Patents by Inventor Kenji Hirai

Kenji Hirai 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: 20240190156
    Abstract: A thermosensitive recording medium comprising an undercoat layer provided on a substrate, and a thermosensitive recording layer containing a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent provided on the undercoat layer, wherein the thermosensitive recording layer contains as the electron accepting color developing agent a urea compound represented by the following general formula (Formula 1) (wherein X represents —O— or —NH—, R1 represents a hydrogen atom or —SO2—R3, R3 represents a substituted or unsubstituted alkyl group, aralkyl group or aryl group, R2 represents a hydrogen atom or an alkyl group, m represents an integer of 0 to 2, and n represents 0 or 1), and wherein the undercoat layer contains 50 to 95 weight % of a pigment by solid and 50 weight % or more of plastic hollow particles by solid with respect to the pigment.
    Type: Application
    Filed: March 10, 2022
    Publication date: June 13, 2024
    Inventors: Kenji HIRAI, Masaya TOSAKA, Yuuki INAMURA, Yoshimi MIDORIKAWA
  • Publication number: 20240125561
    Abstract: A cooling device includes: a container in which a refrigerant is sealed; an evaporating part that evaporates the refrigerant in a liquid phase by heat reception inside the container; a condensing part that condenses the refrigerant in a gas phase by heat dissipation inside the container; and a plate-shaped or block-shaped flow path member in which a plurality of flow paths configured to transport the refrigerant in a liquid phase from the condensing part to the evaporating part by surface tension inside the container is formed in parallel.
    Type: Application
    Filed: December 21, 2023
    Publication date: April 18, 2024
    Applicant: FUJITSU LIMITED
    Inventors: Kento OHGA, Hideo KUBO, Kenji SASABE, Masahide KODAMA, Atsushi ENDO, Keita HIRAI, Nobumitsu AOKI, Takashi URAI
  • Patent number: 11945249
    Abstract: The present invention provides a thermosensitive recording medium having a high degree of water resistance and excellent surface qualities. The thermosensitive recording medium has a thermosensitive recording layer comprising a colorless or pale colored basic leuco dye and an electron accepting developing agent on a substrate, but does not have a protective layer on the thermosensitive recording layer, and the thermosensitive recording layer further comprises (i) a carboxy-modified polyvinyl alcohol as a binder, (ii) an epichlorohydrin resin and a modified polyamine/amide resin (excluding those contained in the category of epichlorohydrin resin) as crosslinking agents, and (iii) an acrylic resin with a glass transition temperature (Tg) of lower than or equal to 50 degree C. and a minimum film forming temperature (MFT) of higher than or equal to 40 degree C.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: April 2, 2024
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Kentaro Kawasaki, Yoshimi Midorikawa, Kenji Hirai
  • Patent number: 11912775
    Abstract: A monoclonal antibody is provided which binds to a human CC chemokine receptor 1 (CCR1) and inhibits activation of the human CCR1, or an antibody fragment thereof. The monoclonal antibody binds to an extracellular region of a human CCR1 and inhibits activation of the human CCR1 by a human CC chemokine ligand 15 (CCL15). An antibody fragment thereof, a hybridoma producing the antibody, a nucleic acid having a nucleotide sequence encoding the antibody or the antibody fragment, a transformant cell containing a vector containing the nucleic acid, a method for producing the antibody or the antibody fragment using the hybridoma or the transformant cell; a therapeutic agent and a diagnostic agent containing the antibody or the antibody fragment, and a method for treating and diagnosing a CCR1-related disease using the antibody or the antibody fragment are also provided.
    Type: Grant
    Filed: July 18, 2018
    Date of Patent: February 27, 2024
    Assignees: KYOWA KIRIN CO., LTD., KYOTO UNIVERSITY
    Inventors: Masayuki Kai, Shinya Ogawa, Makoto Taketo, Kenji Kawada, Hideyo Hirai, Yoshiharu Sakai, Taira Maekawa
  • Patent number: 11912052
    Abstract: Provided is a thermosensitive recording medium having excellent oil resistance among various performances required for the thermosensitive recording medium. The thermosensitive recording medium has a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer contains N-[2-(3-phenylureido)phenyl] benzenesulfonamide and an urea-based compound represented by the general formula 1 as the electron accepting color developing agents, wherein R1 represents a substituted or unsubstituted alkyl group, aralkyl group or aryl group, and R2 represents a hydrogen atom or an alkyl group.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: February 27, 2024
    Inventors: Kentaro Kawasaki, Yuka Murata, Kenji Hirai, Yoshimi Midorikawa
  • Publication number: 20230144275
    Abstract: Provided is a thermosensitive recording medium being excellent in oil resistance among various performances required for the thermosensitive recording medium, and being further excellent in heat resistance, plasticizer resistance, and printing (recording) run-ability. That is a thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer contains at least two kinds of urea compounds. The two kinds of urea compounds comprise the first urea compound being represented by the following general formula 1, and the second urea compound being represented by the following general formula 2.
    Type: Application
    Filed: February 8, 2021
    Publication date: May 11, 2023
    Inventors: Kenji Hirai, Kentaro Kawasaki, Yuka Murata, Yoshimi Midorikawa
  • Patent number: 11613850
    Abstract: An object is to provide a base paper for paper tubes that has lower environmental impact and is used for manufacturing of paper tubes offering excellent water resistance. As a solution, a base paper for paper tubes is provided, wherein: it has two or more but no more than five paper layers; the paper layers are bonded by a water-soluble or water-dispersible adhesive; and its elution rate is 2.0 percent or lower.
    Type: Grant
    Filed: September 19, 2019
    Date of Patent: March 28, 2023
    Assignee: NIPPON PAPER INDUSTRIES CO., LTD.
    Inventors: Junji Yamamoto, Youko Jyoumei, Kenji Hirai
  • Publication number: 20230027721
    Abstract: Provided is a thermosensitive recording medium having a sufficient water resistance to moisture and humidity, such as for outdoor use in rainy weather and the like, and also having a superior color developing sensitivity, print image quality when printing at high speed, ink fixability and solvent resistance and the like. As the protective layer comprises a specific silane-modified acrylic resin which is an aqueous emulsion of core-shell type p articles, in a thermosensitive recording medium having a thermosensitive recording layer on a substrate and a protective layer on the thermosensitive recording layer, the thermosensitive re cording medium has a sufficient water resistance and also has a superior color developing sensitivity, print image quality when printing at high speed, ink fixability and solvent resistance and the like.
    Type: Application
    Filed: December 8, 2020
    Publication date: January 26, 2023
    Inventors: Kenji Hirai, Yoshimi Midorikawa, Yuka Murata, Kentaro Kawasaki
  • Publication number: 20220410610
    Abstract: Provided is a thermosensitive recording medium having excellent oil resistance among various performances required for the thermosensitive recording medium. The thermosensitive recording medium has a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer contains N-[2-(3-phenylureido)phenyl] benzenesulfonamide and an urea-based compound represented by the general formula 1 as the electron accepting color developing agents, wherein R1 represents a substituted or unsubstituted alkyl group, aralkyl group or aryl group, and R2 represents a hydrogen atom or an alkyl group.
    Type: Application
    Filed: November 11, 2020
    Publication date: December 29, 2022
    Inventors: Kentaro Kawasaki, Yuka Murata, Kenji Hirai, Yoshimi Midorikawa
  • Patent number: 11439721
    Abstract: To provide an aldehyde scavenger and a method for removing aldehydes by using the same, for quickly and continuously capturing aldehydes. An aldehyde scavenger comprising at least one O-substituted hydroxylamine or at least one chemically acceptable salt thereof, is used against an aldehyde generation source.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: September 13, 2022
    Assignees: TOSOH CORPORATION, Sagami Chemical Research Institute
    Inventors: Yukinori Sudo, Takahiro Masuda, Osamu Kobayashi, Takuri Ozaki, Kenji Hirai
  • Publication number: 20220161588
    Abstract: The present invention provides a thermosensitive recording medium having a high degree of water resistance and excellent surface qualities. The thermosensitive recording medium has a thermosensitive recording layer comprising a colorless or pale colored basic leuco dye and an electron accepting developing agent on a substrate, but does not have a protective layer on the thermosensitive recording layer, and the thermosensitive recording layer further comprises (i) a carboxy-modified polyvinyl alcohol as a binder, (ii) an epichlorohydrin resin and a modified polyamine/amide resin (excluding those contained in the category of epichlorohydrin resin) as crosslinking agents, and (iii) an acrylic resin with a glass transition temperature (Tg) of lower than or equal to 50 degree C. and a minimum film forming temperature (MFT) of higher than or equal to 40 degree C.
    Type: Application
    Filed: February 25, 2020
    Publication date: May 26, 2022
    Inventors: Kentaro KAWASAKI, Yoshimi MIDORIKAWA, Kenji HIRAI
  • Publication number: 20220042247
    Abstract: An object is to provide a base paper for paper tubes that has lower environmental impact and is used for manufacturing of paper tubes offering excellent water resistance. As a solution, a base paper for paper tubes is provided, wherein: it has two or more but no more than five paper layers; the paper layers are bonded by a water-soluble or water-dispersible adhesive; and its elution rate is 2.0 percent or lower.
    Type: Application
    Filed: September 19, 2019
    Publication date: February 10, 2022
    Inventors: Junji YAMAMOTO, Youko JYOUMEI, Kenji HIRAI
  • Publication number: 20200406658
    Abstract: Provided is a thermosensitive recording medium, which is excellent in color developing property, especially excellent in bar code readability, under severe environment, further, excellent in resistance to discoloration under severe environment. That is a thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer comprises, as the electron accepting color developing agent, a specific sulfone compound and a phenolic compound in a specific ratio, wherein the phenolic compound contains two or more hydroxyl groups and two or more diphenylsulfone backbone but contains neither urethane bond nor urea bond. The thermosensitive recording layer optionally may further comprise a specific urea-urethane-based compound.
    Type: Application
    Filed: March 1, 2019
    Publication date: December 31, 2020
    Inventors: Kenji Hirai, Koji Kutsuwa, Yoshimi Midorikawa
  • Publication number: 20200061225
    Abstract: To provide an aldehyde scavenger and a method for removing aldehydes by using the same, for quickly and continuously capturing aldehydes. An aldehyde scavenger comprising at least one O-substituted hydroxylamine or at least one chemically acceptable salt thereof, is used against an aldehyde generation source.
    Type: Application
    Filed: December 27, 2017
    Publication date: February 27, 2020
    Applicants: TOSOH CORPORATION, Sagami Chemical Research Institute
    Inventors: Yukinori SUDO, Takahiro MASUDA, Osamu KOBAYASHI, Takuri OZAKI, Kenji HIRAI
  • Patent number: 10527189
    Abstract: A valve actuator is a valve actuator that drives opening and closing of a poppet valve and includes a motor and a transmission mechanism that transmits a drive force of the motor to the poppet valve. The transmission mechanism includes a booster mechanism. The booster mechanism is a three-dimensional toggle mechanism that includes a cylinder, an input disc that rotates about an axis in the cylinder, an output disc that reciprocates along an axial direction in the cylinder, and a link that connects the input disc and the output disc.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: January 7, 2020
    Assignee: IHI Corporation
    Inventors: Kohei Taya, Hatsuo Mori, Kenji Hirai, Yu Hirata, Masahiro Tanaka, Takeshi Takaki
  • Patent number: 10464362
    Abstract: As a thermosensitive recording medium utilizes a coloring reaction between a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent, a thermosensitive recording medium using an environment-friendly color developing agent is provided. Provided is a thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer comprises a gluconolactone as the electron accepting color developing agent.
    Type: Grant
    Filed: October 19, 2016
    Date of Patent: November 5, 2019
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Yasuaki Matsumori, Akihito Ogino, Kenji Hirai
  • Publication number: 20180311987
    Abstract: As a thermosensitive recording medium utilizes a coloring reaction between a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent, a thermosensitive recording medium using an environment-friendly color developing agent is provided. Provided is a thermosensitive recording medium having a thermosensitive recording layer comprising a colorless or pale colored electron donating leuco dye and an electron accepting color developing agent on a substrate, wherein the thermosensitive recording layer comprises a gluconolactone as the electron accepting color developing agent.
    Type: Application
    Filed: October 19, 2016
    Publication date: November 1, 2018
    Inventors: Yasuaki Matsumori, Akihito Ogino, Kenji Hirai
  • Publication number: 20180245710
    Abstract: A valve actuator is a valve actuator that drives opening and closing of a poppet valve and includes a motor and a transmission mechanism that transmits a drive force of the motor to the poppet valve. The transmission mechanism includes a booster mechanism. The booster mechanism is a three-dimensional toggle mechanism that includes a cylinder, an input disc that rotates about an axis in the cylinder, an output disc that reciprocates along an axial direction in the cylinder, and a link that connects the input disc and the output disc.
    Type: Application
    Filed: April 30, 2018
    Publication date: August 30, 2018
    Applicant: IHI Corporation
    Inventors: Kohei TAYA, Hatsuo MORI, Kenji HIRAI, Yu HIRATA, Masahiro TANAKA, Takeshi TAKAKI
  • Patent number: 10000083
    Abstract: A thermosensitive recording medium is provided that is excellent in heat discoloration resistance in the blank portions and in bar code readability. It also has excellent water resistance and printing (recording) run-ability. The thermosensitive recording medium includes a support, a thermosensitive recording layer installed on the support, and a protective layer on the thermosensitive recording layer. The thermosensitive recording layer contains two kinds of electron accepting color developing agents, a sulfonic acid compound and a diphenyl sulfone compound. Both the thermosensitive recording layer and the protective layer contain crosslinking agents, and at least one, and preferably both, of the thermosensitive recording layer and the protective layer contain an ammonium zirconium carbonate as the crosslinking agent.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: June 19, 2018
    Assignee: Nippon Paper Industries Co., Ltd.
    Inventors: Akihito Ogino, Kenji Hirai
  • Patent number: D1021712
    Type: Grant
    Filed: August 10, 2022
    Date of Patent: April 9, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Nozomi Hirai, Yuki Isogai, Kazuhiro Sato, Takuya Ishibashi, Kenji Kido