Patents by Inventor Horishi Ide

Horishi Ide 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).

  • Optical disk apparatus and recording and reading method for an optical disk using the same
    Patent number: 5703855
    Abstract: A super high density optical disk apparatus is obtained by using an exchangeable recording medium having a recording capacity of at least 1.5 Gb/in.sup.2 in an optical recording and reading apparatus for recording or reading at least using a laser beam or by using one of an element which can record on a recording medium only once and another element which can record at least two times repeatedly as recording elements to be used.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: December 30, 1997
    Assignee: Hitachi, Ltd.
    Inventors: Fumiyoshi Kirino, Tsuyoshi Toda, Horishi Ide, Hisataka Sugiyama, Atsushi Saito, Hiroyuki Tsuchinaga, Takeshi Maeda, Fumio Kugiya, Toshimitsu Kaku, Seiichi Mita, Kazuo Shigematsu, Yasuhide Ouchi