Patents by Inventor Tomoki Dohi

Tomoki Dohi 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: 12503606
    Abstract: The present invention provides an alumina particle containing molybdenum (Mo) and an inorganic coating part provided on the surface of the alumina particle.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: December 23, 2025
    Assignee: DIC Corporation
    Inventors: Meng Li, Shingo Takada, Tomoki Dohi, Masamichi Hayashi, Jianjun Yuan, Taro Morimitsu, Shaowei Yang, Cheng Liu, Wei Zhao
  • Patent number: 12486176
    Abstract: The composite particle of the present invention includes an alumina particle having a card-house structure which is formed of three or more pieces of plate-like alumina and in which the pieces of plate-like alumina are fixed to each other; and an inorganic coating part provided on a surface of the plate-like alumina.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: December 2, 2025
    Assignee: DIC Corporation
    Inventors: Meng Li, Shingo Takada, Tomoki Dohi, Jianjun Yuan, Cheng Liu, Wei Zhao, Shaowei Yang
  • Patent number: 12459830
    Abstract: A plate-like alumina particle, in which a ratio I(006)/I(ll3) of a peak intensity I(006) at 20=41.6±0.3 degrees which corresponds to a (006) face to a peak intensity I(113) at 20=43.3±0.3 degrees which corresponds to a (113) face of diffraction peaks obtained by X-ray diffraction measurement using a Cu-Ka ray, is 0.2 or more. A method for manufacturing the plate-like alumina particle including mixing an aluminum compound including an aluminum element, a molybdenum compound including a molybdenum element, and a shape-controlling agent to produce a mixture and firing the mixture.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: November 4, 2025
    Assignee: DIC Corporation
    Inventors: Shaowei Yang, Tomoki Dohi, Hironobu Oki, Jianjun Yuan, Cheng Liu, Meng Li, Wei Zhao
  • Publication number: 20250304744
    Abstract: Provided are a copolyester resin having excellent thermoformability and biodegradability and a method for producing the copolyester resin. The copolyester resin includes a combination of a biodegradable block (X) being a biodegradable constituent unit and a non-biodegradable block (Y) being a non-biodegradable constituent unit.
    Type: Application
    Filed: May 23, 2023
    Publication date: October 2, 2025
    Inventors: Atsuhisa MIYAWAKI, Shuhei NISHIZAWA, Tomoki DOHI, Shou INAGAKI, Hidetomo KAI, Chika HARANO, Takashi MIHARA
  • Publication number: 20250145768
    Abstract: It is an object of the present invention to provide a cross-linked poly(aspartic acid) product that can retain the gel shape, water absorbency, water retentivity, and other performance because it does not undergo hydrolysis over time owing to the absence of an ester bond, and a method for producing the cross-linked poly(aspartic acid) product. The cross-linked poly(aspartic acid) product according to an embodiment of the present invention is a reaction product of a polysuccinimide (PSI), a compound (A: a1-A1-a2) containing a first functional group (a1) and a second functional group (a2), and a polyfunctional epoxy compound (B). The cross-linked poly(aspartic acid) product contains a cross-linked structure (PABAP) represented by PSI-a1-A1-a2-B-a2-A1-a1-PSI, the cross-linked structure (PABAP) is partially hydrolyzed, and the second functional group of the compound (A) does not react with the polysuccinimide (PSI) or is less reactive with the polysuccinimide (PSI) than the first functional group.
    Type: Application
    Filed: November 24, 2022
    Publication date: May 8, 2025
    Applicant: DIC Corporation
    Inventors: Tomoki Dohi, Manabu Kambara, Xin Jiang, Qing-Zhang Cui, Jin Guo, Chang-Jun Deng
  • Patent number: 12129184
    Abstract: A molybdenum sulfide powder according to the invention contains molybdenum disulfide having a 3R crystal structure. A heavy-metal adsorbent according to the invention contains molybdenum sulfide particles, and the molybdenum sulfide particles have a median diameter D50 of 10 nm to 1,000 nm obtained by a dynamic light scattering type particle diameter distribution measuring device. A photothermal conversion material according to the invention contains a material containing molybdenum sulfide particles and generates heat by absorbing light energy.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: October 29, 2024
    Assignee: DIC Corporation
    Inventors: Hironobu Oki, Yusuke Kano, Tomoki Dohi, Seiji Mizuta, Minoru Tabuchi, Jianjun Yuan, Masato Otsu
  • Publication number: 20240191023
    Abstract: A modified polyester resin production method, including a step of allowing a polyhydroxyalkanoic acid to react with a reactive raw material satisfying at least any one of Condition (A-1) and Condition (A-2) described below, and Condition (B) described below, in the absence of a solvent and at a reaction temperature lower than a decomposition temperature of the polyhydroxyalkanoic acid. Condition (A-1): The reactive raw material contains a diol and a dicarboxylic acid component. Condition (A-2): The reactive raw material contains a polyester resin other than the polyhydroxyalkanoic acid. Condition (B): A ratio of an aromatic monomer configuring the reactive raw material in the reactive raw material is 0% by mole or more and less than 50% by mole.
    Type: Application
    Filed: February 17, 2022
    Publication date: June 13, 2024
    Applicant: DIC Corporation
    Inventors: Yuuichi Satokawa, Shou Inagaki, Mizuki Endou, Hidetomo Kai, Akira Takano, Tomoki Dohi
  • Publication number: 20230257272
    Abstract: A two-phase bicontinuous silica structure includes a phase containing silica as a main component and an air phase. The silica has a Q4 bond as a chemical bond, a content of molybdenum in the whole amount of the two-phase bicontinuous silica structure is 2.0% by mass or less, and the phase containing silica as a main component is amorphous.
    Type: Application
    Filed: April 4, 2023
    Publication date: August 17, 2023
    Applicant: DIC Corporation
    Inventors: Takanori Watanabe, Tomoki Dohi, Jianjun Yuan
  • Patent number: 11718809
    Abstract: The present invention relates to a lubricant containing molybdenum sulfide particles, and the molybdenum sulfide particles contain molybdenum disulfide having a 3R crystal structure. The present invention relates to a lubricating composition containing molybdenum sulfide particles, which are the lubricant, and a base oil which is a mineral oil, a synthetic oil, or a partially synthetic oil.
    Type: Grant
    Filed: December 7, 2020
    Date of Patent: August 8, 2023
    Assignee: DIC Corporation
    Inventors: Yusuke Kano, Hironobu Oki, Tomoki Dohi, Jianjun Yuan
  • Publication number: 20230131773
    Abstract: The composite particle of the present invention includes an alumina particle having a card-house structure which is formed of three or more pieces of plate-like alumina and in which the pieces of plate-like alumina are fixed to each other; and an inorganic coating part provided on a surface of the plate-like alumina.
    Type: Application
    Filed: October 9, 2019
    Publication date: April 27, 2023
    Applicant: DIC Corporation
    Inventors: Meng Li, Shingo Takada, Tomoki Dohi, Jianjun Yuan, Cheng Liu, Wei Zhao, Shaowei Yang
  • Publication number: 20230102456
    Abstract: The present invention provides an alumina particle containing molybdenum (Mo) and an inorganic coating part provided on the surface of the alumina particle.
    Type: Application
    Filed: October 9, 2019
    Publication date: March 30, 2023
    Applicant: DIC Corporation
    Inventors: Meng Li, Shingo Takada, Tomoki Dohi, Masamichi Hayashi, Jianjun Yuan, Taro Morimitsu, Shaowei Yang, Cheng Liu, Wei Zhao
  • Publication number: 20230096825
    Abstract: A plate-like alumina particle, in which a ratio I (006)/I (113) of a peak intensity 1(006) at 20=41.6±0.3 degrees which corresponds to a (006) face to a peak intensity I(113) at 20=43.3±0.3 degrees which corresponds to a (113) face of diffraction peaks obtained by X-ray diffraction measurement using a Cu—K? ray, is 0.2 or more. A method for manufacturing the plate-like alumina particle including mixing an aluminum compound including an aluminum element, a molybdenum compound including a molybdenum element, and a shape-controlling agent to produce a mixture and firing the mixture.
    Type: Application
    Filed: October 9, 2019
    Publication date: March 30, 2023
    Inventors: Shaowei Yang, Tomoki DOHI, Hironobu OKI, Jianjun YUAN, Cheng LIU, Meng LI, Wei ZHAO
  • Publication number: 20220403277
    Abstract: The present invention relates to a lubricant containing molybdenum sulfide particles, and the molybdenum sulfide particles contain molybdenum disulfide having a 3R crystal structure. The present invention relates to a lubricating composition containing molybdenum sulfide particles, which are the lubricant, and a base oil which is a mineral oil, a synthetic oil, or a partially synthetic oil.
    Type: Application
    Filed: December 7, 2020
    Publication date: December 22, 2022
    Applicant: DIC Corporation
    Inventors: Yusuke Kano, Hironobu Oki, Tomoki Dohi, Jianjun Yuan
  • Publication number: 20220348476
    Abstract: A molybdenum sulfide powder according to the invention contains molybdenum disulfide having a 3R crystal structure. A heavy-metal adsorbent according to the invention contains molybdenum sulfide particles, and the molybdenum sulfide particles have a median diameter Dso of 10 nm to 1,000 nm obtained by a dynamic light scattering type particle diameter distribution measuring device. A photothermal conversion material according to the invention contains a material containing molybdenum sulfide particles and generates heat by absorbing light energy.
    Type: Application
    Filed: September 24, 2020
    Publication date: November 3, 2022
    Applicant: DIC Corporation
    Inventors: Hironobu OKI, Yusuke KANO, Tomoki DOHI, Seiji MIZUTA, Minoru TABUCHI, Jianjun YUAN, Masato OTSU
  • Patent number: 11286384
    Abstract: The present invention, in an aspect, provides a resin composition that contains a vinyl polymer and a smectite with partially immobilized lithium.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: March 29, 2022
    Assignees: DIC Corporation, National Institute of Advanced Industrial Science and Technology
    Inventors: Yusaku Goto, Tomoki Dohi, Michiya Nakashima, Yusho Usami, Takeo Ebina, Ryo Ishii, Takafumi Aizawa
  • Publication number: 20200002527
    Abstract: The present invention, in an aspect, provides a resin composition that contains a vinyl polymer and a smectite with partially immobilized lithium.
    Type: Application
    Filed: March 14, 2018
    Publication date: January 2, 2020
    Inventors: Yusaku Goto, Tomoki Dohi, Michiya Nakashima, Yusho Usami, Takeo Ebina, Ryo Ishii, Takafumi Aizawa