Patents by Inventor Yuji Mitsunaga

Yuji Mitsunaga 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: 9712568
    Abstract: A server apparatus accesses a terminal apparatus connected via an IP network to a router from an externally provided terminal apparatus in a simple and firm manner without previously performing a complex setting operation.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: July 18, 2017
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yuji Arima, Kazuo Imafuku, Yuji Mitsunaga
  • Publication number: 20140122728
    Abstract: A server apparatus accesses a terminal apparatus connected via an IP network to a router from an externally provided terminal apparatus in a simple and firm manner without previously performing a complex setting operation.
    Type: Application
    Filed: January 6, 2014
    Publication date: May 1, 2014
    Applicant: PANASONIC CORPORATION
    Inventors: Yuji ARIMA, Kazuo Imafuku, Yuji Mitsunaga
  • Patent number: 8645549
    Abstract: The present invention has an object to provide a server apparatus capable of accessing a terminal apparatus connected via an IP network to a router from an externally provided terminal apparatus in a simple and firm manner without previously performing complex setting operation.
    Type: Grant
    Filed: July 1, 2011
    Date of Patent: February 4, 2014
    Assignee: Panasonic Corporation
    Inventors: Yuji Arima, Kazuo Imafuku, Yuji Mitsunaga
  • Publication number: 20110264811
    Abstract: The present invention has an object to provide a server apparatus capable of accessing a terminal apparatus connected via an IP network to a router from an externally provided terminal apparatus in a simple and firm manner without previously performing complex setting operation.
    Type: Application
    Filed: July 1, 2011
    Publication date: October 27, 2011
    Applicant: PANASONIC CORPORATION
    Inventors: Yuji Arima, Kazuo Imafuku, Yuji Mitsunaga
  • Publication number: 20090154474
    Abstract: The present invention has an object to provide a server apparatus capable of accessing a terminal apparatus connected via an IP network to a router from an externally provided terminal apparatus in a simple and firm manner without previously performing complex setting operation.
    Type: Application
    Filed: November 20, 2008
    Publication date: June 18, 2009
    Applicant: PANASONIC CORPORATION
    Inventors: Yuji Arima, Kazuo Imafuku, Yuji Mitsunaga
  • Patent number: 7406079
    Abstract: The present invention provides a repeater which automatically closes a dynamically opened port in accordance with prior setting, the repeater including: a port mapping table where a global IP address and an external port number, or an external port number on the Internet is associated with a local IP address and an internal port number of a terminal connected to a LAN; a control unit which, receiving a communications packet to which an external port number is specified, converts the external port number to an internal port number based on the port mapping table and transfers the internal port number to the LAN; a timer unit which counts the unoccupied time of the port after transferring a communications packet to which an external port number is specified; and a port management unit which checks whether the registered machine is present on the LAN and in case it is absent, deletes registration concerning the external port number from the port mapping table.
    Type: Grant
    Filed: April 20, 2004
    Date of Patent: July 29, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yasushi Yokomitsu, Akio Yao, Toshiyuki Hamasaki, Hiroshi Konishi, Masahiro Shigyo, Yuji Mitsunaga, Kiminori Washitani, Hideaki Nagao
  • Publication number: 20040218614
    Abstract: The present invention provides a repeater which automatically closes a dynamically opened port in accordance with prior setting, the repeater including: a port mapping table where a global IP address and an external port number, or an external port number on the Internet is associated with a local IP address and an internal port number of a terminal connected to a LAN; a control unit which, receiving a communications packet to which an external port number is specified, converts the external port number to an internal port number based on the port mapping table and transfers the internal port number to the LAN; a timer unit which counts the unoccupied time of the port after transferring a communications packet to which an external port number is specified; and a port management unit which checks whether the registered machine is present on the LAN and in case it is absent, deletes registration concerning the external port number from the port mapping table.
    Type: Application
    Filed: April 20, 2004
    Publication date: November 4, 2004
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Yasushi Yokomitsu, Akio Yao, Toshiyuki Hamasaki, Hiroshi Konishi, Masahiro Shigyo, Yuji Mitsunaga, Kiminori Washitani, Hideaki Nagao
  • Patent number: 5950161
    Abstract: A multiplexed-information receiving apparatus and a navigation system for converting character information as received into speech information for presentation of the information in a voice. The multiplexed-information receiving apparatus includes a receiver-unit for receiving character-multiplexed information, a demultiplexing unit for demultiplexing the character-multiplexed information received by the receiver unit, a speech synthesizing unit for converting character information outputted from the demultiplexing unit into speech information, and a speech output unit for outputting the speech information in a voice signal.
    Type: Grant
    Filed: June 4, 1996
    Date of Patent: September 7, 1999
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Makoto Kozuma, Yuji Mitsunaga, Keiich Zenmyo
  • Patent number: 5617100
    Abstract: An accurate position measuring system includes a communication satellite, a position measuring satellite, a position reference station, a network management station and a position measuring device. The communication satellite performs data communication. The position measuring satellite transmits position measurement data necessary for a position measurement calculation. The position reference station receives the position measurement data from the position measuring satellite and calculates positional error information. The calculated positional error information is transmitted to a network management station. The network management station collects the positional error information transmitted from the position reference station and transmits the collected positional error information to the communication satellite. The position measuring device receives the position measurement data from the position measuring satellite and calculates its current position.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: April 1, 1997
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masami Akiyoshi, Yuji Mitsunaga