Patents by Inventor Keiji Ono
Keiji Ono 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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Patent number: 11966115Abstract: Used is a display device including: a first substrate having a first front surface and a first back surface located on an opposite side of the first front surface; a second substrate having a second back surface opposing the first front surface and a second front surface located on an opposite side of the second back surface; a liquid crystal layer arranged between the first front surface of the first substrate and the second back surface of the second substrate; a first light guide plate adhesively fixed onto the second front surface of the second substrate via a first adhesive layer; and a light source unit arranged at a position opposing a first side surface of the first light guide plate, in which refractive index of the first light guide plate is lower than refractive index of the first adhesive layer.Type: GrantFiled: October 19, 2023Date of Patent: April 23, 2024Assignee: Japan Display Inc.Inventors: Yoshinori Tanaka, Keita Ono, Keiji Tago
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Publication number: 20240074320Abstract: A piezoelectric element includes a piezoelectric body and first, second, third, and fourth electrode layers disposed in the piezoelectric body. Each of the first, second, third, and fourth electrode layers includes a pair of first electrodes and a pair of second electrodes. The first and second electrodes included in the first electrode layer oppose the second and first electrodes included in the second electrode layer, respectively, with a part of the piezoelectric body. The first and second electrodes included in the second electrode layer oppose the first and second electrodes included in the third electrode layer, respectively, with a part of the piezoelectric body. The first and second electrodes included in the third electrode layer oppose the second and first electrodes included in the fourth electrode layer, respectively, with a part of the piezoelectric body.Type: ApplicationFiled: August 23, 2023Publication date: February 29, 2024Applicant: TDK CORPORATIONInventors: Shuto ONO, Satoshi SASAKI, Yasuyuki SATOH, Keiji OGUCHI
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Patent number: 9040094Abstract: The present invention has an object to provide a flaky particulate material giving skin an excellent smoothness, which is free from whitening problem upon use thereof owing to its high transparency. The present invention also has another object to provide a cosmetic composition containing the flaky particulate material. The present invention relates to flaky particulate material, which has an average coefficient of friction is not more than 0.50, and a total light transmittance is not less than 85%. A particle in the flaky particulate material comprises a substrate particle made of one material selected from the group consisting of mica, a synthetic mica, sericite, talc, barium sulfate and aluminum oxide. The present invention provides a flaky particulate material that gives skin excellent smoothness, a natural tone, and a matt appearance. The flaky particulate material of the present invention gives a cosmetic composition which provides great comfort of use, and an excellent appearance.Type: GrantFiled: October 10, 2014Date of Patent: May 26, 2015Assignee: Sakai Chemical Industry Co., Ltd.Inventors: Keiji Ono, Takuro Ashida, Hiroyuki Izumikawa, Hirobumi Yoshida
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Publication number: 20150030768Abstract: The present invention has an object to provide a flaky particulate material giving skin an excellent smoothness, which is free from whitening problem upon use thereof owing to its high transparency. The present invention also has another object to provide a cosmetic composition containing the flaky particulate material. The present invention relates to flaky particulate material, which has an average coefficient of friction is not more than 0.50, and a total light transmittance is not less than 85%. A particle in the flaky particulate material comprises a substrate particle made of one material selected from the group consisting of mica, a synthetic mica, sericite, talc, barium sulfate and aluminum oxide. The present invention provides a flaky particulate material that gives skin excellent smoothness, a natural tone, and a matt appearance. The flaky particulate material of the present invention gives a cosmetic composition which provides great comfort of use, and an excellent appearance.Type: ApplicationFiled: October 10, 2014Publication date: January 29, 2015Inventors: Keiji ONO, Takuro ASHIDA, Hiroyuki IZUMIKAWA, Hirobumi YOSHIDA
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Publication number: 20130105737Abstract: Zinc sulfide phosphor that has high energy efficiency and color purity and that emits blue light is provided. Specifically, a zinc sulfide phosphor adapted for use as a light source or in a display by being applied to powder EL elements is provided. The zinc sulfide blue phosphor comprises copper, silver or both elements and nickel, iron or both elements. The phosphor is obtained by adding a compound comprising copper, silver or both elements, a zinc compound, a sulfidizing agent and a compound comprising nickel, iron or both elements as an aqueous solution to an organic solvent to form a reaction mixture, heating the mixture and removing water from the reaction mixture by azeotropic dehydration of water and the organic solvent to obtain a zinc sulfide phosphor precursor, further sintering the zinc sulfide phosphor precursor.Type: ApplicationFiled: May 11, 2011Publication date: May 2, 2013Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.Inventors: Keiji Ono, Akihumi Sano, Hiroki Nagayoshi, Keita Kobayashi, Satoshi Komori, Atsuki Terabe, Yosuke Akahori, Kazuma Inoue, Hideharu Iwasaki
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Publication number: 20110189529Abstract: The present invention provides a sodium secondary battery. The sodium secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolytic solution, the separator is composed of a porous laminate film in which a heat resistant porous layer and a porous film are stacked each other, and the heat resistant porous layer is disposed on the positive electrode side.Type: ApplicationFiled: June 29, 2009Publication date: August 4, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoru Kuze, Yutaka Suzuki, Keiji Ono
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Patent number: 7985289Abstract: The present invention provides an ultrafine barium sulfate particle, which improves, even if the particle is mixed in a water-borne composition, such as a water-borne coating composition or a water-borne ink composition, color saturation and gloss of color pigments, such as carbon black, or improve orientation of aluminum flakes or pearl pigments, which have been used in metallic coating compositions. The present invention also provides a water-borne coating composition and a water-borne ink composition, which contain the ultrafine barium sulfate particle. The present invention provides an ultrafine barium sulfate particle, comprising barium sulfate; and (1) a hydroxide and/or an oxide of at least one metallic element selected from the group consisting of Al, Si and Zr; and/or (2) a phosphate of at least one metallic element selected from the group consisting of Mg, Ca, Sr and Ba; the barium sulfate being coated with the hydroxide and/or oxide (1) and/or the phosphate (2).Type: GrantFiled: May 18, 2006Date of Patent: July 26, 2011Assignee: Sakai Chemical Industry., Ltd.Inventors: Keiji Ono, Hiroyuki Izumikawa, Hirobumi Yoshida
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Publication number: 20110171513Abstract: The present invention provides a sodium secondary battery. The sodium secondary battery includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and a nonaqueous electrolytic solution, the separator is composed of a porous laminate film in which a heat resistant porous layer and a porous film are stacked each other, and the heat resistant porous layer is disposed on the negative electrode side.Type: ApplicationFiled: June 29, 2009Publication date: July 14, 2011Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoru Kuze, Yutaka Suzuki, Keiji Ono
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Patent number: 7964112Abstract: A phosphor having a high brightness after being exposed to plasma and a phosphor paste containing the phosphor. The phosphor comprises a fluorescent substance A1 containing a compound represented by the following formula (I) and at least one activator selected from the group consisting of Eu and Mn, and a fluorescent substance B1 containing an aluminate; mM1O.nM2O.2M3O2??(I) [in the formula (I), M1 is at least two selected from the group consisting of Ca, Sr and Ba, or Ca alone or Ba alone; M2 is at least one selected from the group consisting of Mg and Zn; M3 is at least one selected from the group consisting of Si and Ge; 0.5?m?3.5; and 0.5?n?2.5].Type: GrantFiled: October 21, 2003Date of Patent: June 21, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Keiji Ono, Susumu Miyazaki
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Publication number: 20100162922Abstract: The present invention provides an ultrafine barium sulfate particle, which improves, even if the particle is mixed in a water-borne composition, such as a water-borne coating composition or a water-borne ink composition, color saturation and gloss of color pigments, such as carbon black, or improve orientation of aluminum flakes or pearl pigments, which have been used in metallic coating compositions. The present invention also provides a water-borne coating composition and a water-borne ink composition, which contain the ultrafine barium sulfate particle. The present invention provides an ultrafine barium sulfate particle, comprising barium sulfate; and (1) a hydroxide and/or an oxide of at least one metallic element selected from the group consisting of Al, Si and Zr; and/or (2) a phosphate of at least one metallic element selected from the group consisting of Mg, Ca, Sr and Ba; the barium sulfate being coated with the hydroxide and/or oxide (1) and/or the phosphate (2).Type: ApplicationFiled: May 18, 2006Publication date: July 1, 2010Inventors: Keiji Ono, Hiroyuki Izumikawa, Hirobumi Yoshida
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Publication number: 20100098780Abstract: The present invention has an object to provide a flaky particulate material giving skin an excellent smoothness, which is free from whitening problem upon use thereof owing to its high transparency. The present invention also has another object to provide a cosmetic composition containing the flaky particulate material. The present invention relates to flaky particulate material, which has an average coefficient of friction is not more than 0.50, and a total light transmittance is not less than 85%. A particle in the flaky particulate material comprises a substrate particle made of one material selected from the group consisting of mica, a synthetic mica, sericite, talc, barium sulfate and aluminum oxide. The present invention provides a flaky particulate material that gives skin excellent smoothness, a natural tone, and a matt appearance. The flaky particulate material of the present invention gives a cosmetic composition which provides great comfort of use, and an excellent appearance.Type: ApplicationFiled: February 13, 2007Publication date: April 22, 2010Applicant: SAKAI CHEMICAL INDUSTRY CO., LTD.Inventors: Keiji Ono, Takuro Ashida, Hiroyuki Izumikawa, Hirobumi Yoshida
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Patent number: 7622057Abstract: A phosphor and a vacuum ultraviolet excited light-emitting device are disclosed. The phosphor comprises a compound represented by the following formula (1) Ca1?a?bSraEubMgSi2O6??(1) wherein 0.1<a?0.35 and 0.003?b?0.02. The phosphor is excited by vacuum ultraviolet and emits blue light with high brightness. The vacuum ultraviolet excited light-emitting device comprises the above phosphor.Type: GrantFiled: May 13, 2004Date of Patent: November 24, 2009Assignee: Sumitomo Chemical Company, LimitedInventors: Toshinori Isobe, Keiji Ono, Susumu Miyazaki
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Publication number: 20070247051Abstract: Disclosed are a phosphor, a phosphor paste, and a light-emitting device. The phosphor comprises a compound represented by the formula (1): CaaSrbEu1-a-bMgSi2O6??(1) wherein 0.4?a?0.7, 0.4?b?0.7, and a+b?0.990. The phosphor paste comprises the above phosphor and an organic compound. The light-emitting device comprises the above phosphor and an electrode.Type: ApplicationFiled: August 31, 2005Publication date: October 25, 2007Applicant: SUMITOMO CHEMICAL COMPANY, LIMITEDInventors: Satoru Kuze, Keiji Ono, Susumu Miyazaki, Yuichiro Imanari, Toshinori Isobe
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Patent number: 7229664Abstract: A process for producing a vacuum ultraviolet ray-excited light-emitting phosphor comprising the steps of mixing a phosphor with a aluminum-based coupling agent, and calcining the mixture.Type: GrantFiled: March 19, 2001Date of Patent: June 12, 2007Assignee: Sumitomo Chemical Company, LimitedInventors: Keiji Ono, Susumu Miyazaki
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Publication number: 20070029524Abstract: A phosphor and a vacuum ultraviolet excited light-emitting device are disclosed. The phosphor comprises a compound represented by the following formula (1) Ca1?a?bSraEubMgSi2O6??(1) wherein 0.1<a?0.35 and 0.003?b?0.02. The phosphor is excited by vacuum ultraviolet and emits blue light with high brightness. The vacuum ultraviolet excited light-emitting device comprises the above phosphor.Type: ApplicationFiled: May 13, 2004Publication date: February 8, 2007Inventors: Toshinori Isobe, Keiji Ono, Susumu Miyazaki
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Publication number: 20070018137Abstract: A phosphor having a high brightness after being exposed to plasma and a phosphor paste containing the phosphor. The phosphor comprises a fluorescent substance A1 containing a compound represented by the following formula (I) and at least one activator selected from the group consisting of Eu and Mn, and a fluorescent substance B1 containing an aluminate; mM1O.nM2O.2M3O2??(I) [in the formula (I), M1 is at least two selected from the group consisting of Ca, Sr and Ba, or Ca alone or Ba alone; M2 is at least one selected from the group consisting of Mg and Zn; M3 is at least one selected from the group consisting of Si and Ge; 0.5?m?3.5; and 0.5?n?2.5].Type: ApplicationFiled: October 21, 2003Publication date: January 25, 2007Inventors: Keiji Ono, Susumu Miyazaki
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Patent number: 6922013Abstract: A phosphor layer having a high luminance, and a vacuum ultra-violet radiation excited light emitting element are provided. A phosphor layer having a voidage of not less than 60 vol %, the phosphor layer in which a phosphor having a BET specific surface area of not less than 3 m2/g is used, and a vacuum ultra-violet radiation excited light emitting element are provided.Type: GrantFiled: December 5, 2001Date of Patent: July 26, 2005Assignee: Sumitomo Chemical Company, LimitedInventors: Keiji Ono, Susumu Miyazaki
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Patent number: 6919060Abstract: The object of the present invention is to provide a process for producing particles of a metal compound having a spherical particle shape and an average particle diameter larger than 0.3 ?m without employing high-pressure conditions. This object is achieved by a process for producing particle of a metal compound comprising a step of adjusting pH of an aqueous solution containing urea and at least one metal element to from 4 to 8, a step of heating the aqueous solution under normal pressure, a step of separating a solid from the solution, and a step of drying the solid.Type: GrantFiled: February 21, 2003Date of Patent: July 19, 2005Assignees: Sumitomo Chemical Company, Limited, National Institute of Advance Industrial Science and TechnologyInventors: Keiji Ono, Susumu Miyazaki, Takayoshi Ezuhara, Yoshihiro Nishisu, Mikio Kobayashi
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Patent number: 6884367Abstract: The object of the present invention is to provide a production method for a silicate phosphor having high brightness. This object is achieved by the method for producing a silicate phosphor comprising a step of calcining a mixture of metal compounds, wherein one of the metal compounds is silicon oxide having BET specific surface area of not less than 10 m2/g.Type: GrantFiled: December 13, 2002Date of Patent: April 26, 2005Assignee: Sumitomo Chemical Company LimitedInventors: Keiji Ono, Takashi Takeda, Susumu Miyazaki
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Patent number: 6802990Abstract: A fluorescent substance for vacuum ultraviolet radiation excited light-emitting devices which emits light with a high luminance and is subject to only a small decrease in luminance due to exposure to plasma or the like, and a vacuum ultraviolet radiation excited light-emitting device including the fluorescent substance are provided. The fluorescent substance is represented by the general formula: mM1O·nM2O·2M3O2, wherein M1 is at least one metal selected from the group consisting of Ca, Sr and Ba, M2 is at least one metal selected from the group consisting of Mg and Zn, M3 is at least one metal selected from the group consisting of Si and Ge, and m and n satisfy 0.5≦m≦3.5 and 0.5≦n≦2.5, respectively. Either Eu and Mn can be used as an activator.Type: GrantFiled: September 25, 2001Date of Patent: October 12, 2004Assignee: Sumitomo Chemical Company, LimitedInventors: Kenji Toda, Mineo Sato, Keiji Ono, Susumu Miyazaki, Takashi Takeda