Patents by Inventor Shohei Fujii
Shohei Fujii 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: 20230166767Abstract: A path checking device for a subject vehicle includes: a safety distance setting unit that sets a minimum safety distance for a surrounding vehicle in order for the subject vehicle to avoid closely approaching the obstacle; an emergency control unit that executes emergency control for the subject vehicle when a distance between the subject vehicle and the surrounding vehicle is less than the safety distance; and a caution distance setting unit that sets a caution distance for the subject vehicle to the surrounding vehicle. The emergency control unit is further configured to: determine whether the subject vehicle is traveling with the caution distance; and control the travel control unit to increase a distance from the subject vehicle to the surrounding vehicle to exceed the caution distance when the distance from the subject vehicle to the surrounding vehicle is less than the caution distance.Type: ApplicationFiled: January 25, 2023Publication date: June 1, 2023Inventors: JINGYU XIANG, SHOHEI FUJII, KEISUKE SHINODA, HIROYUKI OHSAWA
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Patent number: 11257620Abstract: A dielectric film comprises a complex oxide represented by a general formula xAO-yBO-zC2O5 as a main component, wherein A is at least one selected from barium, calcium and strontium, B is at least one selected from magnesium and zinc, C is at least one selected from niobium and tantalum, x, y and z satisfy relations: x+y+z=1.000, 0.375?x?0.563, 0.250?y?0.500, and x/3?z?(x/3)+1/9, and in an X-ray diffraction chart of the dielectric film, a diffraction peak intensity of a (211) plane of the complex oxide or a diffraction peak intensity of a (222) plane of the complex oxide is larger than a diffraction peak intensity of a (110) plane of the complex oxide.Type: GrantFiled: March 25, 2020Date of Patent: February 22, 2022Assignee: TDK CORPORATIONInventors: Maiko Shirokawa, Raitarou Masaoka, Shohei Fujii, Yusuke Oba
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Patent number: 11201013Abstract: A dielectric film comprises a complex oxide represented by a general formula xAO-yBO-zC2O5 as a main component, wherein A is at least one selected from barium, calcium and strontium, B is at least one selected from magnesium and zinc, C is at least one selected from niobium and tantalum, x, y and z satisfy relations: x+y+z=1.000, 0.375?x?0.563, 0.250?y?0.500, and x/3?z?(x/3)+1/9, and a full width at half maximum of a diffraction peak of a (110) plane of the complex oxide is 0.40° or more in an X-ray diffraction chart of the dielectric film.Type: GrantFiled: March 26, 2020Date of Patent: December 14, 2021Assignee: TDK CORPORATIONInventors: Yusuke Oba, Raitarou Masaoka, Shohei Fujii, Maiko Shirokawa
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Patent number: 11130683Abstract: A dielectric composition having a high relative dielectric constant and high Q value even at high frequencies, and an electronic component including a dielectric film configured from the dielectric composition. This dielectric composition includes the composite oxide represented by general formula (aCaO+bSrO)—ZrO2 as a main component, and by a and b satisfying the relationships a?0, b?0, and 1.50<a+b?4.00.Type: GrantFiled: February 23, 2018Date of Patent: September 28, 2021Assignee: TDK CORPORATIONInventors: Shohei Fujii, Raitarou Masaoka, Maiko Nakamura
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Patent number: 10974318Abstract: A CAE analysis die model is produced such that a cavity of a die for obtaining a cast product is divided into multiple elements. Fluidity analysis and solidification analysis are performed under a predetermined casting condition by means of the die model to calculate, for each element, a factor regarding growth of a solidification structure, a factor regarding purity of molten metal, and a factor regarding a hole defect. Mechanical characteristics of each portion of the cast product are obtained by a regression expression obtained by multiple regression analysis using mechanical characteristics of the cast product as an objective variable and using each factor as an explanatory variable.Type: GrantFiled: November 20, 2018Date of Patent: April 13, 2021Assignee: MAZDA MOTOR CORPORATIONInventors: Koji Takemura, Ichiro Kouno, Shohei Fujii, Shohei Hanaoka
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Publication number: 20200312558Abstract: A dielectric film comprises a complex oxide represented by a general formula xAO-yBO-zC2O5 as a main component, wherein A is at least one selected from barium, calcium and strontium, B is at least one selected from magnesium and zinc, C is at least one selected from niobium and tantalum, x, y and z satisfy relations: x+y+z=1.000, 0.375?x?0.563, 0.250?y?0.500, and x/3?z?(x/3)+1/9, and a full width at half maximum of a diffraction peak of a (110) plane of the complex oxide is 0.40° or more in an X-ray diffraction chart of the dielectric film.Type: ApplicationFiled: March 26, 2020Publication date: October 1, 2020Applicant: TDK CORPORATIONInventors: Yusuke OBA, Raitarou MASAOKA, Shohei FUJII, Maiko SHIROKAWA
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Publication number: 20200312557Abstract: A dielectric film comprises a complex oxide represented by a general formula xAO-yBO-zC2O5 as a main component, wherein A is at least one selected from barium, calcium and strontium, B is at least one selected from magnesium and zinc, C is at least one selected from niobium and tantalum, x, y and z satisfy relations: x+y+z=1.000, 0.375, 0.563, 0.250, 0.500, and x/3, (x/3)+ 1/9, and in an X-ray diffraction chart of the dielectric film, a diffraction peak intensity of a (211) plane of the complex oxide or a diffraction peak intensity of a (222) plane of the complex oxide is larger than a diffraction peak intensity of a (110) plane of the complex oxide.Type: ApplicationFiled: March 25, 2020Publication date: October 1, 2020Applicant: TDK CORPORATIONInventors: Maiko SHIROKAWA, Raitarou MASAOKA, Shohei FUJII, Yusuke OBA
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Publication number: 20190382278Abstract: A dielectric composition having a high relative dielectric constant and high Q value even at high frequencies, and an electronic component including a dielectric film configured from the dielectric composition. This dielectric composition includes the composite oxide represented by general formula (aCaO+bSrO)—ZrO2 as a main component, and by a and b satisfying the relationships a?0, b?0, and 1.50<a+b?4.00.Type: ApplicationFiled: February 23, 2018Publication date: December 19, 2019Applicant: TDK CORPORATIONInventors: Shohei FUJII, Raitarou MASAOKA, Maiko NAKAMURA
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Publication number: 20190184456Abstract: A CAE analysis die model is produced such that a cavity of a die for obtaining a cast product is divided into multiple elements. Fluidity analysis and solidification analysis are performed under a predetermined casting condition by means of the die model to calculate, for each element, a factor regarding growth of a solidification structure, a factor regarding purity of molten metal, and a factor regarding a hole defect. Mechanical characteristics of each portion of the cast product are obtained by a regression expression obtained by multiple regression analysis using mechanical characteristics of the cast product as an objective variable and using each factor as an explanatory variable.Type: ApplicationFiled: November 20, 2018Publication date: June 20, 2019Applicant: MAZDA MOTOR CORPORATIONInventors: Koji TAKEMURA, Ichiro KOUNO, Shohei FUJII, Shohei HANAOKA
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Patent number: 10121592Abstract: A dielectric thin film containing MgO as a main component, wherein the dielectric thin film is composed of a columnar structure group containing at least one columnar structure A constructed by single crystal and at least one columnar structure B constructed by polycrystal, respectively, and in the cross section of the direction perpendicular to the dielectric thin film, when the area occupied by the columnar structure A is set as CA and the area occupied by the columnar structure B is set as CB, the relationship between CA and CB satisfies 0.4?CB/CA?1.1.Type: GrantFiled: March 15, 2017Date of Patent: November 6, 2018Assignee: TDK CORPORATIONInventors: Maiko Shirokawa, Raitarou Masaoka, Hiroki Uchiyama, Shohei Fujii
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Patent number: 10035711Abstract: A dielectric film containing an alkaline earth metal oxide having a NaCl type crystal structure as a main component, wherein the dielectric film has a (111)-oriented columnar structure in a direction perpendicular to the surface of the dielectric film, and in a Cu—K? X-ray diffraction chart of the dielectric film, a half width of the diffraction peak of (111) is in a range of from 0.3° to 2.0°.Type: GrantFiled: March 15, 2017Date of Patent: July 31, 2018Assignee: TDK CORPORATIONInventors: Hiroki Uchiyama, Raitarou Masaoka, Shohei Fujii, Maiko Shirokawa
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Patent number: 9862646Abstract: A dielectric composition containing a complex oxide represented by the formula of A?B?C2?O?+?+5? as the main component, wherein A represents Ba, B represents at least one element selected from the group consisting of Ca and Sr, C represents at least one element selected from the group consisting of Ta and Nb, and ?, ? and ? meet the following conditions, i.e., ?+?+?=1.000, 0.000<??0.375, 0.625??<1.000, 0.000???0.375.Type: GrantFiled: September 28, 2016Date of Patent: January 9, 2018Assignee: TDK CORPORATIONInventors: Shohei Fujii, Raitarou Masaoka, Hiroki Uchiyama, Maiko Shirokawa
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Publication number: 20170278632Abstract: A dielectric thin film containing MgO as a main component, wherein the dielectric thin film is composed of a columnar structure group containing at least one columnar structure A constructed by single crystal and at least one columnar structure B constructed by polycrystal, respectively, and in the cross section of the direction perpendicular to the dielectric thin film, when the area occupied by the columnar structure A is set as CA and the area occupied by the columnar structure B is set as CB, the relationship between CA and CB satisfies 0.4?CB/CA?1.1.Type: ApplicationFiled: March 15, 2017Publication date: September 28, 2017Applicant: TDK CORPORATIONInventors: Maiko SHIROKAWA, Raitarou MASAOKA, Hiroki UCHIYAMA, Shohei FUJII
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Publication number: 20170275174Abstract: A dielectric film containing an alkaline earth metal oxide having a NaCl type crystal structure as a main component, wherein the dielectric film has a (111)-oriented columnar structure in a direction perpendicular to the surface of the dielectric film, and in a Cu—K? X-ray diffraction chart of the dielectric film, a half width of the diffraction peak of (111) is in a range of from 0.3° to 2.0°.Type: ApplicationFiled: March 15, 2017Publication date: September 28, 2017Applicant: TDK CORPORATIONInventors: Hiroki UCHIYAMA, Raitarou MASAOKA, Shohei FUJII, Maiko SHIROKAWA
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Patent number: 9745225Abstract: A dielectric composition containing a complex oxide represented by the formula of xAO-yBO-zC2O5 as the main component, wherein A represents at least one element selected from the group including Ba, Ca and Sr, B represents Mg, and C represents at least one element selected from the group including Nb and Ta, and x, y and z meet the following conditions, x+y+z=1.000, 0.000<x?0.281, 0.625?y<1.000, and 0.000<z?0.375.Type: GrantFiled: June 24, 2016Date of Patent: August 29, 2017Assignee: TDK CORPORATIONInventors: Raitarou Masaoka, Hiroki Uchiyama, Shohei Fujii, Maiko Shirokawa
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Patent number: 9748018Abstract: A dielectric composition containing a complex oxide represented by the formula of xAO-yBO-zC2O5 as the main component, wherein A represents at least one element selected from the group including Ba, Ca and Sr, B represents Mg, and C represents at least one element selected from the group including Nb and Ta, and x, y and z meet the following conditions, x+y+z=1.000, 0.198?x?0.375, 0.389?y?0.625, and x/3?z?x/3+1/9.Type: GrantFiled: June 24, 2016Date of Patent: August 29, 2017Assignee: TDK CORPORATIONInventors: Raitarou Masaoka, Hiroki Uchiyama, Shohei Fujii, Maiko Shirokawa
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Publication number: 20170096371Abstract: A dielectric composition containing a complex oxide represented by the formula of A?B?C2?O?+?+5? as the main component, wherein A represents Ba, B represents at least one element selected from the group consisting of Ca and Sr, C represents at least one element selected from the group consisting of Ta and Nb, and ?, ? and ? meet the following conditions, i.e., ?+?+?=1.000, 0.000<??0.375, 0.625??<1.000, 0.000???0.375.Type: ApplicationFiled: September 28, 2016Publication date: April 6, 2017Applicant: TDK CORPORATIONInventors: Shohei FUJII, Raitarou MASAOKA, Hiroki UCHIYAMA, Maiko SHIROKAWA
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Patent number: 9567263Abstract: A dielectric composition contains a complex oxide represented by the formula of xAO-yB?O-zB?2O5 as the main component, wherein A represents at least one element selected from the group made of Ba, Ca and Sr, B? represents at least one element selected from the group made of Mg, Zn and Ni, B? represents at least one element selected from the group made of Nb and Ta, and x, y and z meet the following conditions, x+y+z=1.000, 0.375?x?0.563, 0.250?y?0.500, and x/3?z?x/3+1/9. An electronic component using the dielectric composition is also provided.Type: GrantFiled: October 13, 2015Date of Patent: February 14, 2017Assignee: TDK CORPORATIONInventors: Raitarou Masaoka, Hiroki Uchiyama, Shohei Fujii, Noriko Ogasawara
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Publication number: 20160376198Abstract: A dielectric composition containing a complex oxide represented by the formula of xAO-yBO-zC2O5 as the main component, wherein A represents at least one element selected from the group including Ba, Ca and Sr, B represents Mg, and C represents at least one element selected from the group including Nb and Ta, and x, y and z meet the following conditions, x+y+z=1.000, 0.000<x?0.281, 0.625?y<1.000, and 0.000<z?0.375.Type: ApplicationFiled: June 24, 2016Publication date: December 29, 2016Applicant: TDK CORPORATIONInventors: Raitarou MASAOKA, Hiroki UCHIYAMA, Shohei FUJII, Maiko SHIROKAWA
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Publication number: 20160379732Abstract: A dielectric composition containing a complex oxide represented by the formula of xAO-yBO-zC2O5 as the main component, wherein A represents at least one element selected from the group including Ba, Ca and Sr, B represents Mg, and C represents at least one element selected from the group including Nb and Ta, and x, y and z meet the following conditions, x+y+z=1.000, 0.198?x?0.375, 0.389?y?0.625, and x/3?z?x/3+1/9.Type: ApplicationFiled: June 24, 2016Publication date: December 29, 2016Applicant: TDK CORPORATIONInventors: Raitarou MASAOKA, Hiroki UCHIYAMA, Shohei FUJII, Maiko SHIROKAWA