Patents by Inventor Hiroki AKIBA

Hiroki AKIBA 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: 20240105388
    Abstract: A dielectric composition including a tungsten bronze type composite oxide as a main component represented by (Ba1-xSrx)aRbZrcTadO30+0.5e in terms of an atomic ratio. In the dielectric composition, c=(2a+3b?10)?e and d=(20?2a?3b)+e are satisfied. R includes at least one selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, and Sc. In the dielectric composition, 0.000?x?0.500, 5.100?a?5.860, 0.000?b?0.100, and ?0.150?e?0.150 are satisfied.
    Type: Application
    Filed: September 18, 2023
    Publication date: March 28, 2024
    Applicant: TDK CORPORATION
    Inventors: Hiroki AKIBA, Tetsuhiro TAKAHASHI, Toshihiro IGUCHI
  • Patent number: 11873255
    Abstract: In order to provide a dielectric composition having high density even when fired at a relatively low temperature, the main component of a dielectric composition includes tantalum and at least one of barium or strontium, and the subcomponent of the dielectric composition includes at least one element selected from the group consisting of vanadium, titanium, and aluminum.
    Type: Grant
    Filed: December 21, 2021
    Date of Patent: January 16, 2024
    Assignee: TDK CORPORATION
    Inventors: Toshihiro Iguchi, Tetsuhiro Takahashi, Hiroki Akiba, Ryota Nomura
  • Publication number: 20230192877
    Abstract: The present disclosure provides a technique for designing an epitope region-bridging biparatopic antibody, and also provides, through this technique, an antibody that has an improved agonist or antagonist function for an antigen or that promotes or enhances a chemical reaction catalyzed by an enzyme serving as an antigen.
    Type: Application
    Filed: March 29, 2021
    Publication date: June 22, 2023
    Inventors: Hiroki AKIBA, Kouhei TSUMOTO, Satoshi NAGATA
  • Publication number: 20230145549
    Abstract: A dielectric composition includes a main component containing tantalum and at least one of barium or strontium, and a subcomponent containing calcium and silicon.
    Type: Application
    Filed: September 23, 2022
    Publication date: May 11, 2023
    Applicant: TDK Corporation
    Inventors: Toshihiro IGUCHI, Tetsuhiro TAKAHASHI, Hiroki AKIBA, Ryota NOMURA
  • Publication number: 20230085744
    Abstract: Provided is a dielectric composition containing: a main component expressed by {BaxSr(1-x)}mTa4O12; and a first subcomponent, m satisfying a relationship of 1.95?m?2.40. The first subcomponent includes silicon and manganese. When the amount of the main component contained in the dielectric composition is set to 100 parts by mole, the amount of silicon contained in the dielectric composition is 5.0 to 20.0 parts by mole in terms of SiO2, and the amount of manganese contained in the dielectric composition is 1.0 to 4.5 parts by mole in terms of MnO.
    Type: Application
    Filed: September 15, 2022
    Publication date: March 23, 2023
    Applicant: TDK CORPORATION
    Inventors: Tetsuhiro TAKAHASHI, Toshihiro IGUCHI, Hiroki AKIBA, Ryota NOMURA
  • Patent number: 11442066
    Abstract: Finding a protein of a minute amount present on a cell membrane to provide a method for producing an antibody against the protein. Producing an antibody using a protein identified by an identification method including: a labeling step of using a labeling agent comprising at least one selected from bis-iminobiotin compounds and bis-biotin compounds to obtain cells having a labeled protein; a degradation step of preparing a degradation product for an immobilization treatment, the degradation product containing the labeled protein; an immobilization step of immobilizing the labeled protein contained in the degradation product for an immobilization treatment on a stationary phase via a streptavidin mutant; a cleavage step of releasing an analysis sample from the stationary phase on which the labeled protein is immobilized; and an analysis step of analyzing the analysis sample to identify the labeled protein.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: September 13, 2022
    Assignees: MITSUI CHEMICALS, INC, NATIONAL INSTITUTES OF BIOMEDICAL INNOVATION HEALTH AND NUTRITION, SAVID THERAPEUTICS INC.
    Inventors: Tsuneji Suzuki, Yoshiyuki Totani, Kosuke Mano, Shinichi Banba, Haruhiko Kamada, Taisuke Nakayama, Hiroki Akiba, Kouhei Tsumoto, Tsuyoshi Inoue
  • Publication number: 20220230776
    Abstract: In order to provide a dielectric composition having high relative permittivity at a wide range of temperatures, the main component of a dielectric composition includes strontium and tantalum.
    Type: Application
    Filed: December 21, 2021
    Publication date: July 21, 2022
    Applicant: TDK CORPORATION
    Inventors: Toshihiro IGUCHI, Tetsuhiro TAKAHASHI, Hiroki AKIBA, Ryota NOMURA
  • Publication number: 20220227673
    Abstract: In order to provide a dielectric composition having high density even when fired at a relatively low temperature, the main component of a dielectric composition includes tantalum and at least one of barium or strontium, and the subcomponent of the dielectric composition includes at least one element selected from the group consisting of vanadium, titanium, and aluminum.
    Type: Application
    Filed: December 21, 2021
    Publication date: July 21, 2022
    Applicant: TDK CORPORATION
    Inventors: Toshihiro IGUCHI, Tetsuhiro TAKAHASHI, Hiroki AKIBA, Ryota NOMURA
  • Patent number: 10777354
    Abstract: A dielectric composition with high voltage resistance and favorable reliability, and an electronic component using the dielectric composition. The dielectric composition contains, as a main component, a tungsten bronze type composite oxide represented by a chemical formula (Sr1.00?s?tBasCat)6.00?xRx(Ti1.00?aZra)x+2.00(Nb1.00?bTab)8.00?xO30.00 in which the R is at least one element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and s, t, x, a, and b satisfy 0.50?s?1.00, 0?t?0.50, 0.50?s+t?1.00, 0.50<x?1.50, 0.30?a?1.00, and 0?b?1.00. At least one or more elements selected from Mn, Mg, Co, V, W, Mo, Si, Li, B, and Al are contained as a sub component in 0.10 mol or more and 20.00 mol or less with respect to 100 mol of the main component.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: September 15, 2020
    Assignee: TDK CORPORATION
    Inventors: Sanshiro Aman, Hiroki Akiba, Keiko Takeuchi
  • Patent number: 10777355
    Abstract: [Object] provide a dielectric composition with high voltage resistance and favorable reliability, and an electronic component using the dielectric composition. [Solving Means] A dielectric composition contains, as a main component, a tungsten bronze type composite oxide represented by a chemical formula (Sr1.00?s?tBasCat)6.00?xRx(Ti1.00?aZra)x+2.00(Nb1.00?bTab)8.00?xO30.00, in which the R is at least one element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and s, t, x, a, and b satisfy 0.70?s?1.00, 0?t?0.30, 0.70?s+t?1.00, 0?x?0.50, 0.10?a?1.00, and 0?h?1.00. At least one or more elements selected from Mn, Mg, Co, V, W, Mo, Si, Li, B, and Al are contained as a sub component in 0.10 mol or more and 20.00 mol or less with respect to 100 mol of the main component.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: September 15, 2020
    Assignee: TDK CORPORATION
    Inventors: Sanshiro Aman, Hiroki Akiba, Keiko Takeuchi
  • Patent number: 10759709
    Abstract: A dielectric composition with high voltage resistance and favorable reliability, and an electronic component using the dielectric composition. The dielectric composition contains, as a main component, a tungsten bronze type composite oxide represented by a chemical formula (Sr1.00-(s+t)BasCat)6.00-xRx(Ti1.00-aZra)x+2.00(Nb1.00-bTab)8.00-xO30.00, in which the R is at least one element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and s, t, x, a, and b satisfy 0.50?s?1.00, 0?t?0.30, 0.50?s+t?1.00, 1.50<x?3.00, 0.20?a?1.00, and 0?b?1.00. At least one selected from Mn, Mg, Co, V, W, Mo, Si, Li, B, and Al is contained as a sub component in 0.10 mol or more and 20.00 mol or less with respect to 100 mol of the main component.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: September 1, 2020
    Assignee: TDK CORPORATION
    Inventors: Hiroki Akiba, Sanshiro Aman, Keiko Takeuchi
  • Patent number: 10513464
    Abstract: A dielectric composition with high voltage resistance and favorable reliability, and an electronic component using the composition, the composition containing a tungsten bronze type composite oxide represented by chemical formula (Sr1.00?(s+t)BasCat)6.00?xRx(Ti1.00?(a+d)ZraSid)x?2.00(Nb1.00?bTab)8.00?xO30.00, wherein R is at least one element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and s, t, x, a, b, and d satisfy 0?s?1.00, 0?t?1.00, 0?s+t?1.00, 0?x?3.00, 0.01?a?0.98, 0?b?1.00, 0.02?d?0.15, and 0.03?a+d?1.00. At least one element selected from Mn, Mg, Co, V, W, Mo, Li, B, and Al are contained as a sub component in 0.10 mol or more and 20.00 mol or less with respect to 100 mol of the main component.
    Type: Grant
    Filed: March 6, 2017
    Date of Patent: December 24, 2019
    Assignee: TDK CORPORATION
    Inventors: Hiroki Akiba, Sanshiro Aman, Keiko Takeuchi
  • Publication number: 20190383821
    Abstract: Finding a protein of a minute amount present on a cell membrane to provide a method for producing an antibody against the protein. Producing an antibody using a protein identified by an identification method including: a labeling step of using a labeling agent comprising at least one selected from bis-iminobiotin compounds and bis-biotin compounds to obtain cells having a labeled protein; a degradation step of preparing a degradation product for an immobilization treatment, the degradation product containing the labeled protein; an immobilization step of immobilizing the labeled protein contained in the degradation product for an immobilization treatment on a stationary phase via a streptavidin mutant; a cleavage step of releasing an analysis sample from the stationary phase on which the labeled protein is immobilized; and an analysis step of analyzing the analysis sample to identify the labeled protein.
    Type: Application
    Filed: February 19, 2018
    Publication date: December 19, 2019
    Applicants: MITSUI CHEMICALS, INC., NATIONAL INSTITUTES OF BIOMEDICAL INNOVATION, HEALTH AND NUTRITION, SAVID THERAPEUTICS INC.
    Inventors: Tsuneji SUZUKI, Yoshiyuki TOTANI, Kosuke MANO, Shinichi BANBA, Haruhiko KAMADA, Taisuke NAKAYAMA, Hiroki AKIBA, Kouhei TSUMOTO, Tsuyoshi INOUE
  • Publication number: 20190256425
    Abstract: A dielectric composition with high voltage resistance and favorable reliability, and an electronic component using the dielectric composition. The dielectric composition contains, as a main component, a tungsten bronze type composite oxide represented by a chemical formula (Sr1.00-(s+t)BasCat)6.00-xRx(Ti1.00-aZra)x+2.00(Nb1.00-bTab)8.00-xO30.00, in which the R is at least one element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and s, t, x, a, and b satisfy 0.50?s?1.00, 0?t?0.30, 0.50?s+t?1.00, 1.50<x?3.00, 0.20?a?1.00, and 0?b?1.00. At least one selected from Mn, Mg, Co, V, W, Mo, Si, Li, B, and Al is contained as a sub component in 0.10 mol or more and 20.00 mol or less with respect to 100 mol of the main component.
    Type: Application
    Filed: March 6, 2017
    Publication date: August 22, 2019
    Applicant: TDK CORPORATION
    Inventors: Hiroki AKIBA, Sanshiro AMAN, Keiko TAKEUCHI
  • Patent number: 10354799
    Abstract: A dielectric composition comprising a main component expressed by a chemical formula of (A6-xBxCx+2D8-xO30, 0?x?5), wherein said “A” component is at least one element selected form the group consisting of Ba, Ca, and Sr, said “B” component is at least one element selected from the group consisting of Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, said “C” component is at least one element selected from the group consisting of Ti, and Zr, said “D” component is at least one element selected from the group consisting of Nb, and Ta, and said dielectric composition comprises 2.50 mol or more and 20.00 mol or less of an oxide of Ge as a first sub component with respect to 100 mol of said main component.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: July 16, 2019
    Assignee: TDK CORPORATION
    Inventors: Ryota Nomura, Hiroki Akiba, Sanshiro Aman, Tetsuhiro Takahashi
  • Publication number: 20190115154
    Abstract: A dielectric composition with high voltage resistance and favorable reliability, and an electronic component using the dielectric composition. A dielectric composition contains, as a main component, a tungsten bronze type composite oxide represented by a chemical formula (Sr1.00?s?tBasCat)6.00?xRx(Ti1.00?aZra)x+2.00(Nb1.00?bTab)8.00?xO30.00, in which the R is at least one element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and s, t, x, a, and b satisfy 0.70?s?1.00, 0?t?0.30, 0.70?s+t?1.00, 0?x?0.50, 0.10?a?1.00, and 0?b?1.00. At least one or more elements selected from Mn, Mg, Co, V, W, Mo, Si, Li, B, and Al arc contained as a sub component in 0.10 mol or more and 20.00 mol or less with respect to 100 mol of the main component.
    Type: Application
    Filed: March 6, 2017
    Publication date: April 18, 2019
    Applicant: TDK CORPORATION
    Inventors: Sanshiro AMAN, Hiroki AKIBA, Keiko TAKEUCHI
  • Publication number: 20190112235
    Abstract: A dielectric composition with high voltage resistance and favorable reliability, and an electronic component using the composition, the composition containing a tungsten bronze type composite oxide represented by chemical formula (Sr1.00-(s+t)BasCat)6.00-xRx(Ti1.00-(a+d)ZraSid)x?2.00(Nb1.00-bTab)8.00-xO30.00, wherein R is at least one element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and s, t, x, a, b, and d satisfy 0?s?1.00, 0?t?1.00, 0?s+t?1.00, 0?x?3.00, 0.01?a?0.98, 0?b?1.00, 0.02?d?0.15, and 0.03?a+d?1.00. At least one element selected from Mn, Mg, Co, V, W, Mo, Li, B, and Al are contained as a sub component in 0.10 mol or more and 20.00 mol or less with respect to 100 mol of the main component.
    Type: Application
    Filed: March 6, 2017
    Publication date: April 18, 2019
    Applicant: TDK CORPORATION
    Inventors: Hiroki AKIBA, Sanshiro AMAN, Keiko TAKEUCHI
  • Publication number: 20190103222
    Abstract: A dielectric composition with high voltage resistance and favorable reliability, and an electronic component using the dielectric composition. The dielectric composition contains, as a main component, a tungsten bronze type composite oxide represented by a chemical formula (Sr1.00?s?tBasCat)6.00?xRx(Ti1.00?aZra)x+2.00(Nb1.00?bTab)8.00?xO30.00 in which the R is at least one element selected from Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, and s, t, x, a, and b satisfy 0.50?s?1.00, 0?t?0.50, 0.50?s+t?1.00, 0.50<x?1.50, 0.30?a?1.00, and 0?b?1.00. At least one or more elements selected from Mn, Mg, Co, V, W, Mo, Si, Li, B, and Al are contained as a sub component in 0.10 mol or more and 20.00 mol or less with respect to 100 mol of the main component.
    Type: Application
    Filed: March 6, 2017
    Publication date: April 4, 2019
    Applicant: TDK CORPORATION
    Inventors: Sanshiro AMAN, Hiroki AKIBA, Keiko TAKEUCHI
  • Publication number: 20180240594
    Abstract: A dielectric composition comprising a main component expressed by a chemical formula of (A6-xBxCx+2D8-xO30, 0?x?5), wherein said “A” component is at least one element selected form the group consisting of Ba, Ca, and Sr, said “B” component is at least one element selected from the group consisting of Y, La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, said “C” component is at least one element selected from the group consisting of Ti, and Zr, said “D” component is at least one element selected from the group consisting of Nb, and Ta, and said dielectric composition comprises 2.50 mol or more and 20.00 mol or less of an oxide of Ge as a first sub component with respect to 100 mol of said main component.
    Type: Application
    Filed: February 20, 2018
    Publication date: August 23, 2018
    Applicant: TDK CORPORATION
    Inventors: Ryota NOMURA, Hiroki AKIBA, Sanshiro AMAN, Tetsuhiro TAKAHASHI