The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 1993
Filed:
Feb. 28, 1992
Haruhiko Tanaka, Yokohama, JP;
Taiji Kambayashi, Yamatotakada, JP;
Yasumasa Sugiyama, Oizumimachi, JP;
Toshitake Nagai, Ojimamachi, JP;
Koiti Nagata, Ota, JP;
Kohei Kubota, Tokyo, JP;
Kazuo Hirano, Tokyo, JP;
Miura Dolphins Co., Ltd., Tokyo, JP;
Tonen Corporation, Tokyo, JP;
Osaka Organic Chemical Industry Co., Ltd., Osaka, JP;
Tonen Chemical Corp., Tokyo, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Ohtsuka, Masahisa, Ohizumimachi, JP;
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.