Patents by Inventor Manabu YUASA

Manabu YUASA 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).

  • Cerium based particles
    Patent number: 11578235
    Abstract: The present invention relates to cerium-based particles and their use as a component of a composition for polishing. The present invention also relates to the method of preparation of the cerium-based particles.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: February 14, 2023
    Assignee: RHODIA OPERATIONS
    Inventors: Eisaku Suda, Manabu Yuasa, Réka Toth
  • CERIUM BASED PARTICLES, PROCESS FOR PRODUCING THE SAME AND USES THEREOF IN POLISHING
    Publication number: 20230041600
    Abstract: The disclosure relates to cerium based particles having a rough surface and their use as a component of a polishing composition, especially for chemical mechanical polishing. The cerium based particles have substantially the shape of polyhedrons which have one or more faces with protrusions thereon, said protrusions being integrally formed with said cerium based particles. The present disclosure also relates to the method of preparation of the cerium based particles.
    Type: Application
    Filed: November 25, 2020
    Publication date: February 9, 2023
    Applicant: RHODIA OPERATIONS
    Inventors: Marie Plissonneau, Réka Toth, Thierry Le Mercier, Valérie Buissette, Manabu Yuasa, Eisaku Suda
  • Liquid suspension of cerium oxide particles
    Patent number: 11028288
    Abstract: The present invention relates to a suspension of cerium oxide particles in a liquid phase, in which said particles comprise secondary particles comprising primary particles, and a process for preparing said liquid suspension in which the cerium IV/total cerium molar ratio before precipitation is comprised between 1/10000 and 1/500000 and that the thermal treatment is being carried out under an inert atmosphere.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: June 8, 2021
    Assignee: RHODIA OPERATIONS
    Inventors: Eisaku Suda, Manabu Yuasa, Takao Sekimoto
  • Metal doped cerium oxide compositions
    Patent number: 10844258
    Abstract: The present invention concerns a process for the production of metal doped cerium compositions comprising a cerium oxide and a metal oxide by precipitation. The invention also concerns metal doped cerium compositions providing high crystallites size and exhibiting high thermal stabilities, which may be used as a catalytic support or for polishing applications.
    Type: Grant
    Filed: June 24, 2015
    Date of Patent: November 24, 2020
    Assignee: RHODIA OPERATIONS
    Inventors: Naotaka Ohtake, Manabu Yuasa, Toshihiro Sasaki, Eisaku Suda, Lauriane Dalencon
  • CERIUM BASED PARTICLES
    Publication number: 20200198982
    Abstract: The present invention relates to cerium-based particles and their use as a component of a composition for polishing. The present invention also relates to the method of preparation of the cerium-based particles.
    Type: Application
    Filed: June 11, 2018
    Publication date: June 25, 2020
    Inventors: Eisaku SUDA, Manabu YUASA, Réka TOTH
  • LIQUID SUSPENSION OF CERIUM OXIDE PARTICLES
    Publication number: 20200087539
    Abstract: The present invention relates to a suspension of cerium oxide particles in a liquid phase, in which said particles comprise secondary particles comprising primary particles, and a process for preparing said liquid suspension in which the cerium IV/total cerium molar ratio before precipitation is comprised between 1/10000 and 1/500000 and that the thermal treatment is being carried out under an inert atmosphere.
    Type: Application
    Filed: May 28, 2019
    Publication date: March 19, 2020
    Inventors: Eisaku SUDA, Manabu YUASA, Takao SEKIMOTO
  • Liquid suspension of cerium oxide particles
    Patent number: 10344183
    Abstract: The present invention relates to a suspension of cerium oxide particles in a liquid phase, in which said particles comprise secondary particles comprising primary particles, and a process for preparing said liquid suspension in which the cerium IV/total cerium molar ratio before precipitation is comprised between 1/10000 and 1/500000 and that the thermal treatment is being carried out under an inert atmosphere.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: July 9, 2019
    Assignee: Rhodia Operations
    Inventors: Eisaku Suda, Manabu Yuasa, Takao Sekimoto
  • METAL DOPED CERIUM OXIDE COMPOSITIONS
    Publication number: 20170152421
    Abstract: The present invention concerns a process for the production of metal doped cerium compositions comprising a cerium oxide and a metal oxide by precipitation. The invention also concerns metal doped cerium compositions providing high crystallites size and exhibiting high thermal stabilities, which may be used as a catalytic support or for polishing applications.
    Type: Application
    Filed: June 24, 2015
    Publication date: June 1, 2017
    Inventors: Naotaka OHTAKE, Manabu YUASA, Toshihiro SASAKI, Eisaku SUDA, Lauriane DALENCON
  • LIQUID SUSPENSION OF CERIUM OXIDE PARTICLES
    Publication number: 20160312069
    Abstract: The present invention relates to a suspension of cerium oxide particles in a liquid phase, in which said particles comprise secondary particles comprising primary particles, and a process for preparing said liquid suspension in which the cerium IV/total cerium molar ratio before precipitation is comprised between 1/10000 and 1/500000 and that the thermal treatment is being carried out under an inert atmosphere.
    Type: Application
    Filed: December 16, 2014
    Publication date: October 27, 2016
    Inventors: Eisaku SUDA, Manabu YUASA, Takao SEKIMOTO