Patents Assigned to Ohtsuka, Masahisa
  • Artificial snow in an aggregate form of snow granules
    Patent number: 5436039
    Abstract: Artificial snow granule in granule form comprising a super absorbent polymer in granule form as a nucleus and an ice layer surrounding the nucleus is provided here. An aggregate form is provided by linkage of adjacent two ice layers and/or two granules. Further, a snow granule quality improver is provided. A method for making the above-mentioned snow granule in granule or an aggregate form is also provided here.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: July 25, 1995
    Assignees: Miura Dolphins, Co., Ltd., Tonen Corporation, Osaka Organic Chemical Industry Co., Ltd., Tonen Chemical Corp., Sanyo Electric Co., Ltd., Ohtsuka, Masahisa, Ohizumimachi
    Inventors: Yuichiro Miura, Kazuo Hirano, Takayuki Nate, Taiji Kambayashi, Masahisa Ohtsuka, Toshitake Nagai
  • Method for making ice slab and/or artificial snow
    Patent number: 5261245
    Abstract: A method for easily making an ice slab serving as the foundation of an artificial snow skiing field and artificial snow whose upper layer is powdery by flooding aqueous slurry made by adding water to granular wet water absorbent polymer on a slope of a natural skiing field or a slant or horizontal surface of a natural skiing field or indoor artificial snow skiing field equipped with a cooling system, obtaining the deposit layer of the granular wet water absorbent polymer in which water is separated from the slurry and freezing the deposit layer.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: November 16, 1993
    Assignees: Miura Dolphins Co., Ltd., Tonen Corporation, Osaka Organic Chemical Industry Co., Ltd., Tonen Chemical Corp., Sanyo Electric Co., Ltd., Ohtsuka, Masahisa
    Inventors: Haruhiko Tanaka, Taiji Kambayashi, Yasumasa Sugiyama, Toshitake Nagai, Koiti Nagata, Kohei Kubota, Kazuo Hirano