Patents by Inventor Hiroo Mori

Hiroo Mori 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).

  • Process for producing a spherical silica gel
    Patent number: 6451862
    Abstract: A process for producing a spherical silica gel, which comprises supplying a liquid mixture of an alkali silicate solution and an acid solution to a spraying apparatus, spraying the liquid mixture to obtain droplets, bringing the droplets into contact with a liquid for recovering a silica gel, and recovering the formed spherical silica gel together with the liquid for recovering a silica gel, as a slurry.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: September 17, 2002
    Assignee: Asahi Glass Company, Limited
    Inventors: Makoto Kusaka, Hachiro Hirano, Masaharu Tanaka, Hiroo Mori
  • Method for producing spherical silica particles
    Patent number: 6267942
    Abstract: It is an object of the present invention to obtain solid spherical silica particles having no depression or crack on the surface. The present invention provides a process for producing spherical silica particles, which comprises dispersing silica gel particles having an average particle size of from 0.05 to 3.0 &mgr;m in a mixed solution of an alkali silicate and an acid, spraying the dispersion to obtain droplets, and heating the droplets in a gas and gelating the mixed solution portion of an alkali silicate and an acid in the droplets.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: July 31, 2001
    Assignee: Asahi Glass Company, Limited
    Inventors: Hiroo Mori, Makoto Kusaka, Hachiro Hirano
  • High concentration alumina sol of low viscosity
    Patent number: 5756001
    Abstract: An alumina sol having an alumina solid content of at least 10 wt % and a viscosity of not higher than 5 Pa.s measured by a Brookfield viscometer and containing a cation other than a hydrogen ion in a total ion equivalent concentration in the range of from 2.0.times.10.sup.-4 to 1.0.times.10.sup.-1 N and a method of preparing the same.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: May 26, 1998
    Assignee: Asahi Glass Company Ltd.
    Inventors: Hiroo Mori, Hachirou Hirano, Masaharu Tanaka, Kunihiko Terase
  • Zinc oxide-containing spherical silica and process for its production
    Patent number: 5738718
    Abstract: A process for producing zinc oxide-containing spherical silica, which comprises emulsifying, in an organic solvent containing a surfactant, a dispersion having zinc oxide with a particle size of from 0.005 to 0.5 .mu.m dispersed in an aqueous alkali metal silicate solution in an amount of from 10 to 70 wt % based on the total amount of zinc oxide and SiO.sub.2 in the aqueous alkali metal silicate solution, followed by gelation of the resulting emulsion with carbon dioxide gas.
    Type: Grant
    Filed: April 7, 1997
    Date of Patent: April 14, 1998
    Assignee: Asahi Glass Company Ltd.
    Inventors: Hiroo Mori, Hiroshi Funaki, Kunihiko Terase, Hachirou Hirano
  • Ultraviolet screening powder and cosmetics
    Patent number: 5582818
    Abstract: Herein disclosed are cosmetics having spherical silica containing an ultraviolet reflecting meterial surface-treated with platy N-lauroyl-L-lysine incorporated therein. According to the present invention, those cosmetics having spherical silica containing a conventional ultraviolet reflecting material blended therewith are improved in cosmetic functions such as spreadability upon application, lubricity upon application, smooth feeling on skins, adhesiveness to skins, water repellency, feeling, etc., maintaining the original ultraviolet screening effect.
    Type: Grant
    Filed: January 27, 1995
    Date of Patent: December 10, 1996
    Assignees: Ajinomoto Co., Inc., Asahi Glass Co., Ltd.
    Inventors: Noriyuki Nakanishi, Hiroo Mori