Patents by Inventor Takumi Okada
Takumi Okada 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: 11911341Abstract: Provided is a multilayer vessel excellent in gas barrier performance and transparency and its application. The multilayer vessel contains a layer (X) that contains at least one type of polyolefin resin as the major ingredient; and a layer (Y) that contains a polyamide resin (A) as the major ingredient, the polyamide resin (A) being composed of a structural unit derived from diamine, and a structural unit derived from dicarboxylic acid, 70 mol % or more of the structural unit derived from diamine being derived from metaxylylenediamine, meanwhile 30 to 60 mol % of the structural unit derived from dicarboxylic acid being derived from straight chain aliphatic ?,?-dicarboxylic acid having 4 to 20 carbon atoms, and 70 to 40 mol % being derived from isophthalic acid.Type: GrantFiled: February 15, 2017Date of Patent: February 27, 2024Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Shota Arakawa, Toshiya Naito, Satoshi Okada, Kenichiro Usuda, Takumi Toida, Haruka Okazaki, Fumihiro Ito
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Publication number: 20230228787Abstract: A movable member coupled to a displacement detector via a void is disposed with respect to a fixed member to which a coil is fixed. By disposing the coil in a closed loop magnetic circuit including a permanent magnet, the movable-side member, and the fixed member, a Lorentz force for moving the movable-side member in the axial direction is generated.Type: ApplicationFiled: June 16, 2021Publication date: July 20, 2023Inventors: Teruo MARUYAMA, Kozo OKAMOTO, Michihiko TANI, Takumi OKADA
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Patent number: 11705773Abstract: An integrated magnetic shield and bearing holder useable with electric motors includes a shaft portion and a cover portion extending radially outward from the shaft portion. The shaft portion includes an inner wall defining a channel and a ledge extending radially inward from the inner wall. The cover portion includes a first layer, a second layer extending substantially parallel to the first layer, a magnetic shield extending between the first layer and the second layer, and an outer wall extending from the first layer and/or the second layer such that a space is defined between the outer wall and the shaft portion. The cover portion includes one or more retainers coupled to the magnetic shield to restrict movement of the magnetic shield relative to the first layer and/or the second layer.Type: GrantFiled: January 15, 2021Date of Patent: July 18, 2023Assignee: NIDEC CORPORATIONInventors: Takayuki Migita, Takumi Okada, Bradley Dunnill, Dan Fischer, Christopher Loewe, Ruben Rivera, Jose D Mendez, Daniel Mendoza, Manuel Gutierrez, Angel Noe
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Patent number: 11677280Abstract: A connection terminal includes a lower terminal portion, a bent portion, and an upper terminal portion. The bent portion extends radially inward from an upper end of the lower terminal portion. The upper terminal portion extends axially upward from a radially inner end of the bent portion. The upper terminal portion is located radially inside a radially inner end surface of a tooth. In a process of manufacturing a motor, a rotor main body is inserted into a radially inner side of a stator core, using a space defined radially inside the lower terminal portion.Type: GrantFiled: March 18, 2021Date of Patent: June 13, 2023Assignee: NIDEC CORPORATIONInventors: Shunsuke Takahashi, Takayuki Migita, Takumi Okada
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Publication number: 20230096312Abstract: Provided is a resist composition which contains a resin (A) and a solvent (B) that contains a compound (B1) represented by general formula (b-1), wherein the content of the active ingredients based on the total amount of the resist composition is 45% by mass or less. (In formula (b-1), R1 represents an alkyl group having from 1 to 10 carbon atoms.Type: ApplicationFiled: February 17, 2021Publication date: March 30, 2023Applicant: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Takumi OKADA, Hideyuki SATO, Masayuki KATAGIRI, Shu SUZUKI
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Patent number: 11588369Abstract: In manufacturing a motor, a second protrusion of a lead bushing is inserted into a second through-hole in a bearing holder. A diameter increased portion on an upper end of the second protrusion fixes the lead bushing to the bearing holder. This configuration thus requires less dimensional accuracy as compared with a case where the lead bushing is press fitted to the bearing holder.Type: GrantFiled: March 18, 2021Date of Patent: February 21, 2023Assignee: NIDEC CORPORATIONInventors: Shunsuke Takahashi, Takayuki Migita, Takumi Okada
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Publication number: 20220231565Abstract: An integrated magnetic shield and bearing holder useable with electric motors includes a shaft portion and a cover portion extending radially outward from the shaft portion. The shaft portion includes an inner wall defining a channel and a ledge extending radially inward from the inner wall. The cover portion includes a first layer, a second layer extending substantially parallel to the first layer, a magnetic shield extending between the first layer and the second layer, and an outer wall extending from the first layer and/or the second layer such that a space is defined between the outer wall and the shaft portion. The cover portion includes one or more retainers coupled to the magnetic shield to restrict movement of the magnetic shield relative to the first layer and/or the second layer.Type: ApplicationFiled: January 15, 2021Publication date: July 21, 2022Inventors: Takayuki MIGITA, Takumi OKADA, Bradley DUNNILL, Dan FISCHER, Christopher LOEWE, Ruben RIVERA, Jose D MENDEZ, Daniel MENDOZA, Manuel GUTIERREZ, Angel NOE
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Patent number: 11335491Abstract: The present invention controls the pressure and flow rate of fluid, in order to obtain uniform performance, configure a closed loop magnetic circuit so as to include an electromagnet, a flapper, and a yoke material, and elastically deform the flapper itself by Maxwell attractive force generated between a magnetic pole of the electromagnet and the flapper to make the separation distance between the nozzle and the flapper variable. As opposed to a rigid flapper structure that swingably moves around a supporting point, like a conventional servo valve, the electromagnet, the magnetic pole, the nozzle, the flapper, and the like are arranged such that a change in magnetic gap directly leads to a change in air gap.Type: GrantFiled: September 25, 2019Date of Patent: May 17, 2022Assignee: TOKKYOKIKI CORPORATIONInventors: Teruo Maruyama, Kozo Okamoto, Takumi Okada, Satoki Yamaguchi, Masataka Nakashima
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Publication number: 20210305870Abstract: A bus bar assembly includes conductors and a bus bar holder made of a resin, the bus bar holder holding the conductors. The conductors each include a plate-shaped portion extending perpendicularly to a central axis. The plate-shaped portions axially overlap one another. An upper plate-shaped portion corresponding to an uppermost one of the plate-shaped portions includes an upper surface at least partially exposed from the bus bar holder.Type: ApplicationFiled: March 18, 2021Publication date: September 30, 2021Inventors: Shunsuke TAKAHASHI, Takumi OKADA
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Publication number: 20210305853Abstract: A connection terminal includes a lower terminal portion, a bent portion, and an upper terminal portion. The bent portion extends radially inward from an upper end of the lower terminal portion. The upper terminal portion extends axially upward from a radially inner end of the bent portion. The upper terminal portion is located radially inside a radially inner end surface of a tooth. In a process of manufacturing a motor, a rotor main body is inserted into a radially inner side of a stator core, using a space defined radially inside the lower terminal portion.Type: ApplicationFiled: March 18, 2021Publication date: September 30, 2021Inventors: Shunsuke TAKAHASHI, Takayuki MIGITA, Takumi OKADA
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Publication number: 20210305875Abstract: In manufacturing a motor, a second protrusion of a lead bushing is inserted into a second through-hole in a bearing holder. A diameter increased portion on an upper end of the second protrusion fixes the lead bushing to the bearing holder. This configuration thus requires less dimensional accuracy as compared with a case where the lead bushing is press fitted to the bearing holder.Type: ApplicationFiled: March 18, 2021Publication date: September 30, 2021Inventors: Shunsuke TAKAHASHI, Takayuki MIGITA, Takumi OKADA
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Publication number: 20200018418Abstract: The present invention controls the pressure and flow rate of fluid, in order to obtain uniform performance, configure a closed loop magnetic circuit so as to include an electromagnet, a flapper, and a yoke material, and elastically deform the flapper itself by Maxwell attractive force generated between a magnetic pole of the electromagnet and the flapper to make the separation distance between the nozzle and the flapper variable. As opposed to a rigid flapper structure that swingably moves around a supporting point, like a conventional servo valve, the electromagnet, the magnetic pole, the nozzle, the flapper, and the like are arranged such that a change in magnetic gap directly leads to a change in air gap.Type: ApplicationFiled: September 25, 2019Publication date: January 16, 2020Inventors: Teruo Maruyama, Kozo Okamoto, Takumi Okada, Satoki Yamaguchi, Masataka Nakashima
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Patent number: 10483822Abstract: A motor includes a rotating shaft, a rotor, a stator, a bracket, and a control device mounted on the bracket. The bracket includes a cylindrical bracket main body, and a stator frame which faces the bracket main body across a clearance and holds an outer surface of the stator on the radially inward side of the bracket main body. The control device is mounted on the bracket main body. The bracket is provided with a cooling passage, and an inflow port and an outflow port connected with the cooling passage. The cooling passage includes a control device cooling passage provided between the bracket main body and the control device, a stator cooling passage provided between the bracket main body and the stator frame, and a communication passage coupling the control device cooling passage and the stator cooling passage.Type: GrantFiled: April 12, 2019Date of Patent: November 19, 2019Assignee: NIDEC CORPORATIONInventors: Masato Nakanishi, Yasuo Ishiyama, Yoshinobu Nakamura, Takumi Okada
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Patent number: 10465816Abstract: The present invention controls the pressure and flow rate of fluid, in order to obtain uniform performance, configure a closed loop magnetic circuit so as to include an electromagnet, a flapper, and a yoke material, and elastically deform the flapper itself by Maxwell attractive force generated between a magnetic pole of the electromagnet and the flapper to make the separation distance between the nozzle and the flapper variable. As opposed to a rigid flapper structure that swingably moves around a supporting point, like a conventional servo valve, the electromagnet, the magnetic pole, the nozzle, the flapper, and the like are arranged such that a change in magnetic gap directly leads to a change in air gap.Type: GrantFiled: February 9, 2016Date of Patent: November 5, 2019Assignee: TOKKYOKIKI CORPORATIONInventors: Teruo Maruyama, Kozo Okamoto, Takumi Okada, Satoki Yamaguchi, Masataka Nakashima
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Patent number: 10389265Abstract: A circuit element includes an upper switching device, a lower switching device, an upper diode device, and a lower diode device. An upper drain is connected to a first terminal connected to a positive electrode of a power supply, and an upper source is connected to a third terminal. A lower drain is connected to a fourth terminal, and a lower source is connected to a second terminal connected to a negative electrode of the power supply. An upper anode is connected to the fourth terminal, and an upper cathode is connected to the first terminal. A lower anode is connected to the second terminal, and a lower cathode is connected to the third terminal. The third terminal and the fourth terminal are arranged so as to be able to be short-circuited outside of a package.Type: GrantFiled: August 21, 2015Date of Patent: August 20, 2019Assignees: Nidec Corporation, ROHM Co., Ltd.Inventors: Masaki Yoshinaga, Masato Nakanishi, Yasuo Ishiyama, Toru Takahashi, Takumi Okada, Katsuhiko Yoshihara
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Publication number: 20190238024Abstract: A motor includes a rotating shaft, a rotor, a stator, a bracket, and a control device mounted on the bracket. The bracket includes a cylindrical bracket main body, and a stator frame which faces the bracket main body across a clearance and holds an outer surface of the stator on the radially inward side of the bracket main body. The control device is mounted on the bracket main body. The bracket is provided with a cooling passage, and an inflow port and an outflow port connected with the cooling passage. The cooling passage includes a control device cooling passage provided between the bracket main body and the control device, a stator cooling passage provided between the bracket main body and the stator frame, and a communication passage coupling the control device cooling passage and the stator cooling passage.Type: ApplicationFiled: April 12, 2019Publication date: August 1, 2019Inventors: Masato NAKANISHI, Yasuo ISHIYAMA, Yoshinobu NAKAMURA, Takumi OKADA
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Patent number: 10305345Abstract: A motor includes a rotating shaft, a rotor, a stator, a bracket, and a control device mounted on the bracket. The bracket includes a cylindrical bracket main body, and a stator frame which faces the bracket main body across a clearance and holds an outer surface of the stator on the radially inward side of the bracket main body. The control device is mounted on the bracket main body. The bracket is provided with a cooling passage, and an inflow port and an outflow port connected with the cooling passage. The cooling passage includes a control device cooling passage provided between the bracket main body and the control device, a stator cooling passage provided between the bracket main body and the stator frame, and a communication passage coupling the control device cooling passage and the stator cooling passage.Type: GrantFiled: June 24, 2015Date of Patent: May 28, 2019Assignee: NIDEC CORPORATIONInventors: Masato Nakanishi, Yasuo Ishiyama, Yoshinobu Nakamura, Takumi Okada
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Publication number: 20170271999Abstract: A circuit element includes an upper switching device, a lower switching device, an upper diode device, and a lower diode device. An upper drain is connected to a first terminal connected to a positive electrode of a power supply, and an upper source is connected to a third terminal. A lower drain is connected to a fourth terminal, and a lower source is connected to a second terminal connected to a negative electrode of the power supply. An upper anode is connected to the fourth terminal, and an upper cathode is connected to the first terminal. A lower anode is connected to the second terminal, and a lower cathode is connected to the third terminal. The third terminal and the fourth terminal are arranged so as to be able to be short-circuited outside of a package.Type: ApplicationFiled: August 21, 2015Publication date: September 21, 2017Applicants: Nidec Corporation, ROHM Co., Ltd.Inventors: Masaki YOSHINAGA, Masato NAKANISHI, Yasuo ISHIYAMA, Toru TAKAHASHI, Takumi OKADA, Katsuhiko YOSHIHARA
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Patent number: 9695148Abstract: This 2-pyridone compound represented by formula [1] or a tautomer of said compound, or a pharmaceutically acceptable salt of said compound or said tautomer, or a solvate of said compound or the like has a superior GK-activating effect and is useful as a pharmaceutical.Type: GrantFiled: November 12, 2013Date of Patent: July 4, 2017Assignee: Nissan Chemical Industries, Ltd.Inventors: Shoichi Kuroda, Yudai Imai, Takanori Kawaguchi, Keiko Fusegi, Masahiro Bohno, Hajime Asanuma, Tomomichi Chonan, Nagaaki Sato, Souichi Monma, Shigetada Sasako, Marie Mizutani, Shin Itoh, Takumi Okada, Hirofumi Ota, Seishi Ishiyama
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Publication number: 20160289208Abstract: This 2-pyridone compound represented by formula [1] or a tautomer of said compound, or a pharmaceutically acceptable salt of said compound or said tautomer, or a solvate of said compound or the like has a superior UK-activating effect and is useful as a pharmaceutical.Type: ApplicationFiled: November 12, 2013Publication date: October 6, 2016Applicants: TAISHO PHARMACEUTICAL CO., LTD., NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Shoichi KURODA, Yudai IMAI, Takanori KAWAGUCHI, Keiko FUSEGI, Masahiro BOHNO, Hajime ASANUMA, Tomomichi CHONAN, Nagaaki SATO, Souichi MONMA, Shigetada SASAKO, Marie MIZUTANI, Shin ITOH, Takumi OKADA, Hirofumi OTA, Seishi ISHIYAMA