Patents by Inventor Yoichiro Sumitani

Yoichiro Sumitani 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).

  • Patent number: 10694296
    Abstract: A shallow speaker and a method of manufacture for the shallow speaker. The method of assembly uses two different alignment jigs at two different stages of the assembly to ensure alignment of the speaker components. During manufacture, a subassembly of components is created in the speaker frame, and then removed along with the first alignment jig. A second alignment jig is then placed in the speaker, and the bobbin and voice coil added. The subassembly is then connected to the frame, and the voice coil connected to the external connection terminal. Finally, the cone and dust cap are installed.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: June 23, 2020
    Assignee: Sound Sources Technology Inc.
    Inventors: Yoichiro Sumitani, Ching-Huang Cheng, Chih-Huang Hsiao
  • Publication number: 20190335279
    Abstract: A shallow speaker and a method of manufacture for the shallow speaker. The method of assembly uses two different alignment jigs at two different stages of the assembly to ensure alignment of the speaker components. During manufacture, a subassembly of components is created in the speaker frame, and then removed along with the first alignment jig. A second alignment jig is then placed in the speaker, and the bobbin and voice coil added. The subassembly is then connected to the frame, and the voice coil connected to the external connection terminal. Finally, the cone and dust cap are installed.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 31, 2019
    Inventors: YOICHIRO SUMITANI, CHING-HUANG CHENG, CHIH-HUANG HSIAO
  • Patent number: 10349180
    Abstract: A shallow speaker and a method of manufacture for the shallow speaker. The method of assembly uses two different alignment jigs at two different stages of the assembly to ensure alignment of the speaker components. During manufacture, a subassembly of components is created in the speaker frame, and then removed along with the first alignment jig. A second alignment jig is then placed in the speaker, and the bobbin and voice coil added. The subassembly is then connected to the frame, and the voice coil connected to the external connection terminal. Finally, the cone and dust cap are installed.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: July 9, 2019
    Assignee: Sound Sources Technology, Inc.
    Inventors: Yoichiro Sumitani, Ching-Huang Cheng, Chih-Huang Hsiao
  • Publication number: 20180192201
    Abstract: A shallow speaker and a method of manufacture for the shallow speaker. The method of assembly uses two different alignment jigs at two different stages of the assembly to ensure alignment of the speaker components. During manufacture, a subassembly of components is created in the speaker frame, and then removed along with the first alignment jig. A second alignment jig is then placed in the speaker, and the bobbin and voice coil added. The subassembly is then connected to the frame, and the voice coil connected to the external connection terminal. Finally, the cone and dust cap are installed.
    Type: Application
    Filed: January 3, 2017
    Publication date: July 5, 2018
    Inventors: YOICHIRO SUMITANI, CHING-HUANG CHENG, CHIH-HUANG HSIAO
  • Publication number: 20150195629
    Abstract: A passive acoustic radiator has a forward radiating element and a reverse radiating element each defined by a front face and an opposed rear face. A forward diaphragm is coupled to a forward surround defined by an annular raised side coinciding with the forward front face and an opposed annular trough side coinciding with the forward rear face. A reverse diaphragm is coupled to a reverse surround defined by an annular raised side coinciding with the reverse front face and an opposed annular trough side coinciding with the reverse rear face. The forward radiating element and the reverse radiating element are attached to each other with the forward rear face being in an abutting relationship to the reverse rear face. An annular open space is defined at least partially by the respective trough sides of the forward and reverse radiating elements.
    Type: Application
    Filed: January 6, 2014
    Publication date: July 9, 2015
    Applicant: Sound Sources Technology, Inc.
    Inventors: Yoichiro Sumitani, Junji Iino
  • Patent number: 8897481
    Abstract: A grille attachment for a loudspeaker is disclosed. A grille retainer is defined by a retention lip portion, a radial rim interface portion, and a hinge portion. The radial rim interface portion is in an abutting relationship with a flange radial mounting surface of the loudspeaker basket. The hinge portion connects the retention lip portion and the radial rim interface portion. The retention lip portion extends toward a flanged rim of the speaker basket, and defines an inner retention surface that is opposed to a flange circumferential surface. A grille extends across the griller retainer and is defined by a grille body and a grille rim that is circumferentially disposed and extending from the grille body. The grille rim is interposed between the flange circumferential surface and the inner retention surface, with the retention lip portion exerting a radial compressive force against the grille rim.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: November 25, 2014
    Assignee: Sound Sources Technology, Inc.
    Inventors: Yoichiro Sumitani, Chun-Yi Lin, Yu-Ling Cheng
  • Publication number: 20140233786
    Abstract: A grille attachment for a loudspeaker is disclosed. A grille retainer is defined by a retention lip portion, a radial rim interface portion, and a hinge portion. The radial rim interface portion is in an abutting relationship with a flange radial mounting surface of the loudspeaker basket. The hinge portion connects the retention lip portion and the radial rim interface portion. The retention lip portion extends toward a flanged rim of the speaker basket, and defines an inner retention surface that is opposed to a flange circumferential surface. A grille extends across the griller retainer and is defined by a grille body and a grille rim that is circumferentially disposed and extending from the grille body. The grille rim is interposed between the flange circumferential surface and the inner retention surface, with the retention lip portion exerting a radial compressive force against the grille rim.
    Type: Application
    Filed: February 20, 2013
    Publication date: August 21, 2014
    Applicant: Sound Sources Technology, Inc.
    Inventors: Yoichiro Sumitani, Chun-Yi Lin, Yu-Ling Cheng
  • Patent number: 8724842
    Abstract: An apparatus for mounting a loudspeaker unit to a structure is disclosed. A primary mounting bracket is defined by an arcuate center section and a pair of opposed arms extending therefrom. There is at least one open groove and at least one substantially coextensive track spanning the arcuate center section. Each of the arms include a circular planar bearing structure rotatably engageable to a corresponding one of bracket coupling platforms on an enclosure of the loudspeaker unit. A tab defining at least one mounting hardware hole in axial alignment with open groove substantially throughout its length is in a guided sliding engagement with the track. The enclosure of the loudspeaker unit is rotatable about a first axis extending between the arms of the primary mounting bracket and about a second axis defined by a radial center of an arc corresponding to a travel path of the tab along the track.
    Type: Grant
    Filed: March 21, 2012
    Date of Patent: May 13, 2014
    Assignee: Sound Sources Technology, Inc.
    Inventors: Yoichiro Sumitani, Chun-Yi Lin, Yu-Ling Cheng, Chih-Huang Hsiao
  • Patent number: 8693723
    Abstract: A coaxial loudspeaker for reproducing an electrical sound signal is provided. The loudspeaker has a magnetic driver assembly with a first annular slot and an opposed, coaxial second annular slot, each establishing a permanent magnetic field therein from a single magnet. Independently driven first and second voice coils are positioned within the respective one of the first and second annular slots, each being connected to a transducer element.
    Type: Grant
    Filed: March 26, 2012
    Date of Patent: April 8, 2014
    Assignee: Sound Systems Technology, Inc.
    Inventors: Chun-Yi Lin, Yoichiro Sumitani
  • Publication number: 20130251187
    Abstract: An apparatus for mounting a loudspeaker unit to a structure is disclosed. A primary mounting bracket is defined by an arcuate center section and a pair of opposed arms extending therefrom. There is at least one open groove and at least one substantially coextensive track spanning the arcuate center section. Each of the arms include a circular planar bearing structure rotatably engageable to a corresponding one of bracket coupling platforms on an enclosure of the loudspeaker unit. A tab defining at least one mounting hardware hole in axial alignment with open groove substantially throughout its length is in a guided sliding engagement with the track. The enclosure of the loudspeaker unit is rotatable about a first axis extending between the arms of the primary mounting bracket and about a second axis defined by a radial center of an arc corresponding to a travel path of the tab along the track.
    Type: Application
    Filed: March 21, 2012
    Publication date: September 26, 2013
    Inventors: Yoichiro Sumitani, Chun-Yi Lin, Yu-Ling Cheng, Chih-Huang Hsiao
  • Publication number: 20120257783
    Abstract: A coaxial loudspeaker for reproducing an electrical sound signal is provided. The loudspeaker has a magnetic driver assembly with a first annular slot and an opposed, coaxial second annular slot, each establishing a permanent magnetic field therein from a single magnet. Independently driven first and second voice coils are positioned within the respective one of the first and second annular slots, each being connected to a transducer element.
    Type: Application
    Filed: March 26, 2012
    Publication date: October 11, 2012
    Inventors: Chun-Yi Lin, Yoichiro Sumitani
  • Patent number: 8229152
    Abstract: There is provided a speaker connector including first and second speaker elements each having an inward face, an opposing outward face, and an engagement wall extending between the inward and outward faces. The speaker elements are connectable to the first and second speakers, respectively. A connector housing includes first and second end faces disposed on opposing sides of a housing medial portion. First and second inner walls extend inwardly from the first and second end faces, respectively, to define first and second housing recesses. The first and second inner walls are configured to engage with the engagement wall of the respective speaker elements with the first speaker element being received within the first housing recess and the second speaker element being received within the second housing recess.
    Type: Grant
    Filed: July 11, 2008
    Date of Patent: July 24, 2012
    Inventors: Yoichiro Sumitani, Chun-Yi Lin
  • Patent number: 8175320
    Abstract: A coaxial loudspeaker for reproducing an electrical sound signal is provided. The loudspeaker has a magnetic driver assembly with a first annular slot and an opposed, coaxial second annular slot, each establishing a permanent magnetic field therein from a single magnet. Independently driven first and second voice coils are positioned within the respective one of the first and second annular slots, each being connected to a transducer element.
    Type: Grant
    Filed: June 27, 2007
    Date of Patent: May 8, 2012
    Inventors: Chun-Yi Lin, Yoichiro Sumitani
  • Patent number: 8175319
    Abstract: A moving coil loudspeaker has an interchangeable magnet assembly with a plurality of interchangeable magnet segments configured to be circumferentially disposed about a voice coil within the loudspeaker. Heat sink members can be arranged in between the magnet segments to absorb excess heat generated during operation of the loud speaker. In one embodiment, the magnet assembly has at least one annular magnetic member made up of the plurality of magnet segments, a plurality of heat sink members disposed in between the magnet segments, an annular first plate adjacent a first side of the annular magnetic member, and a yoke member having a second plate adjacent a second side of the annular magnetic member and a central cylindrical portion configured to pass through a central opening in the annular magnetic member.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: May 8, 2012
    Inventors: Yoichiro Sumitani, Chun-Yi Lin
  • Patent number: 8085967
    Abstract: A loudspeaker having a speaker basket including a basket rim, a speaker mounting hole, and a coupling hole disposed through the basket rim. The loudspeaker includes a first grill coupling engaged with the coupling hole, as well as a grill removably attached to the basket rim via the first grill coupling. The grill defines a solid surface portion which completely covers the speaker mounting hole and the coupling hole. The first grill coupling is interposed between the basket rim and the grill.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: December 27, 2011
    Inventors: Yoichiro Sumitani, Lin Chun-Yi
  • Patent number: 7970162
    Abstract: A bobbin interconnection assembly in a moving coil loudspeaker is disclosed. The assembly includes a first coupling member fixed to a central region of a diaphragm of the loudspeaker. The assembly also includes a second coupling member that may be removably engaged to the first coupling member. The second coupling member is fixed to an inner rim of an annular damper, and to a voice coil bobbin.
    Type: Grant
    Filed: October 3, 2006
    Date of Patent: June 28, 2011
    Inventors: Yoichiro Sumitani, Lin Chun-Yi
  • Patent number: 7899202
    Abstract: A loudspeaker includes a circular damper, a cone, and a cylindrical bobbin. The circular damper may include a centrally disposed cone attachment protuberance and a peripherally disposed top plate attachment section. The cone may have a central inner portion that may be attached to the cone attachment protuberance of the damper. The cone may be attached to the cylindrical bobbin, which may have a voice coil coupled thereto.
    Type: Grant
    Filed: April 17, 2006
    Date of Patent: March 1, 2011
    Assignee: Sound Sources Technology, Inc.
    Inventors: Yoichiro Sumitani, Lin Chun-Yi
  • Publication number: 20100008522
    Abstract: There is provided a speaker connector including first and second speaker elements each having an inward face, an opposing outward face, and an engagement wall extending between the inward and outward faces. The speaker elements are connectable to the first and second speakers, respectively. A connector housing includes first and second end faces disposed on opposing sides of a housing medial portion. First and second inner walls extend inwardly from the first and second end faces, respectively, to define first and second housing recesses. The first and second inner walls are configured to engage with the engagement wall of the respective speaker elements with the first speaker element being received within the first housing recess and the second speaker element being received within the second housing recess.
    Type: Application
    Filed: July 11, 2008
    Publication date: January 14, 2010
    Inventors: Yoichiro Sumitani, Chun-Yi Lin
  • Publication number: 20090310813
    Abstract: A moving coil loudspeaker has an interchangeable magnet assembly with a plurality of interchangeable magnet segments configured to be circumferentially disposed about a voice coil within the loudspeaker. Heat sink members can be arranged in between the magnet segments to absorb excess heat generated during operation of the loud speaker. In one embodiment, the magnet assembly has at least one annular magnetic member made up of the plurality of magnet segments, a plurality of heat sink members disposed in between the magnet segments, an annular first plate adjacent a first side of the annular magnetic member, and a yoke member having a second plate adjacent a second side of the annular magnetic member and a central cylindrical portion configured to pass through a central opening in the annular magnetic member.
    Type: Application
    Filed: June 11, 2008
    Publication date: December 17, 2009
    Inventors: Yoichiro Sumitani, Chun-Yi Lin
  • Publication number: 20090185694
    Abstract: A loudspeaker interconnect terminal for selectively coupling a plurality of loudspeaker drivers to a monophonic source and a stereophonic source. The terminal includes a body defined by a first side and a second side, and first and second sets of input terminals disposed on a respective one of the first and second sides. The terminal also includes an electrical switch with an actuator having a first position and a second position. The first set of input terminals are connected to the corresponding one of the second set of input terminals and a switch cover coupled to the actuator conceals at least a part of the first set of input terminals with the actuator in the first position.
    Type: Application
    Filed: January 21, 2008
    Publication date: July 23, 2009
    Inventors: Yoichiro Sumitani, Chun-Yi Lin, Chih-Huang Hsiao