Patents by Inventor Keitaro Fujiwara

Keitaro Fujiwara 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: 8983110
    Abstract: A headphone device including a driver unit, and an ear-hook hanger of a loop shape that is integrated with the driver unit and supports an entire circumference of an ear capsule is provided.
    Type: Grant
    Filed: February 20, 2014
    Date of Patent: March 17, 2015
    Assignee: Sony Corporation
    Inventors: Keitaro Fujiwara, Katsunori Murozaki
  • Publication number: 20140198943
    Abstract: A headphone device including a driver unit, and an ear-hook hanger of a loop shape that is integrated with the driver unit and supports an entire circumference of an ear capsule is provided.
    Type: Application
    Filed: February 20, 2014
    Publication date: July 17, 2014
    Applicant: Sony Corporation
    Inventors: Keitaro FUJIWARA, Katsunori MUROZAKI
  • Patent number: 8767997
    Abstract: A headphone device including a driver unit, and an ear-hook hanger of a loop shape that is integrated with the driver unit and supports an entire circumference of an ear capsule is provided.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: July 1, 2014
    Assignee: Sony Corporation
    Inventors: Keitaro Fujiwara, Katsunori Murozaki
  • Patent number: 8213665
    Abstract: A headphone includes a headband and a left housing and a right housing. The left housing and the right housing are mounted to respective ends of the headband through respective hangers. Each housing accommodates a drive unit. Sliders including hollow cylindrical members are mounted to the respective hangers, and are slidably supported at slidably supporting portions at the respective ends of the headband. A cord, disposed between the left and right housings and used to pass drive electric current to the drive unit in one of the housings, is spirally accommodated in the hollow cylindrical members making up the respective sliders so that the cord is capable of being stretched and compressed.
    Type: Grant
    Filed: August 28, 2007
    Date of Patent: July 3, 2012
    Assignee: Sony Corporation
    Inventors: Keitaro Fujiwara, Naotaka Tsunoda, Yuusuke Oosato
  • Publication number: 20120043111
    Abstract: The present disclosure provides a long body unit with slider, including, a first long body, a second long body, and a slider provided for the first long body and the second long body, the slider including, a connection section by which the first long body and the second long body are clamped and are thereby united together, a separation section by which the first long body and the second long body united together by the connection section are separated from each other, and a restriction section by which the first long body and/or the second long body is restricted in rotation about an axial direction.
    Type: Application
    Filed: August 12, 2011
    Publication date: February 23, 2012
    Applicant: Sony Corporation
    Inventors: Shunsuke Shiomi, Keitaro Fujiwara
  • Patent number: 7853035
    Abstract: Disclosed herein is a pair of headphones that includes a head band having a pair of support arms and a pair of housings angularly movably mounted on the support arms, respectively, by pivots in confronting relation to each other. Each of the housings has a presser disposed therein near the pivot and projecting substantially perpendicularly to an outer surface of the housing, the presser having a head held against one of the support arms under resiliency, the head having a step engageable with the support arm for limiting angular movement of the housing with respect to the support arm.
    Type: Grant
    Filed: August 25, 2006
    Date of Patent: December 14, 2010
    Assignee: Sony Corporation
    Inventors: Naotaka Tsunoda, Keitaro Fujiwara
  • Publication number: 20090052719
    Abstract: A headphone device including a driver unit, and an ear-hook hanger of a loop shape that is integrated with the driver unit and supports an entire circumference of an ear capsule is provided.
    Type: Application
    Filed: August 18, 2008
    Publication date: February 26, 2009
    Inventors: Keitaro Fujiwara, Katsunori Murozaki
  • Publication number: 20080056525
    Abstract: A headphone includes a headband and a left housing and a right housing. The left housing and the right housing are mounted to respective ends of the headband through respective hangers. Each housing accommodates a drive unit. Sliders including hollow cylindrical members are mounted to the respective hangers, and are slidably supported at slidably supporting portions at the respective ends of the headband. A cord, disposed between the left and right housings and used to pass drive electric current to the drive unit in one of the housings, is spirally accommodated in the hollow cylindrical members making up the respective sliders so that the cord is capable of being stretched and compressed.
    Type: Application
    Filed: August 28, 2007
    Publication date: March 6, 2008
    Inventors: Keitaro FUJIWARA, Naotaka Tsunoda, Yuusuke Oosato
  • Publication number: 20070053539
    Abstract: Disclosed herein is a pair of headphones that includes a head band having a pair of support arms and a pair of housings angularly movably mounted on the support arms, respectively, by pivots in confronting relation to each other. Each of the housings has a presser disposed therein near the pivot and projecting substantially perpendicularly to an outer surface of the housing, the presser having a head held against one of the support arms under resiliency, the head having a step engageable with the support arm for limiting angular movement of the housing with respect to the support arm.
    Type: Application
    Filed: August 25, 2006
    Publication date: March 8, 2007
    Applicant: Sony Corporation
    Inventors: Naotaka Tsunoda, Keitaro Fujiwara
  • Publication number: 20060104471
    Abstract: A headphone apparatus the acoustic characteristics of which can be easily changed in accordance with the type of content the user wants to listen to. An adjusting knob provided on the housing of the headphone apparatus is moved, closing an opening made in a baffle. As a result, an acoustic space defined by the inner side of the baffle and an ear pad is more closed, thus increasing the level of low-frequency components of the sound generated by a sound-generating unit. Hence, the acoustic characteristics of the apparatus can be easily changed as the user desires.
    Type: Application
    Filed: October 18, 2005
    Publication date: May 18, 2006
    Applicant: Sony Corporation
    Inventors: Naotaka Tsunoda, Keitaro Fujiwara