Patents by Inventor Kojiro Nagaoka

Kojiro Nagaoka 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).

  • Patent number: 10157957
    Abstract: The present disclosure relates to a solid-state imaging element in which the cost reduction of a curved imaging element can be achieved, a method for manufacturing the solid-state imaging element, and an electronic apparatus. A curvature base is formed so as to be curved in a concave shape at a center leaving a small edge. The curvature base is divided into five portions of an element disposition portion and four peripheral portions. This element disposition portion is formed in a porous state. A pore (air bubble) in the porous state is smaller than a pixel size. A porous material such as a ceramic-based material, a metal-based material, or a resin-based material can be used as the porous material, for example. The present disclosure can be applied to a CMOS solid-state imaging element to be used for an imaging device, for example.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: December 18, 2018
    Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
    Inventors: Yuichi Yamamoto, Kojiro Nagaoka
  • Publication number: 20160240582
    Abstract: The present disclosure relates to a solid-state imaging element in which the cost reduction of a curved imaging element can be achieved, a method for manufacturing the solid-state imaging element, and an electronic apparatus. A curvature base is formed so as to be curved in a concave shape at a center leaving a small edge. The curvature base is divided into five portions of an element disposition portion and four peripheral portions. This element disposition portion is formed in a porous state. A pore (air bubble) in the porous state is smaller than a pixel size. A porous material such as a ceramic-based material, a metal-based material, or a resin-based material can be used as the porous material, for example. The present disclosure can be applied to a CMOS solid-state imaging element to be used for an imaging device, for example.
    Type: Application
    Filed: September 16, 2014
    Publication date: August 18, 2016
    Applicant: Sony Corporation
    Inventors: Yuichi YAMAMOTO, Kojiro NAGAOKA
  • Patent number: 7977751
    Abstract: Disclosed herein is an insulated gate field effect transistor including: (A) a source/drain region and a channel formation region; (B) a gate electrode formed above the channel formation region; and (C) a gate insulating film; wherein the gate insulating film is composed of a gate insulating film main body portion formed between the gate electrode and the channel formation region, and a gate insulating film extension portion extending from the insulating film main body portion to a middle of a side surface portion of the gate electrode, and when a height of the gate electrode is HGate and a height of the gate insulating film extension portion is HIns with a surface of the channel formation region as a reference, a relationship of HIns<HGate is fulfilled.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: July 12, 2011
    Assignee: Sony Corporation
    Inventors: Kojiro Nagaoka, Yoshihiko Nagahama
  • Patent number: 7923762
    Abstract: Disclosed herein is a semiconductor device, including: an insulating film provided on a semiconductor substrate so as to have a trench pattern; a gate insulating film provided so as to cover an inner wall of the trench pattern; and a gate electrode formed so as to be filled in the trench pattern through the gate insulating film and so as to protrude more widely than the trench pattern on both sides of the trench pattern on the insulating film.
    Type: Grant
    Filed: February 2, 2009
    Date of Patent: April 12, 2011
    Assignee: Sony Corporation
    Inventor: Kojiro Nagaoka
  • Publication number: 20090224338
    Abstract: Disclosed herein is a semiconductor device, including: an insulating film provided on a semiconductor substrate so as to have a trench pattern; a gate insulating film provided so as to cover an inner wall of the trench pattern; and a gate electrode formed so as to be filled in the trench pattern through the gate insulating film and so as to protrude more widely than the trench pattern on both sides of the trench pattern on the insulating film.
    Type: Application
    Filed: February 2, 2009
    Publication date: September 10, 2009
    Applicant: Sony Corporation
    Inventor: Kojiro NAGAOKA
  • Publication number: 20080185637
    Abstract: Disclosed herein is an insulated gate field effect transistor including: (A) a source/drain region and a channel formation region; (B) a gate electrode formed above the channel formation region; and (C) a gate insulating film; wherein the gate insulating film is composed of a gate insulating film main body portion formed between the gate electrode and the channel formation region, and a gate insulating film extension portion extending from the insulating film main body portion to a middle of a side surface portion of the gate electrode, and when a height of the gate electrode is HGate and a height of the gate insulating film extension portion is HIns with a surface of the channel formation region as a reference, a relationship of HIns<HGate is fulfilled.
    Type: Application
    Filed: February 5, 2008
    Publication date: August 7, 2008
    Applicant: SONY CORPORATION
    Inventors: Kojiro Nagaoka, Yoshihiko Nagahama
  • Patent number: 6797571
    Abstract: The present invention provides a method of manufacturing a semiconductor device, in which while a conductive layer is formed on an oxide film formed as an insulating layer by using a CVD method, oxygen deficiency of the oxide film can be avoided without any drop in an dielectric breakdown resistance as the insulating layer of the oxide film and without any reduction in a long-term reliability. In this manufacturing method, when the conductive layer as a gate electrode is formed on the oxide film formed as a gate insulating layer, the conductive layer is formed in a non-reducing atmosphere.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: September 28, 2004
    Assignee: Sony Corporation
    Inventors: Kojiro Nagaoka, Masaki Saito
  • Publication number: 20030113971
    Abstract: The present invention provides a method of manufacturing a semiconductor device, in which while a conductive layer is formed on an oxide film formed as an insulating layer by using a CVD method, oxygen deficiency of the oxide film can be avoided without any drop in an dielectric breakdown resistance as the insulating layer of the oxide film and without any reduction in a long-term reliability. In this manufacturing method, when the conductive layer as a gate electrode is formed on the oxide film formed as a gate insulating layer, the conductive layer is formed in a non-reducing atmosphere.
    Type: Application
    Filed: October 18, 2002
    Publication date: June 19, 2003
    Inventors: Kojiro Nagaoka, Masaki Saito