Patents by Inventor Tomomi Suetake

Tomomi Suetake 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).

  • Liquid crystal display apparatus which prevents bubbles with a spacer density of 201 to 800 mm.sup.2
    Patent number: 5566013
    Abstract: In a liquid crystal display device (LCD), a spacer is interposed between an upper and a lower substrate implemented by flexible films. Liquid crystals are confined in the gap between the two substrates. The spacer is scattered in the crystals at a density higher than 201/mm.sup.2 and lower than 800/mm.sup.2. The device allows a minimum of bubbles to be produced in the crystals without resorting to gas barrier coatings or similar conventional implementation against bubbles. When the spacer is sprayed, it is uniformly distributed to set up a uniform cell gap. The device is, therefore, free from display speckles and other defects and inexpensive.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: October 15, 1996
    Assignee: Ricoh Company, Ltd.
    Inventors: Takumi Suzuki, Reiko Kameyama, Sumio Kamoi, Hisashi Kikuchi, Satosi Komori, Tomomi Suetake, Yumi Matsuki
  • Method of producing a liquid crystal display with a spacer
    Patent number: 5513026
    Abstract: In a liquid crystal display device (LCD), a spacer is interposed between an upper and a lower substrate implemented by flexible films. Liquid crystals are confined in the gap between the two substrates. The spacer is scattered in the crystals at a density higher than 201/mm.sup.2 and lower than 800/mm.sup.2. The device allows a minimum of bubbles to be produced in the crystals without resorting to gas barrier coatings or similar conventional implementation against bubbles. When the spacer is sprayed, it is uniformly distributed to set up a uniform cell gap. The device is, therefore, free from display speckles and other defects and inexpensive.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: April 30, 1996
    Assignee: Ricoh Company, Ltd.
    Inventors: Takumi Suzuki, Reiko Kameyama, Sumio Kamoi, Hisashi Kikuchi, Satosi Komori, Tomomi Suetake, Yumi Matsuki