Patents by Inventor Akitomo Yokoi

Akitomo Yokoi 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).

  • Six-blade biaxial rotary positive-displacement pump
    Patent number: 8459974
    Abstract: A six-blade biaxial rotary positive-displacement pump includes a casing formed with a suction port and a discharge port, a pair of rotors accommodated in the casing and having rotor shafts rotatably mounted on housings fixed to opposed ends of the casing, respectively. Each rotor is formed with six blades extending radially equiangularly about the rotor shaft. Each blade is formed so as to have a constant thickness in a rotational direction of each rotor. Each blade has an apex and a valley, and a distance between the apex and the valley is set so as to range from three to five times larger than the thickness of each blade.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: June 11, 2013
    Assignee: Anlet Co., Ltd.
    Inventors: Yasuna Yokoi, Akitomo Yokoi, Yoshinobu Ito, Toshiaki Kato, Masafumi Takeda, Kouiti Kume, Hideyuki Okano, Takashi Yokoi
  • SIX-BLADE BIAXIAL ROTARY POSITIVE-DISPLACEMENT PUMP
    Publication number: 20120093673
    Abstract: A six-blade biaxial rotary positive-displacement pump includes a casing formed with a suction port and a discharge port, a pair of rotors accommodated in the casing and having rotor shafts rotatably mounted on housings fixed to opposed ends of the casing, respectively. Each rotor is formed with six blades extending radially equiangularly about the rotor shaft. Each blade is formed so as to have a constant thickness in a rotational direction of each rotor. Each blade has an apex and a valley, and a distance between the apex and the valley is set so as to range from three to five times larger than the thickness of each blade.
    Type: Application
    Filed: April 27, 2011
    Publication date: April 19, 2012
    Inventors: Yasuna Yokoi, Akitomo Yokoi, Yoshinobu Ito, Toshiaki Kato, Masafumi Takeda, Kouiti Kume, Hideyuki Okano, Takashi Yokoi
  • Decorative board
    Patent number: 8071224
    Abstract: A decorative board in the present invention includes: a core layer constituted by a prepreg impregnated with a slurry containing (a) an organic resin component including a phenol-formaldehyde resin and an amino-formaldehyde resin, (b) one or more selected from a group consisting of carbonate, silica, talc and fly ash, and (c) a metal hydroxide; and a decorative layer.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: December 6, 2011
    Assignee: Aica Kogyo Co., Ltd.
    Inventors: Atsushi Iwasaki, Koshi Suzuki, Akitomo Yokoi, Masataka Yasui
  • DECORATIVE BOARD
    Publication number: 20100136351
    Abstract: A decorative board in the present invention includes: a core layer constituted by a prepreg impregnated with a slurry containing (a) an organic resin component including a phenol-formaldehyde resin and an amino-formaldehyde resin, (b) one or more selected from a group consisting of carbonate, silica, talc and fly ash, and (c) a metal hydroxide; and a decorative layer.
    Type: Application
    Filed: March 25, 2008
    Publication date: June 3, 2010
    Applicant: AICA KOGYO CO., LTD.
    Inventors: Atsushi Iwasaki, Koshi Suzuki, Akitomo Yokoi, Masataka Yasui