Patents by Inventor Hirofumi Ota

Hirofumi Ota 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).

  • Patent number: 11970006
    Abstract: The object is to provide a liquid container that can prevent foreign substances from flowing into a liquid ejection apparatus with a simple configuration. The liquid container for containing liquid to be ejected by a liquid ejection apparatus includes: a bag body configured to contain the liquid inside; and a flow path for supplying the liquid contained inside the bag body to the liquid ejection apparatus, wherein, inside a peripheral wall of the flow path, a first capturing unit extending in an anti-gravitational direction and a second capturing unit extending in a gravitational direction are arranged at different positions with respect to a direction in which the liquid flows.
    Type: Grant
    Filed: August 5, 2022
    Date of Patent: April 30, 2024
    Assignee: Canon Kabushiki Kaisha
    Inventors: Yu Katano, Hirofumi Ota, Ken Ikegame, Yasuto Kodera, Masao Furukawa
  • Patent number: 11923950
    Abstract: A relay device that relays between a plurality of radio devices that perform radio communication with terminals, and at least one radio control device that controls the radio devices, the relay device including: a replication necessity determination unit that determines whether or not to replicate a downlink signal received from the radio control device; a signal replicating unit that makes the same number of copies of a downlink signal as the number of destination radio devices only when the replication necessity determination unit determines that the downlink signal is to be replicated; and a downlink signal assignment unit that transfers a downlink signal that has been determined by the replication necessity determination unit as a signal that is not to be replicated, and downlink signals replicated by the signal replicating unit, to the radio devices respectively corresponding thereto.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: March 5, 2024
    Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
    Inventors: Naotaka Shibata, Hirofumi Yamamoto, Keita Takahashi, Noriyuki Ota, Jun Terada
  • Publication number: 20230046404
    Abstract: The object is to provide a liquid container that can prevent foreign substances from flowing into a liquid ejection apparatus with a simple configuration. The liquid container for containing liquid to be ejected by a liquid ejection apparatus includes: a bag body configured to contain the liquid inside; and a flow path for supplying the liquid contained inside the bag body to the liquid ejection apparatus, wherein, inside a peripheral wall of the flow path, a first capturing unit extending in an anti-gravitational direction and a second capturing unit extending in a gravitational direction are arranged at different positions with respect to a direction in which the liquid flows.
    Type: Application
    Filed: August 5, 2022
    Publication date: February 16, 2023
    Inventors: Yu Katano, Hirofumi Ota, Ken Ikegame, Yasuto Kodera, Masao Furukawa
  • Publication number: 20220379621
    Abstract: The object is to provide a liquid container capable of supplying liquid to a liquid ejection apparatus with simple configuration. Liquid container 100 has liquid containing bag 120 and an introduction member. The introduction member includes the first and second liquid introduction members. The first introduction member has the first spacer unit and the first coupling unit integrally connected to the first spacer unit in which the first groove for letting liquid flow to a liquid lead-out unit is formed. The second introduction member has the second spacer unit and the second coupling unit integrally connected to the second spacer unit in which the second groove for letting liquid flow to the liquid lead-out unit is formed. The first and second liquid introduction members are adjoined so that the surface on which the first groove is formed and the surface on which the second groove is formed face each other.
    Type: Application
    Filed: May 17, 2022
    Publication date: December 1, 2022
    Inventors: Hiroshi Inomata, Yu Katano, Ken Ikegame, Hirofumi Ota
  • Publication number: 20210159421
    Abstract: This composition for forming a charge-transporting thin film, which contains an organic solvent and a charge-transporting substance precursor that has a 9-t-butoxycarbonyl carbazole structure in the molecule, yields a thin film that exhibits excellent charge transport properties even when firing is performed at a low temperature. As pertains to the charge-transporting substance precursor, the composition can be prepared using a low-polarity solvent that causes less damage to a substrate or a member comprising an organic compound than is the case with a high-polarity amide-based solvent, etc.
    Type: Application
    Filed: July 4, 2019
    Publication date: May 27, 2021
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Toshiyuki ENDO, Hirofumi OTA
  • Patent number: 10847725
    Abstract: Provided is an electron-accepting substance precursor comprising a sulfonic acid ester compound represented by formula (1). (In the formula, R1-R4 each independently represent a hydrogen atom, or a straight-chain or branched C1-6 alkyl group. R5 represents a C2-20 monovalent hydrocarbon group which may be substituted. A1 represents —O— or —S—. A2 represents a group having a valence of (n+1) and derived from naphthalene or anthracene. A3 represents a group having a valence of m and derived from perfluorinated biphenyl. m represents an integer satisfying 2?m?4. n represents an integer satisfying 1?n?4).
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: November 24, 2020
    Assignee: NISSAN CHEMICAL CORPORATION
    Inventors: Hirofumi Ota, Toshiyuki Endo
  • Publication number: 20200317609
    Abstract: Provided is a sulfonic acid ester compound which is represented by formula (1). (In the formula, each of R1s-R5s independently represents a hydrogen atom, a nitro group, a cyano group, a halogen atom, an alkyl group, a halogenated alkyl group or a halogenated alkenyl group; each of R6s-R9s independently represents a hydrogen atom or a linear or branched monovalent aliphatic hydrocarbon group; R10s represents a linear or branched monovalent aliphatic hydrocarbon group or —OR11s, wherein R11s represents an optionally substituted monovalent hydrocarbon group having 2-20 carbon atoms; A1 represents —O—, —S— or —NH—; A2 represents an (n+1)-valent aromatic group; and n represents an integer that satisfies 1?n?4.
    Type: Application
    Filed: December 19, 2018
    Publication date: October 8, 2020
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Hirofumi OTA, Toshiyuki ENDO
  • Patent number: 10563738
    Abstract: A vehicular automatic transmission includes a plurality of engagement devices and a plurality of planetary gear sets. Each of the planetary gear sets includes rotating elements. At least one of the rotating elements of one of the plurality of planetary gear sets is coupled to one of the rotating elements of another planetary gear set or one of the engagement devices, via a spline engagement portion. The rotating elements other than the at least one of the rotating elements coupled via the spline engagement portion is coupled to another rotating element or a non-rotary member directly or via one of the engagement devices. The at least one of the rotating elements coupled via the spline engagement portion is configured to be co-rotated with no torque transmitted via the spline engagement portion, when the automatic transmission is placed in a predetermined gear position as one of the plurality of gear positions.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: February 18, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masashi Ikemura, Hirofumi Ota, Yasuyuki Hagino, Mitsuhiro Toyoda, Yosuke Michikoshi
  • Patent number: 10533070
    Abstract: Provided is a fluorine atom-containing polymer which is a condensation polymer of a fluorene derivative that provides a repeating unit represented by formula (1), a fluorene derivative that provides a repeating unit represented by formula (2) and a fluorene derivative that provides a repeating unit represented by formula (3).
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: January 14, 2020
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Naoki Otani, Hirofumi Ota
  • Patent number: 10513491
    Abstract: Provided is a sulfonic acid ester compound represented by formula (1). (In the formula, R1 and R2 each independently represent a hydrogen atom, or a straight-chain or branched monovalent aliphatic hydrocarbon group. R3 represents a straight-chain or branched monovalent aliphatic hydrocarbon group. The sum of the carbon numbers of R1, R2 and R3 is 6 or greater. A1 represents —O— or —S—. A2 represents an aromatic group having a valence of (n+1). A3 represents a hydrocarbon group which has a valence of m, and is unsubstituted or has a substituent that contains one or more aromatic rings. m represents an integer satisfying 2?m?4. n represents an integer satisfying 1?n?4).
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: December 24, 2019
    Assignee: NISSAN CHEMICAL CORPORATION
    Inventors: Hirofumi Ota, Toshiyuki Endo
  • Patent number: 10508728
    Abstract: In a transmission case mounted on a FF type vehicle, the transmission case includes a resin side cover formed at a front side of the vehicle. The resin side cover constitutes a vehicle front side surface section of an oil storage section configured to store oil in the transmission case, and includes a protrusion disposed above an oil surface of the oil stored in the oil storage section and protruding toward the front side of the vehicle to constitute the foremost section of the transmission case and a fragile section disposed between the protrusion and the oil surface of the oil and extending transversely in a lateral direction.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: December 17, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Hirofumi Morishita, Hirofumi Ota
  • Publication number: 20190169120
    Abstract: Provided is a sulfonic acid ester compound represented by formula (1). (In the formula, R1 and R2 each independently represent a hydrogen atom, or a straight-chain or branched monovalent aliphatic hydrocarbon group. R3 represents a straight-chain or branched monovalent aliphatic hydrocarbon group. The sum of the carbon numbers of R1, R2 and R3 is 6 or greater. A1 represents —O— or —S—. A2 represents an aromatic group having a valence of (n+1). A3 represents a hydrocarbon group which has a valence of m, and is unsubstituted or has a substituent that contains one or more aromatic rings. m represents an integer satisfying 2?m?4. n represents an integer satisfying 1?n?4.
    Type: Application
    Filed: June 14, 2017
    Publication date: June 6, 2019
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Hirofumi OTA, Toshiyuki ENDO
  • Publication number: 20190140183
    Abstract: Provided is an electron-accepting substance precursor comprising a sulfonic acid ester compound represented by formula (1). (In the formula, R1-R4 each independently represent a hydrogen atom, or a straight-chain or branched C1-6 alkyl group. R5 represents a C2-20 monovalent hydrocarbon group which may be substituted. A1 represents —O— or —S—. A2 represents a group having a valence of (n+1) and derived from naphthalene or anthracene. A3 represents a group having a valence of m and derived from perfluorinated biphenyl. m represents an integer satisfying 2?m?4. n represents an integer satisfying 1?n?4.
    Type: Application
    Filed: June 14, 2017
    Publication date: May 9, 2019
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Hirofumi OTA, Toshiyuki ENDO
  • Patent number: 10199578
    Abstract: Provided are a fluorine-atom-containing polymer that is a condensation polymer of a fluorine-atom-containing triphenylamine derivative giving a repeating unit represented by formula (1) and a fluorine derivative giving a repeating unit represented by formula (2) and the use of this fluorine-atom-containing polymer. (In the formulas, A represents a fluoroalkanediyl group, at least one of R1 and R2 represents any of an alkoxyl group, an alkenyloxy group, an alkynyloxy group, an aryloxy group, a heteroaryloxy group, and an alkyl group including at least one ether structure, R3-R6 represent prescribed substituents, m1 and m2 each independently represent an integer of 0-4, n1 and n2 represent an integer of 0-3.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: February 5, 2019
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Naoki Otani, Hirofumi Ota
  • Publication number: 20180031106
    Abstract: In a transmission case mounted on a FF type vehicle, the transmission case includes a resin side cover formed at a front side of the vehicle. The resin side cover constitutes a vehicle front side surface section of an oil storage section configured to store oil in the transmission case, and includes a protrusion disposed above an oil surface of the oil stored in the oil storage section and protruding toward the front side of the vehicle to constitute the foremost section of the transmission case and a fragile section disposed between the protrusion and the oil surface of the oil and extending transversely in a lateral direction.
    Type: Application
    Filed: July 12, 2017
    Publication date: February 1, 2018
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Hirofumi MORISHITA, Hirofumi OTA
  • Publication number: 20180030200
    Abstract: Provided is a fluorine atom-containing polymer which is a condensation polymer of a fluorene derivative that provides a repeating unit represented by formula (1), a fluorene derivative that provides a repeating unit represented by formula (2) and a fluorene derivative that provides a repeating unit represented by formula (3).
    Type: Application
    Filed: February 5, 2016
    Publication date: February 1, 2018
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Naoki OTANI, Hirofumi OTA
  • Publication number: 20170200897
    Abstract: Provided are a fluorine-atom-containing polymer that is a condensation polymer of a fluorine-atom-containing triphenylamine derivative giving a repeating unit represented by formula (1) and a fluorine derivative giving a repeating unit represented by formula (2) and the use of this fluorine-atom-containing polymer. (In the formulas, A represents a fluoroalkanediyl group, at least one of R1 and R2 represents any of an alkoxyl group, an alkenyloxy group, an alkynyloxy group, an aryloxy group, a heteroaryloxy group, and an alkyl group including at least one ether structure, R3-R6 represent prescribed substituents, m1 and m2 each independently represent an integer of 0-4, n1 and n2 represent an integer of 0-3.
    Type: Application
    Filed: July 10, 2015
    Publication date: July 13, 2017
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Naoki OTANI, Hirofumi OTA
  • Patent number: 9702381
    Abstract: A hydraulic control system includes a first oil passage, a first oil pump, a second oil passage, a second oil pump and a check valve. The first oil pump is disposed in the first oil passage. The second oil passage bypasses the first oil pump, includes an intake oil passage and a discharge oil passage, the intake oil passage and the first oil passage are connected to each other at a connection point, and the discharge oil passage includes an air vent hole. The second oil pump is disposed in the second oil passage, configured to take in oil from the intake passage, and configured to discharge the oil into the discharge oil passage. The check valve is provided between the connection point and the air vent hole, configured to restrict flow of the oil from the air vent hole toward the connection point via the second oil pump.
    Type: Grant
    Filed: October 24, 2014
    Date of Patent: July 11, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroki Morita, Hirofumi Ota, Kohei Dodo, Hideki Kubonoya, Naoki Nishimura
  • Patent number: 9695148
    Abstract: 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: Grant
    Filed: November 12, 2013
    Date of Patent: July 4, 2017
    Assignee: 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
  • Publication number: 20170152921
    Abstract: A vehicular automatic transmission includes a plurality of engagement devices and a plurality of planetary gear sets. Each of the planetary gear sets includes rotating elements. At least one of the rotating elements of one of the plurality of planetary gear sets is coupled to one of the rotating elements of another planetary gear set or one of the engagement devices, via a spline engagement portion. The rotating elements other than the at least one of the rotating elements coupled via the spline engagement portion is coupled to another rotating element or a non-rotary member directly or via one of the engagement devices. The at least one of the rotating elements coupled via the spline engagement portion is configured to be co-rotated with no torque transmitted via the spline engagement portion, when the automatic transmission is placed in a predetermined gear position as one of the plurality of gear positions.
    Type: Application
    Filed: November 22, 2016
    Publication date: June 1, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masashi IKEMURA, Hirofumi OTA, Yasuyuki HAGINO, Mitsuhiro TOYODA, Yosuke MICHIKOSHI