Patents by Inventor Keita Nakanishi
Keita Nakanishi 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: 20240111335Abstract: A tape member of an electronic apparatus includes: double-sided adhesive tape having a releasable property by stretching; and a sheet-shaped handle member connected to the double-sided adhesive tape, a user holding the handle member when stretch-releasing the double-sided adhesive tape. The handle member is wound around the double-sided adhesive tape in a direction intersecting the longitudinal direction of the double-sided adhesive tape.Type: ApplicationFiled: August 2, 2023Publication date: April 4, 2024Applicant: LENOVO (SINGAPORE) PTE. LTD.Inventors: So Nakanishi, Satoshi Hosoya, Takehito Yamauchi, Keita Ishikawa
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Publication number: 20220190739Abstract: A power conversion apparatus includes a power conversion circuit including a semiconductor element in each of upper and lower arms between DC links, and being electrically connected to an AC load at an AC end. A voltage detector detects a voltage between the DC links. A current detector detects a current flowing in the AC end. A control unit generates a gate command based on a voltage value obtained by the voltage detector and a current value obtained by the current detector. A gate driver drives the semiconductor element based on the gate command, includes a gate current detector and a circuit to determine a drive state of the semiconductor element from the gate current, and outputs a value corresponding to the drive state to the control unit.Type: ApplicationFiled: September 15, 2021Publication date: June 16, 2022Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions CorporationInventors: Takashi TAKAGI, Keita NAKANISHI
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Patent number: 10202399Abstract: Provided is a compound having a D-amino acid oxidase (DAAO) inhibitory action, and useful as, for example, a prophylaxis and/or therapeutic agent for schizophrenia or neuropathic pain. The present inventors have studied a compound that inhibits DAAO, and confirm that a dihydroxy aromatic heterocyclic compound has a DAAO inhibitory action, and completed the present invention. That is, the dihydroxy aromatic heterocyclic compound of the present invention has a good DAAO inhibitory action, and can be used as a prophylaxis and/or therapeutic agent for, for example, schizophrenia or neuropathic pain.Type: GrantFiled: December 22, 2016Date of Patent: February 12, 2019Assignee: Takeda Pharmaceutical Company LimitedInventors: Takeshi Hondo, Keita Nakanishi, Tatsuya Niimi, Masaichi Warizaya, Ichiji Namatame, Katsuya Harada
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Publication number: 20170107226Abstract: Provided is a compound having a D-amino acid oxidase (DAAO) inhibitory action, and useful as, for example, a prophylaxis and/or therapeutic agent for schizophrenia or neuropathic pain. The present inventors have studied a compound that inhibits DAAO, and confirm that a dihydroxy aromatic heterocyclic compound has a DAAO inhibitory action, and completed the present invention. That is, the dihydroxy aromatic heterocyclic compound of the present invention has a good DAAO inhibitory action, and can be used as a prophylaxis and/or therapeutic agent for, for example, schizophrenia or neuropathic pain.Type: ApplicationFiled: December 22, 2016Publication date: April 20, 2017Inventors: Takeshi HONDO, Keita NAKANISHI, Tatsuya NIIMI, Masaichi WARIZAYA, Ichiji NAMATAME, Katsuya HARADA
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Patent number: 9585889Abstract: On the basis of a cathepsin S inhibitory effect, an excellent agent for treating or preventing autoimmune disease, allergic disease, graft rejection of an organ, bone marrow or tissue, systemic lupus erythematosus, or the like is provided. It was found that a nitrogen-containing bicyclic heterocyclic compound has an excellent cathepsin S inhibitory effect, thereby completing the invention. The compound of the present invention has an cathepsin S inhibitory effect, and can be used as an agent for preventing and/or treating autoimmune disease, allergic disease, graft rejection of an organ, bone marrow or tissue, systemic lupus erythematosus, or the like.Type: GrantFiled: February 8, 2016Date of Patent: March 7, 2017Assignee: Astellas Pharma Inc.Inventors: Yutaka Nakajima, Sunao Imada, Yuji Takasuna, Naohiro Aoyama, Takahiro Nigawara, Shohei Shirakami, Fumiyuki Shirai, Junji Sato, Keita Nakanishi, Kaori Kubo
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Patent number: 9562020Abstract: Provided is a compound having a D-amino acid oxidase (DAAO) inhibitory action, and useful as for example, a prophylaxis and/or therapeutic agent for schizophrenia or neuropathic pain. The present inventors have studied a compound that inhibits DAAO, and confirm that a dihydroxy aromatic heterocyclic compound has a DAAO inhibitory action, and completed the present invention. That is, the dihydroxy aromatic heterocyclic compound of the present invention has a good DAAO inhibitory action, and can be used as a prophylaxis and/or therapeutic agent for, for example, schizophrenia or neuropathic pain.Type: GrantFiled: October 16, 2015Date of Patent: February 7, 2017Assignee: Takeda Pharmaceutical Company LimitedInventors: Takeshi Hondo, Keita Nakanishi, Tatsuya Niimi, Masaichi Warizaya, Ichiji Namatame, Katsuya Harada
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Publication number: 20160228442Abstract: On the basis of a cathepsin S inhibitory effect, an excellent agent for treating or preventing autoimmune disease, allergic disease, graft rejection of an organ, bone marrow or tissue, systemic lupus erythematosus, or the like is provided. It was found that a nitrogen-containing bicyclic heterocyclic compound has an excellent cathepsin S inhibitory effect, thereby completing the invention. The compound of the present invention has an cathepsin S inhibitory effect, and can be used as an agent for preventing and/or treating autoimmune disease, allergic disease, graft rejection of an organ, bone marrow or tissue, systemic lupus erythematosus, or the like.Type: ApplicationFiled: February 8, 2016Publication date: August 11, 2016Applicant: ASTELLAS PHARMA INC.Inventors: Yutaka Nakajima, Sunao Imada, Yuji Takasuna, Naohiro Aoyama, Takahiro Nigawara, Shohei Shirakami, Fumiyuki Shirai, Junji Sato, Keita Nakanishi, Kaori Kubo
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Patent number: 9328118Abstract: [Problem] On the basis of a cathepsin S inhibitory effect, an excellent agent for treating or preventing autoimmune disease, allergic disease, graft rejection of an organ, bone marrow or tissue, systemic lupus erythematosus, or the like is provided. [Means for Solution] It was found that a nitrogen-containing bicyclic heterocyclic compound has the excellent cathepsin S inhibitory effect, thereby completing the invention. The compound of the present invention has the cathepsin S inhibitory effect, and can be used as an agent for preventing and/or treating autoimmune disease, allergic disease, graft rejection of an organ, bone marrow or tissue, systemic lupus erythematosus, or the like.Type: GrantFiled: April 17, 2013Date of Patent: May 3, 2016Assignee: Astellas Pharma Inc.Inventors: Yutaka Nakajima, Sunao Imada, Yuji Takasuna, Naohiro Aoyama, Takahiro Nigawara, Shohei Shirakami, Fumiyuki Shirai, Junji Sato, Keita Nakanishi, Kaori Kubo
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Publication number: 20160039771Abstract: Provided is a compound having a D-amino acid oxidase (DAAO) inhibitory action, and useful as for example, a prophylaxis and/or therapeutic agent for schizophrenia or neuropathic pain. The present inventors have studied a compound that inhibits DAAO, and confirm that a dihydroxy aromatic heterocyclic compound has a DAAO inhibitory action, and completed the present invention. That is, the dihydroxy aromatic heterocyclic compound of the present invention has a good DAAO inhibitory action, and can be used as a prophylaxis and/or therapeutic agent for, for example, schizophrenia or neuropathic pain.Type: ApplicationFiled: October 16, 2015Publication date: February 11, 2016Inventors: Takeshi HONDO, Keita NAKANISHI, Tatsuya NIIMI, Masaichi WARIZAYA, Ichiji NAMATAME, Katsuya HARADA
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Patent number: 9257874Abstract: A rotor unit includes a plurality of rotating bodies arranged along a central axis. Each of the plurality of rotating bodies includes an annular rotor core surrounding the central axis, a plurality of magnets arranged in the circumferential direction around the rotor core, and a holder arranged to hold the magnets. Further, the holder includes a plurality of partitioning portions each axially extending between respective ones of the plurality of magnets. The axial dimension of the plurality of partitioning portions is longer than the axial dimension of the respective ones of the plurality of magnets which are held by the plurality of partitioning portions. Further, the plurality of rotating bodies is disposed in a state where the circumferential positions of the plurality of magnets are out of alignment.Type: GrantFiled: April 2, 2012Date of Patent: February 9, 2016Assignee: NIDEC CORPORATIONInventors: Hidehiro Haga, Keita Nakanishi, Takayuki Migita, Masato Aono
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Patent number: 9212147Abstract: Provided is a compound having a D-amino acid oxidase (DAAO) inhibitory action, and useful as for example, a prophylaxis and/or therapeutic agent for schizophrenia or neuropathic pain. The present inventors have studied a compound that inhibits DAAO, and confirm that a dihydroxy aromatic heterocyclic compound has a DAAO inhibitory action, and completed the present invention. That is, the dihydroxy aromatic heterocyclic compound of the present invention has a good DAAO inhibitory action, and can be used as a prophylaxis and/or therapeutic agent for, for example, schizophrenia or neuropathic pain.Type: GrantFiled: November 14, 2012Date of Patent: December 15, 2015Assignee: Takeda Pharmaceutical Company LimitedInventors: Takeshi Hondo, Keita Nakanishi, Tatsuya Niimi, Masaichi Warizaya, Ichiji Namatame, Katsuya Harada
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Publication number: 20150126488Abstract: [Problem] On the basis of a cathepsin S inhibitory effect, an excellent agent for treating or preventing autoimmune disease, allergic disease, graft rejection of an organ, bone marrow or tissue, systemic lupus erythematosus, or the like is provided. [Means for Solution] It was found that a nitrogen-containing bicyclic heterocyclic compound has the excellent cathepsin S inhibitory effect, thereby completing the invention. The compound of the present invention has the cathepsin S inhibitory effect, and can be used as an agent for preventing and/or treating autoimmune disease, allergic disease, graft rejection of an organ, bone marrow or tissue, systemic lupus erythematosus, or the like.Type: ApplicationFiled: April 17, 2013Publication date: May 7, 2015Applicant: ASTELLAS PHARMA INCInventors: Yutaka Nakajima, Sunao Imada, Yuji Takasuna, Naohiro Aoyama, Takahiro Nigawara, Shohei Shirakami, Fumiyuki Shirai, Junji Sato, Keita Nakanishi, Kaori Kubo
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Publication number: 20140336165Abstract: Provided is a compound having a D-amino acid oxidase (DAAO) inhibitory action, and useful as, for example, a prophylaxis and/or therapeutic agent for schizophrenia or neuropathic pain. The present inventors have studied a compound that inhibits DAAO, and confirm that a dihydroxy aromatic heterocyclic compound has a DAAO inhibitory action, and completed the present invention. That is, the dihydroxy aromatic heterocyclic compound of the present invention has a good DAAO inhibitory action, and can be used as a prophylaxis and/or therapeutic agent for, for example, schizophrenia or neuropathic pain.Type: ApplicationFiled: November 14, 2012Publication date: November 13, 2014Inventors: Takeshi Hondo, Keita Nakanishi, Tatsuya Niimi, Masaichi Warizaya, Ichiji Namatame, Katsuya Harada
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Publication number: 20130257211Abstract: A rotor unit includes a plurality of rotating bodies arranged along a central axis. Each of the plurality of rotating bodies includes an annular rotor core surrounding the central axis, a plurality of magnets arranged in the circumferential direction around the rotor core, and a holder arranged to hold the magnets. Further, the holder includes a plurality of partitioning portions each axially extending between respective ones of the plurality of magnets. The axial dimension of the plurality of partitioning portions is longer than the axial dimension of the respective ones of the plurality of magnets which are held by the plurality of partitioning portions. Further, the plurality of rotating bodies is disposed in a state where the circumferential positions of the plurality of magnets are out of alignment.Type: ApplicationFiled: April 2, 2012Publication date: October 3, 2013Applicant: NIDEC CORPORATIONInventors: Hidehiro Haga, Keita Nakanishi, Takayuki Migita, Masato Aono
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Patent number: 8367702Abstract: As a result of extensive studies on NAD(P)H oxidase inhibitors, the present inventors found that a quinolone derivative having, at the 2-position, an alkyl group substituted with a heteroatom or the like has an excellent NAD(P)H oxidase inhibitory activity, and accomplished the present invention. The compound of the present invention has a reactive oxygen species production inhibitory activity based on the NAD(P)H oxidase inhibitory activity, and therefore can be used as an agent for preventing and/or treating diabetes, impaired glucose tolerance, hyperlipidemia, fatty liver, diabetic complications and the like.Type: GrantFiled: September 25, 2008Date of Patent: February 5, 2013Assignee: Astellas Pharma Inc.Inventors: Kenichi Onda, Kenichiro Imamura, Fumie Sato, Hiroyuki Moritomo, Yasuharu Urano, Yuki Sawada, Naoki Ishibashi, Keita Nakanishi, Kazuhiro Yokoyama, Shigetada Furukawa, Kazuhiro Momose
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Patent number: 8198464Abstract: The present invention provides a method for producing a C-glycoside derivative, which can produce the C-glycoside derivative at a high yield and at a low cost, which conforms to environmental protection, and which is applicable industrially. The C-glycoside derivative is useful for treating and preventing diabetes such as insulin-dependent diabetes (type 1 diabetes), non-insulin-dependent diabetes (type 2 diabetes) and the like and various diabetes-related diseases including insulin-resistant diseases and obesity.Type: GrantFiled: December 20, 2007Date of Patent: June 12, 2012Assignees: Astellas Pharma Inc., Kotobuki Pharmaceutical Co., Ltd.Inventors: Kousuke Komenoi, Atsushi Nakamura, Makoto Kasai, Masakazu Imamura, Ryota Shiraki, Keita Nakanishi
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Patent number: 8097592Abstract: A cocrystal of (1S)-1,5-anhydro-1-[3-(1-benzothien-2-ylmethyl)-4-fluorophenyl]-D-glucitol and L-proline. It is a cocrystal of known compound A, which has a constant quality, is superior in storage stability, has no moisture absorptivity, and is suitable as a crystal of a drug substance used for preparing pharmaceuticals.Type: GrantFiled: April 4, 2007Date of Patent: January 17, 2012Assignees: Astellas Pharma Inc., Kotobuki Pharmaceutical Co. Ltd.Inventors: Masakazu Imamura, Keita Nakanishi, Ryota Shiraki, Kenichi Onda, Daisuke Sasuga, Masamichi Yuda
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Publication number: 20110018376Abstract: A technique and structure for establishing a sufficient electrical connection between an armature and a power supply of a motor even for use in severe working environments through at least one busbar is such that each of the at least one busbar is connected a conductor wire arranged to supply a drive current to the armature of the motor. The structure includes a terminal plate having a through hole defined therein to allow the conductor wire to pass therethrough, and a terminal wall arranged to rise above the terminal plate from a periphery of the through hole.Type: ApplicationFiled: March 12, 2009Publication date: January 27, 2011Applicant: NIDEC CORPORATIONInventors: Nakaba Kataoka, Keita Nakanishi
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Patent number: 7868504Abstract: A resolver rotor for a variable reluctance resolver includes a plurality of axially stacked rotor pieces. The rotor pieces are jointly fitted into one body. In the fitting of the rotor pieces, deformed portions are provided between a center of the radial thickness of the resolver rotor and a side surface thereof which is opposite to a stator-side surface thereof. The number of deformed portions is the same as that of projecting poles of the resolver rotor. The deformed portions are arranged at circumferential positions of peaks of the respective projecting poles. At those positions, concave portions are provided on the side surface to receive deformations caused by fitting the rotor pieces together. Thus, the stator-side surface of the resolver rotor is less affected by fitting of the rotor pieces together, preventing a reduction in the detection accuracy of the resolver.Type: GrantFiled: April 21, 2008Date of Patent: January 11, 2011Assignee: Nidec CorporationInventors: Nakaba Kataoka, Keita Nakanishi
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Patent number: 7830051Abstract: A resolver includes a terminal block having a plurality of terminals integrally formed therein. Each of the terminals has a conductive wire connecting portion arranged to allow a conductive wire of a resolver stator to be fixed thereto and a lead wire connecting portion which allows a lead wire to be connected thereto. Ultrasonic welding is carried out to join the lead wire connecting portion and a connecting end of the lead wire.Type: GrantFiled: January 10, 2008Date of Patent: November 9, 2010Assignee: Nidec CorporationInventors: Nakaba Kataoka, Takahiro Hattori, Keita Nakanishi