Patents by Inventor Shuji Ikeda

Shuji Ikeda 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: 9449678
    Abstract: A P-type well region in which an inverter making up an SRAM cell is formed is subdivided into two portions, which are disposed on the opposite sides of an N-type well region NW1 and are formed so that a diffusion layer forming a transistor has no curvature while causing the layout direction to run in a direction parallel to well boundary lines and bit lines. At intermediate locations of an array, regions for use in supplying power to the substrate are formed in parallel to word lines in such a manner that one region is provided per group of thirty two memory cell rows or sixty four cell rows.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: September 20, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Kenichi Osada, Masataka Minami, Shuji Ikeda, Koichiro Ishibashi
  • Publication number: 20160245789
    Abstract: The present disclosure provides methods for forming a nano-gap electrode. In some cases, a nano-gap having a width adjusted by a film thickness of a sidewall may be formed between a first electrode-forming part and a second electrode-forming part using sidewall which has contact with first electrode-forming part as a mask. Surfaces of the first electrode-forming part, the sidewall and the second electrode-forming part may then be exposed. The sidewall may then be removed to form a nano-gap between the first electrode-forming part and the second electrode-forming part.
    Type: Application
    Filed: February 19, 2016
    Publication date: August 25, 2016
    Inventors: Shuji Ikeda, Mark Oldham, Eric Nordman
  • Publication number: 20160221081
    Abstract: In a method for jointing metal injection molded parts, [1] at least two metal injection molded parts each of which is injection-molded from mixtures of metal powders and binders are contacted with each other, [2] paste agents containing nitrogen or chlorine are pasted on a jointed portion at which the at least two metal injection molded parts are contacted with each other, and [3] the at least two metal injection molded parts are jointed at the jointed portion by degreasing or sintering, and thereby a metal product is manufactured. According to the jointing method, jointing strength of the jointed portion can be improved.
    Type: Application
    Filed: April 7, 2016
    Publication date: August 4, 2016
    Applicant: IHI Corporation
    Inventors: Hiroki Yoshizawa, Shigeyuki Satoh, Nobuyasu Tsuno, Natsuki Yoneyama, Shuji Ikeda, Takashi Yoshinouchi, Masayuki Satake
  • Patent number: 9286968
    Abstract: Prior known static random access memory (SRAM) cells required that a diffusion layer be bent into a key-like shape in order to make electrical contact with a substrate with a P-type well region formed therein, which would result in a decrease in asymmetry leading to difficulty in micro-patterning. To avoid this problem, the P-type well region in which an inverter making up an SRAM cell is formed is subdivided into two portions, which are disposed on the opposite sides of an N-type well region NW1 and are formed so that a diffusion layer forming a transistor has no curvature while causing the layout direction to run in a direction parallel to well boundary lines and bit lines. At intermediate locations of an array, regions for use in supply power to the substrate are formed in parallel to word lines.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 15, 2016
    Assignee: Renesas Electronics Corporation
    Inventors: Kenichi Osada, Masataka Minami, Shuji Ikeda, Koichiro Ishibashi
  • Publication number: 20160049188
    Abstract: A P-type well region in which an inverter making up an SRAM cell is formed is subdivided into two portions, which are disposed on the opposite sides of an N-type well region NW1 and are formed so that a diffusion layer forming a transistor has no curvature while causing the layout direction to run in a direction parallel to well boundary lines and bit lines. At intermediate locations of an array, regions for use in supplying power to the substrate are formed in parallel to word lines in such a manner that one region is provided per group of thirty two memory cell rows or sixty four cell rows.
    Type: Application
    Filed: June 26, 2015
    Publication date: February 18, 2016
    Inventors: Kenichi OSADA, Masataka Minami, Shuji Ikeda, Koichiro Ishibashi
  • Patent number: 8895244
    Abstract: Provided are a method and a kit for detecting 5-hydroxymethylcytosine in a nucleic acid. The method is a method for detecting 5-hydroxymethylcytosine in a nucleic acid, comprising the steps of: (1) oxidizing 5-hydroxymethylcytosine in a nucleic acid sample by treating the nucleic acid sample with a tungstic acid-based oxidizing agent comprising peroxotungstic acid, tungstic acid, a salt thereof, or a combination thereof with a reoxidizing agent; and (2) determining the position of the oxidized 5-hydroxymethylcytosine in the nucleic acid sample.
    Type: Grant
    Filed: April 16, 2012
    Date of Patent: November 25, 2014
    Assignee: Riken
    Inventors: Akimitsu Okamoto, Kaori Sugizaki, Akiko Nakamura, Hiroyuki Yanagisawa, Shuji Ikeda
  • Publication number: 20140045183
    Abstract: Provided are a method and a kit for detecting 5-hydroxymethylcytosine in a nucleic acid. The method is a method for detecting 5-hydroxymethylcytosine in a nucleic acid, comprising the steps of: (1) oxidizing 5-hydroxymethylcytosine in a nucleic acid sample by treating the nucleic acid sample with a tungstic acid-based oxidizing agent comprising peroxotungstic acid, tungstic acid, a salt thereof, or a combination thereof with a reoxidizing agent; and (2) determining the position of the oxidized 5-hydroxymethylcytosine in the nucleic acid sample.
    Type: Application
    Filed: April 16, 2012
    Publication date: February 13, 2014
    Applicant: RIKEN
    Inventors: Akimitsu Okamoto, Kaori Sugizaki, Akiko Nakamura, Hiroyuki Yanagisawa, Shuji Ikeda
  • Publication number: 20130289263
    Abstract: A compound is represented by the following formula (1), (2), or (3) (where, in the above formulae (1), (2), and (3), Z11 and Z12 independently have a fluorescent property and are an uncharged atomic group exhibiting an exciton effect).
    Type: Application
    Filed: December 28, 2011
    Publication date: October 31, 2013
    Applicant: RIKEN
    Inventors: Akimitsu Okamoto, Shuji Ikeda
  • Patent number: 8482058
    Abstract: In a high frequency amplifying MOSFET having a drain offset region, the size is reduced and the on-resistance is decreased by providing conductor plugs 13 (P1) for leading out electrodes on a source region 10, a drain region 9 and leach-through layers 3 (4), to which a first layer wirings 11a, 11d (M1) are connected and, further, backing second layer wirings 12a to 12d are connected on the conductor plugs 13 (P1) to the first layer wirings 11s, 11d (M1).
    Type: Grant
    Filed: June 1, 2012
    Date of Patent: July 9, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Yutaka Hoshino, Shuji Ikeda, Isao Yoshida, Shiro Kamohara, Megumi Kawakami, Tomoyuki Miyake, Masatoshi Morikawa
  • Patent number: 8482083
    Abstract: Prior known static random access memory (SRAM) cells required that a diffusion layer be bent into a key-like shape in order to make electrical contact with a substrate with a P-type well region formed therein, which would result in a decrease in asymmetry leading to occurrence of a problem as to the difficulty in micro-patterning. To avoid this problem, the P-type well region in which an inverter making up an SRAM cell is formed is subdivided into two portions, which are disposed on the opposite sides of an N-type well region NW1 and are formed so that a diffusion layer forming a transistor has no curvature while causing the layout direction to run in a direction parallel to well boundary lines and bit lines. At intermediate locations of an array, regions for use in supply power to the substrate are formed in parallel to word lines in such a manner that one region is provided per group of thirty two memory cell rows or sixty four cell rows.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: July 9, 2013
    Assignee: Renesas Electronics Corporation
    Inventors: Kenichi Osada, Masataka Minami, Shuji Ikeda, Koichiro Ishibashi
  • Publication number: 20130049131
    Abstract: Prior known static random access memory (SRAM) cells required that a diffusion layer be bent into a key-like shape in order to make electrical contact with a substrate with a P-type well region formed therein, which would result in a decrease in asymmetry leading to difficulty in micro-patterning. To avoid this problem, the P-type well region in which an inverter making up an SRAM cell is formed is subdivided into two portions, which are disposed on the opposite sides of an N-type well region NW1 and are formed so that a diffusion layer forming a transistor has no curvature while causing the layout direction to run in a direction parallel to well boundary lines and bit lines. At intermediate locations of an array, regions for use in supply power to the substrate are formed in parallel to word lines.
    Type: Application
    Filed: September 14, 2012
    Publication date: February 28, 2013
    Inventors: Kenichi OSADA, Masataka Minami, Shuji Ikeda, Koichiro Ishibashi
  • Patent number: 8383792
    Abstract: The present invention provides, for example, a labeling substance that allows the double helix structure of a nucleic acid to be detected effectively. The present invention provides a compound having a structure derived from mononucleoside or mononucleotide, with the structure being represented by the following formula (1), (1b), or (1c), a tautomer or stereoisomer thereof, or a salt thereof. In the above formulae, B is an atomic group having a nucleobase skeleton, E is an atomic group having a deoxyribose skeleton, a ribose skeleton, or a structure derived from either one of them, or an atomic group having a peptide structure or a peptoid structure, and Z11 and Z12 each are a hydrogen atom, a protecting group, or an atomic group that exhibits fluorescence and may be identical to or different from each other.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: February 26, 2013
    Assignee: Riken
    Inventors: Akimitsu Okamoto, Shuji Ikeda, Takeshi Kubota
  • Publication number: 20120235250
    Abstract: In a high frequency amplifying MOSFET having a drain offset region, the size is reduced and the on-resistance is decreased by providing conductor plugs 13 (P1) for leading out electrodes on a source region 10, a drain region 9 and leach-through layers 3 (4), to which a first layer wirings 11a, 11d (M1) are connected and, further, backing second layer wirings 12a to 12d are connected on the conductor plugs 13 (P1) to the first layer wirings 11s, 11d (M1).
    Type: Application
    Filed: June 1, 2012
    Publication date: September 20, 2012
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Yutaka Hoshino, Shuji Ikeda, Isao Yoshida, Shiro Kamohara, Megumi Kawakami, Tomoyuki Miyake, Masatoshi Morikawa
  • Patent number: 8232595
    Abstract: In a high frequency amplifying MOSFET having a drain offset region, the size is reduced and the on-resistance is decreased by providing conductor plugs 13 (P1) for leading out electrodes on a source region 10, a drain region 9 and leach-through layers 3 (4), to which a first layer wirings 11a, 11d (M1) are connected and, further, backing second layer wirings 12a to 12d are connected on the conductor plugs 13 (P1) to the first layer wirings 11s, 11d (M1).
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: July 31, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Yutaka Hoshino, Shuji Ikeda, Isao Yoshida, Shiro Kamohara, Megumi Kawakami, Tomoyuki Miyake, Masatoshi Morikawa
  • Publication number: 20120104502
    Abstract: Disclosed is a method of producing a semiconductor device, able to form a source/drain of a Schottky junction (FET) with simple steps and able to improve the device characteristics. A gate is formed on an element region defined in a silicon substrate layer by element isolation regions (first step), the silicon substrate is etched by self-alignment using the gate and the element isolation regions as masks (second step), and an insulating film is formed on the side surfaces of the gate (third step). Then, a metal film acting as the source/drain is selectively formed on the etching region of the silicon substrate by electroless plating (fourth step).
    Type: Application
    Filed: March 24, 2010
    Publication date: May 3, 2012
    Applicant: JX NIPPON MINING & METALS CORPORATION
    Inventors: Toru Imori, Junichi Ito, Hajime Momoi, Tomohiro Shibata, Shuji Ikeda
  • Patent number: 8133780
    Abstract: A SRAM of complete CMOS type having its memory cell composed of six MISFETs, in which a pair of local wiring lines for connecting the input/output terminals of CMOS inverters are formed of a refractory metal silicide layer formed over a first conducting layer constituting the individual gate electrodes of the drive MISFETs, the transfer MISFETs and the load MISFETs of the memory cell and in which a reference voltage line formed over the local wiring lines is arranged to be superposed over the local wiring lines to form a capacity element. Moreover, the capacity element is formed between the local wiring lines and the first conducting layer by superposing the local wiring lines over the first conducting layer. Moreover, the local wiring lines are formed by using resistance lowering means such as silicification. In addition, there are made common the means for lowering the resistance of the gate electrode of the transfer MISFETs and the means for forming the local wiring lines.
    Type: Grant
    Filed: March 10, 2011
    Date of Patent: March 13, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Shuji Ikeda, Toshiaki Yamanaka, Kenichi Kikushima, Shinichiro Mitani, Kazushige Sato, Akira Fukami, Masaya Iida, Akihiro Shimizu
  • Patent number: 8093681
    Abstract: A SRAM of complete CMOS type having its memory cell composed of six MISFETs, in which a pair of local wiring lines for connecting the input/output terminals of CMOS inverters are formed of a refractory metal silicide layer formed over a first conducting layer constituting the individual gate electrodes of the drive MISFETs, the transfer MISFETs and the load MISFETs of the memory cell and in which a reference voltage line formed over the local wiring lines is arranged to be superposed over the local wiring lines to form a capacity element. Moreover, the capacity element is formed between the local wiring lines and the first conducting layer by superposing the local wiring lines over the first conducting layer. Moreover, the local wiring lines are formed by using resistance lowering means such as silicification. In addition, there are made common the means for lowering the resistance of the gate electrode of the transfer MISFETs and the means for forming the local wiring lines.
    Type: Grant
    Filed: March 9, 2011
    Date of Patent: January 10, 2012
    Assignee: Renesas Electronics Corporation
    Inventors: Shuji Ikeda, Toshiaki Yamanaka, Kenichi Kikushima, Shinichiro Mitani, Kazushige Sato, Akira Fukami, Masaya Iida, Akihiro Shimizu
  • Patent number: 8034715
    Abstract: A Co silicide layer having a low resistance and a small junction leakage current is formed on the surface of the gate electrode, source and drain of MOSFETS by silicidizing a Co film deposited on a main plane of a wafer by sputtering using a high purity Co target having a Co purity of at least 99.99% and Fe and Ni contents of not greater than 10 ppm, preferably having a Co purity of 99.999%.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: October 11, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Shinji Nishihara, Shuji Ikeda, Naotaka Hashimoto, Hiroshi Momiji, Hiromi Abe, Shinichi Fukada, Masayuki Suzuki
  • Publication number: 20110220999
    Abstract: In a high frequency amplifying MOSFET having a drain offset region, the size is reduced and the on-resistance is decreased by providing conductor plugs 13 (P1) for leading out electrodes on a source region 10, a drain region 9 and leach-through layers 3 (4), to which a first layer wirings 11a, 11d (M1) are connected and, further, backing second layer wirings 12a to 12d are connected on the conductor plugs 13 (P1) to the first layer wirings 11s, 11d (M1).
    Type: Application
    Filed: May 19, 2011
    Publication date: September 15, 2011
    Applicant: RENESAS ELECTRONICS CORPORATION
    Inventors: Yutaka Hoshino, Shuji Ikeda, Isao Yoshida, Shiro Kamohara, Megumi Kawakami, Tomoyuki Miyake, Masatoshi Morikawa
  • Patent number: 7982263
    Abstract: In a high frequency amplifying MOSFET having a drain offset region, the size is reduced and the on-resistance is decreased by providing conductor plugs 13 (P1) for leading out electrodes on a source region 10, a drain region 9 and leach-through layers 3 (4), to which a first layer wirings 11a, 11d (M1) are connected and, further, backing second layer wirings 12a to 12d are connected on the conductor plugs 13 (P1) to the first layer wirings 11s, 11d (M1).
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: July 19, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Yutaka Hoshino, Shuji Ikeda, Isao Yoshida, Shiro Kamohara, Megumi Kawakami, Tomoyuki Miyake, Masatoshi Morikawa