Patents by Inventor Atsushi Ohtsuka

Atsushi Ohtsuka 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).

  • Air conditioner
    Patent number: 6708505
    Abstract: An air conditioner and a control software updating system capable of easily updating and adding control software desired by a customer. An internet system including telephones and/or personal computers is provided between a service center and customers. Each of air conditioners is provided with a connection terminal for connection to a communication terminal. Software for controlling operation of the air conditioner is updated by using the internet or a memory card after explaining a control software to the customer and confirming the customer's desire.
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: March 23, 2004
    Assignee: Hitachi, Ltd.
    Inventors: Hiroo Nakamura, Hidenori Yokoyama, Masayuki Nonaka, Atsushi Ohtsuka, Tsutomu Kurokawa
  • Air conditioner
    Publication number: 20030033392
    Abstract: An air conditioner and a control software updating system capable of easily updating and adding control software desired by a customer. An internet system including telephones and/or personal computers is provided between a service center and customers. Each of air conditioners is provided with a connection terminal for connection to a communication terminal. Software for controlling operation of the air conditioner is updated by using the internet or a memory card after explaining a control software to the customer and confirming the customer's desire.
    Type: Application
    Filed: July 18, 2002
    Publication date: February 13, 2003
    Inventors: Hiroo Nakamura, Hidenori Yokoyama, Masayuki Nonaka, Atsushi Ohtsuka, Tsutomu Kurokawa
  • Lithium rechargeable battery and method of making the same
    Patent number: 5258245
    Abstract: The subject invention is a lithium battery comprising a positive electrode mainly of vanadium pentoxide, a negative electrode mainly of lithium doped niobium pentoxide, and, an electrolyte mainly of an anhydrous solvent with dissolved lithium salt. By using for the said niobium pentoxide a mixture of T type and H type crystals heat treated at 850.degree. to 1300.degree. C., preferably 850.degree. to 1100.degree. C., a lithium battery having superior charging cycle characteristics and also having high discharge voltage is obtained.
    Type: Grant
    Filed: June 26, 1992
    Date of Patent: November 2, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Kenichi Takata, Nobuharu Koshiba, Atsushi Ohtsuka, Tatsuo Mori