Patents by Inventor Yasuhide Nakajima

Yasuhide Nakajima 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).

  • Vacuum drying apparatus and vacuum drying method
    Patent number: 7343695
    Abstract: A vacuum drying apparatus and a vacuum drying method are provided wherein it is possible to reduce the drying time of an object to be dried and the surface condition of the object to be dried after drying is extremely satisfactory. A vacuum pump is connected to an exhaust port of a vacuum chamber through a suction pipe, and a frequency converter is provided on the input side of an alternating current motor for driving the vacuum pump to form a vacuum drying apparatus. A substrate coated with coating liquid is placed in the vacuum chamber of the vacuum drying apparatus.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: March 18, 2008
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shunji Miyakawa, Yasuhide Nakajima, Soichi Matsuo
  • Vacuum drying apparatus and vacuum drying method
    Publication number: 20030019124
    Abstract: A vacuum drying apparatus and a vacuum drying method are provided wherein it is possible to reduce the drying time of an object to be dried and the surface condition of the object to be dried after drying is extremely satisfactory. A vacuum pump is connected to an exhaust port of a vacuum chamber through a suction pipe, and a frequency converter is provided on the input side of an alternating current motor for driving the vacuum pump to form a vacuum drying apparatus. A substrate coated with coating liquid is placed in the vacuum chamber of the vacuum drying apparatus.
    Type: Application
    Filed: September 16, 2002
    Publication date: January 30, 2003
    Inventors: Shunji Miyakawa, Yasuhide Nakajima, Soichi Matsuo
  • Vacuum drying apparatus and vacuum drying method
    Patent number: 6473995
    Abstract: A vacuum drying apparatus and a vacuum drying method are provided wherein it is possible to reduce the drying time of an object to be dried and the surface condition of the object to be dried after drying is extremely satisfactory. A vacuum pump is connected to an exhaust port of a vacuum chamber through a suction pipe, and a frequency converter is provided on the input side of an alternating current motor for driving the vacuum pump to form a vacuum drying apparatus. A substrate coated with coating liquid is placed in the vacuum chamber of the vacuum drying apparatus.
    Type: Grant
    Filed: February 23, 2001
    Date of Patent: November 5, 2002
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Shunji Miyakawa, Yasuhide Nakajima, Soichi Matsuo
  • Vacuum drying apparatus and vacuum drying method
    Publication number: 20010015019
    Abstract: A vacuum drying apparatus and a vacuum drying method are provided wherein it is possible to reduce the drying time of an object to be dried and the surface condition of the object to be dried after drying is extremely satisfactory. A vacuum pump is connected to an exhaust port of a vacuum chamber through a suction pipe, and a frequency converter is provided on the input side of an alternating current motor for driving the vacuum pump to form a vacuum drying apparatus. A substrate coated with coating liquid is placed in the vacuum chamber of the vacuum drying apparatus.
    Type: Application
    Filed: February 23, 2001
    Publication date: August 23, 2001
    Inventors: Shunji Miyakawa, Yasuhide Nakajima, Soichi Matsuo
  • Color filter
    Patent number: 5251071
    Abstract: The color filter according to the present invention contains black matrix formed by polyimide, which contains light shielding pigments such as carbon black, triiron tetraoxide, etc. instead of the black matrix used in the past, which is formed by metal thin film such as chromium on glass substrate. Epoxy type silane coupling agent is mixed with polyimide precursor composition, and this is coated on a glass substrate and then imidized. Thus, the color filter is provided with black matrix having high bonding strength with glass substrate.
    Type: Grant
    Filed: October 18, 1991
    Date of Patent: October 5, 1993
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hiroyuki Kusukawa, Yasuhide Nakajima