Patents by Inventor Nobuaki Yamada
Nobuaki Yamada 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: 11940347Abstract: A pressure sensor has a stem in which a pressure introduction hole into which a pressure medium is introduced and a diaphragm deformable according to the pressure of the pressure medium are formed, and a strain detecting element which is arranged on the diaphragm via an insulating film and being configured to output a detection signal according to the deformation of the diaphragm. The strain detecting element is configured to have a portion made of polysilicon. A low doping layer having a higher electrical resistivity than polysilicon and a higher crystallinity than the insulating film is arranged between the insulating film and the strain detecting element.Type: GrantFiled: October 22, 2021Date of Patent: March 26, 2024Assignees: DENSO CORPORATION, NAGANO KEIKI CO., LTD.Inventors: Hiroshi Kodama, Naoki Yoshida, Kaori Miyashita, Eiji Takeda, Nobuaki Yamada, Yoshihiro Tomomatsu, Yasushi Yanagisawa, Yusuke Midorikawa, Shirou Kamanaru, Kenichi Yokoyama, Inao Toyoda, Hisayuki Takeuchi, Naohisa Niimi, Masao Takahashi, Yasutake Ura, Kouji Asano, Yukihiro Kamada
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Patent number: 11736054Abstract: There is provided a control device for an electric motor. The control device includes an inverter circuit and a control circuit. In a control cycle of the electric motor, the control cycle includes first to third sections. The control circuit outputs a first modulated wave in accordance with an output of the electric motor and outputs a minimum value or maximum value of a carrier wave as second and third modulated waves in the first section with a peak of first alternate-current voltage, and outputs the second modulated wave in accordance with an output of the electric motor and outputs the minimum value or maximum value of the carrier wave as the first and third modulated waves in the second section with a peak of second alternate-current voltage. The same output is applied in the third section with a peak of third alternate-current voltage.Type: GrantFiled: June 22, 2020Date of Patent: August 22, 2023Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Kazuki Yamane, Nobuaki Yamada, Masamichi Nawa
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Publication number: 20220263448Abstract: There is provided a control device for an electric motor. The control device includes an inverter circuit and a control circuit. In a control cycle of the electric motor, the control cycle includes first to third sections. The control circuit outputs a first modulated wave in accordance with an output of the electric motor and outputs a minimum value or maximum value of a carrier wave as second and third modulated waves in the first section with a peak of first alternate-current voltage, and outputs the second modulated wave in accordance with an output of the electric motor and outputs the minimum value or maximum value of the carrier wave as the first and third modulated waves in the second section with a peak of second alternate-current voltage. The same output is applied in the third section with a peak of third alternate-current voltage.Type: ApplicationFiled: June 22, 2020Publication date: August 18, 2022Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Kazuki YAMANE, Nobuaki YAMADA, Masamichi NAWA
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Publication number: 20220042868Abstract: A pressure sensor has a stem in which a pressure introduction hole into which a pressure medium is introduced and a diaphragm deformable according to the pressure of the pressure medium are formed, and a strain detecting element which is arranged on the diaphragm via an insulating film and being configured to output a detection signal according to the deformation of the diaphragm. The strain detecting element is configured to have a portion made of polysilicon. A low doping layer having a higher electrical resistivity than polysilicon and a higher crystallinity than the insulating film is arranged between the insulating film and the strain detecting element.Type: ApplicationFiled: October 22, 2021Publication date: February 10, 2022Inventors: Hiroshi KODAMA, Naoki YOSHIDA, Kaori MIYASHITA, Eiji TAKEDA, Nobuaki YAMADA, Yoshihiro TOMOMATSU, Yasushi YANAGISAWA, Yusuke MIDORIKAWA, Shirou KAMANARU, Kenichi YOKOYAMA, Inao TOYODA, Hisayuki TAKEUCHI, Naohisa NIIMI, Masao TAKAHASHI, Yasutake URA, Kouji ASANO, Yukihiro KAMADA
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Patent number: 10967663Abstract: A printing intaglio (100A), (100B) is a printing intaglio for use in intaglio printing, the printing intaglio having a surface which has a plurality of first recessed portions (12) that form a pattern to be printed, wherein at least one of the plurality of first recessed portions has a plurality of minute recessed portions (16p) inside the first recessed portion, and when viewed in a direction normal to the surface of the printing intaglio, a two-dimensional size of the plurality of minute recessed portions is not less than 10 nm and less than 500 nm.Type: GrantFiled: December 16, 2016Date of Patent: April 6, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Nobuaki Yamada, Kenichiro Nakamatsu, Hidekazu Hayashi
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Patent number: 10947411Abstract: The optical member of the present invention includes a substrate and a polymer layer that is in direct contact with the substrate and includes on a surface thereof an uneven structure provided with multiple projections at a pitch not longer than a wavelength of visible light, the polymer layer containing an amide group, the polymer layer having an amide group concentration of 2 mmol/g or higher and lower than 5 mmol/g, the polymer layer having a minimum storage modulus E? of 1×108 Pa or higher and 1×109 Pa or lower at a bottom temperature of 110° C. or higher and 210° C. or lower in a dynamic viscoelasticity measurement with a measurement temperature range of ?50° C. to 250° C., a temperature rise rate of 5° C./min, and a frequency of 10 Hz.Type: GrantFiled: December 8, 2016Date of Patent: March 16, 2021Assignee: SHARP KABUSHIKI KAISHAInventors: Yasuhiro Shibai, Ken Atsumo, Hidekazu Hayashi, Nobuaki Yamada
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Publication number: 20200263055Abstract: The optical member of the present invention includes a substrate and a polymer layer that is in direct contact with the substrate and includes on a surface thereof an uneven structure provided with multiple projections at a pitch not longer than a wavelength of visible light, the polymer layer containing an amide group, the polymer layer having an amide group concentration of 2 mmol/g or higher and lower than 5 mmol/g, the polymer layer having a minimum storage modulus E? of 1×108 Pa or higher and 1×109 Pa or lower at a bottom temperature of 110° C. or higher and 210° C. or lower in a dynamic viscoelasticity measurement with a measurement temperature range of ?50° C. to 250° C., a temperature rise rate of 5° C./min, and a frequency of 10 Hz.Type: ApplicationFiled: December 8, 2016Publication date: August 20, 2020Inventors: YASUHIRO SHIBAI, KEN ATSUMO, HIDEKAZU HAYASHI, NOBUAKI YAMADA
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Patent number: 10695955Abstract: A manufacturing method of a mold, the mold having at its surface a plurality of recessed portions whose two-dimensional size is not less than 10 nm and less than 500 nm when viewed in a direction normal to the surface, the method comprising: (a) providing a mold base (10); (b) partially anodizing the aluminum alloy layer (18), thereby forming a porous alumina layer (14) which has a plurality of minute recessed portions (14p); (c) bringing the porous alumina layer into contact with an etching solution, thereby enlarging the plurality of minute recessed portions; (d) detecting a protrusion (210) formed at a surface of the porous alumina layer or the mold base; (e) determining whether or not a height of the detected protrusion is greater than a predetermined height; and (f) if it is determined at step (e) that the height of the protrusion is greater, irradiating the protrusion with laser light such that the height of the protrusion becomes smaller than the predetermined height.Type: GrantFiled: October 30, 2015Date of Patent: June 30, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Nobuaki Yamada, Hidekazu Hayashi, Miho Yamada
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Patent number: 10675788Abstract: A manufacturing method of a mold, the mold having at its surface a plurality of recessed portions whose two-dimensional size is not less than 10 nm and less than 500 nm when viewed in a direction normal to the surface, the method including: (a) providing a mold base, (b) partially anodizing an aluminum alloy layer, thereby forming a porous alumina layer which has a plurality of minute recessed portions; and (c) after step (b), bringing the porous alumina layer into contact with a first etching solution, thereby enlarging the plurality of minute recessed portions of the porous alumina layer. Step (a) of providing the mold base includes (a1) providing a metal base, (a2) forming an aluminum alloy layer on the metal base, and (a3) forming a surface protection layer on the aluminum alloy layer. Step (a2) and step (a3) are performed in a same chamber.Type: GrantFiled: November 6, 2015Date of Patent: June 9, 2020Assignees: SHARP KABUSHIKI KAISHA, GEOMATEC CO., LTD.Inventors: Nobuaki Yamada, Kiyoshi Minoura, Miho Yamada, Hidekazu Hayashi, Takashi Satoh, Hiroyuki Sugawara
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Patent number: 10625489Abstract: The present invention provides an optical member excellent in antifouling properties, rubbing resistance, and antifog properties. The optical member of the present invention includes, on a surface thereof, an uneven structure provided with multiple projections at a pitch not longer than a wavelength of visible light, the projections each including a hydrophilic portion at its tip. Preferably, each of the projections is formed from a hydrophobic resin and has its tip covered with a hydrophilic material, the hydrophilic material contains silicon dioxide, and the hydrophilic material has a thickness of 30 nm or smaller.Type: GrantFiled: December 21, 2016Date of Patent: April 21, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Hidekazu Hayashi, Tokio Taguchi, Nobuaki Yamada
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Patent number: 10486408Abstract: The present invention provides a film application method that can prevent entry of foreign substances and air bubbles between the film and the application target even when the film is applied in a general environment in which foreign substances such as dust are floating.Type: GrantFiled: June 8, 2016Date of Patent: November 26, 2019Assignee: SHARP KABUSHIKI KAISHAInventor: Nobuaki Yamada
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Patent number: 10471692Abstract: The present invention provides an optical member with which degradation of adhesion between a substrate containing triacetylcellulose and a polymer layer caused by moisture absorption is suppressed. An optical member according to the present invention includes a substrate and a polymer layer in direct contact with the substrate and having an indented structure on a surface thereof, the indented structure including multiple protrusions formed at a pitch not greater than a wavelength of visible light. Triacetylcellulose is present in at least a surface of the substrate on the polymer layer side, the polymer layer is formed from a polymerizable composition polymerizable by active energy ray irradiation, and the polymerizable composition contains 30 parts by weight or more and 75 parts by weight or less of a polyfunctional acrylate, 25 parts by weight or more and 60 parts by weight or less of a monofunctional monomer having a tertiary amide group, and 0.Type: GrantFiled: August 1, 2016Date of Patent: November 12, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Yasuhiro Shibai, Ken Atsumo, Hidekazu Hayashi, Nobuaki Yamada
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Patent number: 10414108Abstract: A method for producing an optical film includes: (1) applying a lower layer resin and an upper layer resin; (2) forming a resin layer having the uneven structure on a surface thereof by pressing a mold against the lower layer resin and the upper layer resin from the upper layer resin side in the state where the applied lower layer resin and upper layer resin are stacked; and (3) curing the resin layer, the lower layer resin containing at least one kind of first monomer that contains no fluorine atoms, the upper layer resin containing a fluorine-containing monomer and at least one kind of second monomer that contains no fluorine atoms, at least one of the first monomer and the second monomer containing a compatible monomer that is compatible with the fluorine-containing monomer and being dissolved in the lower layer resin and the upper layer resin.Type: GrantFiled: February 10, 2016Date of Patent: September 17, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Hidekazu Hayashi, Tokio Taguchi, Nobuaki Yamada, Yasuhiro Shibai, Atsushi Niinoh, Kenichiro Nakamatsu
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Publication number: 20190152244Abstract: A printing intaglio (100A), (100B) is a printing intaglio for use in intaglio printing, the printing intaglio having a surface which has a plurality of first recessed portions (12) that form a pattern to be printed, wherein at least one of the plurality of first recessed portions has a plurality of minute recessed portions (16p) inside the first recessed portion, and when viewed in a direction normal to the surface of the printing intaglio, a two-dimensional size of the plurality of minute recessed portions is not less than 10 nm and less than 500 nm.Type: ApplicationFiled: December 16, 2016Publication date: May 23, 2019Inventors: NOBUAKI YAMADA, KENICHIRO NAKAMATSU, HIDEKAZU HAYASHI
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Patent number: 10224126Abstract: The present invention provides a transparent conductor that is excellent in conductivity, transparency, and low-reflection property and does not cause defects such as a moiré pattern; and a touch panel including the transparent conductor. The transparent conductor of the present invention includes an anti-reflection film provided on a surface with projections formed at a pitch equal to or shorter than the wavelength of visible light; and metal fine particles each having a particle size equal to or smaller than the pitch of the projections and being placed in bottom portions of gaps between the projections, the metal fine particles placed in the gaps between the projections constituting mesh conductive portions. The touch panel of the present invention includes the above transparent conductor.Type: GrantFiled: September 30, 2015Date of Patent: March 5, 2019Assignee: SHARP KABUSHIKI KAISHAInventors: Nobuaki Yamada, Kenichiro Nakamatsu
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Publication number: 20190016084Abstract: The present invention provides an optical member excellent in antifouling properties, rubbing resistance, and antifog properties. The optical member of the present invention includes, on a surface thereof, an uneven structure provided with multiple projections at a pitch not longer than a wavelength of visible light, the projections each including a hydrophilic portion at its tip. Preferably, each of the projections is formed from a hydrophobic resin and has its tip covered with a hydrophilic material, the hydrophilic material contains silicon dioxide, and the hydrophilic material has a thickness of 30 nm or smaller.Type: ApplicationFiled: December 21, 2016Publication date: January 17, 2019Inventors: HIDEKAZU HAYASHI, TOKIO TAGUCHI, NOBUAKI YAMADA
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Publication number: 20180326624Abstract: A manufacturing method of a mold, the mold having at its surface a plurality of recessed portions whose two-dimensional size is not less than 10 nm and less than 500 nm when viewed in a direction normal to the surface, the method including: (a) providing a mold base, (b) partially anodizing an aluminum alloy layer, thereby forming a porous alumina layer which has a plurality of minute recessed portions; and (c) after step (b), bringing the porous alumina layer into contact with a first etching solution, thereby enlarging the plurality of minute recessed portions of the porous alumina layer. Step (a) of providing the mold base includes (a1) providing a metal base, (a2) forming an aluminum alloy layer on the metal base, and (a3) forming a surface protection layer on the aluminum alloy layer. Step (a2) and step (a3) are performed in a same chamber.Type: ApplicationFiled: November 6, 2015Publication date: November 15, 2018Applicant: Sharp Kabushiki KaishaInventor: Nobuaki YAMADA
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Patent number: 10105930Abstract: A laminated film can be easily used by general users and can prevent entry of foreign substances and air bubbles between the attached surfaces even when the film is manually attached in a typical room environment in which foreign substances such as dust are floating. A film attachment method using such a laminated film is also disclosed. In an embodiment, the laminated film includes: a first surface protective film; a foreign-substance-removing adhesive layer; a foreign-substance-removing film; an integrating adhesive layer; a second surface protective film; a substrate-attaching adhesive layer; and a functional film, the substrate-attaching adhesive layer exhibiting a higher bond strength with the functional film than with the second surface protective film.Type: GrantFiled: February 18, 2015Date of Patent: October 23, 2018Assignee: SHARP KABUSHIKI KAISHAInventor: Nobuaki Yamada
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Publication number: 20180281238Abstract: A manufacturing method of a mold, the mold having at its surface a plurality of recessed portions whose two-dimensional size is not less than 10 nm and less than 500 nm when viewed in a direction normal to the surface, the method comprising: (a) providing a mold base (10); (b) partially anodizing the aluminum alloy layer (18), thereby forming a porous alumina layer (14) which has a plurality of minute recessed portions (14p); (c) bringing the porous alumina layer into contact with an etching solution, thereby enlarging the plurality of minute recessed portions; (d) detecting a protrusion (210) formed at a surface of the porous alumina layer or the mold base; (e) determining whether or not a height of the detected protrusion is greater than a predetermined height; and (f) if it is determined at step (e) that the height of the protrusion is greater, irradiating the protrusion with laser light such that the height of the protrusion becomes smaller than the predetermined height.Type: ApplicationFiled: October 30, 2015Publication date: October 4, 2018Inventors: NOBUAKI YAMADA, HIDEKAZU HAYASHI, MIHO YAMADA
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Patent number: 10046543Abstract: The present invention provides a laminated film that can be easily used by general users and can prevent entry of foreign substances and air bubbles between the attached surfaces even when the film is manually attached in a typical room environment in which foreign substances such as dust are floating; and a film attachment method using such a laminated film. The laminated film includes in the following order: a surface protective film; a foreign-substance-removing adhesive layer; a foreign-substance-removing film; a substrate-attaching adhesive layer; and a functional film, the substrate-attaching adhesive layer exhibiting a higher bond strength with the functional film than with the foreign-substance-removing film.Type: GrantFiled: February 18, 2015Date of Patent: August 14, 2018Assignee: SHARP KABUSHIKI KAISHAInventor: Nobuaki Yamada