Patents by Inventor Daigo Saito

Daigo Saito 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: 20240084753
    Abstract: A control device and method controls a vehicle having an internal combustion engine connected to an automatic transmission via a torque converter with a lockup device. The torque of the internal combustion engine is limited the by a torque limit value based on a speed difference between an input rotational speed and an output rotational speed of the torque converter during acceleration in a non-lockup state. The torque-limiting of the internal combustion engine is prohibited torque-limiting upon a prescribed condition being met. The prescribed condition is met by a heating request, during hill climbing/towing, during travel at high vehicle speeds, when the accelerator pedal opening angle exceeds or is equal to a prescribed opening angle, when the torque limit value is greater than a target torque, in a range other than a D range, or in a mode other than normal mode.
    Type: Application
    Filed: November 29, 2021
    Publication date: March 14, 2024
    Inventors: Tetsuya NISHIYAMA, Daigo KISHI, Tatsuo NAKANO, Seiichirou TAKAHASHI, Koji SAITO, Yukiyoshi INUTA, Takao ARIMATSU, Yasuhiro ENDO
  • Publication number: 20230324802
    Abstract: A resist underlayer film for lithography does not cause intermixing with a resist layer, has high dry etching resistance and high heat resistance, and generates a low amount of sublimate. A resist underlayer film-forming composition containing a polymer having a unit structure of the following formula (1): wherein A is a divalent group having at least two amino groups, the group is derived from a compound having a condensed ring structure and an aromatic group for substituting a hydrogen atom on the condensed ring, and B1 and B2 are each independently a hydrogen atom, an alkyl group, a benzene ring group, a condensed ring group, or a combination thereof, or B1 and B2 optionally form a ring with a carbon atom bonded to B1 and B2.
    Type: Application
    Filed: June 9, 2023
    Publication date: October 12, 2023
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Hikaru TOKUNAGA, Daigo SAITO, Keisuke HASHIMOTO, Rikimaru SAKAMOTO
  • Patent number: 11720024
    Abstract: A resist underlayer film for lithography does not cause intermixing with a resist layer, has high dry etching resistance and high heat resistance, and generates a low amount of sublimate. A resist underlayer film-forming composition containing a polymer having a unit structure of the following formula (1): wherein A is a divalent group having at least two amino groups, the group is derived from a compound having a condensed ring structure and an aromatic group for substituting a hydrogen atom on the condensed ring, and B1 and B2 are each independently a hydrogen atom, an alkyl group, a benzene ring group, a condensed ring group, or a combination thereof, or B1 and B2 optionally form a ring with a carbon atom bonded to B1 and B2.
    Type: Grant
    Filed: August 4, 2022
    Date of Patent: August 8, 2023
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Hikaru Tokunaga, Daigo Saito, Keisuke Hashimoto, Rikimaru Sakamoto
  • Publication number: 20220404707
    Abstract: A resist underlayer film for lithography does not cause intermixing with a resist layer, has high dry etching resistance and high heat resistance, and generates a low amount of sublimate. A resist underlayer film-forming composition containing a polymer having a unit structure of the following formula (1): wherein A is a divalent group having at least two amino groups, the group is derived from a compound having a condensed ring structure and an aromatic group for substituting a hydrogen atom on the condensed ring, and B1 and B2 are each independently a hydrogen atom, an alkyl group, a benzene ring group, a condensed ring group, or a combination thereof, or B1 and B2 optionally form a ring with a carbon atom bonded to B1 and B.
    Type: Application
    Filed: August 4, 2022
    Publication date: December 22, 2022
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Hikaru TOKUNAGA, Daigo SAITO, Keisuke HASHIMOTO, Rikimaru SAKAMOTO
  • Patent number: 11300879
    Abstract: A material to form a resist underlayer film having properties achieving heat resistance, flattening properties, and etching resistance through lithography. A resist underlayer film forming composition including a polymer having a unit structure of Formula (1): (wherein R1 is an organic group having at least two amines and at least three C6-40 aromatic rings, R2 and R3 are each a hydrogen atom, a C1-10 alkyl group, a C6-40 aryl group, a heterocyclic group, or a combination thereof, and the alkyl group, the aryl group, and the heterocyclic group are optionally substituted with a halogen group, a nitro group, an amino group, a formyl group, an alkoxy group, or a hydroxy group, or R2 and R3 optionally form a ring together). The above mentioned composition t, wherein R1 is a divalent organic group derived from N,N?-diphenyl-1,4-phenylenediamine.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: April 12, 2022
    Assignee: NISSAN CHEMICAL CORPORATION
    Inventors: Daigo Saito, Keisuke Hashimoto, Rikimaru Sakamoto
  • Patent number: 11169441
    Abstract: A resist underlayer film forming composition characterized by containing (A) a compound represented by formula (1) (in formula (1), independently, R1 represents a C1 to C30 divalent group; each of R2 to R7 represents a C1 to C10 linear, branched, or cyclic alkyl group, a C6 to C10 aryl group, a C2 to C10 alkenyl group, a thiol group, or a hydroxyl group; at least one R5 is a hydroxyl group or a thiol group; each of m2, m3, and m6 is an integer of 0 to 9; each of m4 and m7 is an integer of 0 to 8; m5 is an integer of 1 to 9; n is an integer of 0 to 4; and each of p2 to p7 is an integer of 0 to 2) and a cross-linkable compound represented by formula (2-1) or (2-2) (in formula (2), Q1 represents a single bond or an m12-valent organic group; each of R12 and R15 independently represents a C2 to C10 alkyl group or a C2 to C10 alkyl group having a C1 to C10 alkoxy group; each of R13 and R16 represents a hydrogen atom or a methyl group; each of R14 and R17 represents a C1 to C10 alkyl group or a C6 to C40 aryl group;
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: November 9, 2021
    Assignee: NISSAN CHEMICAL CORPORATION
    Inventors: Daigo Saito, Keisuke Hashimoto, Rikimaru Sakamoto
  • Publication number: 20200387072
    Abstract: A resist underlayer film-forming composition including a novolac resin having a structural group (C) formed by reaction between an aromatic ring of an aromatic compound (A) having at least two amino groups and three C6-40 aromatic rings and a vinyl group of an aromatic vinyl compound (B). The structural group (C) may be a group of the following Formula (1): [wherein R1 is a divalent group containing at least two amino groups and at least three C6-40 aromatic rings]. R1 may be a divalent organic group prepared by removal of two hydrogen atoms from aromatic rings of a compound of the following Formula (2): R1 may be a divalent organic group prepared by removal of two hydrogen atoms from aromatic rings of N,N?-diphenyl-1,4-phenylenediamine.
    Type: Application
    Filed: February 20, 2019
    Publication date: December 10, 2020
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Hirokazu NISHIMAKI, Daigo SAITO, Ryo KARASAWA, Keisuke HASHIMOTO
  • Publication number: 20200142310
    Abstract: A resist underlayer film forming composition characterized by containing (A) a compound represented by formula (1) (in formula (1), independently, R1 represents a C1 to C30 divalent group; each of R2 to R7 represents a C1 to C10 linear, branched, or cyclic alkyl group, a C6 to C10 aryl group, a C2 to C10 alkenyl group, a thiol group, or a hydroxyl group; at least one R5 is a hydroxyl group or a thiol group; each of m2, m3, and m6 is an integer of 0 to 9; each of m4 and m7 is an integer of 0 to 8; m5 is an integer of 1 to 9; n is an integer of 0 to 4; and each of p2 to p7 is an integer of 0 to 2) and a cross-linkable compound represented by formula (2-1) or (2-2) (in formula (2), Q1 represents a single bond or an m12-valent organic group; each of R12 and R15 independently represents a C2 to C10 alkyl group or a C2 to C10 alkyl group having a C1 to C10 alkoxy group; each of R13 and R16 represents a hydrogen atom or a methyl group; each of R14 and R17 represents a C1 to C10 alkyl group or a C6 to C40 aryl group;
    Type: Application
    Filed: July 12, 2018
    Publication date: May 7, 2020
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Daigo SAITO, Keisuke HASHIMOTO, Rikimaru SAKAMOTO
  • Publication number: 20190212649
    Abstract: A material to form a resist underlayer film having properties achieving heat resistance, flattening properties, and etching resistance through lithography. A resist underlayer film forming composition including a polymer having a unit structure of Formula (1): (wherein R1 is an organic group having at least two amines and at least three C6-40 aromatic rings, R2 and R3 are each a hydrogen atom, a C1-10 alkyl group, a C6-40 aryl group, a heterocyclic group, or a combination thereof, and the alkyl group, the aryl group, and the heterocyclic group are optionally substituted with a halogen group, a nitro group, an amino group, a formyl group, an alkoxy group, or a hydroxy group, or R2 and R3 optionally form a ring together). The above mentioned composition t, wherein R1 is a divalent organic group derived from N,N?-diphenyl-1,4-phenylenediamine.
    Type: Application
    Filed: August 28, 2017
    Publication date: July 11, 2019
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Daigo SAITO, Keisuke HASHIMOTO, Rikimaru SAKAMOTO
  • Patent number: 10156692
    Abstract: An optical fiber transition assembly comprises a cable having a first terminal end from which extends an optical fiber. A furcation tube is also provided, having a second terminal end near the first terminal end of the cable into which the optical fiber of the cable is received. A polymeric transition element surrounds the first and second terminal ends to protect and secure the optical fiber in transition from the cable to the furcation tube, the polymeric transition element being configured to be retained in an entry port of an enclosure.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: December 18, 2018
    Assignee: AFL Telecommunications LLC
    Inventors: Edward Morris, Roger Vaughn, Vahid Ebrahimi, Daigo Saito, Wilfred Courchaine
  • Publication number: 20180356732
    Abstract: A resist underlayer film for lithography does not cause intermixing with a resist layer, has high dry etching resistance and high heat resistance, and generates a low amount of sublimate. A resist underlayer film-forming composition containing a polymer having a unit structure of the following formula (1): wherein A is a divalent group having at least two amino groups, the group is derived from a compound having a condensed ring structure and an aromatic group for substituting a hydrogen atom on the condensed ring, and B1 and B2 are each independently a hydrogen atom, an alkyl group, a benzene ring group, a condensed ring group, or a combination thereof, or B1 and B2 optionally form a ring with a carbon atom bonded to B1 and B2.
    Type: Application
    Filed: November 30, 2016
    Publication date: December 13, 2018
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Hikaru TOKUNAGA, Daigo SAITO, Keisuke HASHIMOTO, Rikimaru SAKAMOTO
  • Patent number: 10138323
    Abstract: A highly branched polymer comprising repeating units which each have an acid group such as sulfo group, said repeating units being represented by formula [1] or the like, and a dispersant for carbon nanotubes (CNTs) which comprises the highly branched polymer can disperse CNTs in a medium such as an organic solvent to the individual sizes and can yield thin films having improved conductivity. In formula [1], any one of A1 to A5 is a sulfo group, and the others are each a hydrogen atom.
    Type: Grant
    Filed: May 25, 2012
    Date of Patent: November 27, 2018
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Daigo Saito, Tatsuya Hatanaka
  • Publication number: 20180314154
    Abstract: A resist underlayer film-forming composition comprising a novolac resin obtained by reacting an aromatic compound (A) with an aldehyde (B) having formyl group bonded to a secondary carbon atom or tertiary carbon atom of a C2-26 alkyl group. A resist underlayer film-forming composition according to the first aspect, in which the novolac resin comprises a unit structure of Formula (1): (in Formula (1), A is a bivalence group derived from a C6-40 aromatic compound; b1 is a C1-16 alkyl group; and b2 is a hydrogen atom or a C1-9 alkyl group). A is the bivalent group derived from an aromatic compound comprising an amino group, a hydroxy group, or both an amino group and a hydroxy group.
    Type: Application
    Filed: October 14, 2016
    Publication date: November 1, 2018
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Daigo SAITO, Takafumi ENDO, Ryo KARASAWA, Rikimaru SAKAMOTO
  • Publication number: 20180267262
    Abstract: A wedge device for use with a fiber optic connector comprises an insert body comprising a light transmissive material. The insert body defines a wedge portion integrally extending into a light pass structure, the light pass structure terminating in a single upper face distal from the wedge portion. For example, wedge device may be a unitary member formed entirely of the light transmissive material.
    Type: Application
    Filed: May 22, 2018
    Publication date: September 20, 2018
    Inventors: Daigo Saito, Roger Vaughn
  • Patent number: 10036860
    Abstract: A connector assembly for a fiber optic cable comprises a multi-part inner housing adapted to support an optical fiber splice connection structure. A cable clamp is located at a proximal end of the inner housing and is adapted to engage an outer sheath of a fiber optic cable. Preferably, the cable clamp is rotatable with respect to the inner housing.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: July 31, 2018
    Assignee: AFL Telecommunications LLC
    Inventors: Daigo Saito, Roger Vaughn
  • Publication number: 20180181001
    Abstract: A resist underlayer film-forming composition in which a coating film having high flattening properties is formed on a substrate. A resist underlayer film-forming composition including an epoxy adduct (C) obtained by reacting an epoxy group-containing compound (A) with an epoxy adduct-forming compound (B), wherein one or both of the epoxy group-containing compound (A) and the epoxy adduct-forming compound (B) contain an optionally branched alkyl group having a carbon atom number of three or more. The epoxy adduct-forming compound (B) is at least one compound selected from the group consisting of carboxylic acid (B1), carboxylic anhydride (B2), a phenol compound (B3), a hydroxyl group-containing compound (B4), a thiol compound (B5), an amino compound (B6), and an imide compound (B7). The optionally branched alkyl group having a carbon atom number of three or more is contained in the epoxy adduct-forming compound (B). The optionally branched alkyl group has a C3-19 alkyl group.
    Type: Application
    Filed: June 20, 2016
    Publication date: June 28, 2018
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Takafumi ENDO, Daigo SAITO, Ryo KARASAWA, Rikimaru SAKAMOTO
  • Patent number: 10007067
    Abstract: A wedge device for use with a fiber optic connector comprises an insert body comprising a light transmissive material. The insert body defines a wedge portion integrally extending into a light pass structure, the light pass structure terminating in a single upper face distal from the wedge portion. For example, wedge device may be a unitary member formed entirely of the light transmissive material.
    Type: Grant
    Filed: March 10, 2015
    Date of Patent: June 26, 2018
    Assignee: AFL Telecommunications LLC
    Inventors: Daigo Saito, Roger Vaughn
  • Publication number: 20180059337
    Abstract: A connector assembly for a fiber optic cable comprises a multi-part inner housing adapted to support an optical fiber splice connection structure. A cable clamp is located at a proximal end of the inner housing and is adapted to engage an outer sheath of a fiber optic cable. Preferably, the cable clamp is rotatable with respect to the inner housing.
    Type: Application
    Filed: October 25, 2017
    Publication date: March 1, 2018
    Inventors: Daigo Saito, Roger Vaughn
  • Patent number: 9829656
    Abstract: A connector assembly for a fiber optic cable comprises a multi-part inner housing adapted to support an optical fiber splice connection structure. A cable clamp is located at a proximal end of the inner housing and is adapted to engage an outer sheath of a fiber optic cable. Preferably, the cable clamp is rotatable with respect to the inner housing.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: November 28, 2017
    Assignee: AFL Telecommunications LLC
    Inventors: Daigo Saito, Roger Vaughn
  • Publication number: 20170322386
    Abstract: An optical fiber transition assembly comprises a cable having a first terminal end from which extends an optical fiber. A furcation tube is also provided, having a second terminal end near the first terminal end of the cable into which the optical fiber of the cable is received. A polymeric transition element surrounds the first and second terminal ends to protect and secure the optical fiber in transition from the cable to the furcation tube, the polymeric transition element being configured to be retained in an entry port of an enclosure.
    Type: Application
    Filed: June 17, 2015
    Publication date: November 9, 2017
    Inventors: Edward MORRIS, Roger VAUGHN, Vahid EBRAHIMI, Daigo SAITO, Wilfred COURCHAINE