Patents by Inventor Yuki Kotaka
Yuki Kotaka 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: 11915883Abstract: An electret includes an electret layer. The electret layer is formed by subjecting a composite film in which inorganic dielectric particles are dispersed and held in a base film to a polarization treatment. The inorganic dielectric particles are mainly composed of an inorganic dielectric material having a bandgap energy of 4 eV or more.Type: GrantFiled: December 9, 2020Date of Patent: February 27, 2024Assignees: DENSO CORPORATION, TOKYO UNIVERSITY OF SCIENCE FOUNDATIONInventors: Noriyuki Matsushita, Yoshihiro Kozawa, Kazuhiko Kanoh, Yumi Tanaka, Hirotoshi Otsuka, Yuki Kotaka
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Patent number: 11564468Abstract: The invention relates to a hair treatment method for treating hair by using a hair treatment tool (1). The hair treatment tool (1) includes: a fiber structure member (5) that retains a hair cosmetic; and a liquid-impermeable sheet (3) to which the fiber structure member (5) is fixed. The fiber structure member (5) retains a hair cosmetic that includes a pigment and a film-forming resin, and is sealed in a packaging (2). The hair treatment method of the invention treats hair by: exposing a surface of the fiber structure member (5) of the hair treatment tool (1); and bringing the fiber structure member (5) into contact with hair, and in this state, moving the fiber structure member (5) in a direction of orientation of the hair.Type: GrantFiled: June 22, 2017Date of Patent: January 31, 2023Assignee: Kao CorporationInventors: Rina Iikubo, Shuichiro Kobaru, Yuki Kotaka, Aguri Maruyama, Kohsuke Kawaguchi
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Publication number: 20210183584Abstract: An electret includes an electret layer. The electret layer is formed by subjecting a composite film in which inorganic dielectric particles are dispersed and held in a base film to a polarization treatment. The inorganic dielectric particles are mainly composed of an inorganic dielectric material having a bandgap energy of 4 eV or more.Type: ApplicationFiled: December 9, 2020Publication date: June 17, 2021Inventors: Noriyuki Matsushita, Yoshihiro Kozawa, Kazuhiko Kanoh, Yumi Tanaka, Hirotoshi Otsuka, Yuki Kotaka
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Publication number: 20190208883Abstract: The invention relates to a hair treatment method for treating hair by using a hair treatment tool (1). The hair treatment tool (1) includes: a fiber structure member (5) that retains a hair cosmetic; and a liquid-impermeable sheet (3) to which the fiber structure member (5) is fixed. The fiber structure member (5) retains a hair cosmetic that includes a pigment and a film-forming resin, and is sealed in a packaging (2). The hair treatment method of the invention treats hair by: exposing a surface of the fiber structure member (5) of the hair treatment tool (1); and bringing the fiber structure member (5) into contact with hair, and in this state, moving the fiber structure member (5) in a direction of orientation of the hair.Type: ApplicationFiled: June 22, 2017Publication date: July 11, 2019Applicant: Kao CorporationInventors: Rina IIKUBO, Shuichiro KOBARU, Yuki KOTAKA, Aguri MARUYAMA, Kohsuke KAWAGUCHI
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Publication number: 20150111383Abstract: A polishing liquid composition for a silicon wafer, wherein the composition comprises silica particles (component A), at least one kind of nitrogen-containing basic compound (component B) selected from an amine compound and an ammonium compound, and a water-soluble macromolecular compound (component C) that contains 10 wt % or more of a constitutional unit I represented by a general formula (1) below and has a weight average molecular weight of 50,000 or more and 1,500,000 or less; and the pH at 25° C. is 8.0 to 12.0. In the general formula (1), R1 and R2 each independently represents a hydrogen, a C1 to C8 alkyl group, or a C1 to C2 hydroxyalkyl group, and R1 and R2 are never both hydrogens.Type: ApplicationFiled: April 16, 2013Publication date: April 23, 2015Applicant: KAO CORPORATIONInventors: Joji Miura, Yoshiaki Matsui, Yuki Kato, Yuki Kotaka
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Patent number: 8692719Abstract: A multiband antenna includes a conductive antenna element portion and a conductive ground element portion which are provided on an insulating film. The antenna element portion includes a first antenna element having a length corresponding to a first resonance frequency, and a second antenna element having a length corresponding to a second resonance frequency. The ground element portion includes a first side having a length to resonate at the first resonance frequency, and a second side having a length to resonate at the second resonance frequency.Type: GrantFiled: March 18, 2010Date of Patent: April 8, 2014Assignee: Casio Computer Co., Ltd.Inventors: Shigeru Yagi, Yuki Kotaka
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Patent number: 8681060Abstract: Disclosed is a multiband antenna, comprising: an antenna element section which is fed from a feeding point; and a ground element section which is connected to a ground of the feeding point; wherein the antenna element section includes: a pole element which includes the feeding point, and has a length at which the pole element resonates at a first frequency; an L-shaped folded-back element which is connected to an end of the pole element, and resonates at a second frequency together with the pole element; and an L-shaped added element which is connected to the pole element; wherein a length from the feeding point to an end of the added element is a length at which the added element resonates at the first frequency.Type: GrantFiled: August 3, 2011Date of Patent: March 25, 2014Assignee: Casio Computer Co., Ltd.Inventor: Yuki Kotaka
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Patent number: 8400364Abstract: Disclosed is a multiband planar antenna including: an insulating film, a first antenna section and a second antenna section facing to the first antenna section across a feeding point on a film, wherein the first antenna section includes: a first antenna element including a side having a length in an extending direction corresponds to a first resonance frequency; a shorter second antenna element at a predetermined distance from and in parallel with the first antenna element; and a first coupling section to couple the first and second antenna elements, wherein a length in the extending direction of a first clearance corresponds to a resonance frequency higher than the first resonance frequency, and wherein the second antenna section includes: third and fourth antenna elements; a second coupling section; and a second clearance similar to the above.Type: GrantFiled: May 10, 2010Date of Patent: March 19, 2013Assignee: Casio Computer Co., Ltd.Inventors: Yuki Kotaka, Shigeru Yagi
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Publication number: 20120038535Abstract: Disclosed is a multiband antenna, comprising: an antenna element section which is fed from a feeding point; and a ground element section which is connected to a ground of the feeding point; wherein the antenna element section includes: a pole element which includes the feeding point, and has a length at which the pole element resonates at a first frequency; an L-shaped folded-back element which is connected to an end of the pole element, and resonates at a second frequency together with the pole element; and an L-shaped added element which is connected to the pole element; wherein a length from the feeding point to an end of the added element is a length at which the added element resonates at the first frequency.Type: ApplicationFiled: August 3, 2011Publication date: February 16, 2012Applicant: CASIO COMPUTER CO., LTD.Inventor: Yuki KOTAKA
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Patent number: 8111200Abstract: Disclosed is a planar antenna, including: a film formed of a planar insulating material; an antenna portion which is a planar conductor on the film; and a ground portion which is a conductor to be grounded, wherein the antenna portion comprises: at least one first short stub; a first antenna element which is connected to the ground portion through the at least one first short stub and whose shape has such an angle that a distance between the first antenna element and the ground portion increases with increasing distance from a feeding point along the ground portion, the feeding point being provided between the first antenna element and the ground portion; a second short stub; and a second antenna element which is connected to the first antenna element through the second short stub.Type: GrantFiled: May 28, 2009Date of Patent: February 7, 2012Assignee: Casio Computer Co., Ltd.Inventors: Shigeru Yagi, Yuki Kotaka, Fuminori Sano
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Publication number: 20120013510Abstract: A multiband antenna includes a conductive antenna element portion and a conductive ground element portion which are provided on an insulating film. The antenna element portion includes a first antenna element having a length corresponding to a first resonance frequency, and a second antenna element having a length corresponding to a second resonance frequency. The ground element portion includes a first side having a length to resonate at the first resonance frequency, and a second side having a length to resonate at the second resonance frequency.Type: ApplicationFiled: March 18, 2010Publication date: January 19, 2012Applicant: Casio Computer Co., Ltd.Inventors: Shigeru Yagi, Yuki Kotaka
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Publication number: 20100302111Abstract: Disclosed is a multiband planar antenna including: an insulating film, a first antenna section and a second antenna section facing to the first antenna section across a feeding point on a film, wherein the first antenna section includes: a first antenna element including a side having a length in an extending direction corresponds to a first resonance frequency; a shorter second antenna element at a predetermined distance from and in parallel with the first antenna element; and a first coupling section to couple the first and second antenna elements, wherein a length in the extending direction of a first clearance corresponds to a resonance frequency higher than the first resonance frequency, and wherein the second antenna section includes: third and fourth antenna elements; a second coupling section; and a second clearance similar to the above.Type: ApplicationFiled: May 10, 2010Publication date: December 2, 2010Applicant: Casio Computer Co., Ltd.Inventors: Yuki KOTAKA, Shigeru Yagi
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Publication number: 20090295652Abstract: Disclosed is a planar antenna, including: a film formed of a planar insulating material; an antenna portion which is a planar conductor on the film; and a ground portion which is a conductor to be grounded, wherein the antenna portion comprises: at least one first short stub; a first antenna element which is connected to the ground portion through the at least one first short stub and whose shape has such an angle that a distance between the first antenna element and the ground portion increases with increasing distance from a feeding point along the ground portion, the feeding point being provided between the first antenna element and the ground portion; a second short stub; and a second antenna element which is connected to the first antenna element through the second short stub.Type: ApplicationFiled: May 28, 2009Publication date: December 3, 2009Applicant: Casio Computer Co., Ltd.Inventors: Shigeru Yagi, Yuki Kotaka, Fuminori Sano