Patents by Inventor Kimihide Kawamura

Kimihide Kawamura 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).

  • Prints and production method thereof
    Patent number: 4869532
    Abstract: A print is produced by printing or coating an infrared reflective coloring agent and another printing ink containing an infrared absorptive coloring agent in combination on a base material. The print therefore contains visually-recognizable information along with other information which is recognizable by infrared rays.
    Type: Grant
    Filed: September 29, 1987
    Date of Patent: September 26, 1989
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Yoshio Abe, Shojiro Horiguchi, Shozo Ohira, Michiei Nakamura, Masaru Hasegawa, Kimihide Kawamura, Kazuo Kanou, Katsuhiko Kitabayashi, Yoshiyuki Zama, Shiro Yamamiya
  • Azo-pigment containing hydroxy naphthoic acid amide and an iminooxoisoindolenine components
    Patent number: 4638052
    Abstract: An azo-pigment represented by the general formula: ##STR1## where R.sub.1 is a hydrogen atom, a C.sub.1 -C.sub.4 alkyl group, an unsubstituted phenyl group or a substituted phenyl group, R.sub.2 is a residue of a phenylenediamine, and R.sub.3 is a hydrogen atom, a methyl group, a methoxy group or a halogen atom. The azo-pigment of the present invention is useful in applications where azo-pigments are used.
    Type: Grant
    Filed: December 27, 1984
    Date of Patent: January 20, 1987
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Kimihide Kawamura, Shojiro Horiguchi, Hisao Okamoto
  • Azo pigments
    Patent number: 4221709
    Abstract: Azo pigments having the formula ##STR1## wherein X represents hydrogen or halogen atom; n represents an integer of 1 to 4; R.sub.1 represents a substituted or unsubstituted aromatic group; R.sub.2 represents a moiety of a coupling component which has one coupling site and R.sub.3 represents a moiety of a coupling component which has two coupling sites.The azo pigments can be produced by coupling a coupling component with a diazonium compound of an aromatic amine having the formula ##STR2## wherein X, n and R.sub.1 are defined above.
    Type: Grant
    Filed: January 8, 1979
    Date of Patent: September 9, 1980
    Assignee: Dainichiseika Color & Chemicals Mfg. Co., Ltd.
    Inventors: Kimihide Kawamura, Shojiro Horiguchi