Patents by Inventor Takahiro Sakaguchi
Takahiro Sakaguchi 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: 8993699Abstract: There is provided a photosensitive resin composition for a microlens. A photosensitive resin composition for a microlens, comprising a component (A), a component (B) and a component (C), wherein the component (A) is a polymer having a maleimide structural unit of Formula (1), the component (B) is a cross-linking agent, and the component (C) is a photosensitizing agent.Type: GrantFiled: June 21, 2010Date of Patent: March 31, 2015Assignee: Nissan Chemical Industries, Ltd.Inventors: Takahiro Kishioka, Takahiro Sakaguchi
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Publication number: 20150050593Abstract: There is provided a photosensitive resin composition. A photosensitive resin composition including a component (A), a component (B); and a solvent, wherein the component (A) is a copolymer having a structural unit of Formula (1) and a structural unit of Formula (2): (where R0 is a hydroxy group or a carboxy group; R1 is a hydrogen atom or a methyl group; R2 is a single bond or a C1-5 alkylene group; R3 is a thermally cross-linkable monovalent organic group; and in a plurality of structural units of Formula (2), R1 are optionally different from each other), and the component (B) is a photosensitizer.Type: ApplicationFiled: March 15, 2013Publication date: February 19, 2015Inventors: Isao Adachi, Takahiro Sakaguchi, Hiroyuki Soda
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Patent number: 8940470Abstract: A material for a microlens having heat resistance, high resolution and high light-extraction efficiency is provided. A positive resist composition comprises an alkali-soluble polymer containing a unit structure having an aromatic fused ring or a derivative thereof, and a compound having an organic group which undergoes photodecomposition to yield an alkali-soluble group. The positive resist composition has coating film properties of a refractive index at a wavelength of 633 nm of 1.6 or more and a transmittance at wavelengths of 400 to 730 nm of 80% or more. A pattern forming method comprises applying the positive resist composition, drying the composition, exposing the composition to light, and developing the composition.Type: GrantFiled: May 14, 2008Date of Patent: January 27, 2015Assignee: Nissan Chemical Industries, Inc.Inventors: Takayuki Negi, Takahiro Sakaguchi, Takahiro Kishioka
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Publication number: 20140376809Abstract: An image processing apparatus includes a depth control signal generation unit generating a depth control signal controlling emphasis of the feel of each region of an input image based on the depth position of a subject in each region of the input image; a face skin region control signal generation unit generating a face skin region control signal controlling emphasis of the feel of each region in the input image based on the human face skin region in the input image; a person region control signal generation unit generating a person region control signal controlling emphasis of the feel of each region in the input image based on the region of the person in the input image; and a control signal synthesis unit synthesizing the depth control signal, the face skin region control signal, and the person region control signal to generate a control signal.Type: ApplicationFiled: September 3, 2014Publication date: December 25, 2014Inventors: Kazuki YOKOYAMA, Takahiro SAKAGUCHI, Mayuko MARUYAMA
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Patent number: 8867824Abstract: An image processing apparatus includes a depth control signal generation unit generating a depth control signal controlling emphasis of the feel of each region of an input image based on the depth position of a subject in each region of the input image; a face skin region control signal generation unit generating a face skin region control signal controlling emphasis of the feel of each region in the input image based on the human face skin region in the input image; a person region control signal generation unit generating a person region control signal controlling emphasis of the feel of each region in the input image based on the region of the person in the input image; and a control signal synthesis unit synthesizing the depth control signal, the face skin region control signal, and the person region control signal to generate a control signal.Type: GrantFiled: February 29, 2012Date of Patent: October 21, 2014Assignee: Sony CorporationInventors: Kazuki Yokoyama, Takahiro Sakaguchi, Mayuko Maruyama
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Patent number: 8796349Abstract: There is provided a photosensitive resin composition for microlenses. A photosensitive resin composition for microlenses including a component (A), a component (B) and a solvent. The component (A): a copolymer having a maleimide structural unit of Formula (1) and a repeating structural unit of Formula (2). The component (B): a photosensitizer (in Formula (2), R0 is a hydrogen atom or a methyl group; R1 is a single bond or a C1-5 alkylene group; R2 is a thermally cross-linkable monovalent organic group; and in the repeating structural unit of Formula (2), R0s are optionally different from each other).Type: GrantFiled: November 21, 2011Date of Patent: August 5, 2014Assignee: Nissan Chemical Industries, Ltd.Inventors: Hiroyuki Soda, Takahiro Sakaguchi, Takahiro Kishioka
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Publication number: 20140200304Abstract: There is provided a resin composition. A resin composition includes: a copolymer having structural units of the following Formula (1), Formula (2) and Formula (3): where X is a C1-5 alkyl group, a C5-6 cycloalkyl group, a phenyl group or a benzyl group, while the alkyl group, the cycloalkyl group, the phenyl group and the benzyl group optionally have a portion or all of the hydrogen atoms substituted with halogen atoms, carboxy groups, hydroxy groups, amino groups or nitro groups; each of R1s is independently a hydrogen atom or a methyl group; R2 is a single bond or a C1-5 alkylene group; R3 is a blocked isocyanate group; Y is an —O— group or an —NH— group; R4 is a single bond or a C1-5 alkylene group; and R5 is a C1-20 hydrocarbon group or a phenyl group having a hydroxy group as a substituent; and a solvent.Type: ApplicationFiled: August 27, 2012Publication date: July 17, 2014Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Hiroyuki Soda, Takahiro Sakaguchi
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Patent number: 8766158Abstract: A production method of a solid-state imaging device in which microlenses are arranged adjacent to each other on a substrate, includes: a first process of forming first microlenses on a surface of the substrate leaving space therebetween for providing second microlenses; and a second process of applying an overcoating material onto the surface of the substrate on which the first microlenses are formed, drying the overcoating material, exposing the overcoating material to light using a gray scale mask, and developing the exposed overcoating material, so as to form second microlenses in the space between the first microlenses adjacent to each other.Type: GrantFiled: January 20, 2011Date of Patent: July 1, 2014Assignee: Nissan Chemical Industries, Ltd.Inventors: Shinya Arase, Takahiro Sakaguchi
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Publication number: 20140135426Abstract: There is provided a resin composition including a copolymer having structural units of Formula (1), Formula (2), and Formula (3), and a solvent; or a resin composition including a copolymer having structural units of Formula (1), Formula (4), and Formula (5), and a solvent.Type: ApplicationFiled: June 27, 2012Publication date: May 15, 2014Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventor: Takahiro Sakaguchi
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Publication number: 20140119607Abstract: An image processing apparatus includes: a data processing section which processes input image data and obtains output image data; a face detecting section which detects a face image on the basis of the input image data and obtains information about a face image region in which the face image exists; and a processing controller which controls the process of the data processing section on the basis of the information about the face image region obtained in the face detecting section.Type: ApplicationFiled: January 8, 2014Publication date: May 1, 2014Applicant: SONY CORPORATIONInventors: KAZUKI YOKOYAMA, TAKAHIRO SAKAGUCHI, TOMOICHI FUJISAWA, MASAYUKI TSUMURA, MITSUHARU HOSHINO
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Patent number: 8709701Abstract: There is provided a resist underlayer film forming composition for lithography, which in order to prevent a resist pattern from collapsing after development in accordance with the miniaturization of the resist pattern, is applied to multilayer film process by a thin film resist, has a lower dry etching rate than resists and semiconductor substrates, and has a satisfactory etching resistance relative to a substrate to be processed in the processing of the substrate. A resist underlayer film forming composition used in lithography process by a multiplayer film, comprises a polymer containing a unit structure having an aromatic fused ring, a unit structure having a protected carboxyl group or a unit structure having an oxy ring. A method of forming a pattern by use of the resist underlayer film forming composition. A method of manufacturing a semiconductor device by utilizing the method of forming a pattern.Type: GrantFiled: April 26, 2011Date of Patent: April 29, 2014Assignee: Nissan Chemical Industries, Ltd.Inventors: Takahiro Sakaguchi, Tomoyuki Enomoto, Tetsuya Shinjo
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Patent number: 8658342Abstract: A material for a planarization film, a spacer, and a microlens that satisfies heat resistance and transparency requirements without impairing a refractive index. A negative photosensitive composition includes a photopolymerizable polymer (A) having a fluorene skeleton, a monomer (B) having a fluorene skeleton and a photopolymerization initiator (C). The photopolymerizable polymer (A) having a fluorene skeleton may include a moiety that is soluble in an alkaline developer solution, or a unit structure of Formula (1): herein each R1 is independently a C1-10 alkyl group or a halogen atom; each L is an integer of 0 to 4; X is an organic group having an unsaturated bond at a terminal thereof; and Y is a linking group including a portion that is obtained by removing an acid radical from a tetracarboxylic dianhydride.Type: GrantFiled: April 20, 2010Date of Patent: February 25, 2014Assignee: Nissan Chemicals Industries, Ltd.Inventors: Hiroyuki Soda, Takahiro Sakaguchi, Shojiro Yukawa
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Patent number: 8660320Abstract: An image processing apparatus includes: a data processing section which processes input image data and obtains output image data; a face detecting section which detects a face image on the basis of the input image data and obtains information about a face image region in which the face image exists; and a processing controller which controls the process of the data processing section on the basis of the information about the face image region obtained in the face detecting section.Type: GrantFiled: August 26, 2010Date of Patent: February 25, 2014Assignee: Sony CorporationInventors: Kazuki Yokoyama, Takahiro Sakaguchi, Tomoichi Fujisawa, Masayuki Tsumura, Mitsuharu Hoshino
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Patent number: 8610385Abstract: A motor driving circuit includes an inverter circuit which supplies a driving current to a coil of a single phase brushless DC motor, a position detection sensor which detects a magnetic pole position of a magnet rotor of the motor and outputs a position detection signal, and a controller which controls the inverter circuit based on the position detection signal and a speed instruction signal for instructing a rotating speed of the motor. At a time of startup of the motor, the controller makes a pulse width of a PWM signal for controlling the inverter circuit constant in a first time period which starts after the position detection signal zero-crosses and lasts until the position detection signal zero-crosses next time, and narrows the pulse width of the PWM signal as time elapses in a second time period immediately after the first time period.Type: GrantFiled: February 14, 2012Date of Patent: December 17, 2013Assignee: Minebea Co., Ltd.Inventor: Takahiro Sakaguchi
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Patent number: 8603731Abstract: There is provided a resist underlayer film forming composition for an electron beam lithography that is used in a device production process using electron beam lithography and is effective for reducing adverse effects caused by an electron beam to obtain a favorable resist pattern, and a method of forming a resist pattern using the resist underlayer film forming composition for electron beam lithography. The resist underlayer film forming composition for an electron beam lithography comprises a polymer compound having a repeating unit structure that contains a halogen atom, and a solvent, and the composition is applied in a form of film between a film to be processed for forming a transferring pattern on a substrate and a resist film for an electron beam lithography, and used for manufacturing a semiconductor device. The polymer compound preferably contains at least 10% by mass of a halogen atom.Type: GrantFiled: February 19, 2008Date of Patent: December 10, 2013Assignee: Nissan Chemical Industries, Ltd.Inventors: Tomoyuki Enomoto, Takahiro Sakaguchi, Rikimaru Sakamoto, Masaki Nagai
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Publication number: 20130310480Abstract: There is provided a photosensitive resin composition for forming a microlens. A photosensitive resin composition for forming a microlens, the photosensitive resin composition comprising: a component (A), a component (B), a component (C) and a solvent. The component (A) is a copolymer having a maleimide structural unit of formula (1) below, a vinyl ether structural unit of formula (2) below, and at least one of the three structural units of formula (3), formula (4), and formula (5) below, the component (B) is a photosensitizer, and the component (C) is a cross-linking agent (where X is a C1-20 hydrocarbon group that optionally has an ether bond or a cyclic structure; Y is an organic group that optionally has a substituent; and Z is an aromatic hydrocarbon group or an alkoxy group that optionally has a substituent).Type: ApplicationFiled: January 12, 2012Publication date: November 21, 2013Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventor: Takahiro Sakaguchi
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Publication number: 20130300249Abstract: A single-phase brushless motor has both superior start-up stability and low cogging torque. In the outer-rotor-type single-phase brushless motor, when a gap width between the rotor and one edge of the salient pole surface is defined as d1, a gap width between the rotor and the other edge of the salient pole surface is defined as d2, and a minimum gap width between the rotor and the salient pole surface is defined as d3, the formula d3<d1<d2 is satisfied, and the gap width is d3 at a position shifted toward the one edge of the salient pole surface from the center of the arc shape which forms the salient pole surface.Type: ApplicationFiled: April 26, 2013Publication date: November 14, 2013Applicant: MINEBEA CO., LTD.Inventors: Yuji OMURA, Tomoaki NAKANO, Masaaki NISHIZAWA, Takahiro SAKAGUCHI, Shinichi UCHIKAWA, Tomoyuki TSUKADA
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Publication number: 20130245152Abstract: There is provided a photosensitive resin composition for microlenses. A photosensitive resin composition for microlenses including a component (A), a component (B) and a solvent. The component (A): a copolymer having a maleimide structural unit of Formula (1) and a repeating structural unit of Formula (2). The component (B): a photosensitizer (in Formula (2), R0 is a hydrogen atom or a methyl group; R1 is a single bond or a C1-5 alkylene group; R2 is a thermally cross-linkable monovalent organic group; and in the repeating structural unit of Formula (2), R0s are optionally different from each other).Type: ApplicationFiled: November 21, 2011Publication date: September 19, 2013Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Hiroyuki Soda, Takahiro Sakaguchi, Takahiro Kishioka
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Patent number: 8497654Abstract: There is provided a single-phase AC synchronized motor that does not need smooth of rectifier waves but stably performs shift from a starting operation to a synchronized operation. In the motor, based on detected signals of a position sensor, rectified current is reciprocally flowed to each direction of a single-phase coil which starts the motor. The motor includes a start-up operation circuit with a sensor starting period that increases a rotational speed until reaching to a first predetermined rotational speed; and a control device that controls operation of the motor as that shift to synchronized operation is performed when a rotational speed of a permanent magnetic rotor is reached to a second predetermined rotational speed nearby a synchronized rotational speed but not exceeding the synchronized rotational speed, and when the rise and fall of detected signals of the position sensor and the zero-cross point of AC current are approximately correspondent to each other.Type: GrantFiled: May 11, 2011Date of Patent: July 30, 2013Assignee: Minebea Co., Ltd.Inventors: Takahiro Sakaguchi, Masahiro Kobayashi
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Patent number: 8480777Abstract: An extension piece portion is provided at a lower end portion of a screen plate so as to extend from the lower end portion, beyond a gas-passing through hole, to an oil pocket portion. An oil guide portion is provided at respective gas-hitting-side face portions of the screen plate and the extension piece portion so as to guide oil trapped at the above-described face portions into the oil pocket portion. Accordingly, it can be prevented that part of the oil in the middle of dropping down into the oil pocket portion from the screen plate is carried away by the gas flow passing through the gas-passing through hole, so that the efficiency of oil trap can be improved.Type: GrantFiled: June 16, 2011Date of Patent: July 9, 2013Assignee: Mazda Motor CorporationInventors: Takahiro Sakaguchi, Shigemi Okada, Tokio Kagawa, Jun Yamane, Naoki Suizu, Suguru Fukui, Toshinobu Mori, Yusuke Nakata, Takashi Fukui