Patents by Inventor Hiroyoshi Terada

Hiroyoshi Terada 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).

  • Composite oxide black pigment and method for producing same
    Patent number: 8968460
    Abstract: To provide a Cu—Mn—Fe-based complex inorganic oxide black pigment having a more vivid bluish hue than a Cu—Mn—Fe-based complex inorganic oxide black pigment obtained by a conventional wet method. A Cu—Mn—Fe-based complex inorganic oxide black pigment having a more vivid bluish hue is disclosed. The complex inorganic oxide black pigment has a spinel structure composed of oxides of copper, manganese and iron as main constituent metals, the molar ratio of copper/manganese/iron is in a range of 3 to 8/5 to 10/1, at least one divalent metal element other than the main constituent metals has been introduced, and the molar ratio of (copper+the divalent metal element)/(manganese+iron) is in a range of 1 to 1.6/2. A production process of the black pigment is also disclosed.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: March 3, 2015
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Kenichi Yamane, Toru Kawakami, Akira Nishio, Hiroyoshi Terada
  • COMPOSITE OXIDE BLACK PIGMENT AND METHOD FOR PRODUCING SAME
    Publication number: 20140318416
    Abstract: To provide a Cu—Mn—Fe-based complex inorganic oxide black pigment having a more vivid bluish hue than a Cu—Mn—Fe-based complex inorganic oxide black pigment obtained by a conventional wet method. A Cu—Mn—Fe-based complex inorganic oxide black pigment having a more vivid bluish hue is disclosed. The complex inorganic oxide black pigment has a spinel structure composed of oxides of copper, manganese and iron as main constituent metals, the molar ratio of copper/manganese/iron is in a range of 3 to 8/5 to 10/1, at least one divalent metal element other than the main constituent metals has been introduced, and the molar ratio of (copper+the divalent metal element)/(manganese+iron) is in a range of 1 to 1.6/2. A production process of the black pigment is also disclosed.
    Type: Application
    Filed: December 18, 2012
    Publication date: October 30, 2014
    Inventors: Kenichi Yamane, Toru Kawakami, Akira Nishio, Hiroyoshi Terada
  • Composition for black matrix, fabrication process of black matrix and article provided with black matrix
    Patent number: 5814434
    Abstract: A composition for a black matrix is disclosed. The composition is composed of a black pigment and a binder for the pigment. The black pigment is a compound-oxide black pigment, which comprises at least two metal oxides and has a spinel or inverse-spinel crystalline structure. Also discloses are a process for the formation of a black matrix from the composition and an article provided with a black matrix so formed.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: September 29, 1998
    Assignees: Dainichiseika Color & Chemicals Mfg. Co., Ltd., Ukima Colour & Chemicals Mfg. Co., Ltd
    Inventors: Michiei Nakamura, Keiji Nakajima, Shigeru Sakamoto, Takamitsu Shinoda, Mitsuo Yamazaki, Kanako Sato, Motohisa Maruyama, Hiroyoshi Terada, Akira Nishio, Masanori Takakamo, Toshiaki Anzai