Patents by Inventor Yoshio Nakao

Yoshio Nakao 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: 4459034
    Abstract: A time display apparatus for producing an analog-type display using liquid crystal display elements, electrochomic display elements, or the like is described. The display of this apparatus is divided into two parts: a main display portion for indicating the hour and for indicating the number of minutes past the hour in units of 2.5 minutes, and an auxiliary display portion for indicating the number of minutes in units of 1 minute. The main display portion requires 48 display elements, and the auxiliary display portion requires 4 elements, compared to 120 elements required in conventional time displays. Through this reduction in the number of elements, a small-sized, low-priced display apparatus can be achieved.
    Type: Grant
    Filed: December 3, 1982
    Date of Patent: July 10, 1984
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Keiji Kawabata, Yoshio Nakao
  • Patent number: 4070244
    Abstract: Ubiquinone-10 is produced by culturing a microorganism belonging to the genus Sporidiobolus or Oosporidium and capable of producing ubiquinone-10, causing the microorganism to accumulate ubiquinone-10 and recovering ubiquinone-10.
    Type: Grant
    Filed: February 25, 1977
    Date of Patent: January 24, 1978
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Yoshio Nakao, Kazuaki Kitano, Isuke Imada, Hiroshi Morimoto
  • Patent number: 3979899
    Abstract: A digital display type electronic time keeper is disclosed which has a time standard signal generating source having a crystal oscillating circuit. Means are provided for frequency-dividing the time standard signal, for counting the signal fed from the means for frequency-dividing the time standard signal which is driven by at least one power source, and for decoding the counted data. A display device having a positive dielectric anisotropy twisted effect type nematic liquid crystal is driven by the decoded signal. A booster using two phase signals taken from a part of the frequency dividing means provides a power source for driving the counting means, the decoding means and the display device. A level adjuster matches the output of the frequency-dividing means and the input of the counting means and is disposed therebetween. Additional means are provided for correcting the display data of the display device.
    Type: Grant
    Filed: April 1, 1975
    Date of Patent: September 14, 1976
    Assignees: Mitsubishi Denki Kabushiki Kaisha, Citizen Watch Co., Ltd.
    Inventors: Masateru Yoshida, Yoshio Nakao
  • Patent number: 3979260
    Abstract: Deacetoxycephalosporin C can be produced with advantage by fermentation of a microorganism which belongs to the genus Streptomyces, Cephalosporium, Emericellopsis, Paecilomyces, Anixiopsis, Arachnomyces or Spriroidium and is capable of producing deacetoxycephalosporin C. Deacetoxycephalosporin C is a useful antibiotic as such or can be used as a starting material for the production of other various cephalosporin antibiotics.
    Type: Grant
    Filed: June 14, 1974
    Date of Patent: September 7, 1976
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Yoshio Nakao, Kazuaki Kitano, Kazuhiko Kintaka, Shigeru Suzuki, Kazuyoshi Katamoto, Kiyoshi Nara
  • Patent number: 3970522
    Abstract: D-Ribose is produced by cultivating a strain belonging to the genus Bacillus, which lacks sporulation ability or has high 2-deoxy-D-glucose-oxidizing activity or has both of these two properties and also lacks at least one of transketolase and D-ribulose phosphate 3-epimerase, to cause said strain to elaborate and accumulate a large amount of D-ribose. The thus accumulated D-ribose can be recovered in good yield.
    Type: Grant
    Filed: November 25, 1974
    Date of Patent: July 20, 1976
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Ken-ichi Sasajima, Muneharu Doi, Teruo Fukuhara, Akira Yokota, Yoshio Nakao, Masahiko Yoneda