Patents Assigned to Dainichiseika Color & Chem. Mfg. Co., Ltd.
  • Publication number: 20060009557
    Abstract: A colorant composition contains 0.01 to 99.97 wt. % of a polypropylene resin, 0.01 to 60 wt. % of a pigment, 0.01 to 60 wt. % of an elastomer component, and 0.01 to 40 wt. % of a dispersant. The colorant composition can be produced by kneading them together.
    Type: Application
    Filed: April 27, 2005
    Publication date: January 12, 2006
    Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.
    Inventors: Ken Nagao, Junichi Ito
  • Publication number: 20050242032
    Abstract: A desalting method for raw water with at least a water-soluble salt contained therein comprises the following first and second steps: (1) removing water from said raw water to concentrate said raw water; and (2) removing at least a part of said water-soluble salt from the resulting concentrated rawwater. This method can conduct the desalting of raw water, which contains at least a water-soluble salt, industrially and economically.
    Type: Application
    Filed: February 12, 2004
    Publication date: November 3, 2005
    Applicant: DAINICHISEIKA COLOR & CHEM. MFG. CO. LTD.
    Inventors: Yoshifumi Sugito, Minoru Takizawa, Yasuyuki Isono, Mikio Saji, Masayuki Fukasawa, Shinzo Kanao, Keisuke Umeda, Michiei Nakamura
  • Publication number: 20050193906
    Abstract: Color filters can each be fabricated by printing a pixel pattern for the color filter on a flexible plastic film by a central impression cylinder press. The pixel pattern is formed of pixels of three primary colors consisting of red, green and blue or pixels of three primary colors consisting of yellow, magenta and cyan. Also disclosed are inks, color filters, and image displays using the color filters.
    Type: Application
    Filed: January 19, 2005
    Publication date: September 8, 2005
    Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.
    Inventors: Michiei Nakamura, Shigeru Sakamoto, Toshio Yamaguchi, Mamoru Tsukano, Toshiyasu Fujita, Akio Yoshida
  • Publication number: 20030134938
    Abstract: A process produces a sulfonated solid particle by burning sulfur to yield gaseous sulfur dioxide, subjecting the gaseous sulfur dioxide to catalytic oxidation to yield gaseous sulfur trioxide, and sulfonating a dry powdery or granular solid particle with the gaseous sulfur trioxide in a gas phase-solid phase reaction.
    Type: Application
    Filed: September 16, 2002
    Publication date: July 17, 2003
    Applicant: Dainichiseika Color & Chem. Mfg Co., Ltd.
    Inventors: Michiei Nakamura, Yoshiyuki Zama, Hisao Okamoto, Atsushi Nogami, Naoyuki Sakai, Hideyuki Koiso
  • Publication number: 20030084820
    Abstract: A finely divided pigment is formed of an aggregate of primary particles. A number of primary particles of not greater than 0.1 &mgr;m in particle size is at least 95% of an entire number of the primary particles, and a number of primary particles of greater than 0.1 &mgr;m in particle size is at most 5% of the entire number of the primary particles. The finely divided pigment can be produced by grinding a parent pigment (pre-division pigment) together with a water-soluble inorganic salt and a water-soluble organic solvent in a grinding machine at a temperature of from 30 to 90° C. for 2 to 6 hours under a load, and then removing the water-soluble inorganic salt and the water-soluble organic solvent. A coloring composition comprises a dispersing medium and the finely divided pigment dispersed in the dispersing medium.
    Type: Application
    Filed: June 27, 2002
    Publication date: May 8, 2003
    Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.
    Inventors: Hisao Okamoto, Yutaka Nakagawa, Yoshiyuki Zama, Koji Tsuchiya, Shotoku Takami, Yoshio Abe, Michiei Nakamura
  • Publication number: 20030004233
    Abstract: A resin composition comprises a matrix resin and short cellulosic fibers dyed with at least one threne dye. A molded product, which has a nonwoven-fabric-like external appearance at a surface thereof, is obtained by molding a molding resin composition which comprises one of the resin compositions and an uncolored resin.
    Type: Application
    Filed: February 8, 2002
    Publication date: January 2, 2003
    Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.
    Inventors: Isamu Yamaguchi, Keiji Tashiro, Toshihiro Yamada, Junseki Kanehara
  • Publication number: 20020128356
    Abstract: Colored fine particulate resins can each be produced by bringing a colored resin, which comprises a thermally fusible resin and a colorant evenly distributed in the thermally fusible resin, into a molten state; forming the colored resin, which is in the molten state, into droplet-shaped fine particles in a non-dissolving medium which does not dissolve the colored resin; and then cooling and solidifying the droplet-shaped fine particles. The colored fine particulate resins are useful in image recording materials, printing materials and paints. Articles can be colored with the image recording materials, printing materials or paints.
    Type: Application
    Filed: January 3, 2002
    Publication date: September 12, 2002
    Applicant: Dainichiseika Color & Chem. Mfg. Co.,Ltd.
    Inventors: Michiei Nakamura, Shigeru Takarada, Hiroyuki Shimanaka, Kotaro Ohshima, Shinya Tuchida
  • Publication number: 20020121228
    Abstract: Near-infrared transmitting black azo pigments are represented by the following formula (1) and have a crystalline form selected from the group consisting of a thin, long crystalline form and a leaf-shaped crystalline form.
    Type: Application
    Filed: December 26, 2001
    Publication date: September 5, 2002
    Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.
    Inventors: Yoshiyuki Zama, Hisao Okamoto, Hiromitsu Yanagimoto, Shirou Yamamiya, Yoshio Abe, Michiei Nakamura
  • Publication number: 20010034413
    Abstract: Fluorine-containing diols represented by the following formula (I) are provided: 1
    Type: Application
    Filed: March 6, 2001
    Publication date: October 25, 2001
    Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.
    Inventors: Kazuyuki Hanada, Kazuya Kimura