Patents by Inventor Takaaki Sarai

Takaaki Sarai 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).

  • Solid state imager with reduced smear
    Patent number: 5929470
    Abstract: A CCD solid state imaging device can reduce a smear component. This CCD solid state imaging device comprises a plurality of photosensor sections (10) arranged in a matrix fashion, a vertical transfer register (5) having a transfer electrode (16) disposed at every column of the photosensor sections, a shunt line layer (33) connected to the transfer electrode (16) on the vertical transfer register (5), and a photo-shield layer (38) formed so as to surround the photosensor section 10 through an interlayer insulating layer (37) which covers the shunt layer (33), in which the interlayer insulating layer (37) is formed under an overhang portion (38a) of the photo-shield layer (38) to the photosensor section (10).
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: July 27, 1999
    Assignee: Sony Corporation
    Inventors: Kouichi Harada, Junichi Furukawa, Kazushi Wada, Takaaki Sarai
  • Method of making a solid state imager with reduced smear
    Patent number: 5763292
    Abstract: A CCD solid state imaging device can reduce a smear component. This CCD solid state imaging device comprises a plurality of photosensor sections (10) arranged in a matrix fashion, a vertical transfer register (5) having a transfer electrode (16) disposed at every column of the photosensor sections, a shunt line layer (33) connected to the transfer electrode (16) on the vertical transfer register (5), and a photo-shield layer (38) formed so as to surround the photosensor section 10 through an interlayer insulating layer (37) which covers the shunt layer (33), in which the interlayer insulating layer (37) is formed under an overhang portion (38a) of the photo-shield layer (38) to the photosensor section (10).
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: June 9, 1998
    Assignee: Sony Corporation
    Inventors: Kouichi Harada, Junichi Furukawa, Kazushi Wada, Takaaki Sarai
  • Solid state imager with reduced smear and method of making the same
    Patent number: 5614741
    Abstract: A CCD solid state imaging device can reduce a smear component. This CCD solid state imaging device comprises a plurality of photosensor sections (10) arranged in a matrix fashion, a vertical transfer register (5) having a transfer electrode (16) disposed at every column of the photosensor sections, a shunt line layer (33) connected to the transfer electrode (16) on the vertical transfer register (5), and a photo-shield layer (38) formed so as to surround the photosensor section 10 through an interlayer insulating layer (37) which covers the shunt layer (33), in which the interlayer insulating layer (37) is not formed under an overhang portion (38a) of the photo-shield layer (38) to the photosensor section (10).
    Type: Grant
    Filed: May 17, 1994
    Date of Patent: March 25, 1997
    Assignee: Sony Corporation
    Inventors: Kouichi Harada, Junichi Furukawa, Kazushi Wada, Takaaki Sarai