Patents by Inventor Yoshio Itoh

Yoshio Itoh 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).

  • Publication number: 20230272239
    Abstract: A liquid composition contains an inorganic oxide and an organic solvent represented by the following Chemical Formula 1, where R1 and R2 each, independently represent straight chain alkyl groups or straight chain alkoxy groups, wherein the organic solvent has a topological index chai4v of 0.9 or greater.
    Type: Application
    Filed: February 17, 2023
    Publication date: August 31, 2023
    Inventors: Kayato OHYA, Ryuji HIGASHI, Toshiya SAGISAKA, Soh NOGUCHI, Yoshio ITOH, Tomomasa KAJITA, Satoshi NAKAJIMA, Hiromichi KURIYAMA, Shigeo TAKEUCHI
  • Publication number: 20230198010
    Abstract: A liquid composition containing a solvent, an inorganic solid electrolyte, and a dispersant is provided. The dispersant is soluble in the solvent. A 10% volume fraction-component's particle diameter (D10), a 50% volume fraction-component's particle diameter (D50), a 90% volume fraction-component's particle diameter (D90), and a mode diameter (Dm) of solids contained in the liquid composition satisfy D90/D10>10, D50<1 ?m, and Dm<2 ?m, where D10, D50, D90, and Dm are measured by a laser diffraction method.
    Type: Application
    Filed: November 8, 2022
    Publication date: June 22, 2023
    Applicant: Ricoh Company, Ltd.
    Inventors: Tomomasa KAJITA, Hiromichi Kuriyama, Satoshi Nakajima, Yoshio Itoh, Shigeo Takeuchi, Yuji Sone, Aya Utsuki, Kayato Ohya
  • Patent number: 10833358
    Abstract: To provide a non-aqueous electrolyte electricity-storage element including a positive electrode including a positive-electrode active material capable of inserting and releasing anions, a negative electrode including a negative-electrode active material capable of inserting and releasing cations, and a non-aqueous electrolyte, wherein the positive-electrode active material is porous carbon having pores having a three-dimensional network structure, and wherein a changing rate of a cross-sectional thickness of a positive electrode film including the positive-electrode active material defined by Formula (1) below is less than 45%.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: November 10, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoto Abe, Yoshio Itoh, Tatsuya Dan, Yuka Araki, Shuhei Takeshita
  • Patent number: 10811674
    Abstract: A non-aqueous electrolyte electricity-storage element which includes a positive electrode including a positive-electrode active material capable of inserting and releasing anions, a negative electrode including a negative-electrode active material, and a non-aqueous electrolyte, wherein the positive-electrode active material is formed of a carbonaceous material, and a surface of the carbonaceous material includes fluorine.
    Type: Grant
    Filed: August 15, 2017
    Date of Patent: October 20, 2020
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoto Abe, Yoshio Itoh, Tatsuya Dan, Yuka Araki, Shuhei Takeshita
  • Publication number: 20200044277
    Abstract: To provide a non-aqueous electrolyte electricity-storage element including a positive electrode including a positive-electrode active material capable of inserting and releasing anions, a negative electrode including a negative-electrode active material capable of inserting and releasing cations, and a non-aqueous electrolyte, wherein the positive-electrode active material is porous carbon having pores having a three-dimensional network structure, and wherein a changing rate of a cross-sectional thickness of a positive electrode film including the positive-electrode active material defined by Formula (1) below is less than 45%.
    Type: Application
    Filed: October 11, 2019
    Publication date: February 6, 2020
    Inventors: Naoto ABE, Yoshio ITOH, Tatsuya DAN, Yuka ARAKI, Shuhei TAKESHITA
  • Patent number: 10490846
    Abstract: To provide a non-aqueous electrolyte electricity-storage element including a positive electrode including a positive-electrode active material capable of inserting and releasing anions, a negative electrode including a negative-electrode active material capable of inserting and releasing cations, and a non-aqueous electrolyte, wherein the positive-electrode active material is porous carbon having pores having a three-dimensional network structure, and wherein a changing rate of a cross-sectional thickness of a positive electrode film including the positive-electrode active material defined by Formula (1) below is less than 45%.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: November 26, 2019
    Assignee: Ricoh Company, Ltd.
    Inventors: Naoto Abe, Yoshio Itoh, Tatsuya Dan, Yuka Araki, Shuhei Takeshita
  • Publication number: 20190190027
    Abstract: An active material is provided. The active material comprises a porous carbon having a plurality of pores forming a three-dimensional network structure and a conductive polymer, and at least a part of the plurality of pores contains the conductive polymer.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 20, 2019
    Inventors: Shuhei Takeshita, Masayoshi Nomura, Naoto Abe, Yoshio Itoh, Tatsuya Dan, Yuka Araki, Naoki Sugihara
  • Patent number: 10297828
    Abstract: To provide a non-aqueous electrolyte storage element including a positive electrode including a positive-electrode active material capable of inserting and eliminating anions, a negative electrode including a negative-electrode active material, and a non-aqueous electrolyte, wherein the positive-electrode active material includes a carbon material which has a plurality of pores constituting a three-dimensional network structure and has a solid electrolyte interface (SEI) material on a surface of the carbon material.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: May 21, 2019
    Assignee: RICOH COMPANY, LTD.
    Inventors: Yuka Araki, Naoto Abe, Yoshio Itoh, Tatsuya Dan, Shuhei Takeshita
  • Publication number: 20190051465
    Abstract: A non-aqueous electrolyte storage element has a positive electrode including a positive electrode active material allowing intercalation or deintercalation of anions, a negative electrode including a negative electrode active material, a non-aqueous electrolytic solution, and a separator disposed between the positive electrode and the negative electrode to hold the non-aqueous electrolytic solution. The positive electrode active material is carbon having pores of a three-dimensional network structure, and the carbon contains a carbonate salt. The carbon may contain the carbonate salt at least inside the three-dimensional network structure. The carbonate salt may be mixed into the carbon. At least a portion of a surface of the carbon may be covered with the carbonate salt.
    Type: Application
    Filed: July 13, 2016
    Publication date: February 14, 2019
    Applicant: Ricoh Company, Ltd.
    Inventors: Yuka ARAKI, Naoto ABE, Yoshio ITOH, Tatsuya DAN, Shuhei TAKESHITA
  • Publication number: 20180337429
    Abstract: Provided is a non-aqueous electrolyte electricity-storage element, which includes: a positive electrode including a positive-electrode active material capable of inserting and eliminating anions; a negative electrode including a negative-electrode active material; a non-aqueous electrolyte; and a separator that is disposed between the positive electrode and the negative electrode and retains the non-aqueous electrolyte, wherein the non-aqueous electrolyte includes a dinitrile compound, and an amount of the dinitrile compound is 33% by mass or less relative to the non-aqueous electrolyte.
    Type: Application
    Filed: May 15, 2018
    Publication date: November 22, 2018
    Inventors: Yuka ARAKI, Naoto ABE, Yoshio ITOH, Tatsuya DAN, Shuhei TAKESHITA, Yasutaka TANAKA
  • Publication number: 20180062174
    Abstract: A nonaqueous electrolytic solution storage element is provided. The nonaqueous electrolytic solution storage element includes a cathode containing a cathode active material, an anode containing an anode active material to which sodium ion is insertable and from which the sodium ion is separable, and a nonaqueous electrolytic solution. The anode active material comprises a porous carbon having a plurality of pores forming a three-dimensional network structure, and the porous carbon has crystallinity.
    Type: Application
    Filed: August 7, 2017
    Publication date: March 1, 2018
    Inventors: Shuhei TAKESHITA, Naoto ABE, Yoshio ITOH, Tatsuya DAN, Yuka ARAKI
  • Publication number: 20170365852
    Abstract: To provide a non-aqueous electrolyte storage element including a positive electrode including a positive-electrode active material capable of inserting and eliminating anions, a negative electrode including a negative-electrode active material, and a non-aqueous electrolyte, wherein the positive-electrode active material includes a carbon material which has a plurality of pores constituting a three-dimensional network structure and has a solid electrolyte interface (SEI) material on a surface of the carbon material.
    Type: Application
    Filed: June 1, 2017
    Publication date: December 21, 2017
    Applicant: RICOH COMPANY, LTD.
    Inventors: Yuka ARAKI, Naoto ABE, Yoshio ITOH, Tatsuya DAN, Shuhei TAKESHITA
  • Publication number: 20170352912
    Abstract: To provide a non-aqueous electrolyte electricity-storage element including a positive electrode including a positive-electrode active material capable of inserting and releasing anions, a negative electrode including a negative-electrode active material capable of inserting and releasing cations, and a non-aqueous electrolyte, wherein the positive-electrode active material is porous carbon having pores having a three-dimensional network structure, and wherein a changing rate of a cross-sectional thickness of a positive electrode film including the positive-electrode active material defined by Formula (1) below is less than 45%.
    Type: Application
    Filed: August 23, 2017
    Publication date: December 7, 2017
    Inventors: Naoto ABE, Yoshio ITOH, Tatsuya DAN, Yuka ARAKI, Shuhei TAKESHITA
  • Publication number: 20170346072
    Abstract: A non-aqueous electrolyte electricity-storage element which includes a positive electrode including a positive-electrode active material capable of inserting and releasing anions, a negative electrode including a negative-electrode active material, and a non-aqueous electrolyte, wherein the positive-electrode active material is formed of a carbonaceous material, and a surface of the carbonaceous material includes fluorine.
    Type: Application
    Filed: August 15, 2017
    Publication date: November 30, 2017
    Inventors: Naoto ABE, Yoshio ITOH, Tatsuya DAN, Yuka ARAKI, Shuhei TAKESHITA
  • Patent number: 8295413
    Abstract: A device of an example of the invention comprises a first section of which performs inverse fast Fourier transform for a channel estimation value obtained by channel estimation to obtain a channel impulse response, a second section which selects paths that belong to a group having a large element based on elements of paths for the channel impulse response, a third section which calculates autocorrelation values by time averaging for each of the paths selected by the second section, a fourth section which obtains an ensemble average value of the autocorrelation values by time averaging obtained by the third section, and a fifth section which obtains a Doppler frequency associated with the ensemble average value based on a characteristic of a relationship between an autocorrelation value and a Doppler frequency and the ensemble average value.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: October 23, 2012
    Assignee: Semiconductor Technology Academic Research Center
    Inventors: Naoto Sasaoka, Yoshio Itoh
  • Publication number: 20120100693
    Abstract: A method for manufacturing a semiconductor device formed by fractionization and division after a plurality of semiconductor elements are formed over a semiconductor substrate, includes forming a first resist portion over the semiconductor substrate prior to its fractionization. Trenches are formed in areas for dicing the semiconductor substrate. A second resin portion different in composition from the first resin portion is formed in each of the trenches. The semiconductor substrate is diced with respect to the second resin portion with widths each narrower than the trench thereby to bring the semiconductor device into fractionization and division.
    Type: Application
    Filed: September 23, 2011
    Publication date: April 26, 2012
    Inventors: Yoshio ITOH, Yoshimasa Kushima, Hirokazu Uchida
  • Patent number: 8063488
    Abstract: The semiconductor device comprises a first area and a second area positioned adjacent to the outside of the first area, the semiconductor substrate having a main surface and side surfaces and disposed in such a manner that the main surface is positioned in the first area and each of the side surfaces is positioned at a boundary between the first area and the second area, a plurality of pads formed over the main surface of the semiconductor substrate and a plurality of external connecting terminals formed thereon, which are respectively electrically connected to the pads, a first resin portion which is formed over the main surface of the semiconductor substrate so as to cover the pads and has a main surface and side surfaces, and which is formed in such a manner that the external connecting terminals are exposed from the main surface and each of the side surfaces is positioned at the boundary, and a second resin portion which is positioned in the second area and formed so as to cover the side surfaces of the s
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: November 22, 2011
    Assignee: Oki Semiconductor Co., Ltd.
    Inventors: Yoshio Itoh, Yoshimasa Kushima, Hirokazu Uchida
  • Publication number: 20100128823
    Abstract: A device of an example of the invention comprises a first section which performs IFFT for a channel estimation value obtained by channel estimation to obtain a channel impulse response, a second section which selects paths that belong to a group having a large element based on elements of paths for the channel impulse response, a third section which calculates autocorrelation values by time averaging for each of the paths selected by the second section, a fourth section which obtains an ensemble average value of the autocorrelation values by time averaging obtained by the third section, and a fifth section which obtains a Doppler frequency associated with the ensemble average value based on a characteristic of a relationship between an autocorrelation value and an Doppler frequency and the ensemble average value.
    Type: Application
    Filed: November 19, 2009
    Publication date: May 27, 2010
    Applicant: SEMICONDUCTOR TECHNOLOGY ACADEMIC RESEARCH CENTER
    Inventors: Naoto Sasaoka, Yoshio Itoh
  • Publication number: 20090243094
    Abstract: The semiconductor device comprises a first area and a second area positioned adjacent to the outside of the first area, the semiconductor substrate having a main surface and side surfaces and disposed in such a manner that the main surface is positioned in the first area and each of the side surfaces is positioned at a boundary between the first area and the second area, a plurality of pads formed over the main surface of the semiconductor substrate and a plurality of external connecting terminals formed thereon, which are respectively electrically connected to the pads, a first resin portion which is formed over the main surface of the semiconductor substrate so as to cover the pads and has a main surface and side surfaces, and which is formed in such a manner that the external connecting terminals are exposed from the main surface and each of the side surfaces is positioned at the boundary, and a second resin portion which is positioned in the second area and formed so as to cover the side surfaces of the s
    Type: Application
    Filed: March 27, 2009
    Publication date: October 1, 2009
    Applicant: OKI SEMICONDUCTOR CO., LTD.
    Inventors: Yoshio Itoh, Yoshimasa Kushima, Hirokazu Uchida
  • Patent number: 6489234
    Abstract: A method of making a semiconductor device includes the steps of etching, with a resist pattern (3) used as a mask, a contact pattern (4) in at least one interlayer insulation film (2) made on a silicon substrate (1); forming on the contact pattern an insulation film (5) containing silicon as a main component; and oxidizing by heat treatment the insulation film to provide an oxide film (6) including a side wall oxide film on an inside wall of the contact pattern.
    Type: Grant
    Filed: September 19, 2000
    Date of Patent: December 3, 2002
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Yoshio Itoh