 7187956Abstract: In a portable communication apparatus of the invention, an inner wall (22) of an openable/closable member (2) faces the front face of a diaphragm of a close-talking microphone (5) via a sound path (64), and an outer sound hole (27) faces the rear face of the diaphragm of the close-talking microphone (5) via a sound path (65). An inner sound hole (26) is biasedly located in a position which is close to a free end of the openable/closable member (2), and the outer sound hole (27) is biasedly located in a position which is close to the center position of opening and closing movements of the openable/closable member (2), thereby obtaining a speech quality of a very high S/N ratio at a substantially same degree in both the cases where the openable/closable member (2) is opened, and where the member is closed.Type: GrantFiled: September 17, 2002Date of Patent: March 6, 2007Assignee: Hosiden CorporationInventors: Shigeru Sugino, Kouji Saitou, Toshiya Inubushi, Shushin Noda, Koji Nasu, Tomohiko Kamimura
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Publication number: 20060093165Abstract: A flat panel speaker has a construction in which an actuator 10 vibrates a panel to radiate sound, the panel being held at a peripheral portion thereof on a frame by gaskets, wherein the gasket provided at a position opposite from a position at which the actuator is placed has a higher hardness than that of the gasket provided at another position. The side on which the gasket having the higher hardness is placed is a substantially fixed end to facilitate vibration of the panel, thereby improving sound quality.Type: ApplicationFiled: October 17, 2005Publication date: May 4, 2006Inventors: Tomohiko Kamimura, Satoru Fujiwara, Eiki Fujii
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Patent number: 6842530Abstract: The present invention relates to an electric acoustic converter used as a speaker or a receiver of a mobile communication device such as a portable telephone or the like. In the electric acoustic converter according to the present invention, the size reduction and thinning of the thickness of the electric acoustic converter can be promoted by providing surface-like rear surface terminals 81 and 82 on the exposed surface 33 which is a rear surface of the yoke 3.Type: GrantFiled: June 6, 2001Date of Patent: January 11, 2005Assignees: NEC Corporation, Hosiden CorporationInventors: Kenji Fukazawa, Tomohiko Kamimura, Satoru Fujiwara, Naoya Fujimoto
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Publication number: 20030064687Abstract: In a portable communication apparatus of the invention, an inner wall (22) of an openable/closable member (2) faces the front face of a diaphragm of a close-talking microphone (5) via a sound path (64), and an outer sound hole (27) faces the rear face of the diaphragm of the close-talking microphone (5) via a sound path (65). An inner sound hole (26) is biasedly located in a position which is close to a free end of the openable/closable member (2), and the outer sound hole (27) is biasedly located in a position which is close to the center position of opening and closing movements of the openable/closable member (2), thereby obtaining a speech quality of a very high S/N ratio at a substantially same degree in both the cases where the openable/closable member (2) is opened, and where the member is closed.Type: ApplicationFiled: September 17, 2002Publication date: April 3, 2003Applicant: Mitsubishi Denki Kabushiki KaishaInventors: Shigeru Sugino, Kouji Saitou, Toshiya Inubushi, Shushin Noda, Koji Nasu, Tomohiko Kamimura
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Patent number: 6438248Abstract: A hand-free apparatus having improved portability is disclosed. The apparatus includes an apparatus body including a transmitter and a receiver, an input/output cable connected with the transmitter and the receiver and extending outside from the apparatus body, a cable case incorporating a cable spool capable of taking up the cable and a retaining member capable of detachably retaining the apparatus body on the cable case. The apparatus body when retained by the retaining member extends along a peripheral face of the cable spool.Type: GrantFiled: August 1, 2000Date of Patent: August 20, 2002Assignee: Hosiden CorporationInventors: Tomohiko Kamimura, Satoru Fujiwara, Koji Nasu, Shingo Sato
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Publication number: 20010053233Abstract: The present invention relates to an electric acoustic converter used as a speaker or a receiver of a mobile communication device such as a portable telephone or the like. In the electric acoustic converter according to the present invention, the size reduction and thinning of the thickness of the electric acoustic converter can be promoted by providing surface-like rear surface terminals 81 and 82 on the exposed surface 33 which is a rear surface of the yoke 3.Type: ApplicationFiled: June 6, 2001Publication date: December 20, 2001Applicant: NEC CorporationInventors: Kenji Fukazawa, Tomohiko Kamimura, Satoru Fujiwara, Naoya Fujimoto
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Patent number: D519986Type: GrantFiled: December 10, 2004Date of Patent: May 2, 2006Assignee: Hosiden CorporationInventors: Tomohiko Kamimura, Satoru Fujiwara, Tomohiro Oda
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Patent number: D529482Type: GrantFiled: November 8, 2005Date of Patent: October 3, 2006Assignee: Hosiden CorporationInventors: Tomohiko Kamimura, Satoru Fujiwara, Tomohiro Oda