Patents by Inventor Kanehito Honma

Kanehito Honma 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: 5336301
    Abstract: A conductive copper paste contains copper powder and a glass frit of a zinc borosilicate system as a solid component dispersed in an organic vehicle. The content of said glass frit in the solid component falls in a range of 0.5 to 8 percent by weight. The paste is applied to ceramic green sheets and fired simultaneously with the ceramic green sheets to provide copper coatings on the ceramic sheets.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: August 9, 1994
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiroji Tani, Kanehito Honma
  • Patent number: 5332596
    Abstract: Anti-oxidizing treatment of copper power is carried out by immersing copper powder in a solution containing boric acid, separating the resultant copper powder from the solution, and heating the copper powder covered with a thin layer of the solution at a temperature of 50.degree. to 260.degree. C.
    Type: Grant
    Filed: January 19, 1993
    Date of Patent: July 26, 1994
    Assignee: Murata Mfg. Co., Ltd.
    Inventors: Hiroji Tani, Kanehito Honma
  • Patent number: 5107394
    Abstract: An external electrode is formed on an outer surface of a ceramic molded product. The external electrode consists of an inner layer and an outer layer. The inner layer is composed of conductive material. The outer layer is composed of conductive material and glass material. In a process for producing the ceramic molded product, first, by molding a ceramic material a molded product is formed. On outer surfaces of the molded product, a conductive paste containing copper or the like is coated. Furthermore, on the conductive paste, a conductive paste containing a glass frit is coated. By baking the molded product onto which these two kinds of conductive paste are coated, ceramic electronic parts having an external electrode of 2-layer structure is obtained.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: April 21, 1992
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yasuyuki Naito, Shinichi Okubo, Hiroji Tani, Kanehito Honma, Tadashi Morimoto, Harufumi Mandai
  • Patent number: 4877554
    Abstract: Resistance paste comprises conductive powder suspended in a binder resin, and is characterized in that the conductive powder comprises graphite powder of which particles are coated or covered with at least one higher fatty acid having at least 12 carbon atoms. The paste may contain carbon black as a part of the conductive powder. The paste may further contain a filler, preferably, fine powder of talc having a mean particle diameter of not more than 5 .mu.m.
    Type: Grant
    Filed: July 21, 1988
    Date of Patent: October 31, 1989
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kanehito Honma, Tsutomu Yokoi, Hiroji Tani