Patents by Inventor Terutomo Kajiwara

Terutomo Kajiwara 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: 7300302
    Abstract: An AC adapter has a synthetic resin case, a switching regulator circuit assembly with an AC input terminal in the synthetic resin case, a synthetic resin name plate, and a metallic Bsheet for heat radiation separate from the resin name plate. A surface of the case has a first concave portion for the name plate and a second concave portion for the metallic sheet in the first concave portion, the metallic sheet being attached in the second concave portion with the name plate attached in the first concave portion and covering the attached metallic sheet.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: November 27, 2007
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Terutomo Kajiwara, Dai Sasaki, Shuji Wakafuji
  • Publication number: 20070002597
    Abstract: An AC adapter includes: a synthetic resin case; a switching regulator circuit assembly having an AC input terminal and a DC output terminal, the switching regulator circuit assembly being housed in the synthetic resin case; a synthetic resin name plate; and a metallic sheet for heat radiation separate from the resin name plate. The metallic sheet is attached to a surface of the case except for a portion for the AC input terminal.
    Type: Application
    Filed: April 21, 2006
    Publication date: January 4, 2007
    Inventors: Terutomo Kajiwara, Dai Sasaki, Shuji Wakafuji
  • Patent number: 6638113
    Abstract: A pin configuration adapter is disclosed which can be attached to an AC-adapter having a plug body having a first pin configuration and an AC-adapter housing having a power conversion circuit. The plug body is rotatable between a first position where it is accommodated in a recess formed in the AC-adapter housing and a second position where it is in an upright position with respect to the AC-adapter housing. The pin configuration adapter includes a plug part having a second pin configuration different from the first pin configuration; a receptacle part whereto the plug body in the second position can be inserted; a pin configuration adapter housing having an internal connection mechanism for electrically connecting the plug body and the plug part; and an engaging part provided on the pin configuration adapter housing and engages with the recess of the AC-adapter housing.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: October 28, 2003
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Terutomo Kajiwara, Takenori Kinkawa, Hidetoshi Hamai
  • Publication number: 20020127918
    Abstract: A combination includes an AC-adapter and a pin configuration adapter. The AC-adapter includes a plug body having first pins of a first configuration and an AC-adapter housing having a conversion circuit for converting an electric power supplied via the plug body. The pin configuration adapter includes a plug part having second pins of a having configuration different from the first pin configuration, a receptacle part whereto the first pins can be inserted and a pin configuration adapter housing having an internal connection mechanism for electrically connecting the plug body and the plug part. The AC-adapter is provided with engagement grooves which engage with protrusions provided on said pin configuration adapter.
    Type: Application
    Filed: February 19, 2002
    Publication date: September 12, 2002
    Inventors: Terutomo Kajiwara, Takenori Kinkawa, Hidetoshi Hamai
  • Publication number: 20020081906
    Abstract: A pin configuration adapter is disclosed which can be attached to an AC-adapter having a plug body having a first pin configuration and an AC-adapter housing having a power conversion circuit. The plug body is rotatable between a first position where it is accommodated in a recess formed in the AC-adapter housing and a second position where it is in an upright position with respect to the AC-adapter housing. The pin configuration adapter includes a plug part having a second pin configuration different from the first pin configuration; a receptacle part whereto the plug body in the second position can be inserted; a pin configuration adapter housing having an internal connection mechanism for electrically connecting the plug body and the plug part; and an engaging part provided on the pin configuration adapter housing and engages with the recess of the AC-adapter housing.
    Type: Application
    Filed: December 6, 2001
    Publication date: June 27, 2002
    Inventors: Terutomo Kajiwara, Takenori Kinkawa, Hidetoshi Hamai
  • Patent number: D507532
    Type: Grant
    Filed: April 27, 2004
    Date of Patent: July 19, 2005
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Terutomo Kajiwara, Takayuki Katayama, Nobuki Itou
  • Patent number: D452842
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: January 8, 2002
    Assignee: Mitsumi Electric Co., Ltd.
    Inventors: Terutomo Kajiwara, Masayuki Hirabayashi, Hirotaka Yamamoto