Patents by Inventor Toshihiko Takahata
Toshihiko Takahata 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: 20200083183Abstract: An electronic component includes: a variable capacitance element; a substrate that has the variable capacitance element; a connection pattern that is electrically connected to the variable capacitance element; and a sealing member that has permittivity lower than that of the substrate and has insulation resistance higher than that of the substrate. At least a part of the connection pattern is disposed on an outer surface of the sealing member.Type: ApplicationFiled: September 6, 2019Publication date: March 12, 2020Inventors: Toshihiko TAKAHATA, Hiroo ANAN
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Patent number: 10054609Abstract: A method for manufacturing a semiconductor device includes: preparing a first substrate; forming a metal film having a Ti layer as the most outermost surface on one surface of the first substrate a metal film having a Ti layer as the outermost surface; patterning the metal film to form a first pad portion; preparing a second substrate; forming on one surface of the second substrate a metal film having a Ti layer as the outermost surface; patterning the metal film to form a second pad portion; vacuum annealing the first substrate and the second substrate to remove an oxide film formed on the Ti layer in the first pad portion and the second pad portion; and bonding the first pad portion and the second pad portion together.Type: GrantFiled: February 1, 2016Date of Patent: August 21, 2018Assignee: DENSO CORPORATIONInventors: Toshihiko Takahata, Eiichi Taketani
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Publication number: 20180024159Abstract: A method for manufacturing a semiconductor device includes: preparing a first substrate; forming a metal film having a Ti layer as the most outermost surface on one surface of the first substrate a metal film having a Ti layer as the outermost surface; patterning the metal film to form a first pad portion; preparing a second substrate; forming on one surface of the second substrate a metal film having a Ti layer as the outermost surface; patterning the metal film to form a second pad portion; vacuum annealing the first substrate and the second substrate to remove an oxide film formed on the Ti layer in the first pad portion and the second pad portion; and bonding the first pad portion and the second pad portion together.Type: ApplicationFiled: February 1, 2016Publication date: January 25, 2018Inventors: Toshihiko TAKAHATA, Eiichi TAKETANI
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Patent number: 9753245Abstract: An optical lens device forms a condenser lens having a first lens of a positive focal length and a second lens of a negative focal length. The first and second lenses are stacked with their optical axis aligned. The first lens has a lens section, edge section and glass member having a linear expansion coefficient smaller than that of the lens section and the edge section to suppress shape change of the first lens due to temperature change of the first lens. The second lens, which is stacked with the first lens, is used for offsetting a change of the positive focal length generated in the first lens when the temperature varies. The glass member having a small linear expansion coefficient suppresses that shape change of the first lens which is not compensated by the second lens.Type: GrantFiled: June 26, 2014Date of Patent: September 5, 2017Assignee: DENSO CORPORATIONInventors: Yasuki Furutake, Toshihiko Takahata
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Patent number: 9739675Abstract: A surface acoustic wave (SAW) sensor includes a surface acoustic wave material and a comb-teeth electrode. The surface acoustic wave material is to be arranged at a place where the surface acoustic wave material is distorted by physical quantity such as stress. The comb-teeth electrode is arranged on the surface of the surface acoustic wave material to excite a surface acoustic wave to the surface acoustic wave material. The surface acoustic wave material has a sapphire board and a ScAlN film arranged on a surface of the sapphire board.Type: GrantFiled: May 27, 2015Date of Patent: August 22, 2017Assignees: DENSO CORPORATION, TOHOKU UNIVERSITY, National University Corporation Chiba UniversityInventors: Akihiko Teshigahara, Toshihiko Takahata, Takao Iwaki, Shuji Tanaka, Masayoshi Esashi, Kenya Hashimoto
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Publication number: 20160154201Abstract: An optical lens device forms a condenser lens having a first lens of a positive focal length and a second lens of a negative focal length. The first and second lenses are stacked with their optical axis aligned. The first lens has a lens section, edge section and glass member having a linear expansion coefficient smaller than that of the lens section and the edge section to suppress shape change of the first lens due to temperature change of the first lens. The second lens, which is stacked with the first lens, is used for offsetting a change of the positive focal length generated in the first lens when the temperature varies. The glass member having a small linear expansion coefficient suppresses that shape change of the first lens which is not compensated by the second lens.Type: ApplicationFiled: June 26, 2014Publication date: June 2, 2016Inventors: Yasuki Furutake, Toshihiko Takahata
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Publication number: 20150357551Abstract: A surface acoustic wave (SAW) sensor includes a surface acoustic wave material and a comb-teeth electrode. The surface acoustic wave material is to be arranged at a place where the surface acoustic wave material is distorted by physical quantity such as stress. The comb-teeth electrode is arranged on the surface of the surface acoustic wave material to excite a surface acoustic wave to the surface acoustic wave material. The surface acoustic wave material has a sapphire board and a ScAlN film arranged on a surface of the sapphire board.Type: ApplicationFiled: May 27, 2015Publication date: December 10, 2015Inventors: Akihiko TESHIGAHARA, Toshihiko TAKAHATA, Takao IWAKI, Shuji TANAKA, Masayoshi ESASHI, Kenya HASHIMOTO
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Patent number: 8334158Abstract: In manufacturing a sensor device, a sensor chip having a sensing portion on a surface thereof is mounted on one surface of a substrate, and a resin having a volatile property is arranged on the surface of the sensor chip, thereby covering the surface of the sensor chip. Then, the sensor chip and the substrate are sealed by a sealing member. After that, the sealing member is cured, and the resin is heated to be vaporized so that a void is formed between a covered portion in the surface of the sensor chip, which is covered by the sealing member, and the sealing member.Type: GrantFiled: March 3, 2010Date of Patent: December 18, 2012Assignee: DENSO CORPORATIONInventors: Toshihiko Takahata, Takashige Saito, Masahiro Honda, Shinpei Taga, Haruhisa Koike
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Publication number: 20110139802Abstract: A fuel resistance package includes a member to be sealed, which is used in a fuel atmosphere including an aromatic compound or ethanol, and a sealing member, which seals the member to be sealed so that the member to be sealed is protected from fuel in the fuel atmosphere. The sealing member is made of resin containing glycidyl amine-based epoxy resin having a glass-transition temperature of 180° C. or more and a dielectric constant of 3.5 or less as epoxy resin, an amine-based hardener that ring-opens epoxy groups of the epoxy resin to harden the epoxy resin, and filler made of silica.Type: ApplicationFiled: December 10, 2010Publication date: June 16, 2011Applicant: DENSO CORPORATIONInventors: Toshihiko TAKAHATA, Takashige Saito
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Publication number: 20100224945Abstract: In manufacturing a sensor device, a sensor chip having a sensing portion on a surface thereof is mounted on one surface of a substrate, and a resin having a volatile property is arranged on the surface of the sensor chip, thereby covering the surface of the sensor chip. Then, the sensor chip and the substrate are sealed by a sealing member. After that, the sealing member is cured, and the resin is heated to be vaporized so that a void is formed between a covered portion in the surface of the sensor chip, which is covered by the sealing member, and the sealing member.Type: ApplicationFiled: March 3, 2010Publication date: September 9, 2010Applicant: DENSO CORPORATIONInventors: Toshihiko TAKAHATA, Takashige SAITO, Masahiro HONDA, Shinpei TAGA, Haruhisa KOIKE