Patents by Inventor Takeshi Kubota
Takeshi Kubota 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).
-
Publication number: 20230283128Abstract: Provided is a rotating electric machine, including: a field magneton; and an armature. In terms of components in a radial direction of the field magneton of magnetic fluxes passing from the field magneton to the armature, a magnetic flux density at a center in an axial direction of the field magneton is lower than a magnetic flux density at an end in the axial direction of the field magneton.Type: ApplicationFiled: July 29, 2022Publication date: September 7, 2023Applicant: Mitsubishi Electric CorporationInventors: Kengo KUMAGAI, Shinsuke Kayano, Takeshi Kubota
-
Publication number: 20230213141Abstract: A fixing device capable of reducing a burden on an operator when adjusting an inclination of communication equipment is achieved. A fixing device includes: a first jig configured to fix communication equipment; a second jig configured to rotatably support the first jig about a rotation shaft; a ratchet mechanism configured to be capable of switching restraint or permission of rotation of the first jig in one direction with respect to the second jig due to weight of the communication equipment, and permit rotation of the first jig in another direction with respect to the second jig; and a biasing member configured to store biasing force when the first jig rotates in one direction with respect to the second jig due to weight of the communication equipment, and bias rotation of the first jig in another direction with respect to the second jig.Type: ApplicationFiled: March 9, 2021Publication date: July 6, 2023Applicant: NEC Platforms, Ltd.Inventors: Satoko ONO, Yasuhiro KUBOTA, Takeshi OHASHI
-
Patent number: 11674206Abstract: There is provided a sintered friction material for railway vehicles that has excellent frictional properties and wear resistance even in a high speed range of 280 km/hour or more. The sintered friction material for railway vehicles is a green compact sintered material containing, in mass %, Cu: 50.0 to 75.0%, graphite: 5.0 to 15.0%, one or more selected from the group consisting of magnesia, zircon sand, silica, zirconia, mullite, and silicon nitride: 1.5 to 15.0%, one or more selected from the group consisting of W and Mo: 3.0 to 30.0%, and one or more selected from the group consisting of ferrochromium, ferrotungsten, ferromolybdenum, and stainless steel: 2.0 to 20.0%, with the balance being impurities.Type: GrantFiled: November 30, 2017Date of Patent: June 13, 2023Assignees: NIPPON STEEL CORPORATION, FINE SINTER CO., LTD.Inventors: Manabu Kubota, Kazutaka Asabe, Yuki Ichikawa, Takeshi Nakano, Tokitake Okahira, Isao Shimazoe
-
Non-oriented electrical steel sheet and method for manufacturing non-oriented electrical steel sheet
Patent number: 11566303Abstract: A non-oriented electrical steel sheet according to one embodiment of the invention has a chemical composition represented by C: 0.0030% or less, Si: 2.00% or less, Al: 1.00% or less, Mn: 0.10% to 2.00%, S: 0.0030% or less, one or more selected from the group consisting of Mg, Ca, Sr, Ba, Nd, Pr, La, Ce, Zn, and Cd: 0.0003% or greater and less than 0.0015% in total, a parameter Q represented by Q=[Si]+2×[Al]?[Mn]: 2.00 or less; Sn: 0.00% to 0.40%, Cu: 0.00% to 1.00%, and a remainder: Fe and impurities, and a parameter R represented by R?(I100+I310+I411+I521)/(I111+I211+I332+I221) is 0.80 or greater.Type: GrantFiled: February 15, 2019Date of Patent: January 31, 2023Assignee: NIPPON STEEL CORPORATIONInventors: Takeshi Kubota, Takeaki Wakisaka, Masafumi Miyazaki, Takashi Morohoshi -
Non-oriented electrical steel sheet and method for manufacturing non-oriented electrical steel sheet
Patent number: 11469018Abstract: A non-oriented electrical steel sheet according to one embodiment of the invention has a chemical composition represented by C: 0.0030% or less, Si: 2.00% or less, Al: 1.00% or less, Mn: 0.10% to 2.00%, S: 0.0030% or less, one or more selected from the group consisting of Mg, Ca, Sr, Ba, Nd, Pr, La, Ce, Zn, and Cd: greater than 0.0100% and not greater than 0.0250% in total, a parameter Q represented by Q=[Si]+2×[Al]?[Mn]: 2.00 or less; Sn: 0.00% to 0.40%, Cu: 0.00% to 1.00%, and a remainder: Fe and impurities, and a parameter R represented by R=(I100+I310+I411+I521)/(I111+I211+I332+I221) is 0.80 or greater.Type: GrantFiled: February 15, 2019Date of Patent: October 11, 2022Assignee: NIPPON STEEL CORPORATIONInventors: Takeshi Kubota, Takeaki Wakisaka, Masafumi Miyazaki, Takashi Morohoshi -
Non-oriented electrical steel sheet and method for manufacturing non-oriented electrical steel sheet
Patent number: 11459632Abstract: A non-oriented electrical steel sheet according to one embodiment of the invention has a chemical composition represented by C: 0.0030% or less, Si: 2.00% or less, Al: 1.00% or less, Mn: 0.10% to 2.00%, S: 0.0030% or less, one or more selected from the group consisting of Mg, Ca, Sr, Ba, Nd, Pr, La, Ce, Zn, and Cd: 0.0015% to 0.0100% in total, a parameter Q represented by Q=[Si]+2×[Al]?[Mn]: 2.00 or less; Sn: 0.00% to 0.40%, Cu: 0.00% to 1.00%, and a remainder: Fe and impurities, and a parameter R represented by R=(I100+I310+I411+I521)/(I111+I211+I332+I221) is 0.80 or greater.Type: GrantFiled: February 15, 2019Date of Patent: October 4, 2022Assignee: NIPPON STEEL CORPORATIONInventors: Takeshi Kubota, Takeaki Wakisaka, Takashi Morohoshi, Masafumi Miyazaki -
Publication number: 20220271584Abstract: Provided is a rotating electric machine, including a rotor, the rotor including: a rotor core; a first permanent magnet inserted into a first magnet slot; and a second permanent magnet inserted into a second magnet slot. The rotor core includes an inter-pole hole portion formed between the first magnet slot and the second magnet slot. When a circle having a rotation axis as a center and circumscribing an edge portion of each of the first magnet slot and the second magnet slot on the stator side is defined as a first circle, the inter-pole hole portion is arranged on a side opposite to the stator with respect to the first circle, and an edge portion of the inter-pole hole portion on the stator side is formed along the first circle.Type: ApplicationFiled: November 22, 2021Publication date: August 25, 2022Applicant: Mitsubishi Electric CorporationInventors: Yoshihiro MIYAMA, Takeshi KUBOTA, Kengo KUMAGAI
-
Publication number: 20220186330Abstract: The present disclosure has as its object the provision of non-oriented electrical steel sheet excellent in magnetic properties which is free from any drop in magnetic flux density even after stress relief annealing and a method for manufacturing the same. Non-oriented electrical steel sheet having a chemical composition containing C: 0.0030 mass % or less, Si: 2.0 mass % or more and 4.0 mass % or less, Al: 0.010 mass % or more and 3.0 mass % or less, Mn: 0.10 mass % or more and 2.4% mass or less, P: 0.0050 mass % or more and 0.20 mass % or less, S: 0.0030 mass % or less, and one or more elements selected from the group comprising Mg, Ca, Sr, Ba, Ce, La, Nd, Pr, Zn, and Cd: total 0.00050 mass % or more and having a balance of Fe and unavoidable impurities, where, when designating a mass % of Si as [Si], a mass % of Al as [Al], and a mass % of Mn as [Mn], a parameter Q shown by the following formula (1) is 2.0 or more, a random intensity ratio of the {100} orientation is 2.Type: ApplicationFiled: February 14, 2020Publication date: June 16, 2022Applicant: NIPPON STEEL CORPORATIONInventors: Tesshu MURAKAWA, Hiroshi FUJIMURA, Takeaki WAKISAKA, Takeshi KUBOTA
-
Patent number: 11359217Abstract: Provided is a transformant of a microorganism that has improved catechol productivity.Type: GrantFiled: February 18, 2019Date of Patent: June 14, 2022Assignee: RESEARCH INSTITUTE OF INNOVATIVE TECHNOLOGY FOR THE EARTHInventors: Masayuki Inui, Kazumi Hiraga, Masako Suda, Takeshi Kubota
-
Patent number: 11214441Abstract: An endless belt includes a band-shaped belt main body made of a vulcanized rubber, and a coupling part that is made of a thermoplastic resin and is provided between both end parts of the belt main body, wherein the vulcanized rubber of the both end parts of the belt main body and the thermoplastic resin of the coupling part are chemically bonded to each other.Type: GrantFiled: September 27, 2018Date of Patent: January 4, 2022Assignee: NITTA CORPORATIONInventors: Yoshihiro Konishi, Takeshi Kubota, Akito Oi, Akihiko Kuriya
-
Patent number: 11214751Abstract: Provided are: a metalworking oil composition having excellent workability and rust inhibiting performance, which is prepared by blending (A) at least one carboxylate selected from a polyhydric alcohol ester of a monocarboxylic acid and a monohydric alcohol ester of a polycarboxylic acid, (B) a phosphorus-containing compound, and (C) a rust inhibitor, wherein the monocarboxylic acid has 9 or more and 21 or less carbon atoms, and the content of the carboxylate is 0.6% by mass or more based on the total amount of the composition; and a metalworking method using the composition.Type: GrantFiled: August 24, 2017Date of Patent: January 4, 2022Assignees: IDEMITSU KOSAN CO., LTD., NIPPON STEEL CORPORATIONInventors: Naoki Nagase, Hideo Sugii, Keiji Noma, Seikichi Kitabatake, Isao Noguchi, Takeshi Kubota, Shuichi Yamazaki, Eisuke Minematsu
-
Publication number: 20210222211Abstract: Provided is a transformant of a microorganism that has improved catechol productivity.Type: ApplicationFiled: February 18, 2019Publication date: July 22, 2021Applicant: RESEARCH INSTITUTE OF INNOVATIVE TECHNOLOGY FOR THE EARTHInventors: Masayuki INUI, Kazumi HIRAGA, Masako SUDA, Takeshi KUBOTA
-
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number: 20210172036Abstract: A non-oriented electrical steel sheet according to one embodiment of the invention has a chemical composition represented by C: 0.0030% or less, Si: 2.00% or less, Al: 1.00% or less, Mn: 0.10% to 2.00%, S: 0.0030% or less, one or more selected from the group consisting of Mg, Ca, Sr, Ba, Nd, Pr, La, Ce, Zn, and Cd: 0.0015% to 0.0100% in total, a parameter Q represented by Q=[Si]+2×[Al]?[Mn]: 2.00 or less; Sn: 0.00% to 0.40%, Cu: 0.00% to 1.00%, and a remainder: Fe and impurities, and a parameter R represented by R=(I100+I310+I411+I521)/(I111+I211+I332+I221) is 0.80 or greater.Type: ApplicationFiled: February 15, 2019Publication date: June 10, 2021Applicant: NIPPON STEEL CORPORATIONInventors: Takeshi KUBOTA, Takeaki WAKISAKA, Takashi MOROHOSHI, Masafumi MIYAZAKI -
Patent number: 10995393Abstract: When a Si content (mass %) is set to [Si], an Al content (mass %) is set to [Al], and a Mn content (mass %) is set to [Mn], a parameter Q represented by “Q=[Si]+2[Al]?[Mn]” is 2.00 or more, the total mass of S contained in sulfides or oxysulfides of Mg, Ca, Sr, Ba, Ce, La, Nd, Pr, Zn, or Cd is 40% or more of the total mass of S contained in a non-oriented electrical steel sheet, a {100} crystal orientation intensity is 3.0 or more, a thickness is 0.15 mm to 0.30 mm, and an average crystal grain diameter is 65 ?m to 100 ?m.Type: GrantFiled: June 2, 2017Date of Patent: May 4, 2021Assignee: NIPPON STEEL CORPORATIONInventors: Takeshi Kubota, Takashi Morohoshi, Masafumi Miyazaki
-
Patent number: 10988743Abstract: Provided is a microorganism that is capable of efficiently producing para-aminobenzoic acid (4-ABA) or a salt thereof, using saccharides as raw materials, and a method for efficiently producing 4-ABA or a salt thereof by using this microorganism. A transformant obtained by introducing, into a coryneform bacterium, a gene that encodes 4-amino-4-deoxychorismate lyase, a gene that encodes a para-aminobenzoate synthase component I, and a gene that encodes a para-aminobenzoate synthase component II, is capable of efficiently producing 4-ABA or a salt thereof from saccharides.Type: GrantFiled: February 24, 2017Date of Patent: April 27, 2021Assignees: RESEARCH INSTITUTE OF INNOVATIVE TECHNOLOGY FOR THE EARTH, SUMITOMO BAKELITE CO., LTD.Inventors: Masayuki Inui, Kazumi Hiraga, Masako Suda, Takeshi Kubota
-
Patent number: 10991494Abstract: When a Si content (mass %) is set to [Si], an Al content (mass %) is set to [Al], and a Mn content (mass %) is set to [Mn], a parameter Q represented by “Q=[Si]+2[Al]?[Mn]” is 2.00 or more, the total mass of S contained in sulfides or oxysulfides of Mg, Ca, Sr, Ba, Ce, La, Nd, Pr, Zn, or Cd is 40% or more of the total mass of S contained in a non-oriented electrical steel sheet, a {100} crystal orientation intensity is 3.0 or more, a thickness is 0.15 mm to 0.30 mm, and an average crystal grain diameter is 65 ?m to 100 ?m.Type: GrantFiled: June 2, 2017Date of Patent: April 27, 2021Assignee: NIPPON STEEL CORPORATIONInventors: Takeshi Kubota, Takashi Morohoshi, Masafumi Miyazaki
-
Patent number: 10968503Abstract: When a Si content (mass %) is set to [Si], an Al content (mass %) is set to [Al], and a Mn content (mass %) is set to [Mn], a parameter Q represented by “Q=[Si]+2[Al]?[Mn]” is 2.00 or more, the total mass of S contained in sulfides or oxysulfides of Mg, Ca, Sr, Ba, Ce, La, Nd, Pr, Zn, or Cd is 10% or more of the total mass of S contained in a non-oriented electrical steel sheet, a {100} crystal orientation intensity is 3.0 or more, a thickness is 0.15 mm to 0.30 mm, and an average crystal grain diameter is 65 ?m to 100 ?m.Type: GrantFiled: June 2, 2017Date of Patent: April 6, 2021Assignee: NIPPON STEEL CORPORATIONInventors: Takeshi Kubota, Takashi Morohoshi, Masafumi Miyazaki
-
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number: 20210062286Abstract: A non-oriented electrical steel sheet according to one embodiment of the invention has a chemical composition represented by C: 0.0030% or less, Si: 2.00% or less, Al: 1.00% or less, Mn: 0.10% to 2.00%, S: 0.0030% or less, one or more selected from the group consisting of Mg, Ca, Sr, Ba, Nd, Pr, La, Ce, Zn, and Cd: 0.0003% or greater and less than 0.0015% in total, a parameter Q represented by Q=[Si]+2x[Al]?[Mn]: 2.00 or less; Sn: 0.00% to 0.40%, Cu: 0.00% to 1.00%, and a remainder: Fe and impurities, and a parameter R represented by R?(I100+I310+I411+I521)/(I111+I211+I332+I221) is 0.80 or greater.Type: ApplicationFiled: February 15, 2019Publication date: March 4, 2021Applicant: NIPPON STEEL CORPORATIONInventors: Takeshi KUBOTA, Takeaki WAKISAKA, Masafumi MIYAZAKI, Takashi MOROHOSHI -
Patent number: 10852610Abstract: An opening insulation film covers a substrate and is in contact with a side surface of a gate electrode. The opening insulation film is provided with a first opening portion having a side surface on the gate electrode. A gate insulation film made of an oxide insulator is on the gate electrode and the opening insulation film. A semiconductor channel film made of an oxide semiconductor is on the gate insulation film and is encompassed by the first opening portion. Source and drain electrodes are on the semiconductor channel film. A source upper-layer electrode and a drain upper-layer electrode both made of an oxide are provided at least on upper surfaces of the source electrode and the drain electrode, respectively. An interlayer insulation film made of an oxide has a portion provided on the source upper-layer electrode and the drain upper-layer electrode and is in contact the semiconductor channel film.Type: GrantFiled: March 8, 2019Date of Patent: December 1, 2020Assignee: Mitsubishi Electric CorporationInventors: Kazunori Inoue, Koji Oda, Takafumi Hashiguchi, Takeshi Kubota
-
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING NON-ORIENTED ELECTRICAL STEEL SHEET
Publication number: 20200350104Abstract: A non-oriented electrical steel sheet according to one embodiment of the invention has a chemical composition represented by C: 0.0030% or less, Si: 2.00% or less, Al: 1.00% or less, Mn: 0.10% to 2.00%, S: 0.0030% or less, one or more selected from the group consisting of Mg, Ca, Sr, Ba, Nd, Pr, La, Ce, Zn, and Cd: greater than 0.0100% and not greater than 0.0250% in total, a parameter Q represented by Q=[Si]+2×[Al]?[Mn]: 2.00 or less; Sn: 0.00% to 0.40%, Cu: 0.00% to 1.00%, and a remainder: Fe and impurities, and a parameter R represented by R=(I100+I310+I411+I521)/(I111+I211+I332+I221) is 0.80 or greater.Type: ApplicationFiled: February 15, 2019Publication date: November 5, 2020Applicant: NIPPON STEEL CORPORATIONInventors: Takeshi KUBOTA, Takeaki WAKISAKA, Masafumi MIYAZAKI, Takashi MOROHOSHI