Patents by Inventor Eiji Sadanaga

Eiji Sadanaga 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).

  • Potassium hexatitinate whiskers having a tunnel structure
    Patent number: 5563199
    Abstract: A potassium hexatitanate whisker having a tunnel structure containing aluminum and niobium impurities in such amounts that Al.sub.2 O.sub.3 /Nb.sub.2 O.sub.5 molar ratio is 0.6 or higher and composite materials using the same. Also disclosed are processes for producing composite materials using the potassium hexatitanate whiskers having a tunnel structure with a light alloy or a thermoplastic resin.
    Type: Grant
    Filed: May 9, 1995
    Date of Patent: October 8, 1996
    Assignee: Titan Hogyo Kabushiki Kaisha
    Inventors: Hidefumi Harada, Yasuo Inoue, Eiji Sadanaga
  • Process for producing a composite using potassium hexatitanate whiskers having a tunnel structure
    Patent number: 5501264
    Abstract: A potassium hexatitanate whisker having a tunnel structure containing aluminum and niobium impurities in such amounts that Al.sub.2 O.sub.3 /Nb.sub.2 O.sub.3 molar ratio is 0.6 or higher and composite materials using the same. Also disclosed are processes for producing composite materials using the potassium hexatitanate whiskers having a tunnel structure with a light alloy or a thermoplastic resin.
    Type: Grant
    Filed: August 12, 1994
    Date of Patent: March 26, 1996
    Assignee: Titan Kogyo Kabushiki Kaisha
    Inventors: Hidefumi Harada, Yasuo Inoue, Eiji Sadanaga
  • Potassium hexatitanate fibers for use as reinforcement
    Patent number: 5407754
    Abstract: Reinforcement potassium hexatitanate fiber having an average fiber length of 8-30 .mu.m, an average fiber diameter of 0.2-0.7 .mu.m and a specific surface area of 2-4 m.sup.2 /g and a composite materials comprising the whiskers and a light alloy or thermoplastic resin. Also disclosed a process for producing the whiskers.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: April 18, 1995
    Assignee: Titan Kogyo Kabushiki Kaisha
    Inventors: Hidefumi Harada, Yasuo Inoue, Eiji Sadanaga
  • Potassium hexatitanate whiskers having a tunnel structure
    Patent number: 5366816
    Abstract: A potassium hexatitanate whisker having a tunnel structure containing aluminum and niobium impurities in such amounts that Al.sub.2 O.sub.3 /Nb.sub.2 O.sub.5 molar ratio is 0.6 or higher and composite materials using the same. Also disclosed are processes for producing composite materials using the potassium hexatitanate whiskers having a tunnel structure with a light alloy or a thermoplastic resin.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: November 22, 1994
    Assignee: Titan Kogyo Kabushiki Kaisha
    Inventors: Hidefumi Harada, Yasuo Inoue, Eiji Sadanaga