Patents by Inventor Naoya Fukumoto

Naoya Fukumoto 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: 20240034951
    Abstract: A fluorine-containing ether compound represented by the following formula (1) is provided. R2—CH2—R1—CH2OCH2CH(OH)—(CH2)n—CH(OH)CH2OCH2—R1—CH2—R2??(1) (in the formula (1), n is an integer of 2 to 6, R1 is a perfluoropolyether chain, R2 is —OCH2CH(OH)CH2O(CH2)mOH (m in the formula is an integer of 2 to 4)).
    Type: Application
    Filed: July 9, 2020
    Publication date: February 1, 2024
    Applicant: Resonac Corporation
    Inventors: Naoya FUKUMOTO, Daisuke YAGYU, Tsuyoshi KATO, Katsumi MUROFUSHI
  • Publication number: 20240002743
    Abstract: What is provided is a fluorine-containing ether compound represented by the following formula. R1—R2—O—CH2—R3—CH2—O—R4—R5 (R3 is a perfluoropolyether chain; R2 is represented by Formula (2), R4 is represented by Formula (3), R1 and R5 are hydrogen atoms or Formula (4); a and b in Formula (2) are an integer of 0 to 2, c in Formula (2) is an integer of 2 to 5, d and e in Formula (3) are an integer of 0 to 2, f in Formula (3) is an integer of 2 to 5; at least one of b in Formula (2) and e in Formula (3) is 1 or more; and k in Formula (4) is an integer of 3 to 6.
    Type: Application
    Filed: June 7, 2021
    Publication date: January 4, 2024
    Applicant: SHOWA DENKO K.K.
    Inventors: Tsuyoshi KATO, Ayano ASANO, Natsumi SHIBATA, Daisuke YAGYU, Takuma KURODA, Naoya FUKUMOTO
  • Publication number: 20230405604
    Abstract: An electrostatic separator separates conductive particles from raw materials includes: a container with a raw material layer; a gas dispersion plate at the bottom of the raw material layer; at least one vibrating body in the raw material layer flush with the gas dispersion plate or above it; a fluidization gas supplier introduced from the container bottom into the raw material layer flows upward through the gas dispersion plate; an upper electrode above the raw material layer; a lower electrode in the raw material layer, the lower electrode being flush with the gas dispersion plate or above it; a power supply applies a voltage between the upper and lower electrode wherein one becomes a negative electrode, the other becomes a positive electrode, and an electric field is generated between them; and a capturer captures conductive particles that have flown out of the raw material layer surface toward the upper electrode.
    Type: Application
    Filed: October 23, 2020
    Publication date: December 21, 2023
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takayuki IHARA, Koki IKEDA, Naoya OGIYAMA, Yusuke IIDA, Manabu MASAMOTO, Koji FUKUMOTO, Gen KIYOTAKI, Keiichi MASHIO, Tomoyuki SUZUKI, Ryoma YAMAMOTO
  • Patent number: 11845906
    Abstract: A fluorine-containing ether compound represented by the following formula (1). C6H6-n—[O—R1—O—CH2—R2—CH2—R3]n??(1) (in the formula (1), n is an integer of 2 or 3, R1 is any one of —CH2CH2—, —CH2CH2CH2— and —CH2CH(OH)CH2—, R2 is a perfluoropolyether chain, R3 is —OCH2CH(OH)CH2O(CH2)mOH (m in the formula is an integer of 2 to 4)).
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: December 19, 2023
    Assignee: RESONAC CORPORATION
    Inventors: Naoya Fukumoto, Daisuke Yagyu, Tsuyoshi Kato, Katsumi Murofushi
  • Publication number: 20230398553
    Abstract: An electrostatic separation method includes: applying voltage between a lower electrode at a bottom portion of or in the raw material layer and an upper electrode above the raw material layer, generating an electric field between electrodes; fluidizing the raw material layer and bringing conductive particles and the lower electrode into contact in the raw material layer charging only the conductive particles wherein their polarity becomes the same as the lower electrode; generating polarity, the same as the upper electrode, by dielectric polarization on a conveyor belt downward-facing conveyance surface passing through a capture region above the raw material layer and under the upper electrode, the conveyance surface including a nonconductor; separates charged conductive particles from the raw material layer surface by electrostatic force and adhering conductive particles to the conveyor belt conveyance surface; and separating and collecting the particles from the conveyance surface that moved outside the ele
    Type: Application
    Filed: October 19, 2021
    Publication date: December 14, 2023
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Takayuki IHARA, Koki IKEDA, Naoya OGIYAMA, Yusuke IIDA, Manabu MASAMOTO, Koji FUKUMOTO, Gen KIYOTAKI, Keiichi MASHIO, Tomoyuki SUZUKI, Ryoma YAMAMOTO
  • Patent number: 11820742
    Abstract: There is provided a fluorine-containing ether compound represented by the following formula. R1—R2—CH2—R3—CH2—OCH2CH(OH)CH2O—CH2—R3—CH2—R4—R5 (in the formula. R3 represents a perfluoropolyether chain; R2 and R4 represent a divalent linking group having a polar group; R1 and R5 represent a terminal group bonded to an oxygen atom of R2 or R4; and at least one of R1 and R5 is any one selected from the group consisting of an alkenyl group having 2 to 8 carbon atoms, an alkynyl group having 3 to 8 carbon atoms, an aromatic hydrocarbon-containing group, and an aromatic heterocycle-containing group).
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: November 21, 2023
    Assignee: Resonac Corporation
    Inventors: Naoya Fukumoto, Tsuyoshi Kato, Katsumi Murofushi, Daisuke Yagyu, Shunya Suzuki, Ayano Asano
  • Patent number: 11820953
    Abstract: This fluorine-containing ether compound is a fluorine-containing ether compound represented by formula (1). R1—X—R2—CH2—R3—CH2—R4??(1) (In formula (1), R1 is an alkenyloxy group of 2 to 8 carbon atoms or an alkynyloxy group of 3 to 8 carbon atoms. R2 is represented by formula (2) shown below. In formula (2), a represents an integer of 1 to 3. X is represented by formula (3) shown below. In formula (3), b represents an integer of 1 to 5, Y is a divalent linking group that is bonded to a carbon atom in formula (2), and R represents an alkyl group of 1 to 6 carbon atoms or H. R3 represents a perfluoropolyether chain. R4 represents a terminal group containing two or three polar groups, wherein each polar group is bonded to a different carbon atom, and the carbon atoms to which the polar groups are bonded are bonded to each other via a linking group containing a carbon atom to which a polar group is not bonded.
    Type: Grant
    Filed: March 12, 2020
    Date of Patent: November 21, 2023
    Assignee: Resonac Corporation
    Inventors: Natsumi Shibata, Tsuyoshi Kato, Daisuke Yagyu, Shunya Suzuki, Masaki Nanko, Naoya Fukumoto
  • Patent number: 11767483
    Abstract: The fluorine-containing ether compound is represented by the following formula (1): R1—R2—CH2—R3—CH2—R4. In the formula (1), R1 is represented by the following formula (2), R2 is represented by the following formula (3), R3 is a perfluoropolyether chain, and R4 is an organic end group different from R1—R2— and contains two or three polar groups, wherein each polar group is bonded to a different carbon atom, and the carbon atoms to which the polar groups are bonded are bonded to one another via a linking group containing a carbon atom to which the polar group is not bonded. In the formula (2), R5 is an alkoxy group selected from the group consisting of a methoxy, an ethoxy and a propoxy group. In the formula (3), w is 2 or 3.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: September 26, 2023
    Assignee: Resonac Corporation
    Inventors: Daisuke Yagyu, Naoya Fukumoto, Tsuyoshi Kato, Katsumi Murofushi
  • Publication number: 20230257521
    Abstract: A fluorine-containing ether compound represented by the following formula (1) is provided. (In the formula (1), R1 is an alkoxy group having 1 to 10 carbon atoms, R2 is a perfluoropolyether chain, R3 is —OCH2CH(OH)CH2O(CH2)mOH (m in the formula is an integer of 2 to 4).
    Type: Application
    Filed: July 10, 2020
    Publication date: August 17, 2023
    Applicant: SHOWA DENKO K.K.
    Inventors: Naoya FUKUMOTO, Daisuke YAGYU, Tsuyoshi KATO, Katsumi MUROFUSHI
  • Publication number: 20230242829
    Abstract: What is provided is a fluorine-containing ether compound represented by the following formula. R1—CH2—R2—CH2—OCH2CH(OH)CH2O—CH2—R3—CH2—R4 (In the formula, R2 and R3 are perfluoropolyether chains, and R1 and R4 are terminal groups having two or three polar groups, in which individual polar groups are bound to different carbon atoms and the carbon atoms to which the polar groups are bound are bound to each other via a linking group having a carbon atom to which the polar groups are not bound).
    Type: Application
    Filed: June 7, 2021
    Publication date: August 3, 2023
    Applicant: SHOWA DENKO K.K.
    Inventors: Natsumi SHIBATA, Naoya FUKUMOTO, Tsuyoshi KATO
  • Patent number: 11661018
    Abstract: A resin bracket for fixing an onboard device to a window glass employed in a vehicle. The bracket includes plural bracket pieces, each configured to be adhered to the window glass, a coupling portion configured to couple together adjacent bracket pieces of the bracket pieces so as to allow relative movement therebetween, and an engaging portion provided at each of the bracket pieces so as to enable plural engagement portions provided at the onboard device to engage with the respective engaging portions.
    Type: Grant
    Filed: December 10, 2020
    Date of Patent: May 30, 2023
    Assignee: Nifco Inc.
    Inventors: Naoya Takeda, Mitsuru Fukumoto, Satoshi Hasegawa
  • Patent number: 11661478
    Abstract: A fluorine-containing ether compound of the present invention is represented by the following General Formula (1). (In the General Formula (1), X is a trivalent atom or a trivalent atom group, A is a linking group including at least one polar group, B is a linking group having a perfluoropolyether chain, and D is a polar group or a substituent having a polar group at the end.) [Chem.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: May 30, 2023
    Assignee: SHOWA DENKO K.K.
    Inventors: Takuya Minami, Yoshishige Okuno, Yuta Yamaguchi, Ryuuta Miyasaka, Naoya Fukumoto, Hiroko Hattori, Hiroyuki Tomita, Michio Seri, Naoko Ito, Ichiro Ota, Katsumi Murofushi
  • Patent number: 11661408
    Abstract: The fluorine-containing ether compound is represented by the following formula (1): R1—R2—CH2—R3—CH2—R4. In the formula (1), R1 is represented by the following formula (2), R2 is represented by the following formula (3), R3 is a perfluoropolyether chain, and R4 is an organic end group different from R1—R2— and contains two or three polar groups, wherein each polar group is bonded to a different carbon atom, and the carbon atoms to which the polar groups are bonded are bonded to one another via a linking group containing a carbon atom to which the polar group is not bonded. In the formula (2), r is 1 to 3. In the formula (3), w is 2 or 3.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: May 30, 2023
    Assignee: SHOWA DENKO K.K.
    Inventors: Daisuke Yagyu, Naoya Fukumoto, Tsuyoshi Kato, Katsumi Murofushi
  • Patent number: 11639330
    Abstract: Provided is a fluorine-containing ether compound that can be suitably used as a material for a lubricant for a magnetic recording medium, capable of forming a lubricant layer having excellent chemical substance resistance and wear resistance even when the thickness is small. A fluorine-containing ether compound represented by the following formula (1): R1—R2—CH2—R3—CH2—R4—R5??(1) In the formula (1), R3 is a perfluoropolyether chain. R2 and R4 are divalent linkage groups having a polar group, and may be the same or different. R1 and R5 are terminal groups bonded to R2 or R4, which may be the same or different, and at least one of R1 and R5 is an organic group having 1 to 8 carbon atoms wherein one or more hydrogen atoms of the organic group is substituted with a cyano group.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: May 2, 2023
    Assignee: SHOWA DENKO K.K.
    Inventors: Masaki Nanko, Naoya Fukumoto, Daisuke Yagyu, Yuta Yamaguchi, Tsuyoshi Kato, Hiroyuki Tomita, Katsumi Murofushi, Shohei Nishizawa
  • Publication number: 20230120626
    Abstract: There is provided a fluorine-containing ether compound represented by the following formula. R1—R2—CH2—R3—CH2—OCH2CH(OH)CH2O—CH2—R3—CH2—R4—R5 (in the formula, R3 represents a perfluoropolyether chain; R2 and R4 represent a divalent linking group having a polar group and may be the same or different from each other; R1 and R5 represent a terminal group bonded to an oxygen atom of R2 or R4 and may be the same or different from each other; and at least one of R1 and R5 is an organic group having 1 to 8 carbon atoms and at least one of hydrogens included in the organic group is substituted by a cyano group).
    Type: Application
    Filed: December 16, 2020
    Publication date: April 20, 2023
    Applicant: SHOWA DENKO K.K.
    Inventors: Naoya FUKUMOTO, Tsuyoshi KATO, Katsumi MUROFUSHI, Daisuke YAGYU, Masaki NANKO, Natsumi SHIBATA
  • Publication number: 20230115042
    Abstract: A fluorine-containing ether compound represented by a formula (1) shown below. R1—(O(CH2)a)b-[A]-[B]—O—CH2—R2—CH2—R3??(1) (In the formula (1), R1 is an alkyl group which may have a substituent, or an organic group having at least one double bond or triple bond. Further, a represents an integer of 2 to 4, and b is 0 or 1. [A] is represented by a formula (2): —(OCH2CH(OH)CH2)c— (wherein c is 1 or 2). [B] is represented by a formula (3): —(O(CH2)eCH(OH)CH2)d— (wherein d is 0 or 1, and e represents an integer of 2 to 4). However, the sum of c in the formula (2) and d in the formula (3) is 2. R2 is a perfluoropolyether chain. R3 is represented by a formula (4): —(OCH2CH(OH)CH2)2—O—CH2(CH2)fOH (wherein f represents an integer of 2 to 5).
    Type: Application
    Filed: February 2, 2021
    Publication date: April 13, 2023
    Applicant: SHOWA DENKO K.K.
    Inventors: Daisuke YAGYU, Tsuyoshi KATO, Ayano ASANO, Natsumi SHIBATA, Naoya FUKUMOTO
  • Publication number: 20230099918
    Abstract: There is provided a fluorine-containing ether compound represented by the following formula. R1—R2—CH2—R3—CH2—OCH2CH(OH)CH2O—CH2—R3—CH2—R4—R5 (in the formula. R3 represents a perfluoropolyether chain; R2 and R4 represent a divalent linking group having a polar group; R1 and R5 represent a terminal group bonded to an oxygen atom of R2 or R4; and at least one of R1 and R5 is any one selected from the group consisting of an alkenyl group having 2 to 8 carbon atoms, an alkynyl group having 3 to 8 carbon atoms, an aromatic hydrocarbon-containing group, and an aromatic heterocycle-containing group).
    Type: Application
    Filed: December 17, 2020
    Publication date: March 30, 2023
    Applicant: SHOWA DENKO K.K.
    Inventors: Naoya FUKUMOTO, Tsuyoshi KATO, Katsumi MUROFUSHI, Daisuke YAGYU, Shunya SUZUKI, Ayano ASANO
  • Patent number: 11555005
    Abstract: A fluorine-containing ether compound according to the present invention is a fluorine-containing ether compound represented by the following General Formula (1).
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: January 17, 2023
    Assignee: SHOWA DENKO K.K.
    Inventors: Naoya Fukumoto, Ryuuta Miyasaka, Hiroyuki Tomita, Michio Seri, Naoko Ito, Katsumi Murofushi
  • Publication number: 20220380695
    Abstract: A fluorine-containing ether compound represented by the following formula (1). C6H6-n—[O—R1—O—CH2—R2—CH2—R3]n??(1) (in the formula (1), n is an integer of 2 or 3, R1 is any one of —CH2CH2—, —CH2CH2CH2— and —CH2CH(OH)CH2—, R2 is a perfluoropolyether chain, R3 is —OCH2CH(OH)CH2O(CH2)mOH (m in the formula is an integer of 2 to 4)).
    Type: Application
    Filed: September 8, 2020
    Publication date: December 1, 2022
    Applicant: SHOWA DENKO K.K.
    Inventors: Naoya FUKUMOTO, Daisuke YAGYU, Katsumi MUROFUSHI, Katsumi MUROFUSHI
  • Patent number: 11514945
    Abstract: A lubricant for a magnetic recording medium capable of forming a lubricant layer having excellent adhesion to a protective layer is provided. A lubricant for a magnetic recording medium contains a fluorine-containing ether compound in which a group having an ethylenic carbon-carbon double bond is disposed at one or both terminals of a perfluoroalkyl polyether chain. It is preferable that the group having the ethylenic carbon-carbon double bond is disposed at one terminal of the perfluoroalkyl polyether chain, and a hydroxyl group is disposed at other terminal. It is preferable that the lubricant for a magnetic recording medium contains a compound in which one or more functional groups selected from a hydroxyl group, an amino group, an amido group and a carboxyl group is disposed at one or both terminals of a perfluoroalkyl polyether chain.
    Type: Grant
    Filed: February 20, 2018
    Date of Patent: November 29, 2022
    Assignee: SHOWA DENKO K.K.
    Inventors: Hiroyuki Tomita, Hiroko Hattori, Naoya Fukumoto, Ryuuta Miyasaka, Naoko Ito, Ichiro Ota, Katsumi Murofushi