Patents by Inventor Nobuaki Akasawa

Nobuaki Akasawa 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).

  • Information processing system using portable terminal unit and data communication adapter therefor
    Patent number: 6163268
    Abstract: In an information processing system having a portable terminal unit, such as a hand-held computer, driven by a rechargeable battery and a data communication adaptor for enabling communication between the portable terminal unit and a host computer of the system, the terminal unit and the data communication adaptor are designed to minimize the size thereof in the following five ways. First, a memory card holding mechanism for connecting the memory card of the portable terminal unit is provided between a swinging back lid and a recess of the back casing. Second, a normal interface and a high-speed interface are both provided in the portable terminal unit and the the data communication adaptor respectively. Third, an auxiliary connector for an optional device to extend a function of the portable terminal Unit is provided in the opening of the casing of the portable terminal unit movable in three dimensions mounted on a printed circuit board.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: December 19, 2000
    Assignee: Fujitsu Limited
    Inventors: Takao Obata, Mitsuaki Kumagai, Akihiko Iura, Akio Murata, Shinji Yamamoto, Makoto Sato, Akira Okawado, Shinichiro Tsurumaru, Maki Miyata, Toshiyuki Kobayashi, Nobuaki Akasawa, Masahiko Okano, Takao Miyanaga
  • Information processing system using portable terminal unit and data communication adapter therefor
    Patent number: 5983290
    Abstract: In an information processing system having a portable terminal unit, such as a hand-held computer, driven by a rechargeable battery and a data communication adaptor for enabling communication between the portable terminal unit and a host computer of the system, the terminal unit and the data communication adaptor are designed to minimize the size thereof in the following five ways. First, a memory card holding mechanism for connecting the memory card of the portable terminal unit is provided between a swinging back lid and a recess of the back casing. Second, a normal interface and a high-speed interface are both provided in the portable terminal unit and the data communication adaptor respectively. Third, an auxiliary connector for an optional device to extend a function of the portable terminal unit is provided in the opening of the casing of the portable terminal unit movable in three dimensions mounted on a printed circuit board.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: November 9, 1999
    Assignee: Fujitsu Limited
    Inventors: Takao Obata, Mitsuaki Kumagai, Akihiko Iura, Akio Murata, Shinji Yamamoto, Makoto Sato, Akira Okawado, Shinichiro Tsurumaru, Maki Miyata, Toshiyuki Kobayashi, Nobuaki Akasawa, Masahiko Okano, Takao Miyanaga
  • Data communication adapter for selectively supplying power to a communication control circuit or a portable terminal unit
    Patent number: 5960208
    Abstract: In an information processing system having a portable terminal unit, such as a hand-held computer, driven by a rechargeable battery and a data communication adaptor for enabling communication between the portable terminal unit and a host computer of the system, the terminal unit and the data communication adaptor are designed to minimize the size thereof in the following five ways. First, a memory card holding mechanism for connecting the memory card of the portable terminal unit is provided between a swinging back lid and a recess of the back casing. Second, a normal interface and a high-speed interface are both provided in the portable terminal unit and the data communication adaptor respectively. Third, an auxiliary connector for an optional device to extend a function of the portable terminal unit is provided in the opening of the casing of the portable terminal unit movable in three dimensions mounted on a printed circuit board.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: September 28, 1999
    Assignee: Fujitsu Limited
    Inventors: Takao Obata, Mitsuaki Kumagai, Akihiko Iura, Akio Murata, Shinji Yamamoto, Makoto Sato, Akira Okawado, Shinichiro Tsurumaru, Maki Miyata, Toshiyuki Kobayashi, Nobuaki Akasawa, Masahiko Okano, Takao Miyanaga
  • Information processing system using portable terminal unit and data communication adapter having biased connector
    Patent number: 5854737
    Abstract: In an information processing system having a portable terminal unit, such as a hand-held computer, driven by a rechargeable battery and a data communication adaptor for enabling communication between the portable terminal unit and a host computer of the system, the terminal unit and the data communication adaptor are designed to minimize the size by having an auxiliary connector for an optional device extend a function of the portable terminal unit. This is provided in the opening of the casing of the portable terminal unit movable in three dimensions mounted on a printed circuit board.
    Type: Grant
    Filed: May 23, 1997
    Date of Patent: December 29, 1998
    Assignee: Fujitsu Limited
    Inventors: Takao Obata, Mitsuaki Kumagai, Akihiko Iura, Akio Murata, Shinji Yamamoto, Makoto Sato, Akira Okawado, Shinichiro Tsurumaru, Maki Miyata, Toshiyuki Kobayashi, Nobuaki Akasawa, Masahiko Okano, Takao Miyanaga
  • Information processing system using portable terminal unit and data communication adapter therefor
    Patent number: 5661634
    Abstract: In an information processing system having a portable terminal unit, such as a hand-held computer, driven by a rechargeable battery and a data communication adaptor for enabling communication between the portable terminal unit and a host computer of the system, the terminal unit and the data communication adaptor are designed to minimize the size thereof in the following five ways. First, a memory card holding mechanism for connecting the memory card of the portable terminal unit is provided between a swinging back lid and a recess of the back casing. Second, a normal interface and a high-speed interface are both provided in the portable terminal unit and the the data communication adaptor respectively. Third, an auxiliary connector for an optimal device to extend a function of the portable terminal unit is provided in the opening of the casing of the portable terminal unit movable in three dimensions mounted on a printed circuit board.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: August 26, 1997
    Assignee: Fujitsu Limited
    Inventors: Takao Obata, Mitsuaki Kumagai, Akihiko Iura, Akio Murata, Shinji Yamamoto, Makoto Sato, Akira Okawado, Shinichiro Tsurumaru, Maki Miyata, Toshiyuki Kobayashi, Nobuaki Akasawa, Masahiko Okano, Takao Miyanaga