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).
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Publication number: 20240105388Abstract: 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: ApplicationFiled: September 18, 2023Publication date: March 28, 2024Applicant: TDK CORPORATIONInventors: Hiroki AKIBA, Tetsuhiro TAKAHASHI, Toshihiro IGUCHI
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Patent number: 11873255Abstract: 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: GrantFiled: December 21, 2021Date of Patent: January 16, 2024Assignee: TDK CORPORATIONInventors: Toshihiro Iguchi, Tetsuhiro Takahashi, Hiroki Akiba, Ryota Nomura
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Publication number: 20230192877Abstract: 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: ApplicationFiled: March 29, 2021Publication date: June 22, 2023Inventors: Hiroki AKIBA, Kouhei TSUMOTO, Satoshi NAGATA
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Publication number: 20230145549Abstract: 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: ApplicationFiled: September 23, 2022Publication date: May 11, 2023Applicant: TDK CorporationInventors: Toshihiro IGUCHI, Tetsuhiro TAKAHASHI, Hiroki AKIBA, Ryota NOMURA
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Publication number: 20230085744Abstract: 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: ApplicationFiled: September 15, 2022Publication date: March 23, 2023Applicant: TDK CORPORATIONInventors: Tetsuhiro TAKAHASHI, Toshihiro IGUCHI, Hiroki AKIBA, Ryota NOMURA
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Patent number: 11442066Abstract: 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: GrantFiled: February 19, 2018Date of Patent: September 13, 2022Assignees: 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
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Publication number: 20220230776Abstract: 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: ApplicationFiled: December 21, 2021Publication date: July 21, 2022Applicant: TDK CORPORATIONInventors: Toshihiro IGUCHI, Tetsuhiro TAKAHASHI, Hiroki AKIBA, Ryota NOMURA
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Publication number: 20220227673Abstract: 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: ApplicationFiled: December 21, 2021Publication date: July 21, 2022Applicant: TDK CORPORATIONInventors: Toshihiro IGUCHI, Tetsuhiro TAKAHASHI, Hiroki AKIBA, Ryota NOMURA
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Patent number: 10777354Abstract: 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: GrantFiled: March 6, 2017Date of Patent: September 15, 2020Assignee: TDK CORPORATIONInventors: Sanshiro Aman, Hiroki Akiba, Keiko Takeuchi
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Patent number: 10777355Abstract: [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: GrantFiled: March 6, 2017Date of Patent: September 15, 2020Assignee: TDK CORPORATIONInventors: Sanshiro Aman, Hiroki Akiba, Keiko Takeuchi
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Patent number: 10759709Abstract: 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: GrantFiled: March 6, 2017Date of Patent: September 1, 2020Assignee: TDK CORPORATIONInventors: Hiroki Akiba, Sanshiro Aman, Keiko Takeuchi
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Patent number: 10513464Abstract: 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: GrantFiled: March 6, 2017Date of Patent: December 24, 2019Assignee: TDK CORPORATIONInventors: Hiroki Akiba, Sanshiro Aman, Keiko Takeuchi
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Publication number: 20190383821Abstract: 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: ApplicationFiled: February 19, 2018Publication date: December 19, 2019Applicants: 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
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Publication number: 20190256425Abstract: 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: ApplicationFiled: March 6, 2017Publication date: August 22, 2019Applicant: TDK CORPORATIONInventors: Hiroki AKIBA, Sanshiro AMAN, Keiko TAKEUCHI
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Patent number: 10354799Abstract: 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: GrantFiled: February 20, 2018Date of Patent: July 16, 2019Assignee: TDK CORPORATIONInventors: Ryota Nomura, Hiroki Akiba, Sanshiro Aman, Tetsuhiro Takahashi
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Publication number: 20190115154Abstract: 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: ApplicationFiled: March 6, 2017Publication date: April 18, 2019Applicant: TDK CORPORATIONInventors: Sanshiro AMAN, Hiroki AKIBA, Keiko TAKEUCHI
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Publication number: 20190112235Abstract: 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: ApplicationFiled: March 6, 2017Publication date: April 18, 2019Applicant: TDK CORPORATIONInventors: Hiroki AKIBA, Sanshiro AMAN, Keiko TAKEUCHI
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Publication number: 20190103222Abstract: 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: ApplicationFiled: March 6, 2017Publication date: April 4, 2019Applicant: TDK CORPORATIONInventors: Sanshiro AMAN, Hiroki AKIBA, Keiko TAKEUCHI
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Publication number: 20180240594Abstract: 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: ApplicationFiled: February 20, 2018Publication date: August 23, 2018Applicant: TDK CORPORATIONInventors: Ryota NOMURA, Hiroki AKIBA, Sanshiro AMAN, Tetsuhiro TAKAHASHI