Patents by Inventor Tutomu Tamura

Tutomu Tamura 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: 6835787
    Abstract: There is disclosed an inorganic reinforced polyamide resin compositions obtainable by melt kneading of (A) a crystalline polyamide rein, (B) a semi-aromatic amorphous polyamide resin, and (C) an inorganic reinforcing material, wherein the relative viscosity of 96% sulfuric acid solution of the composition is 2.1 or lower and wherein the crystallization temperature (TC2) of the composition as measured with a temperature drop by differential scanning calorimetry (DSC) is 180° C. or lower. The inorganic reinforced polyamide resin composition can provide shaped articles having satisfactory strength and rigidity without deteriorating their appearances and further having excellent coating properties and weathering resistance, and requires a mold temperature of 100° C. or lower in the preparation of shaped articles.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: December 28, 2004
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Tutomu Tamura, Hideki Eguchi, Tomohide Nakagawa, Toshio Hiramatsu, Manabu Takeuchi
  • Patent number: 6835771
    Abstract: There is disclosed an inorganic reinforced polyamide resin compositions obtainable by melt kneading of (A) a crystalline polyamide rein, (B) a semi-aromatic amorphous polyamide resin, and (C) an inorganic reinforcing material, wherein the relative viscosity of 96% sulfuric acid solution of the composition is 2.1 or lower and wherein the crystallization temperature (TC2) of the composition as measured with a temperature drop by differential scanning calorimetry (DSC) is 180° C. or lower. The inorganic reinforced polyamide resin composition can provide shaped articles having satisfactory strength and rigidity without deteriorating their appearances further having excellent coating properties and weathering resistance, and requires a mold temperature of 100° C. or lower in the preparation of shaped articles.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: December 28, 2004
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Tutomu Tamura, Hideki Eguchi, Tomohide Nakagawa, Toshio Hiramatsu, Manabu Takeuchi
  • Publication number: 20030125440
    Abstract: There is disclosed an inorganic reinforced polyamide resin compositions obtainable by melt kneading of (A) a crystalline polyamide rein, (B) a semi-aromatic amorphous polyamide resin, and (C) an inorganic reinforcing material, wherein the relative viscosity of 96% sulfuric acid solution of the composition is 2.1 or lower and wherein the crystallization temperature (TC2) of the composition as measured with a temperature drop by differential scanning calorimetry (DSC) is 180° C. or lower. The inorganic reinforced polyamide resin composition can provide shaped articles having satisfactory strength and rigidity without deteriorating their appearances further having excellent coating properties and weathering resistance, and requires a mold temperature of 100° C. or lower in the preparation of shaped articles.
    Type: Application
    Filed: January 22, 2003
    Publication date: July 3, 2003
    Inventors: Tutomu Tamura, Hideki Eguchi, Tomohide Nakagawa, Toshio Hiramatsu, Manabu Takeuchi
  • Publication number: 20030125481
    Abstract: There is disclosed an inorganic reinforced polyamide resin compositions obtainable by melt kneading of (A) a crystalline polyamide rein, (B) a semi-aromatic amorphous polyamide resin, and (C) an inorganic reinforcing material, wherein the relative viscosity of 96% sulfuric acid solution of the composition is 2.1 or lower and wherein the crystallization temperature (TC2) of the composition as measured with a temperature drop by differential scanning calorimetry (DSC) is 180° C. or lower. The inorganic reinforced polyamide resin composition can provide shaped articles having satisfactory strength and rigidity without deteriorating their appearances and further having excellent coating properties and weathering resistance, and requires a mold temperature of 100° C. or lower in the preparation of shaped articles.
    Type: Application
    Filed: January 22, 2003
    Publication date: July 3, 2003
    Inventors: Tutomu Tamura, Hideki Eguchi, Tomohide Nakagawa, Toshio Hiramatsu, Manabu Takeuchi
  • Patent number: 6534583
    Abstract: There is disclosed an inorganic reinforced polyamide resin compositions obtainable by melt kneading of (A) a crystalline polyamide rein, (B) a semi-aromatic amorphous polyamide resin, and (C) an inorganic reinforcing material, wherein the relative viscosity of 96% sulfuric acid solution of the composition is 2.1 or lower and wherein the crystallization temperature (TC2) of the composition as measured with a temperature drop by differential scanning calorimetry (DSC) is 180° C. or lower. The inorganic reinforced polyamide resin composition can provide shaped articles having satisfactory strength and rigidity without deteriorating their appearances and further having excellent coating properties and weathering resistance, and requires a mold temperature of 100° C. or lower in the preparation of shaped articles.
    Type: Grant
    Filed: September 28, 2000
    Date of Patent: March 18, 2003
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Tutomu Tamura, Hideki Eguchi, Tomohide Nakagawa, Toshio Hiramatsu, Manabu Takeuchi