Patents by Inventor Toru Saito

Toru 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: 20250059151
    Abstract: An object of the present invention is to provide a compound having an anti-inflammatory activity or a pharmacologically acceptable salt thereof. The solution of the present invention is a compound of general formula (1) or a pharmacologically acceptable salt thereof. wherein the symbols in the formula are defined below: R1: e.g., a C1-C6 alkyl group; R2: a C1-C6 alkyl group; A: e.g., an oxygen atom; and R3: e.g., a C1-C6 alkyl group.
    Type: Application
    Filed: August 29, 2024
    Publication date: February 20, 2025
    Applicant: Daiichi Sankyo Company, Limited
    Inventors: Keiji Saito, Katsuyoshi Nakajima, Toru Taniguchi, Osamu Iwamoto, Satoshi Shibuya, Yasuyuki Ogawa, Kazumasa Aoki, Nobuya Kurikawa, Shinji Tanaka, Momoko Ogitani, Eriko Kioi, Kaori Ito, Natsumi Nishihama, Tsuyoshi Mikkaichi, Wataru Saitoh
  • Publication number: 20250047084
    Abstract: A locking groove portion provided in a first protector includes a pair of guide rails extending along a locking insertion/removal direction and inclined upward from an opening portion to a wall portion in the locking insertion/removal direction and a locking protrusion portion provided in a second protector includes a pair of guided members guided by the pair of guide rails, respectively when inserted into the locking groove portion, each of the pair of guided members being inclined upward from a rear end portion to a front end portion of the locking protrusion portion.
    Type: Application
    Filed: June 28, 2024
    Publication date: February 6, 2025
    Inventors: Hiroaki Saito, Yoshiro Tasaka, Takashi Nomoto, Ayumu Takagi, Toru Kato, Naoki Terada
  • Publication number: 20240425712
    Abstract: An ink jet clear ink composition includes a photoinitiator, a fluorescent whitening agent, and a polymerizable monomer, the photoinitiator includes ethyl phenyl(2,4,6-trimethylbenzoyl)phosphinate, the polymerizable monomer includes an aromatic ring-containing monomer and a hydroxy group-containing monomer, and the fluorescent whitening agent is present at a content of 0.2 percent by mass or more with respect to a total mass of the ink jet clear ink composition.
    Type: Application
    Filed: June 21, 2024
    Publication date: December 26, 2024
    Inventors: Yusuke FUJISAWA, Toru SAITO
  • Publication number: 20240425713
    Abstract: A nonaqueous ink jet ink composition is used for a recording method which performs a long printing operation without a step of taking measures against nozzle missing, and the ink jet ink composition described above includes a polymerizable monomer, a liquid photoinitiator in the form of a liquid at 20° C., and a solid photoinitiator in the form of a solid at 20° C. at a content of zero percent by mass or more and 1.5 percent by mass or less with respect to a total mass of the nonaqueous ink jet ink composition.
    Type: Application
    Filed: June 21, 2024
    Publication date: December 26, 2024
    Inventors: Toru SAITO, Yusuke FUJISAWA
  • Patent number: 12083209
    Abstract: An oral care composition including greater than 0.0% of an antimicrobial agent that is cetylpyridinium chloride (CPC), a cationic surfactant, an emulsifier, and less than 0.5% by weight of a thickener, such as hydroxyethylcellulose.
    Type: Grant
    Filed: February 12, 2021
    Date of Patent: September 10, 2024
    Assignee: SUNSTAR AMERICAS, INC.
    Inventors: Kana Hashimoto, Toru Saito
  • Publication number: 20240294024
    Abstract: An ink jet recording method includes ejecting a radiation-curable ink jet composition to a recording medium from an ink jet head, and curing the ink jet composition ejected to the recording medium by irradiating with radiation from a LED irradiator having a peak wavelength of 250 to 310 nm to form a cured coating film. The ink jet composition contains a polymerizable compound and an ?-hydroxyketone-based initiator.
    Type: Application
    Filed: May 2, 2024
    Publication date: September 5, 2024
    Inventors: Toru SAITO, Kiyoshi NAKAMURA, Toshiyuki YODA, Midori SEKINE
  • Patent number: 12036806
    Abstract: An ink jet recording method includes ejecting a radiation-curable ink jet composition to a recording medium from an ink jet head, and curing the ink jet composition ejected to the recording medium by irradiating with radiation from a LED irradiator having a peak wavelength of 250 to 310 nm to form a cured coating film. The ink jet composition contains a polymerizable compound and an ?-hydroxyketone-based initiator.
    Type: Grant
    Filed: December 27, 2021
    Date of Patent: July 16, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Toru Saito, Kiyoshi Nakamura, Toshiyuki Yoda, Midori Sekine
  • Patent number: 11987715
    Abstract: A radiation curable ink jet composition includes polymerizable compounds and a photopolymerization initiator, the polymerizable compounds include a monofunctional monomer, a content of the monofunctional monomer with respect to a total mass of the polymerizable compounds is 90 percent by mass or more, and the photopolymerization initiator includes ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: May 21, 2024
    Assignee: SEIKO EPSON CORPORATION
    Inventors: Naoki Koike, Toru Saito, Kyohei Tanaka, Kiyoshi Nakamura
  • Publication number: 20240052185
    Abstract: A radiation curable ink jet composition includes polymerizable compounds and a photopolymerization initiator, the polymerizable compounds include a monofunctional monomer, a content of the monofunctional monomer with respect to a total mass of the polymerizable compounds is 90 percent by mass or more, and the photopolymerization initiator includes ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate.
    Type: Application
    Filed: October 11, 2023
    Publication date: February 15, 2024
    Inventors: Naoki KOIKE, Toru SAITO, Kyohei TANAKA, Kiyoshi NAKAMURA
  • Patent number: 11898042
    Abstract: The present invention provides a photocurable ink composition for ink jet recording with excellent curability. The photocurable ink composition for ink jet recording includes polymerizable compounds, a photopolymerization initiator, and a colorant, wherein the polymerizable compounds include a vinyl ether group-containing (meth)acrylate represented by general formula (I): CH2?CR1—COOR2—O—CH?CH—R3??(I) (wherein R1 is a hydrogen atom or a methyl group, R2 is a divalent organic residue having 2 to 20 carbon atoms, and R3 is a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms) and phenoxyethyl (meth)acrylate.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: February 13, 2024
    Assignee: Seiko Epson Corporation
    Inventors: Hiroaki Kida, Hiroshi Fukumoto, Toru Saito, Keitaro Nakano, Hiroki Nakane
  • Patent number: 11884828
    Abstract: A radiation curable ink jet composition includes polymerizable compounds; and a photopolymerization initiator, the polymerizable compounds include a vinyl ether group-containing (meth)acrylate represented by the following general formula (I), a content of the vinyl ether group-containing (meth)acrylate with respect to a total mass of the radiation curable ink jet composition is 15 percent by mass or more, and the photopolymerization initiator includes ethyl (2,4,6-trimethylbenzoyl)phenylphosphinate. H2C?CR1—CO—OR2—O—CH?CH—R3??(I) In the above formula, R1 represents a hydrogen atom or a methyl group, R2 represents a divalent organic residue having 2 to 20 carbon atoms, and R3 represents a hydrogen atom or a monovalent organic residue having 1 to 11 carbon atoms.
    Type: Grant
    Filed: March 24, 2021
    Date of Patent: January 30, 2024
    Inventors: Kiyoshi Nakamura, Toru Saito, Toshiyuki Yoda, Naoki Koike
  • Publication number: 20230407120
    Abstract: A radiation curable ink jet composition contains: a dispersant; a polymerizable compound; and a hindered amine compound represented by the following general formula (1) or (2), the radiation curable ink jet composition has a viscosity of 50 mPa·s or less at 25° C., and the dispersant has an acid value of 30 mgKOH/g or more, In the formula (1), R1 represents H—, O?, or R2—CO—, and R2 represents an alkyl group having 1 to 6 carbon atoms or a substituted or unsubstituted aromatic ring, In the formula (2), R3 represents —OCO—R4—COO—, and R4 represents an alkyl group having 1 to 12 carbon atoms.
    Type: Application
    Filed: December 13, 2022
    Publication date: December 21, 2023
    Inventors: Toru SAITO, Toshiyuki YODA, Yoshinobu YOSHIDA, Kiyoshi NAKAMURA
  • Publication number: 20230348742
    Abstract: A radiation curable ink jet composition according to an embodiment of the present disclosure is a radiation curable ink jet composition including a polymerizable compound, the polymerizable compound includes at least one selected from the group consisting of glycerin diacrylate and glycerin triacrylate, and a total content of the glycerin diacrylate and the glycerin triacrylate with respect to a total mass of the ink jet composition is 20 percent by mass or more.
    Type: Application
    Filed: April 27, 2023
    Publication date: November 2, 2023
    Inventors: Toru SAITO, Kiyoshi NAKAMURA, Yoshinobu YOSHIDA, Toshiyuki YODA
  • Patent number: 11793692
    Abstract: Provided is a wheelchair that can be operated easily with either a right or left hand. The wheelchair is provided with; right and left handrims; a rotary shaft for transmitting a rotational force generated by a handrim on one side to a wheel on the opposite side via a drive mechanism; and a wheel hub for transmitting the rotational force generated by the handrim on the one side to the wheel on the same side via the drive mechanism, wherein the drive mechanism includes two pairs of right and left sensors respectively disposed on an outer surface of each of the handrims, a first non-excitation electromagnetic clutch for transmitting the rotational force to the right wheel, a second non-excitation electromagnetic clutch for transmitting the rotational force to the wheel on the opposite side, and a third non-excitation electromagnetic clutch for transmitting the rotational force to the left wheel.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: October 24, 2023
    Inventor: Toru Saito
  • Patent number: 11793691
    Abstract: Provided is a lightweight and inexpensive wheelchair that can be easily operated with either a right or left hand. The wheelchair according to the present invention is provided with; a pair of handrims having a first portion and a second portion; a drive mechanism for transmitting a first rotational force generated by the first portion on one side to a wheel on another side, and for transmitting a second rotational force generated by the first portion on the other side to a wheel on the one side, wherein the drive mechanism includes an axle on the one side, an axle on the other side connected to the axle on the one side via a rotary shaft, a first two-way clutch located on the axle on the one side, and a second two-way clutch located on the axle on the other side.
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: October 24, 2023
    Inventor: Toru Saito
  • Publication number: 20230293366
    Abstract: Provided is a lightweight and inexpensive wheelchair that can be easily operated with either a right or left hand. The wheelchair according to the present invention is provided with; a pair of handrims having a first portion and a second portion; a drive mechanism for transmitting a first rotational force generated by the first portion on one side to a wheel on another side, and for transmitting a second rotational force generated by the first portion on the other side to a wheel on the one side, wherein the drive mechanism includes an axle on the one side, an axle on the other side connected to the axle on the one side via a rotary shaft, a first two-way clutch located on the axle on the one side, and a second two-way clutch located on the axle on the other side.
    Type: Application
    Filed: May 25, 2023
    Publication date: September 21, 2023
    Inventor: Toru SAITO
  • Publication number: 20230227676
    Abstract: A method for producing a printed material includes an application step of applying a radiation-curable ink composition onto a shrink film, and a curing step of irradiating the radiation-curable ink composition on the shrink film with radiation to form a cured ink coating, thus obtaining a printed material. The radiation-curable ink composition contains one or more polymerizable compounds whose weighted average glass transition temperature is 20° C. to 70° C.
    Type: Application
    Filed: January 17, 2023
    Publication date: July 20, 2023
    Inventors: Chigusa SATO, Emi TAKEUCHI, Toru SAITO
  • Patent number: 11680177
    Abstract: A radiation-curing ink jet ink composition includes a urethane (meth)acrylate including one (meth)acryloyl group, the amount of the urethane (meth)acrylate being 5.0% by mass or more and 30.0% by mass or less of the total amount of the ink composition, and a (meth)acrylate including an aromatic ring and one (meth)acryloyl group, the amount of the (meth)acrylate being 4.0% by mass or more and 50.0% by mass or less of the total amount of the ink composition.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: June 20, 2023
    Inventors: Naoki Koike, Toru Saito, Toshiyuki Yoda
  • Patent number: 11629260
    Abstract: A radiation-curable ink jet composition includes a multifunctional monomer and a vinyl methyl oxazolidinone. The content of the multifunctional monomer is 5 to 50 mass % based on the total amount of the radiation-curable ink jet composition.
    Type: Grant
    Filed: June 28, 2022
    Date of Patent: April 18, 2023
    Inventors: Toru Saito, Naoki Koike, Toshiyuki Yoda, Kyohei Tanaka
  • Publication number: 20230105707
    Abstract: A radiation-curable ink jet composition includes a polyfunctional monomer containing a predetermined acrylic compound, and a monofunctional monomer containing vinyl methyl oxazolidinone.
    Type: Application
    Filed: September 22, 2022
    Publication date: April 6, 2023
    Inventors: Toru SAITO, Toshiyuki YODA, Kyohei TANAKA, Midori SEKINE