Patents by Inventor Nobuo Osaki

Nobuo Osaki 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).

  • Method of making thin-film chip resistor
    Patent number: 7326624
    Abstract: A method of making a thin-film chip resistor includes: a step of making a material plate A formed with lengthwise breaking grooves A1 and crosswise breaking grooves A2 along which the plate is to be divided into individual chip substrates 1 each to become a chip resistor; and a step of forming a film of resistive element material B by a thin-film process such as spattering, on a surface of the material plate A. The step of thin-film process, in which the resistive element material B is formed, is performed with a masking sheet E placed on the surface of the material plate A, covering only regions including the lengthwise breaking grooves A1 and the crosswise breaking grooves A2.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: February 5, 2008
    Assignee: Rohm Co., Ltd.
    Inventors: Nobuo Osaki, Masanori Tanimura
  • Method of making thin-film chip resistor
    Publication number: 20050204547
    Abstract: A method of making a thin-film chip resistor includes: a step of making a material plate A formed with lengthwise breaking grooves A1 and crosswise breaking grooves A2 along which the plate is to be divided into individual chip substrates 1 each to become a chip resistor; and a step of forming a film of resistive element material B by a thin-film process such as spattering, on a surface of the material plate A. The step of thin-film process, in which the resistive element material B is formed, is performed with a masking sheet E placed on the surface of the material plate A, covering only regions including the lengthwise breaking grooves A1 and the crosswise breaking grooves A2.
    Type: Application
    Filed: February 9, 2005
    Publication date: September 22, 2005
    Applicant: ROHM CO., LTD.
    Inventors: Nobuo Osaki, Masanori Tanimura