Patents Assigned to Dainichiseika Color & Chem. Mfg. Co., Ltd.
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Publication number: 20060009557Abstract: 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: ApplicationFiled: April 27, 2005Publication date: January 12, 2006Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.Inventors: Ken Nagao, Junichi Ito
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Publication number: 20050242032Abstract: 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: ApplicationFiled: February 12, 2004Publication date: November 3, 2005Applicant: DAINICHISEIKA COLOR & CHEM. MFG. CO. LTD.Inventors: Yoshifumi Sugito, Minoru Takizawa, Yasuyuki Isono, Mikio Saji, Masayuki Fukasawa, Shinzo Kanao, Keisuke Umeda, Michiei Nakamura
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Publication number: 20050193906Abstract: 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: ApplicationFiled: January 19, 2005Publication date: September 8, 2005Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.Inventors: Michiei Nakamura, Shigeru Sakamoto, Toshio Yamaguchi, Mamoru Tsukano, Toshiyasu Fujita, Akio Yoshida
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Publication number: 20030134938Abstract: 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: ApplicationFiled: September 16, 2002Publication date: July 17, 2003Applicant: Dainichiseika Color & Chem. Mfg Co., Ltd.Inventors: Michiei Nakamura, Yoshiyuki Zama, Hisao Okamoto, Atsushi Nogami, Naoyuki Sakai, Hideyuki Koiso
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Publication number: 20030084820Abstract: 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: ApplicationFiled: June 27, 2002Publication date: May 8, 2003Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.Inventors: Hisao Okamoto, Yutaka Nakagawa, Yoshiyuki Zama, Koji Tsuchiya, Shotoku Takami, Yoshio Abe, Michiei Nakamura
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Publication number: 20030004233Abstract: 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: ApplicationFiled: February 8, 2002Publication date: January 2, 2003Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.Inventors: Isamu Yamaguchi, Keiji Tashiro, Toshihiro Yamada, Junseki Kanehara
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Publication number: 20020128356Abstract: 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: ApplicationFiled: January 3, 2002Publication date: September 12, 2002Applicant: Dainichiseika Color & Chem. Mfg. Co.,Ltd.Inventors: Michiei Nakamura, Shigeru Takarada, Hiroyuki Shimanaka, Kotaro Ohshima, Shinya Tuchida
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Publication number: 20020121228Abstract: 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: ApplicationFiled: December 26, 2001Publication date: September 5, 2002Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.Inventors: Yoshiyuki Zama, Hisao Okamoto, Hiromitsu Yanagimoto, Shirou Yamamiya, Yoshio Abe, Michiei Nakamura
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Publication number: 20010034413Abstract: Fluorine-containing diols represented by the following formula (I) are provided: 1Type: ApplicationFiled: March 6, 2001Publication date: October 25, 2001Applicant: Dainichiseika Color & Chem. Mfg. Co., Ltd.Inventors: Kazuyuki Hanada, Kazuya Kimura