Patents by Inventor Keiko Nakanishi

Keiko Nakanishi 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).

  • Recombinant coryneform bacterium for producing L-tryptophan
    Patent number: 5407824
    Abstract: L-tryptophan is produced by constructing a recombinant DNA composed of a vector DNA and DNA fragments bearing all of genetic information relating to the synthesis of DS, AS, PRT, PRAI, InGPS, TS and PGDH, introducing the recombinant DNA into a microorganism belonging to the genus Corynebacterium or Brevibacterium, culturing the microorganism in a medium, and recovering L-tryptophan accumulated in the culture.
    Type: Grant
    Filed: May 30, 1990
    Date of Patent: April 18, 1995
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Ryoichi Katsumata, Masato Ikeda, Keiko Nakanishi
  • Method of commonly using font information for outputting information in a system having a plurality of information processing devices
    Patent number: 5361332
    Abstract: An information transmitting method for an information processing device connected to other information processing devices, the information transmitting method including the steps of: a step of instructing font information for transmitting information; a step in which, if font information about the instructed font is not stored in the information processing device, a discrimination is made whether or not font information about the instructed font is stored in the other information processing devices connected; a step in which, if a discrimination is made as a result of the discrimination that there are information processing devices in which instructed font information is stored, one information processing device is selected from the information processing devices; a step of loading instructed font information from selected information processing device into the device; and a step of transmitting information in accordance with loaded font information.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: November 1, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Masayuki Yoshida, Keiko Nakanishi
  • Water purifying apparatus having moss-preventing filter and monitored air injection
    Patent number: 5232582
    Abstract: A water purifying apparatus has feeding device for feeding water under pressure; a bacteria culturing tank; and air supply device for feeding air to the bacteria culturing tank by inducing air by utilizing fluid energy of circulating water; and an air flow detector provided on an air suction duct of the air supply means. A filter provided upstream of the feeding means for feeding water under pressure has the capability of preventing moss from growing in a water tank and sterilizing water. An ultraviolet lamp for sterilizing the water in a water tank is provided in a circulating duct. A carrier for fixing bacteria which grows aerobic and anaerobic bacteria is composed of a basic mineral material.
    Type: Grant
    Filed: February 19, 1992
    Date of Patent: August 3, 1993
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Yutaka Takahashi, Ikuo Kobayashi, Masao Noguchi, Nobuyuki Hirai, Keiko Nakanishi, Masanobu Hattori